bump version

+BakeWrapperManager no longer singleton

.gitignore

@@ -7,3 +7,5 @@ run/
 build/
 classes/
 temp/
+logs
+src/main/javacc/mods

build.gradle.kts

@@ -1,51 +1,52 @@
-import net.fabricmc.loom.task.RemapJarTask
-import org.ajoberstar.grgit.Grgit
-
 plugins {
-    kotlin("jvm").version("1.3.60")
-    id("fabric-loom").version("0.2.6-SNAPSHOT")
-    id("org.ajoberstar.grgit").version("3.1.1")
+    kotlin("jvm").version("1.4.20")
+    id("net.minecraftforge.gradle").version("4.1.12")
+    id("org.spongepowered.mixin").version("0.7-SNAPSHOT")
+    id("com.intershop.gradle.javacc").version("4.0.0")
 }
-apply(plugin = "org.ajoberstar.grgit")
-
-val gitHash = (project.ext.get("grgit") as Grgit).head().abbreviatedId
-val semVer = "${project.version}+$gitHash"
-val jarName = "BetterFoliage-$semVer-Fabric-${properties["mcVersion"]}"
 
 repositories {
-    maven("http://maven.fabricmc.net/")
-    maven("https://minecraft.curseforge.com/api/maven")
-    maven("http://maven.modmuss50.me/")
-    maven("https://grondag-repo.appspot.com").credentials { username = "guest"; password = "" }
-    maven("https://jitpack.io")
+    maven("https://files.minecraftforge.net/maven")
+    maven("https://repo.spongepowered.org/maven")
+    maven("https://www.cursemaven.com")
+    maven("https://thedarkcolour.github.io/KotlinForForge/")
 }
 
 dependencies {
-    "minecraft"("com.mojang:minecraft:${properties["mcVersion"]}")
-    "mappings"("net.fabricmc:yarn:${properties["yarnMappings"]}:v2")
-
-    // basic Fabric stuff
-    "modImplementation"("net.fabricmc:fabric-loader:${properties["loaderVersion"]}")
-    "modImplementation"("net.fabricmc.fabric-api:fabric-api:${properties["fabricVersion"]}")
-    "modImplementation"("net.fabricmc:fabric-language-kotlin:${properties["fabricKotlinVersion"]}")
-
-    // configuration handling
-    "modImplementation"("io.github.prospector:modmenu:${properties["modMenuVersion"]}")
-    listOf("modImplementation", "include").forEach { configuration ->
-        configuration("me.shedaniel.cloth:config-2:${properties["clothConfigVersion"]}")
-        configuration("me.zeroeightsix:fiber:${properties["fiberVersion"]}")
-    }
-
-    // Canvas Renderer
-//    "modImplementation"("grondag:canvas:0.7.+")
-
-    // Optifabric
-    "modImplementation"("com.github.modmuss50:OptiFabric:df03dc2c22")
-    "implementation"("org.zeroturnaround:zt-zip:1.13")
+    "minecraft"("net.minecraftforge:forge:${properties["mcVersion"]}-${properties["forgeVersion"]}")
+    "implementation"("thedarkcolour:kotlinforforge:1.7.0")
+    "api"(fg.deobf("curse.maven:clothconfig-348521:3311352"))
 }
 
+configurations["annotationProcessor"].extendsFrom(configurations["implementation"])
 sourceSets {
     get("main").ext["refMap"] = "betterfoliage.refmap.json"
+    get("main").java.srcDir("src/main/javacc/")
+}
+
+minecraft {
+    mappings(properties["mappingsChannel"] as String, properties["mappingsVersion"] as String)
+    accessTransformer(file("src/main/resources/META-INF/accesstransformer.cfg"))
+
+    runs.create("client") {
+        workingDirectory(file("run"))
+        properties["forge.logging.markers"] = "CORE"
+        properties["forge.logging.console.level"] = "debug"
+        mods.create("betterfoliage") {
+            source(sourceSets["main"])
+        }
+    }
+}
+
+javacc {
+    configs {
+        create("blockconfig") {
+            staticParam = "false"
+            inputFile = file("src/main/javacc/BlockConfig.jj")
+            outputDir = file("src/main/javacc/")
+            packageName = "mods.betterfoliage.config.match.parser"
+        }
+    }
 }
 
 java {
@@ -60,10 +61,13 @@ kotlin {
     }
 }
 
-tasks.getByName<ProcessResources>("processResources") {
-    filesMatching("fabric.mod.json") { expand(mutableMapOf("version" to semVer)) }
-}
-
-tasks.getByName<RemapJarTask>("remapJar") {
-    archiveName = "$jarName.jar"
+tasks.getByName<Jar>("jar") {
+    archiveName = "BetterFoliage-${project.version}-Forge-${properties["mcVersion"]}.jar"
+    manifest {
+        from(file("src/main/resources/META-INF/MANIFEST.MF"))
+        attributes["Implementation-Version"] = project.version
+    }
+    exclude("net")
+    filesMatching("META-INF/mods.toml") { expand(project.properties) }
+    filesMatching("mcmod.info") { expand(project.properties) }
 }

gradle.properties

@@ -2,20 +2,13 @@ org.gradle.jvmargs=-Xmx2G
 org.gradle.daemon=false
 
 group = com.github.octarine-noise
-name = betterfoliage
 jarName = BetterFoliage-Forge
 
-version = 2.5.0
+version = 2.7.0
 
-mcVersion = 1.14.4
-yarnMappings=1.14.4+build.15
-loaderVersion=0.7.3+build.176
-fabricVersion=0.4.2+build.246-1.14
-loomVersion=0.2.6-SNAPSHOT
+mcVersion = 1.16.5
+forgeVersion = 36.1.17
+mappingsChannel = official
+mappingsVersion = 1.16.5
 
-kotlinVersion=1.3.60
-fabricKotlinVersion=1.3.60+build.1
-
-clothConfigVersion=1.8
-modMenuVersion=1.7.6+build.115
-fiberVersion=0.8.0-2
+#kottleVersion = 1.4.0

gradle/wrapper/gradle-wrapper.properties

@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-5.6-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-6.8.1-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists

gradlew

@@ -82,6 +82,7 @@ esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -129,6 +130,7 @@ fi
 if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
     JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath

gradlew.bat

@@ -29,6 +29,9 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
@@ -37,7 +40,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -51,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -61,28 +64,14 @@ echo location of your Java installation.
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
+
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell

settings.gradle.kts

@@ -1,8 +1,13 @@
 pluginManagement {
     repositories {
-        jcenter()
-        maven("https://maven.fabricmc.net/")
+        maven("https://files.minecraftforge.net/maven")
+        maven("https://repo.spongepowered.org/maven")
         gradlePluginPortal()
     }
+    resolutionStrategy {
+        eachPlugin {
+            if (requested.id.let { it.namespace == "net.minecraftforge" && it.name == "gradle"} ) useModule("net.minecraftforge.gradle:ForgeGradle:${requested.version}")
+            if (requested.id.let { it.namespace == "org.spongepowered" && it.name == "mixin"} ) useModule("org.spongepowered:mixingradle:${requested.version}")
+        }
+    }
 }
-rootProject.name = "betterfoliage"

src/main/java/mods/betterfoliage/MixinConnector.java

@@ -0,0 +1,18 @@
+package mods.betterfoliage;
+
+import org.spongepowered.asm.mixin.Mixins;
+import org.spongepowered.asm.mixin.connect.IMixinConnector;
+
+public class MixinConnector implements IMixinConnector {
+    @Override
+    public void connect() {
+        Mixins.addConfiguration("betterfoliage.common.mixins.json");
+
+        try {
+            Class.forName("optifine.OptiFineTransformationService");
+            Mixins.addConfiguration("betterfoliage.optifine.mixins.json");
+        } catch (ClassNotFoundException e) {
+            Mixins.addConfiguration("betterfoliage.vanilla.mixins.json");
+        }
+    }
+}

src/main/java/mods/betterfoliage/mixin/MixinBlock.java

@@ -3,42 +3,31 @@ package mods.betterfoliage.mixin;
 import mods.betterfoliage.Hooks;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
+import net.minecraft.util.Direction;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.math.Direction;
-import net.minecraft.util.shape.VoxelShape;
-import net.minecraft.world.BlockView;
-import net.minecraft.world.World;
+import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraft.world.IBlockReader;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
 import org.spongepowered.asm.mixin.injection.Redirect;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-
-import java.util.Random;
-
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
+/**
+ * Mixin overriding the {@link VoxelShape} used for the neighbor block in {@link Block}.shouldSideBeRendered().
+ *
+ * This way log blocks can be made to not block rendering, without altering any {@link Block} or
+ * {@link BlockState} properties with potential gameplay ramifications.
+ */
 @Mixin(Block.class)
 public class MixinBlock {
-    private static final String shouldSideBeRendered = "shouldDrawSide(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/Direction;)Z";
-    private static final String getVoxelShape = "Lnet/minecraft/block/BlockState;getCullShape(Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/math/Direction;)Lnet/minecraft/util/shape/VoxelShape;";
-    private static final String randomDisplayTick = "randomDisplayTick(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Ljava/util/Random;)V";
+    private static final String shouldSideBeRendered = "Lnet/minecraft/block/Block;shouldRenderFace(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/Direction;)Z";
+    private static final String getVoxelShape = "Lnet/minecraft/block/BlockState;func_215702_a(Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/Direction;)Lnet/minecraft/util/math/shapes/VoxelShape;";
+    private static final String getFaceOcclusionShape = "Lnet/minecraft/block/BlockState;getFaceOcclusionShape(Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/Direction;)Lnet/minecraft/util/math/shapes/VoxelShape;";
+    private static final String isOpaqueCube = "Lnet/minecraft/block/Block;isOpaqueCube(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;)Z";
 
-    /**
-     * Override the {@link VoxelShape} used for the neighbor block in {@link Block}.shouldSideBeRendered().
-     *
-     * This way log blocks can be made to not block rendering, without altering any {@link Block} or
-     * {@link BlockState} properties with potential gameplay ramifications.
-     */
-    @Redirect(method = shouldSideBeRendered, at = @At(value = "INVOKE", target = getVoxelShape, ordinal = 1))
-    private static VoxelShape getVoxelShapeOverride(BlockState state, BlockView reader, BlockPos pos, Direction dir) {
+    @Redirect(method = shouldSideBeRendered, at = @At(value = "INVOKE", target = getFaceOcclusionShape, ordinal = 1))
+    private static VoxelShape getVoxelShapeOverride(BlockState state, IBlockReader reader, BlockPos pos, Direction dir) {
         return Hooks.getVoxelShapeOverride(state, reader, pos, dir);
     }
-
-    /**
-     * Inject a callback to call for every random display tick. Used for adding custom particle effects to blocks.
-     */
-    @Inject(method = randomDisplayTick, at = @At("HEAD"))
-    void onRandomDisplayTick(BlockState state, World world, BlockPos pos, Random rnd, CallbackInfo ci) {
-//        Hooks.onRandomDisplayTick(state.getBlock(), state, world, pos, rnd);
-    }
 }

src/main/java/mods/betterfoliage/mixin/MixinBlockModelRenderer.java

@@ -0,0 +1,41 @@
+package mods.betterfoliage.mixin;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import com.mojang.blaze3d.vertex.IVertexBuilder;
+import mods.betterfoliage.model.SpecialRenderModel;
+import mods.betterfoliage.render.pipeline.RenderCtxVanilla;
+import net.minecraft.block.BlockState;
+import net.minecraft.client.renderer.BlockModelRenderer;
+import net.minecraft.client.renderer.model.IBakedModel;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IBlockDisplayReader;
+import net.minecraftforge.client.model.data.IModelData;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.util.Random;
+
+@Mixin(BlockModelRenderer.class)
+public class MixinBlockModelRenderer {
+
+    private static final String renderModel = "Lnet/minecraft/client/renderer/BlockModelRenderer;renderModel(Lnet/minecraft/world/IBlockDisplayReader;Lnet/minecraft/client/renderer/model/IBakedModel;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/BlockPos;Lcom/mojang/blaze3d/matrix/MatrixStack;Lcom/mojang/blaze3d/vertex/IVertexBuilder;ZLjava/util/Random;JILnet/minecraftforge/client/model/data/IModelData;)Z";
+    private static final String renderModelFlat = "Lnet/minecraft/client/renderer/BlockModelRenderer;renderModelFlat(Lnet/minecraft/world/IBlockDisplayReader;Lnet/minecraft/client/renderer/model/IBakedModel;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/BlockPos;Lcom/mojang/blaze3d/matrix/MatrixStack;Lcom/mojang/blaze3d/vertex/IVertexBuilder;ZLjava/util/Random;JILnet/minecraftforge/client/model/data/IModelData;)Z";
+    private static final String renderModelSmooth = "Lnet/minecraft/client/renderer/BlockModelRenderer;renderModelSmooth(Lnet/minecraft/world/IBlockDisplayReader;Lnet/minecraft/client/renderer/model/IBakedModel;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/BlockPos;Lcom/mojang/blaze3d/matrix/MatrixStack;Lcom/mojang/blaze3d/vertex/IVertexBuilder;ZLjava/util/Random;JILnet/minecraftforge/client/model/data/IModelData;)Z";
+
+    @Redirect(method = renderModel, at = @At(value = "INVOKE", target = renderModelSmooth), remap = false)
+    public boolean onRenderModelSmooth(BlockModelRenderer renderer, IBlockDisplayReader world, IBakedModel model, BlockState state, BlockPos pos, MatrixStack matrixStack, IVertexBuilder buffer, boolean checkSides, Random random, long rand, int combinedOverlay, IModelData modelData) {
+        if (model instanceof SpecialRenderModel)
+            return RenderCtxVanilla.render(renderer, world, (SpecialRenderModel) model, state, pos, matrixStack, buffer, checkSides, random, rand, combinedOverlay, modelData, true);
+        else
+            return renderer.renderModelSmooth(world, model, state, pos, matrixStack, buffer, checkSides, random, rand, combinedOverlay, modelData);
+    }
+
+    @Redirect(method = renderModel, at = @At(value = "INVOKE", target = renderModelFlat), remap = false)
+    public boolean onRenderModelFlat(BlockModelRenderer renderer, IBlockDisplayReader world, IBakedModel model, BlockState state, BlockPos pos, MatrixStack matrixStack, IVertexBuilder buffer, boolean checkSides, Random random, long rand, int combinedOverlay, IModelData modelData) {
+        if (model instanceof SpecialRenderModel)
+            return RenderCtxVanilla.render(renderer, world, (SpecialRenderModel) model, state, pos, matrixStack, buffer, checkSides, random, rand, combinedOverlay, modelData, false);
+        else
+            return renderer.renderModelFlat(world, model, state, pos, matrixStack, buffer, checkSides, random, rand, combinedOverlay, modelData);
+    }
+}

src/main/java/mods/betterfoliage/mixin/MixinBlockModels.java

@@ -1,17 +0,0 @@
-package mods.betterfoliage.mixin;
-
-import mods.betterfoliage.BlockModelsReloadCallback;
-import net.minecraft.client.render.block.BlockModels;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-
-@Mixin(BlockModels.class)
-public class MixinBlockModels {
-
-    @Inject(method = "reload()V", at = @At("RETURN"))
-    void onReload(CallbackInfo ci) {
-        BlockModelsReloadCallback.EVENT.invoker().reloadBlockModels((BlockModels) (Object) this);
-    }
-}

src/main/java/mods/betterfoliage/mixin/MixinBlockState.java

@@ -1,12 +1,15 @@
 package mods.betterfoliage.mixin;
 
 import mods.betterfoliage.Hooks;
+import net.minecraft.block.AbstractBlock;
 import net.minecraft.block.Block;
 import net.minecraft.block.BlockState;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.world.BlockView;
+import net.minecraft.world.IBlockReader;
+import org.spongepowered.asm.mixin.Debug;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Coerce;
 import org.spongepowered.asm.mixin.injection.Redirect;
 
 /**
@@ -14,14 +17,15 @@ import org.spongepowered.asm.mixin.injection.Redirect;
  *
  * Needed to avoid excessive darkening of Round Logs at the corners, now that they are not full blocks.
  */
-@Mixin(BlockState.class)
-@SuppressWarnings({"UnnecessaryQualifiedMemberReference", "deprecation"})
+@Mixin(AbstractBlock.AbstractBlockState.class)
+@SuppressWarnings({"deprecation"})
 public class MixinBlockState {
-    private static final String callFrom = "Lnet/minecraft/block/BlockState;getAmbientOcclusionLightLevel(Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;)F";
-    private static final String callTo = "Lnet/minecraft/block/Block;getAmbientOcclusionLightLevel(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;)F";
+    private static final String callFrom = "Lnet/minecraft/block/AbstractBlock$AbstractBlockState;getShadeBrightness(Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;)F";
+    // why is the INVOKEVIRTUAL target class Block in the bytecode, not AbstractBlock?
+    private static final String callTo = "Lnet/minecraft/block/Block;getShadeBrightness(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;)F";
 
     @Redirect(method = callFrom, at = @At(value = "INVOKE", target = callTo))
-    float getAmbientOcclusionValue(Block block, BlockState state, BlockView reader, BlockPos pos) {
-        return Hooks.getAmbientOcclusionLightValueOverride(block.getAmbientOcclusionLightLevel(state, reader, pos), state);
+    float getAmbientOcclusionValue(Block block, BlockState state, IBlockReader reader, BlockPos pos) {
+        return Hooks.getAmbientOcclusionLightValueOverride(block.getShadeBrightness(state, reader, pos), state);
     }
 }

src/main/java/mods/betterfoliage/mixin/MixinClientChunkManager.java

@@ -1,23 +0,0 @@
-package mods.betterfoliage.mixin;
-
-import mods.betterfoliage.ClientChunkLoadCallback;
-import net.minecraft.client.world.ClientChunkManager;
-import net.minecraft.nbt.CompoundTag;
-import net.minecraft.util.PacketByteBuf;
-import net.minecraft.world.World;
-import net.minecraft.world.chunk.WorldChunk;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
-
-@Mixin(ClientChunkManager.class)
-public class MixinClientChunkManager {
-
-    private static final String onLoadChunkFromPacket = "loadChunkFromPacket(Lnet/minecraft/world/World;IILnet/minecraft/util/PacketByteBuf;Lnet/minecraft/nbt/CompoundTag;IZ)Lnet/minecraft/world/chunk/WorldChunk;";
-
-    @Inject(method = onLoadChunkFromPacket, at = @At(value = "RETURN", ordinal = 2))
-    void onLoadChunkFromPacket(World world, int chunkX, int chunkZ, PacketByteBuf data, CompoundTag nbt, int updatedSectionsBits, boolean clearOld, CallbackInfoReturnable<WorldChunk> ci) {
-        ClientChunkLoadCallback.EVENT.invoker().loadChunk(ci.getReturnValue());
-    }
-}

src/main/java/mods/betterfoliage/mixin/MixinClientChunkManagerChunkMap.java

@@ -1,19 +0,0 @@
-package mods.betterfoliage.mixin;
-
-import mods.betterfoliage.ClientChunkLoadCallback;
-import net.minecraft.world.chunk.WorldChunk;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
-
-@Mixin(targets = {"net.minecraft.client.world.ClientChunkManager$ClientChunkMap"})
-public class MixinClientChunkManagerChunkMap {
-
-    private static final String onSetAndCompare = "method_20183(ILnet/minecraft/world/chunk/WorldChunk;Lnet/minecraft/world/chunk/WorldChunk;)Lnet/minecraft/world/chunk/WorldChunk;";
-
-    @Inject(method = onSetAndCompare, at = @At("HEAD"))
-    void onSetAndCompare(int i, WorldChunk oldChunk, WorldChunk newChunk, CallbackInfoReturnable<WorldChunk> ci) {
-        ClientChunkLoadCallback.EVENT.invoker().unloadChunk(oldChunk);
-    }
-}

src/main/java/mods/betterfoliage/mixin/MixinClientWorld.java

@@ -1,18 +1,15 @@
 package mods.betterfoliage.mixin;
 
-import mods.betterfoliage.ClientWorldLoadCallback;
 import mods.betterfoliage.Hooks;
 import net.minecraft.block.BlockState;
-import net.minecraft.client.network.ClientPlayNetworkHandler;
-import net.minecraft.client.render.WorldRenderer;
+import net.minecraft.client.renderer.WorldRenderer;
 import net.minecraft.client.world.ClientWorld;
 import net.minecraft.util.math.BlockPos;
-import net.minecraft.util.profiler.Profiler;
-import net.minecraft.world.dimension.DimensionType;
-import net.minecraft.world.level.LevelInfo;
+import net.minecraft.world.IBlockReader;
 import org.spongepowered.asm.mixin.Mixin;
 import org.spongepowered.asm.mixin.injection.At;
 import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 
 import java.util.Random;
@@ -20,31 +17,27 @@ import java.util.Random;
 @Mixin(ClientWorld.class)
 public class MixinClientWorld {
 
-    private static final String ctor = "<init>(Lnet/minecraft/client/network/ClientPlayNetworkHandler;Lnet/minecraft/world/level/LevelInfo;Lnet/minecraft/world/dimension/DimensionType;ILnet/minecraft/util/profiler/Profiler;Lnet/minecraft/client/render/WorldRenderer;)V";
-    private static final String scheduleBlockRender = "scheduleBlockRender(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/block/BlockState;)V";
-    private static final String rendererNotify = "Lnet/minecraft/client/render/WorldRenderer;method_21596(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/block/BlockState;)V";
-    private static final String worldDisplayTick = "randomBlockDisplayTick(IIIILjava/util/Random;ZLnet/minecraft/util/math/BlockPos$Mutable;)V";
-    private static final String blockDisplayTick = "Lnet/minecraft/block/Block;randomDisplayTick(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Ljava/util/Random;)V";
+    private static final String worldAnimateTick = "Lnet/minecraft/client/world/ClientWorld;doAnimateTick(IIIILjava/util/Random;ZLnet/minecraft/util/math/BlockPos$Mutable;)V";
+    private static final String blockAnimateTick = "Lnet/minecraft/block/Block;animateTick(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/World;Lnet/minecraft/util/math/BlockPos;Ljava/util/Random;)V";
+
+    private static final String worldNotify = "Lnet/minecraft/client/world/ClientWorld;sendBlockUpdated(Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/block/BlockState;I)V";
+    private static final String rendererNotify = "Lnet/minecraft/client/renderer/WorldRenderer;blockChanged(Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/BlockState;Lnet/minecraft/block/BlockState;I)V";
+
+    /**
+     * Inject a callback to call for every random display tick. Used for adding custom particle effects to blocks.
+     */
+    @Inject(method = worldAnimateTick, at = @At(value = "INVOKE", target = blockAnimateTick))
+    void onAnimateTick(int x, int y, int z, int range, Random random, boolean doBarrier, BlockPos.Mutable pos, CallbackInfo ci) {
+        Hooks.onRandomDisplayTick((ClientWorld) (Object) this, pos, random);
+    }
 
     /**
      * Inject callback to get notified of client-side blockstate changes.
      * Used to invalidate caches in the {@link mods.betterfoliage.chunk.ChunkOverlayManager}
      */
-    @Inject(method = scheduleBlockRender, at = @At(value = "HEAD"))
-    void onClientBlockChanged(BlockPos pos, BlockState oldState, BlockState newState, CallbackInfo ci) {
-        Hooks.onClientBlockChanged((ClientWorld) (Object) this, pos, oldState, newState);
-    }
-
-    @Inject(method = ctor, at = @At("RETURN"))
-    void onClientWorldCreated(ClientPlayNetworkHandler netHandler, LevelInfo levelInfo, DimensionType dimensionType, int i, Profiler profiler, WorldRenderer worldRenderer, CallbackInfo ci) {
-        ClientWorldLoadCallback.EVENT.invoker().loadWorld((ClientWorld) (Object) this);
-    }
-
-    /**
-     * Inject a callback to call for every random display tick. Used for adding custom particle effects to blocks.
-     */
-    @Inject(method = worldDisplayTick, at = @At(value = "INVOKE", target = blockDisplayTick))
-    void onRandomDisplayTick(int xCenter, int yCenter, int zCenter, int radius, Random random, boolean spawnBarrierParticles, BlockPos.Mutable mutable, CallbackInfo ci) {
-        Hooks.onRandomDisplayTick((ClientWorld) (Object) this, mutable);
+    @Redirect(method = worldNotify, at = @At(value = "INVOKE", target = rendererNotify))
+    void onClientBlockChanged(WorldRenderer renderer, IBlockReader world, BlockPos pos, BlockState oldState, BlockState newState, int flags) {
+        Hooks.onClientBlockChanged((ClientWorld) world, pos, oldState, newState, flags);
+        renderer.blockChanged(world, pos, oldState, newState, flags);
     }
 }

src/main/java/mods/betterfoliage/mixin/MixinForgeBlockModelRenderer.java

@@ -0,0 +1,44 @@
+package mods.betterfoliage.mixin;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import mods.betterfoliage.model.SpecialRenderModel;
+import mods.betterfoliage.render.pipeline.RenderCtxForge;
+import net.minecraft.block.BlockState;
+import net.minecraft.client.renderer.model.IBakedModel;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IBlockDisplayReader;
+import net.minecraftforge.client.model.data.IModelData;
+import net.minecraftforge.client.model.pipeline.ForgeBlockModelRenderer;
+import net.minecraftforge.client.model.pipeline.VertexLighterFlat;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+import java.util.Random;
+
+@Mixin(ForgeBlockModelRenderer.class)
+public class MixinForgeBlockModelRenderer {
+
+    private static final String renderModelFlat = "Lnet/minecraftforge/client/model/pipeline/ForgeBlockModelRenderer;renderModelFlat(Lnet/minecraft/world/IBlockDisplayReader;Lnet/minecraft/client/renderer/model/IBakedModel;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/BlockPos;Lcom/mojang/blaze3d/matrix/MatrixStack;Lcom/mojang/blaze3d/vertex/IVertexBuilder;ZLjava/util/Random;JILnet/minecraftforge/client/model/data/IModelData;)Z";
+    private static final String renderModelSmooth = "Lnet/minecraftforge/client/model/pipeline/ForgeBlockModelRenderer;renderModelSmooth(Lnet/minecraft/world/IBlockDisplayReader;Lnet/minecraft/client/renderer/model/IBakedModel;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/BlockPos;Lcom/mojang/blaze3d/matrix/MatrixStack;Lcom/mojang/blaze3d/vertex/IVertexBuilder;ZLjava/util/Random;JILnet/minecraftforge/client/model/data/IModelData;)Z";
+    private static final String render = "Lnet/minecraftforge/client/model/pipeline/ForgeBlockModelRenderer;render(Lnet/minecraftforge/client/model/pipeline/VertexLighterFlat;Lnet/minecraft/world/IBlockDisplayReader;Lnet/minecraft/client/renderer/model/IBakedModel;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/BlockPos;Lcom/mojang/blaze3d/matrix/MatrixStack;ZLjava/util/Random;JLnet/minecraftforge/client/model/data/IModelData;)Z";
+
+    @Redirect(method = {renderModelFlat, renderModelSmooth}, at = @At(value = "INVOKE", target = render), remap = false)
+    public boolean render(
+            VertexLighterFlat lighter,
+            IBlockDisplayReader world,
+            IBakedModel model,
+            BlockState state,
+            BlockPos pos,
+            MatrixStack matrixStack,
+            boolean checkSides,
+            Random rand,
+            long seed,
+            IModelData modelData
+    ) {
+        if (model instanceof SpecialRenderModel)
+            return RenderCtxForge.render(lighter, world, (SpecialRenderModel) model, state, pos, matrixStack, checkSides, rand, seed, modelData);
+        else
+            return ForgeBlockModelRenderer.render(lighter, world, model, state, pos, matrixStack, checkSides, rand, seed, modelData);
+    }
+}

src/main/java/mods/betterfoliage/mixin/MixinForgeCustomVertexLighting.java

@@ -0,0 +1,65 @@
+package mods.betterfoliage.mixin;
+
+import mods.betterfoliage.render.lighting.ForgeVertexLighter;
+import mods.betterfoliage.render.lighting.ForgeVertexLighterAccess;
+import net.minecraftforge.client.model.pipeline.VertexLighterFlat;
+import org.jetbrains.annotations.NotNull;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Shadow;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+@Mixin(VertexLighterFlat.class)
+abstract public class MixinForgeCustomVertexLighting implements ForgeVertexLighter, ForgeVertexLighterAccess {
+
+    private static final String processQuad = "Lnet/minecraftforge/client/model/pipeline/VertexLighterFlat;processQuad()V";
+    private static final String updateLightmap = "Lnet/minecraftforge/client/model/pipeline/VertexLighterFlat;updateLightmap([F[FFFF)V";
+    private static final String updateColor = "Lnet/minecraftforge/client/model/pipeline/VertexLighterFlat;updateColor([F[FFFFFI)V";
+    private static final String resetBlockInfo = "Lnet/minecraftforge/client/model/pipeline/VertexLighterFlat;resetBlockInfo()V";
+
+    @NotNull
+    public ForgeVertexLighter vertexLighter = this;
+
+    @NotNull
+    public ForgeVertexLighter getVertexLighter() {
+        return vertexLighter;
+    }
+
+    public void setVertexLighter(@NotNull ForgeVertexLighter vertexLighter) {
+        this.vertexLighter = vertexLighter;
+    }
+
+
+    @Shadow
+    protected abstract void updateLightmap(float[] normal, float[] lightmap, float x, float y, float z);
+    @Shadow
+    protected abstract void updateColor(float[] normal, float[] color, float x, float y, float z, float tint, int multiplier);
+
+    @Override
+    public void updateVertexLightmap(@NotNull float[] normal, @NotNull float[] lightmap, float x, float y, float z) {
+        updateLightmap(normal, lightmap, x, y, z);
+    }
+
+    @Override
+    public void updateVertexColor(@NotNull float[] normal, @NotNull float[] color, float x, float y, float z, float tint, int multiplier) {
+        updateColor(normal, color, x, y, z, tint, multiplier);
+    }
+
+
+    @Redirect(method = processQuad, at = @At(value = "INVOKE", target = updateColor), remap = false)
+    void onUpdateColor(VertexLighterFlat self, float[] normal, float[] color, float x, float y, float z, float tint, int multiplier) {
+        vertexLighter.updateVertexColor(normal, color, x, y, z, tint, multiplier);
+    }
+
+    @Redirect(method = processQuad, at = @At(value = "INVOKE", target = updateLightmap), remap = false)
+    void onUpdateLightmap(VertexLighterFlat self, float[] normal, float[] lightmap, float x, float y, float z) {
+        vertexLighter.updateVertexLightmap(normal, lightmap, x, y, z);
+    }
+
+    @Inject(method = resetBlockInfo, at = @At("RETURN"), remap = false)
+    void onReset(CallbackInfo ci) {
+        vertexLighter = this;
+    }
+}

src/main/java/mods/betterfoliage/mixin/MixinModelBakery.java

@@ -0,0 +1,44 @@
+package mods.betterfoliage.mixin;
+
+import mods.betterfoliage.BetterFoliage;
+import mods.betterfoliage.BetterFoliageMod;
+import mods.betterfoliage.resource.discovery.BakeWrapperManager;
+import mods.betterfoliage.resource.discovery.ModelDefinitionsLoadedEvent;
+import net.minecraft.client.renderer.model.*;
+import net.minecraft.client.renderer.texture.TextureAtlasSprite;
+import net.minecraft.profiler.IProfiler;
+import net.minecraft.util.ResourceLocation;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
+
+import java.util.function.Function;
+
+@Mixin(ModelBakery.class)
+abstract public class MixinModelBakery {
+
+    private static final String processLoading = "Lnet/minecraft/client/renderer/model/ModelBakery;processLoading(Lnet/minecraft/profiler/IProfiler;I)V";
+    private static final String stitch = "Lnet/minecraft/client/renderer/texture/AtlasTexture;stitch(Lnet/minecraft/resources/IResourceManager;Ljava/util/stream/Stream;Lnet/minecraft/profiler/IProfiler;I)Lnet/minecraft/client/renderer/texture/AtlasTexture$SheetData;";
+    private static final String profilerSection = "Lnet/minecraft/profiler/IProfiler;popPush(Ljava/lang/String;)V";
+    private static final String getBakedModel = "Lnet/minecraft/client/renderer/model/ModelBakery;getBakedModel(Lnet/minecraft/util/ResourceLocation;Lnet/minecraft/client/renderer/model/IModelTransform;Ljava/util/function/Function;)Lnet/minecraft/client/renderer/model/IBakedModel;";
+    private static final String bakeModel = "Lnet/minecraft/client/renderer/model/IUnbakedModel;bake(Lnet/minecraft/client/renderer/model/ModelBakery;Ljava/util/function/Function;Lnet/minecraft/client/renderer/model/IModelTransform;Lnet/minecraft/util/ResourceLocation;)Lnet/minecraft/client/renderer/model/IBakedModel;";
+
+    @Inject(method = processLoading, at = @At(value = "INVOKE", target = profilerSection, ordinal = 4))
+    void onBeforeTextures(IProfiler profiler, int maxMipmapLevel, CallbackInfo ci) {
+        profiler.popPush("betterfoliage");
+        BetterFoliageMod.INSTANCE.getBus().post(new ModelDefinitionsLoadedEvent(ModelBakery.class.cast(this)));
+    }
+
+    @Redirect(method = getBakedModel, at = @At(value = "INVOKE", target = bakeModel))
+    IBakedModel onBakeModel(
+            IUnbakedModel unbaked,
+            ModelBakery bakery,
+            Function<RenderMaterial, TextureAtlasSprite> spriteGetter,
+            IModelTransform transform,
+            ResourceLocation locationIn
+    ) {
+        return BetterFoliage.INSTANCE.getModelManager().onBake(unbaked, bakery, spriteGetter, transform, locationIn);
+    }
+}

src/main/java/mods/betterfoliage/mixin/MixinModelLoader.java

@@ -1,28 +0,0 @@
-package mods.betterfoliage.mixin;
-
-import mods.betterfoliage.ModelLoadingCallback;
-import net.minecraft.client.render.model.ModelLoader;
-import net.minecraft.client.util.ModelIdentifier;
-import net.minecraft.resource.ResourceManager;
-import org.spongepowered.asm.mixin.Final;
-import org.spongepowered.asm.mixin.Mixin;
-import org.spongepowered.asm.mixin.Shadow;
-import org.spongepowered.asm.mixin.injection.At;
-import org.spongepowered.asm.mixin.injection.Inject;
-import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
-
-import static net.minecraft.client.render.model.ModelLoader.MISSING;
-
-@Mixin(ModelLoader.class)
-public class MixinModelLoader {
-
-    @Shadow @Final private ResourceManager resourceManager;
-
-    @Inject(at = @At("HEAD"), method = "addModel")
-    private void addModelHook(ModelIdentifier id, CallbackInfo info) {
-        // use the same trick fabric-api does to get around the no-mixins-in-constructors policy
-        if (id == MISSING) {
-            ModelLoadingCallback.EVENT.invoker().beginLoadModels((ModelLoader) (Object) this, resourceManager);
-        }
-    }
-}

src/main/java/mods/betterfoliage/mixin/MixinOptifineBlockUtils.java

@@ -0,0 +1,38 @@
+package mods.betterfoliage.mixin;
+
+import mods.betterfoliage.Hooks;
+import net.minecraft.block.BlockState;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.shapes.VoxelShape;
+import net.minecraft.world.IBlockReader;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.Pseudo;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Coerce;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.Redirect;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+
+@Pseudo
+@Mixin(targets = "net.optifine.util.BlockUtils")
+public class MixinOptifineBlockUtils {
+    private static final String shouldSideBeRendered = "shouldSideBeRendered(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/Direction;Lnet/optifine/render/RenderEnv;)Z";
+
+    private static final String shouldSideBeRenderedCached = "shouldSideBeRenderedCached(Lnet/minecraft/block/BlockState;Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/Direction;Lnet/optifine/render/RenderEnv;Lnet/minecraft/block/BlockState;Lnet/minecraft/util/math/BlockPos;)Z";
+    private static final String getFaceOcclusionShape = "Lnet/minecraft/block/BlockState;getFaceOcclusionShape(Lnet/minecraft/world/IBlockReader;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/util/Direction;)Lnet/minecraft/util/math/shapes/VoxelShape;";
+
+    @SuppressWarnings("UnresolvedMixinReference")
+    @Redirect(method = shouldSideBeRenderedCached, at = @At(value = "INVOKE", target = getFaceOcclusionShape, ordinal = 1))
+    private static VoxelShape getVoxelShapeOverride(BlockState state, IBlockReader reader, BlockPos pos, Direction dir) {
+        return Hooks.getVoxelShapeOverride(state, reader, pos, dir);
+    }
+
+    @SuppressWarnings("UnresolvedMixinReference")
+    @Inject(method = shouldSideBeRendered, at = @At(value = "HEAD"), cancellable = true)
+    private static void shouldForceSideRender(BlockState state, IBlockReader reader, BlockPos pos, Direction face, @Coerce Object renderEnv, CallbackInfoReturnable<Boolean> cir) {
+        if (Hooks.shouldForceSideRenderOF(state, reader, pos, face)) {
+            cir.setReturnValue(true);
+        }
+    }
+}

src/main/java/mods/betterfoliage/mixin/MixinOptifineChunkRendererDispatcher.java

@@ -0,0 +1,57 @@
+package mods.betterfoliage.mixin;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import mods.betterfoliage.render.pipeline.RenderCtxBase;
+import net.minecraft.block.BlockState;
+import net.minecraft.client.renderer.BlockRendererDispatcher;
+import net.minecraft.client.renderer.RegionRenderCacheBuilder;
+import net.minecraft.client.renderer.RenderType;
+import net.minecraft.client.renderer.chunk.ChunkRenderDispatcher;
+import net.minecraft.client.renderer.chunk.VisGraph;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.world.IBlockDisplayReader;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Coerce;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+import java.util.Iterator;
+import java.util.Random;
+import java.util.Set;
+
+@Mixin(targets = "net.minecraft.client.renderer.chunk.ChunkRenderDispatcher$ChunkRender$RebuildTask")
+public class MixinOptifineChunkRendererDispatcher {
+
+    private static final String compile = "Lnet/minecraft/client/renderer/chunk/ChunkRenderDispatcher$ChunkRender$RebuildTask;compile(FFFLnet/minecraft/client/renderer/chunk/ChunkRenderDispatcher$CompiledChunk;Lnet/minecraft/client/renderer/RegionRenderCacheBuilder;)Ljava/util/Set;";
+    private static final String getBlockStateMcp = "Lnet/optifine/override/ChunkCacheOF;getBlockState(Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/block/BlockState;";
+    private static final String getBlockStateSrg = "Lnet/optifine/override/ChunkCacheOF;func_180495_p(Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/block/BlockState;";
+
+    @Inject(method = compile, locals = LocalCapture.CAPTURE_FAILHARD, require = 1, at = {
+            @At(value = "INVOKE", target = getBlockStateMcp),
+            @At(value = "INVOKE", target = getBlockStateSrg),
+    })
+    void onStartBlockRender(
+            float xIn, float yIn, float zIn,
+            ChunkRenderDispatcher.CompiledChunk compiledChunkIn, RegionRenderCacheBuilder builderIn,
+            CallbackInfoReturnable<Set> cir,
+            int i, BlockPos blockpos, BlockPos blockpos1, VisGraph visgraph, Set set, MatrixStack matrixstack,
+            @Coerce IBlockDisplayReader chunkrendercache, RenderType[] singleLayer,
+            boolean shaders, boolean shadersMidBlock, Random random,
+            BlockRendererDispatcher blockrendererdispatcher, Iterator var18,
+            @Coerce BlockPos blockpos2
+    ) {
+        RenderCtxBase.reset(chunkrendercache, blockrendererdispatcher, blockpos2, random);
+    }
+
+//    @Inject(method = compile, locals = LocalCapture.PRINT, require = 1, at = {
+//            @At(value = "INVOKE", target = getBlockStateMcp),
+//            @At(value = "INVOKE", target = getBlockStateSrg),
+//    })
+//    void printLocals(
+//            float p_228940_1_, float p_228940_2_, float p_228940_3_,
+//            ChunkRenderDispatcher.CompiledChunk p_228940_4_, RegionRenderCacheBuilder p_228940_5_,
+//            CallbackInfoReturnable<BlockState> ci) {
+//    }
+}

src/main/java/mods/betterfoliage/mixin/MixinVanillaChunkRendererDispatcher.java

@@ -0,0 +1,46 @@
+package mods.betterfoliage.mixin;
+
+import com.mojang.blaze3d.matrix.MatrixStack;
+import mods.betterfoliage.render.pipeline.RenderCtxBase;
+import net.minecraft.client.renderer.BlockRendererDispatcher;
+import net.minecraft.client.renderer.RegionRenderCacheBuilder;
+import net.minecraft.client.renderer.chunk.ChunkRenderCache;
+import net.minecraft.client.renderer.chunk.ChunkRenderDispatcher;
+import net.minecraft.client.renderer.chunk.VisGraph;
+import net.minecraft.util.math.BlockPos;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Inject;
+import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
+import org.spongepowered.asm.mixin.injection.callback.LocalCapture;
+
+import java.util.Iterator;
+import java.util.Random;
+import java.util.Set;
+
+@Mixin(targets = "net.minecraft.client.renderer.chunk.ChunkRenderDispatcher$ChunkRender$RebuildTask")
+public class MixinVanillaChunkRendererDispatcher {
+
+    private static final String compile = "Lnet/minecraft/client/renderer/chunk/ChunkRenderDispatcher$ChunkRender$RebuildTask;compile(FFFLnet/minecraft/client/renderer/chunk/ChunkRenderDispatcher$CompiledChunk;Lnet/minecraft/client/renderer/RegionRenderCacheBuilder;)Ljava/util/Set;";
+    private static final String getBlockState = "Lnet/minecraft/client/renderer/chunk/ChunkRenderCache;getBlockState(Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/block/BlockState;";
+
+    @Inject(method = compile, at = @At(value = "INVOKE", target = getBlockState), locals = LocalCapture.CAPTURE_FAILHARD)
+    void onStartBlockRender(
+            float p_228940_1_, float p_228940_2_, float p_228940_3_,
+            ChunkRenderDispatcher.CompiledChunk p_228940_4_, RegionRenderCacheBuilder p_228940_5_,
+            CallbackInfoReturnable ci,
+            int i, BlockPos blockpos, BlockPos blockpos1, VisGraph visgraph, Set set,
+            ChunkRenderCache chunkrendercache, MatrixStack matrixstack,
+            Random random,
+            BlockRendererDispatcher blockrendererdispatcher, Iterator var15,
+            BlockPos blockpos2) {
+        RenderCtxBase.reset(chunkrendercache, blockrendererdispatcher, blockpos2, random);
+    }
+
+//    @Inject(method = compile, at = @At(value = "INVOKE", target = getBlockState), locals = LocalCapture.PRINT)
+//    void printLocals(
+//            float p_228940_1_, float p_228940_2_, float p_228940_3_,
+//            ChunkRenderDispatcher.CompiledChunk p_228940_4_, RegionRenderCacheBuilder p_228940_5_,
+//            CallbackInfoReturnable ci) {
+//    }
+}

src/main/javacc/BlockConfig.jj

@@ -0,0 +1,101 @@
+PARSER_BEGIN(BlockConfigParser)
+package mods.betterfoliage.config.match.parser;
+
+import java.util.List;
+import java.util.LinkedList;
+import mods.betterfoliage.config.match.*;
+
+public class BlockConfigParser {
+    public String configFile;
+
+    ConfigSource getSource(Token t) {
+        return new ConfigSource(configFile, t.beginLine, t.beginColumn);
+    }
+}
+
+PARSER_END(BlockConfigParser)
+
+// Whitespace definition
+SKIP : { " " | "\n" | "\t" | "\r" }
+
+// Single-line comment
+SPECIAL_TOKEN : { <lineComment: "//" (~["\n","\r"])* ("\n"|"\r"|"\r\n")> }
+
+// Lexical state for string literal in quotes
+SPECIAL_TOKEN : { < quoteStart : "\"" > : withinQuotes }
+<withinQuotes> SPECIAL_TOKEN : { < quoteEnd : "\"" > : DEFAULT }
+<withinQuotes> TOKEN : { < stringLiteral : (["a"-"z"] | ["0"-"9"] | "/" | "." | "_" | "-" | ":" )* > }
+
+// Symbol tokens
+TOKEN : {
+    < parenStart : "(" > |
+    < parenEnd : ")" > |
+    < dot : "." > |
+    < comma : "," > |
+    < exclamation : "!" >
+}
+
+List<Node.MatchAll> matchFile() : {
+    Token t; Node n; List<Node.MatchAll> rules = new LinkedList<Node.MatchAll>();
+} {
+    (
+        t = "match"
+        { List<Node> nodes = new LinkedList<Node>(); }
+        (n = match() { nodes.add(n); })*
+        "end"
+        { rules.add(new Node.MatchAll(getSource(t), nodes)); }
+    )*
+    { return rules; }
+}
+
+Node match() : {
+    Token t; Token t2; MatchMethod mm; List<Node.Value> values; Node.Value v; Node n;
+} {
+    <exclamation> n = match() { return new Node.Negate(n); }
+    |
+    t = "block.class." mm = matchMethod() <parenStart> values = matchValueList() <parenEnd>
+    { return new Node.MatchValueList(Node.MatchSource.BLOCK_CLASS, mm, getSource(t), values); }
+    |
+    t = "block.name." mm = matchMethod() <parenStart> values = matchValueList() <parenEnd>
+    { return new Node.MatchValueList(Node.MatchSource.BLOCK_NAME, mm, getSource(t), values); }
+    |
+    t = "model." mm = matchMethod() <parenStart> values = matchValueList() <parenEnd>
+    { return new Node.MatchValueList(Node.MatchSource.MODEL_LOCATION, mm, getSource(t), values); }
+    |
+    t = "isParam" <parenStart> t2 = <stringLiteral> <comma> values = matchValueList() <parenEnd>
+    { return new Node.MatchParam(t2.image, values, getSource(t)); }
+    |
+    t = "setParam" <parenStart> t2 = <stringLiteral> <comma> v = matchValue() <parenEnd>
+    { return new Node.SetParam(t2.image, v, getSource(t)); }
+}
+
+MatchMethod matchMethod() : {} {
+    "matches" { return MatchMethod.EXACT_MATCH; } |
+    "extends" { return MatchMethod.EXTENDS; } |
+    "contains" { return MatchMethod.CONTAINS; }
+}
+
+List<Node.Value> matchValueList() : {
+    List<Node.Value> values = new LinkedList<Node.Value>();
+    Node.Value v;
+} {
+    v = matchValue() { values.add(v); }
+    (<comma> v = matchValue() { values.add(v); } )*
+    { return values; }
+}
+
+Node.Value matchValue() : {
+    Token t;
+} {
+    t = <stringLiteral>
+    { return new Node.Value.Literal(getSource(t), t.image); }
+    |
+    "classOf" <parenStart> t = <stringLiteral> <parenEnd>
+    { return new Node.Value.ClassOf(getSource(t), t.image); }
+    |
+    "model.texture" <parenStart> t = <stringLiteral> <parenEnd>
+    { return new Node.Value.Texture(getSource(t), t.image); }
+    |
+    "model.tint" <parenStart> t = <stringLiteral> <parenEnd>
+    { return new Node.Value.Tint(getSource(t), t.image); }
+}

src/main/kotlin/mods/betterfoliage/BetterFoliage.kt

@@ -1,88 +1,107 @@
 package mods.betterfoliage
 
-import me.zeroeightsix.fiber.JanksonSettings
 import mods.betterfoliage.chunk.ChunkOverlayManager
 import mods.betterfoliage.config.BlockConfig
-import mods.betterfoliage.config.MainConfig
-import mods.betterfoliage.render.block.vanilla.*
+import mods.betterfoliage.integration.OptifineCustomColors
+import mods.betterfoliage.integration.ShadersModIntegration
+import mods.betterfoliage.render.block.vanilla.RoundLogOverlayLayer
+import mods.betterfoliage.render.block.vanilla.StandardCactusDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardCactusModel
+import mods.betterfoliage.render.block.vanilla.StandardDirtDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardDirtModel
+import mods.betterfoliage.render.block.vanilla.StandardGrassDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardGrassModel
+import mods.betterfoliage.render.block.vanilla.StandardLeafDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardLeafModel
+import mods.betterfoliage.render.block.vanilla.StandardLilypadDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardLilypadModel
+import mods.betterfoliage.render.block.vanilla.StandardMyceliumDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardMyceliumModel
+import mods.betterfoliage.render.block.vanilla.StandardNetherrackDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardNetherrackModel
+import mods.betterfoliage.render.block.vanilla.StandardRoundLogDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardRoundLogModel
+import mods.betterfoliage.render.block.vanilla.StandardSandDiscovery
+import mods.betterfoliage.render.block.vanilla.StandardSandModel
+import mods.betterfoliage.render.lighting.AoSideHelper
 import mods.betterfoliage.render.particle.LeafParticleRegistry
+import mods.betterfoliage.render.particle.LeafWindTracker
 import mods.betterfoliage.render.particle.RisingSoulParticle
-import mods.betterfoliage.resource.discovery.BakedModelReplacer
-import mods.betterfoliage.resource.generated.GeneratedBlockTexturePack
-import net.fabricmc.api.ClientModInitializer
-import net.fabricmc.fabric.api.resource.ResourceManagerHelper
-import net.fabricmc.loader.api.FabricLoader
-import net.minecraft.client.MinecraftClient
-import net.minecraft.resource.ResourceType
-import net.minecraft.util.Identifier
-import org.apache.logging.log4j.Level
-import org.apache.logging.log4j.LogManager
-import org.apache.logging.log4j.simple.SimpleLogger
-import org.apache.logging.log4j.util.PropertiesUtil
-import java.io.File
-import java.io.PrintStream
-import java.util.*
+import mods.betterfoliage.resource.discovery.BakeWrapperManager
+import mods.betterfoliage.resource.discovery.BlockTypeCache
+import mods.betterfoliage.resource.discovery.RuleBasedDiscovery
+import mods.betterfoliage.resource.generated.GeneratedTexturePack
+import mods.betterfoliage.util.resourceManager
+import net.minecraft.block.BlockState
 
+/**
+ * Object responsible for initializing (and holding a reference to) all the infrastructure of the mod
+ * except for the call hooks.
+ */
+object BetterFoliage {
+    /** Resource pack holding generated assets */
+    val generatedPack = GeneratedTexturePack("bf_gen", "Better Foliage generated assets")
 
-object BetterFoliage : ClientModInitializer {
-    const val MOD_ID = "betterfoliage"
-
-    var logger = LogManager.getLogger()
-    var logDetail = SimpleLogger(
-        "BetterFoliage",
-        Level.DEBUG,
-        false, false, true, false,
-        "yyyy-MM-dd HH:mm:ss",
-        null,
-        PropertiesUtil(Properties()),
-        PrintStream(File(FabricLoader.getInstance().gameDirectory, "logs/betterfoliage.log").apply {
-            parentFile.mkdirs()
-            if (!exists()) createNewFile()
-        })
-    )
-
-    val configFile get() = File(FabricLoader.getInstance().configDirectory, "BetterFoliage.json")
-
-    val config = MainConfig().apply {
-        if (configFile.exists()) JanksonSettings().deserialize(fiberNode, configFile.inputStream())
-        else JanksonSettings().serialize(fiberNode, configFile.outputStream(), false)
-    }
+    /** List of recognized [BlockState]s */
+    var blockTypes = BlockTypeCache()
 
     val blockConfig = BlockConfig()
-    val generatedPack = GeneratedBlockTexturePack(Identifier(MOD_ID, "generated"), "betterfoliage-generated", "Better Foliage", "Generated leaf textures", logDetail)
-    val modelReplacer = BakedModelReplacer()
 
-    override fun onInitializeClient() {
-        // Register generated resource pack
-        ResourceManagerHelper.get(ResourceType.CLIENT_RESOURCES).registerReloadListener(generatedPack)
-        MinecraftClient.getInstance().resourcePackContainerManager.addCreator(generatedPack.finder)
-
-        // Add standard block support
-        modelReplacer.discoverers.add(StandardLeafDiscovery)
-        modelReplacer.discoverers.add(StandardGrassDiscovery)
-        modelReplacer.discoverers.add(StandardLogDiscovery)
-        modelReplacer.discoverers.add(StandardCactusDiscovery)
-        modelReplacer.discoverers.add(LilyPadDiscovery)
-        modelReplacer.discoverers.add(DirtDiscovery)
-        modelReplacer.discoverers.add(SandDiscovery)
-        modelReplacer.discoverers.add(MyceliumDiscovery)
-        modelReplacer.discoverers.add(NetherrackDiscovery)
-
-        // Init overlay layers
-        ChunkOverlayManager.layers.add(RoundLogOverlayLayer)
-
-        // Init singletons
-        LeafParticleRegistry
-        NormalLeavesModel.Companion
-        GrassBlockModel.Companion
-        RoundLogModel.Companion
-        CactusModel.Companion
-        LilypadModel.Companion
-        DirtModel.Companion
-        SandModel.Companion
-        MyceliumModel.Companion
-        NetherrackModel.Companion
-        RisingSoulParticle.Companion
+    val standardModelSupport = RuleBasedDiscovery().apply {
+        discoverers["cactus"] = StandardCactusDiscovery
+        discoverers["dirt"] = StandardDirtDiscovery
+        discoverers["grass"] = StandardGrassDiscovery
+        discoverers["leaf"] = StandardLeafDiscovery
+        discoverers["lilypad"] = StandardLilypadDiscovery
+        discoverers["mycelium"] = StandardMyceliumDiscovery
+        discoverers["netherrack"] = StandardNetherrackDiscovery
+        discoverers["round-log"] = StandardRoundLogDiscovery
+        discoverers["sand"] = StandardSandDiscovery
+    }
+    val modelManager = BakeWrapperManager().apply {
+        discoverers.add(standardModelSupport)
     }
 
-}
+    fun init() {
+        // discoverers
+        BetterFoliageMod.bus.register(modelManager)
+        BetterFoliageMod.bus.register(LeafParticleRegistry)
+        resourceManager.registerReloadListener(LeafParticleRegistry)
+
+        ChunkOverlayManager.layers.add(RoundLogOverlayLayer)
+
+        listOf(
+            StandardLeafDiscovery,
+            StandardSandDiscovery,
+            StandardRoundLogDiscovery,
+        ).forEach {
+        }
+
+        // init singletons
+        val singletons = listOf(
+            AoSideHelper,
+            ChunkOverlayManager,
+            LeafWindTracker
+        )
+
+        val modelSingletons = listOf(
+            StandardLeafModel.Companion,
+            StandardGrassModel.Companion,
+            StandardDirtModel.Companion,
+            StandardMyceliumModel.Companion,
+            StandardSandModel.Companion,
+            StandardLilypadModel.Companion,
+            StandardCactusModel.Companion,
+            StandardNetherrackModel.Companion,
+            StandardRoundLogModel.Companion,
+            RisingSoulParticle.Companion
+        )
+
+        // init mod integrations
+        val integrations = listOf(
+            ShadersModIntegration,
+            OptifineCustomColors
+        )
+    }
+}
+

src/main/kotlin/mods/betterfoliage/BetterFoliageMod.kt

@@ -0,0 +1,76 @@
+package mods.betterfoliage
+
+import mods.betterfoliage.config.MainConfig
+import mods.betterfoliage.config.clothGuiRoot
+import mods.betterfoliage.config.forgeSpecRoot
+import mods.betterfoliage.util.tryDefault
+import net.minecraft.client.Minecraft
+import net.minecraft.client.gui.screen.Screen
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.fml.ExtensionPoint.CONFIGGUIFACTORY
+import net.minecraftforge.fml.ExtensionPoint.DISPLAYTEST
+import net.minecraftforge.fml.ModLoadingContext
+import net.minecraftforge.fml.common.Mod
+import net.minecraftforge.fml.config.ModConfig
+import org.apache.commons.lang3.tuple.Pair
+import org.apache.logging.log4j.Level
+import org.apache.logging.log4j.LogManager
+import org.apache.logging.log4j.simple.SimpleLogger
+import org.apache.logging.log4j.util.PropertiesUtil
+import thedarkcolour.kotlinforforge.forge.MOD_BUS
+import java.io.File
+import java.io.PrintStream
+import java.util.Properties
+import java.util.function.BiFunction
+import java.util.function.BiPredicate
+import java.util.function.Supplier
+
+@Mod(BetterFoliageMod.MOD_ID)
+object BetterFoliageMod {
+    const val MOD_ID = "betterfoliage"
+
+    val bus = MOD_BUS
+    val config = MainConfig()
+
+    val detailLogStream = PrintStream(File("logs/betterfoliage.log").apply {
+        parentFile.mkdirs()
+        if (!exists()) createNewFile()
+    })
+
+    fun logger(obj: Any) = LogManager.getLogger(obj)
+    fun detailLogger(obj: Any) = SimpleLogger(
+        obj::class.java.simpleName, Level.DEBUG, false, true, true, false, "yyyy-MM-dd HH:mm:ss", null, PropertiesUtil(Properties()), detailLogStream
+    )
+
+    init {
+        val ctx = ModLoadingContext.get()
+
+        val configSpec = config.forgeSpecRoot()
+        ctx.registerConfig(ModConfig.Type.CLIENT, configSpec)
+
+        // Add config GUI extension if Cloth Config is available
+        val clothLoaded = tryDefault(false) { Class.forName("me.shedaniel.clothconfig2.forge.api.ConfigBuilder"); true }
+        if (clothLoaded) {
+            logger(this).log(Level.INFO, "Cloth Config found, registering GUI")
+            ctx.registerExtensionPoint(CONFIGGUIFACTORY) { BiFunction<Minecraft, Screen, Screen> { client, parent ->
+                config.clothGuiRoot(
+                    parentScreen = parent,
+                    prefix = listOf(MOD_ID),
+                    background = ResourceLocation("minecraft:textures/block/spruce_log.png"),
+                    saveAction = { configSpec.save() }
+                )
+            } }
+        }
+
+        // Accept-all version tester (we are client-only)
+        ctx.registerExtensionPoint(DISPLAYTEST) {
+            Pair.of(
+                Supplier { "Honk if you see this!" },
+                BiPredicate<String, Boolean> { _, _ -> true }
+            )
+        }
+
+        Minecraft.getInstance().resourcePackRepository.addPackFinder(BetterFoliage.generatedPack.finder)
+        BetterFoliage.init()
+    }
+}

src/main/kotlin/mods/betterfoliage/CommonRefs.kt

@@ -1,29 +1,106 @@
 package mods.betterfoliage
 
+import mods.betterfoliage.util.ClassRef
+import mods.betterfoliage.util.ClassRef.Companion.float
+import mods.betterfoliage.util.ClassRef.Companion.void
+import mods.betterfoliage.util.FieldRef
+import mods.betterfoliage.util.MethodRef
+import net.minecraft.block.Block
+import net.minecraft.block.BlockState
+import net.minecraft.client.renderer.BlockModelRenderer
+import net.minecraft.client.renderer.BlockRendererDispatcher
+import net.minecraft.client.renderer.BufferBuilder
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.chunk.ChunkRenderCache
+import net.minecraft.client.renderer.model.BakedQuad
+import net.minecraft.client.renderer.model.IUnbakedModel
+import net.minecraft.client.renderer.model.ModelBakery
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.util.ResourceLocation
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraft.world.IBlockReader
+import net.minecraftforge.client.model.pipeline.BlockInfo
+import net.minecraftforge.client.model.pipeline.VertexLighterFlat
+import net.minecraftforge.registries.IRegistryDelegate
+import java.util.Random
+import java.util.function.Predicate
+
+typealias Sprite = TextureAtlasSprite
+
+// Java
+val String = ClassRef<String>("java.lang.String")
+val List = ClassRef<List<*>>("java.util.List")
+val Random = ClassRef<Random>("java.util.Random")
+fun <K, V> mapRef() = ClassRef<Map<K, V>>("java.util.Map")
+fun <K, V> mapRefMutable() = ClassRef<MutableMap<K, V>>("java.util.Map")
+
+// Minecraft
+val IBlockReader = ClassRef<IBlockReader>("net.minecraft.world.IBlockReader")
+val ILightReader = ClassRef<IBlockDisplayReader>("net.minecraft.world.IBlockDisplayReader")
+val BlockState = ClassRef<BlockState>("net.minecraft.block.BlockState")
+val BlockPos = ClassRef<BlockPos>("net.minecraft.util.math.BlockPos")
+val Block = ClassRef<Block>("net.minecraft.block.Block")
+
+val TextureAtlasSprite = ClassRef<TextureAtlasSprite>("net.minecraft.client.renderer.texture.TextureAtlasSprite")
+val BufferBuilder = ClassRef<BufferBuilder>("net.minecraft.client.renderer.BufferBuilder")
+val BufferBuilder_setSprite = MethodRef(BufferBuilder, "setSprite", void, TextureAtlasSprite)
+val BufferBuilder_sVertexBuilder = FieldRef(BufferBuilder, "sVertexBuilder", SVertexBuilder)
+val BlockRendererDispatcher = ClassRef<BlockRendererDispatcher>("net.minecraft.client.renderer.BlockRendererDispatcher")
+val ChunkRenderCache = ClassRef<ChunkRenderCache>("net.minecraft.client.renderer.chunk.ChunkRenderCache")
+val ResourceLocation = ClassRef<ResourceLocation>("net.minecraft.util.ResourceLocation")
+val BakedQuad = ClassRef<BakedQuad>("net.minecraft.client.renderer.model.BakedQuad")
+val BlockModelRenderer = ClassRef<BlockModelRenderer>("net.minecraft.client.renderer.BlockModelRenderer")
+
+val VertexLighterFlat = ClassRef<VertexLighterFlat>("net.minecraftforge.client.model.pipeline.VertexLighterFlat")
+val BlockInfo = ClassRef<BlockInfo>("net.minecraftforge.client.model.pipeline.BlockInfo")
+val VertexLighterFlat_blockInfo = FieldRef(VertexLighterFlat, "blockInfo", BlockInfo)
+val BlockInfo_shx = FieldRef(BlockInfo, "shx", float)
+val BlockInfo_shy = FieldRef(BlockInfo, "shy", float)
+val BlockInfo_shz = FieldRef(BlockInfo, "shz", float)
+
+object ModelBakery : ClassRef<ModelBakery>("net.minecraft.client.renderer.model.ModelBakery") {
+    val unbakedModels = FieldRef(this, "unbakedModels", mapRefMutable<ResourceLocation, IUnbakedModel>())
+    val topUnbakedModels = FieldRef(this, "topUnbakedModels", mapRefMutable<ResourceLocation, IUnbakedModel>())
+}
+
+object RenderTypeLookup : ClassRef<RenderTypeLookup>("net.minecraft.client.renderer.RenderTypeLookup") {
+    val blockRenderChecks = FieldRef(this, "blockRenderChecks", mapRefMutable<IRegistryDelegate<Block>, Predicate<RenderType>>())
+}
 
 // Optifine
-//val OptifineClassTransformer = ClassRefOld<Any>("optifine.OptiFineClassTransformer")
-//val BlockPosM = ClassRefOld<Any>("net.optifine.BlockPosM")
-//object ChunkCacheOF : ClassRefOld<Any>("net.optifine.override.ChunkCacheOF") {
-//    val chunkCache = FieldRefOld(this, "chunkCache", ChunkRendererRegion)
-//}
+val OptifineClassTransformer = ClassRef<Any>("optifine.OptiFineClassTransformer")
+val BlockPosM = ClassRef<Any>("net.optifine.BlockPosM")
+object ChunkCacheOF : ClassRef<Any>("net.optifine.override.ChunkCacheOF") {
+    val chunkCache = FieldRef(this, "chunkCache", ChunkRenderCache)
+}
 
-//object RenderEnv : ClassRefOld<Any>("net.optifine.render.RenderEnv") {
-//    val reset = MethodRefOld(this, "reset", void, BlockState, BlockPos)
-//}
+object RenderEnv : ClassRef<Any>("net.optifine.render.RenderEnv") {
+    val reset = MethodRef(this, "reset", void, BlockState, BlockPos)
+}
 
 // Optifine custom colors
-//val IColorizer = ClassRefOld<Any>("net.optifine.CustomColors\$IColorizer")
-//object CustomColors : ClassRefOld<Any>("net.optifine.CustomColors") {
-//    val getColorMultiplier = MethodRefOld(this, "getColorMultiplier", int, BakedQuad, BlockState, ExtendedBlockView, BlockPos, RenderEnv)
-//}
+val IColorizer = ClassRef<Any>("net.optifine.CustomColors\$IColorizer")
+object CustomColors : ClassRef<Any>("net.optifine.CustomColors") {
+    val getColorMultiplier = MethodRef(this, "getColorMultiplier", int, BakedQuad, BlockState, ILightReader, BlockPos, RenderEnv)
+}
 
 // Optifine shaders
-//object SVertexBuilder : ClassRefOld<Any>("net.optifine.shaders.SVertexBuilder") {
-//    val pushState = MethodRefOld(this, "pushEntity", void, BlockState, BlockPos, ExtendedBlockView, BufferBuilder)
-//    val pushNum = MethodRefOld(this, "pushEntity", void, long)
-//    val pop = MethodRefOld(this, "popEntity", void)
-//}
+object Shaders : ClassRef<Any>("net.optifine.shaders.Shaders") {
+    val shaderPackLoaded = FieldRef(this, "shaderPackLoaded", boolean)
+    val blockLightLevel05 = FieldRef(this, "blockLightLevel05", float)
+    val blockLightLevel06 = FieldRef(this, "blockLightLevel06", float)
+    val blockLightLevel08 = FieldRef(this, "blockLightLevel08", float)
+}
+
+object SVertexBuilder : ClassRef<Any>("net.optifine.shaders.SVertexBuilder") {
+    val pushState = MethodRef(this, "pushEntity", void, long)
+    val popState = MethodRef(this, "popEntity", void)
+}
+
+object BlockAliases : ClassRef<Any>("net.optifine.shaders.BlockAliases") {
+    val getAliasBlockId = MethodRef(this, "getAliasBlockId", int, BlockState)
+}
 
 
 

src/main/kotlin/mods/betterfoliage/Events.kt

@@ -1,72 +1,8 @@
 package mods.betterfoliage
 
-import net.fabricmc.fabric.api.event.Event
-import net.fabricmc.fabric.api.event.EventFactory
-import net.minecraft.client.render.block.BlockModels
-import net.minecraft.client.render.model.ModelLoader
-import net.minecraft.client.world.ClientWorld
-import net.minecraft.resource.ResourceManager
-import net.minecraft.world.chunk.WorldChunk
+import net.minecraft.client.renderer.model.ModelBakery
+import net.minecraft.client.renderer.texture.AtlasTexture
+import net.minecraft.resources.IResourceManager
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.eventbus.api.Event
 
-interface ClientChunkLoadCallback {
-    fun loadChunk(chunk: WorldChunk)
-    fun unloadChunk(chunk: WorldChunk)
-
-    companion object {
-        @JvmField val EVENT: Event<ClientChunkLoadCallback> = EventFactory.createArrayBacked(ClientChunkLoadCallback::class.java) { listeners ->
-            object : ClientChunkLoadCallback {
-                override fun loadChunk(chunk: WorldChunk) { listeners.forEach { it.loadChunk(chunk) } }
-                override fun unloadChunk(chunk: WorldChunk) { listeners.forEach { it.unloadChunk(chunk) } }
-            }
-        }
-    }
-}
-
-interface ClientWorldLoadCallback {
-    fun loadWorld(world: ClientWorld)
-
-    companion object {
-        @JvmField val EVENT : Event<ClientWorldLoadCallback> = EventFactory.createArrayBacked(ClientWorldLoadCallback::class.java) { listeners ->
-            object : ClientWorldLoadCallback {
-                override fun loadWorld(world: ClientWorld) { listeners.forEach { it.loadWorld(world) } }
-            }
-        }
-    }
-}
-
-/**
- * Event fired after [BlockModels.reload] finishes.
- */
-interface BlockModelsReloadCallback {
-    fun reloadBlockModels(blockModels: BlockModels)
-
-    companion object {
-        @JvmField val EVENT: Event<BlockModelsReloadCallback> = EventFactory.createArrayBacked(BlockModelsReloadCallback::class.java) { listeners ->
-            object : BlockModelsReloadCallback {
-                override fun reloadBlockModels(blockModels: BlockModels) {
-                    listeners.forEach { it.reloadBlockModels(blockModels) }
-                }
-            }
-        }
-    }
-}
-
-/**
- * Event fired when the [ModelLoader] first starts loading models.
- *
- * This happens during the constructor, so BEWARE!
- * Try to avoid any interaction until the block texture atlas starts stitching.
- */
-interface ModelLoadingCallback {
-    fun beginLoadModels(loader: ModelLoader, manager: ResourceManager)
-
-    companion object {
-        @JvmField val EVENT: Event<ModelLoadingCallback> = EventFactory.createArrayBacked(ModelLoadingCallback::class.java) { listeners ->
-            object : ModelLoadingCallback {
-                override fun beginLoadModels(loader: ModelLoader, manager: ResourceManager) {
-                    listeners.forEach { it.beginLoadModels(loader, manager) }
-                }
-            }
-        }
-    }
-}

src/main/kotlin/mods/betterfoliage/Hooks.kt

@@ -2,66 +2,76 @@
 package mods.betterfoliage
 
 import mods.betterfoliage.chunk.ChunkOverlayManager
-import mods.betterfoliage.render.particle.FallingLeafParticle
-import mods.betterfoliage.render.particle.RisingSoulParticle
-import mods.betterfoliage.render.block.vanilla.LeafKey
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.WeightedModelWrapper
 import mods.betterfoliage.render.block.vanilla.RoundLogKey
-import mods.betterfoliage.util.offset
-import mods.betterfoliage.util.plus
-import mods.betterfoliage.util.randomD
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.block.BlockRenderLayer.CUTOUT
-import net.minecraft.block.BlockRenderLayer.CUTOUT_MIPPED
+import mods.betterfoliage.render.particle.FallingLeafParticle
+import mods.betterfoliage.render.particle.LeafBlockModel
+import mods.betterfoliage.render.particle.RisingSoulParticle
+import net.minecraft.block.Block
 import net.minecraft.block.BlockState
 import net.minecraft.block.Blocks
-import net.minecraft.client.MinecraftClient
+import net.minecraft.client.Minecraft
 import net.minecraft.client.world.ClientWorld
+import net.minecraft.util.Direction
+import net.minecraft.util.Direction.DOWN
+import net.minecraft.util.Direction.UP
 import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction
-import net.minecraft.util.shape.VoxelShape
-import net.minecraft.util.shape.VoxelShapes
-import net.minecraft.world.BlockView
+import net.minecraft.util.math.shapes.VoxelShape
+import net.minecraft.util.math.shapes.VoxelShapes
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraft.world.IBlockReader
+import net.minecraft.world.World
+import java.util.Random
 
 fun getAmbientOcclusionLightValueOverride(original: Float, state: BlockState): Float {
-    if (BetterFoliage.config.enabled &&
-        BetterFoliage.config.roundLogs.enabled &&
-        BetterFoliage.modelReplacer.getTyped<RoundLogKey>(state) != null
-    ) return BetterFoliage.config.roundLogs.dimming.toFloat()
+    if (Config.enabled && Config.roundLogs.enabled && BetterFoliage.blockTypes.hasTyped<RoundLogKey>(state))
+        return Config.roundLogs.dimming.toFloat()
     return original
 }
 
-fun getUseNeighborBrightnessOverride(original: Boolean, state: BlockState): Boolean {
-    return original || (BetterFoliage.config.enabled && BetterFoliage.config.roundLogs.enabled && BetterFoliage.blockConfig.logBlocks.matchesClass(state.block));
-}
-
-fun onClientBlockChanged(worldClient: ClientWorld, pos: BlockPos, oldState: BlockState, newState: BlockState) {
+fun onClientBlockChanged(worldClient: ClientWorld, pos: BlockPos, oldState: BlockState, newState: BlockState, flags: Int) {
     ChunkOverlayManager.onBlockChange(worldClient, pos)
 }
 
-fun onRandomDisplayTick(world: ClientWorld, pos: BlockPos) {
+fun onRandomDisplayTick(world: ClientWorld, pos: BlockPos, random: Random) {
     val state = world.getBlockState(pos)
-
-    if (BetterFoliage.config.enabled &&
-        BetterFoliage.config.risingSoul.enabled &&
+    if (Config.enabled &&
+        Config.risingSoul.enabled &&
         state.block == Blocks.SOUL_SAND &&
-        world.isAir(pos + Direction.UP.offset) &&
-        Math.random() < BetterFoliage.config.risingSoul.chance) {
+        world.getBlockState(pos.relative(UP)).isAir &&
+        Math.random() < Config.risingSoul.chance) {
             RisingSoulParticle(world, pos).addIfValid()
     }
 
-    if (BetterFoliage.config.enabled &&
-        BetterFoliage.config.fallingLeaves.enabled &&
-        world.isAir(pos + Direction.DOWN.offset) &&
-        randomD() < BetterFoliage.config.fallingLeaves.chance) {
-            BetterFoliage.modelReplacer.getTyped<LeafKey>(state)?.let { key ->
-                FallingLeafParticle(world, pos, key).addIfValid()
-            }
+    if (Config.enabled &&
+        Config.fallingLeaves.enabled &&
+        random.nextDouble() < Config.fallingLeaves.chance &&
+        world.getBlockState(pos.relative(DOWN)).isAir
+    ) {
+        (getActualRenderModel(world, pos, state, random) as? LeafBlockModel)?.let { leafModel ->
+            val blockColor = Minecraft.getInstance().blockColors.getColor(state, world, pos, 0)
+            FallingLeafParticle(world, pos, leafModel.key, blockColor, random).addIfValid()
+        }
     }
 }
 
-fun getVoxelShapeOverride(state: BlockState, reader: BlockView, pos: BlockPos, dir: Direction): VoxelShape {
-    if (BetterFoliage.modelReplacer[state] is RoundLogKey) {
+fun getVoxelShapeOverride(state: BlockState, reader: IBlockReader, pos: BlockPos, dir: Direction): VoxelShape {
+    if (Config.enabled && Config.roundLogs.enabled && BetterFoliage.blockTypes.hasTyped<RoundLogKey>(state))
         return VoxelShapes.empty()
-    }
-    return state.getCullShape(reader, pos, dir)
+    return state.getFaceOcclusionShape(reader, pos, dir)
 }
+
+fun shouldForceSideRenderOF(state: BlockState, world: IBlockReader, pos: BlockPos, face: Direction) =
+    world.getBlockState(pos.relative(face)).let { neighbor -> BetterFoliage.blockTypes.hasTyped<RoundLogKey>(neighbor) }
+
+fun getActualRenderModel(world: IBlockDisplayReader, pos: BlockPos, state: BlockState, random: Random): SpecialRenderModel? {
+    val model = Minecraft.getInstance().blockRenderer.blockModelShaper.getBlockModel(state) as? SpecialRenderModel
+        ?: return null
+    if (model is WeightedModelWrapper) {
+        random.setSeed(state.getSeed(pos))
+        return model.getModel(random).model
+    }
+    return model
+}

src/main/kotlin/mods/betterfoliage/chunk/BlockContext.kt

@@ -1,55 +1,62 @@
 package mods.betterfoliage.chunk
 
 import mods.betterfoliage.util.Int3
-import mods.betterfoliage.util.allDirections
 import mods.betterfoliage.util.offset
 import mods.betterfoliage.util.plus
+import mods.betterfoliage.util.semiRandom
 import net.minecraft.block.Block
 import net.minecraft.block.BlockState
-import net.minecraft.client.MinecraftClient
+import net.minecraft.client.renderer.chunk.ChunkRenderCache
+import net.minecraft.util.Direction
 import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction
-import net.minecraft.world.ExtendedBlockView
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraft.world.IWorldReader
 import net.minecraft.world.biome.Biome
+import net.minecraft.world.level.ColorResolver
 
 /**
  * Represents the block being rendered. Has properties and methods to query the neighborhood of the block in
  * block-relative coordinates.
  */
 interface BlockCtx {
-    val world: ExtendedBlockView
+    val world: IBlockDisplayReader
     val pos: BlockPos
 
+    val seed: Long get() = state.getSeed(pos)
+
     fun offset(dir: Direction) = offset(dir.offset)
     fun offset(offset: Int3): BlockCtx
 
     val state: BlockState get() = world.getBlockState(pos)
-    fun state(dir: Direction) = world.getBlockState(pos + dir.offset)
     fun state(offset: Int3) = world.getBlockState(pos + offset)
+    fun state(dir: Direction) = state(dir.offset)
 
-    val biome: Biome get() = world.getBiome(pos)
+    fun isAir(offset: Int3) = (pos + offset).let { world.getBlockState(it).isAir(world, it) }
+    fun isAir(dir: Direction) = isAir(dir.offset)
 
-    val isNormalCube: Boolean get() = state.isSimpleFullBlock(world, pos)
+    val biome: Biome? get() =
+        (world as? IWorldReader)?.getBiome(pos) ?:
+        (world as? ChunkRenderCache)?.level?.getBiome(pos)
 
-    fun shouldSideBeRendered(side: Direction) = Block.shouldDrawSide(state, world, pos, side)
+    val isFullBlock: Boolean get() = state.isCollisionShapeFullBlock(world, pos)
 
-    fun isNeighborSolid(dir: Direction) = offset(dir).let { it.state.isSideSolidFullSquare(it.world, it.pos, dir.opposite) }
+    fun isNeighborSturdy(dir: Direction) = offset(dir).let { it.state.isFaceSturdy(it.world, it.pos, dir.opposite) }
 
-    fun model(dir: Direction) = state(dir).let { MinecraftClient.getInstance().blockRenderManager.getModel(it)!! }
-    fun model(offset: Int3) = state(offset).let { MinecraftClient.getInstance().blockRenderManager.getModel(it)!! }
+    fun shouldSideBeRendered(side: Direction) = Block.shouldRenderFace(state, world, pos, side)
+
+    /** Get a semi-random value based on the block coordinate and the given seed. */
+    fun semiRandom(seed: Int) = pos.semiRandom(seed)
+
+    /** Get an array of semi-random values based on the block coordinate. */
+    fun semiRandomArray(num: Int): Array<Int> = Array(num) { semiRandom(it) }
+
+    fun color(resolver: ColorResolver) = world.getBlockTint(pos, resolver)
 }
 
-open class BasicBlockCtx(
-    override val world: ExtendedBlockView,
+class BasicBlockCtx(
+    override val world: IBlockDisplayReader,
     override val pos: BlockPos
 ) : BlockCtx {
-    override val state = world.getBlockState(pos)
+    override val state: BlockState = world.getBlockState(pos)
     override fun offset(offset: Int3) = BasicBlockCtx(world, pos + offset)
-    fun cache() = CachedBlockCtx(world, pos)
-}
-
-open class CachedBlockCtx(world: ExtendedBlockView, pos: BlockPos) : BasicBlockCtx(world, pos) {
-    var neighbors = Array<BlockState>(6) { world.getBlockState(pos + allDirections[it].offset) }
-    override var biome: Biome = world.getBiome(pos)
-    override fun state(dir: Direction) = neighbors[dir.ordinal]
 }

src/main/kotlin/mods/betterfoliage/chunk/OffsetBlockView.kt

@@ -1,50 +0,0 @@
-package mods.betterfoliage.chunk
-
-import net.minecraft.util.math.BlockPos
-import net.minecraft.world.BlockView
-import net.minecraft.world.ExtendedBlockView
-import net.minecraft.world.LightType
-
-/**
- * Delegating [IBlockAccess] that fakes a _modified_ location to return values from a _target_ location.
- * All other locations are handled normally.
- *
- * @param[original] the [IBlockAccess] that is delegated to
- */
-@Suppress("NOTHING_TO_INLINE", "NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS", "HasPlatformType")
-open class OffsetBlockView(open val original: BlockView, val modded: BlockPos, val target: BlockPos) : BlockView {
-    inline fun actualPos(pos: BlockPos) = if (pos != null && pos.x == modded.x && pos.y == modded.y && pos.z == modded.z) target else pos
-
-    override fun getBlockState(pos: BlockPos) = original.getBlockState(actualPos(pos))
-    override fun getBlockEntity(pos: BlockPos) = original.getBlockEntity(actualPos(pos))
-    override fun getFluidState(pos: BlockPos) = original.getFluidState(actualPos(pos))
-}
-
-@Suppress("NOTHING_TO_INLINE", "NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS", "HasPlatformType")
-class OffsetExtBlockView(val original: ExtendedBlockView, val modded: BlockPos, val target: BlockPos) : ExtendedBlockView by original {
-    inline fun actualPos(pos: BlockPos) = if (pos != null && pos.x == modded.x && pos.y == modded.y && pos.z == modded.z) target else pos
-
-    override fun getBlockState(pos: BlockPos) = original.getBlockState(actualPos(pos))
-    override fun getBlockEntity(pos: BlockPos) = original.getBlockEntity(actualPos(pos))
-    override fun getFluidState(pos: BlockPos) = original.getFluidState(actualPos(pos))
-
-    override fun getLightLevel(type: LightType, pos: BlockPos) = original.getLightLevel(type, actualPos(pos))
-    override fun getLightmapIndex(pos: BlockPos, light: Int) = original.getLightmapIndex(actualPos(pos), light)
-    override fun getBiome(pos: BlockPos) = original.getBiome(actualPos(pos))
-}
-
-/**
- * Temporarily replaces the [IBlockReader] used by this [BlockContext] and the corresponding [ExtendedRenderBlocks]
- * to use an [OffsetEnvBlockReader] while executing this lambda.
- *
- * @param[modded] the _modified_ location
- * @param[target] the _target_ location
- * @param[func] the lambda to execute
- */
-//inline fun <reified T> BlockContext.withOffset(modded: Int3, target: Int3, func: () -> T): T {
-//    val original = reader!!
-//    reader = OffsetEnvBlockReader(original, pos + modded, pos + target)
-//    val result = func()
-//    reader = original
-//    return result
-//}

src/main/kotlin/mods/betterfoliage/chunk/Overlay.kt

@@ -1,124 +1,95 @@
 package mods.betterfoliage.chunk
 
-import mods.betterfoliage.*
-import mods.betterfoliage.util.YarnHelper
 import mods.betterfoliage.util.get
-import net.minecraft.client.render.chunk.ChunkRendererRegion
+import mods.betterfoliage.util.isInstance
+import mods.betterfoliage.ChunkCacheOF
+import net.minecraft.client.renderer.chunk.ChunkRenderCache
 import net.minecraft.client.world.ClientWorld
 import net.minecraft.util.math.BlockPos
 import net.minecraft.util.math.ChunkPos
-import net.minecraft.world.ExtendedBlockView
-import net.minecraft.world.ViewableWorld
-import net.minecraft.world.World
-import net.minecraft.world.chunk.WorldChunk
-import net.minecraft.world.dimension.DimensionType
+import net.minecraft.world.DimensionType
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraft.world.IWorldReader
+import net.minecraftforge.common.MinecraftForge
+import net.minecraftforge.event.world.ChunkEvent
+import net.minecraftforge.event.world.WorldEvent
+import net.minecraftforge.eventbus.api.SubscribeEvent
 import java.util.*
-import kotlin.collections.List
-import kotlin.collections.MutableMap
-import kotlin.collections.associateWith
-import kotlin.collections.forEach
-import kotlin.collections.mutableListOf
-import kotlin.collections.mutableMapOf
 import kotlin.collections.set
 
-// net.minecraft.world.chunk.WorldChunk.world
-val WorldChunk_world = YarnHelper.requiredField<World>("net.minecraft.class_2818", "field_12858", "Lnet/minecraft/class_1937;")
-// net.minecraft.client.render.chunk.ChunkRendererRegion.world
-val ChunkRendererRegion_world = YarnHelper.requiredField<World>("net.minecraft.class_853", "field_4490", "Lnet/minecraft/class_1937;")
-
-val ExtendedBlockView.dimType: DimensionType get() = when {
-    this is ViewableWorld -> dimension.type
-    this is ChunkRendererRegion -> this[ChunkRendererRegion_world]!!.dimension.type
-//    this.isInstance(ChunkCacheOF) -> this[ChunkCacheOF.chunkCache]!!.dimType
+val IBlockDisplayReader.dimType: DimensionType get() = when {
+    this is IWorldReader -> dimensionType()
+    this is ChunkRenderCache -> level.dimensionType()
+    this.isInstance(ChunkCacheOF) -> this[ChunkCacheOF.chunkCache].level.dimensionType()
     else -> throw IllegalArgumentException("DimensionType of world with class ${this::class.qualifiedName} cannot be determined!")
 }
 
 /**
  * Represents some form of arbitrary non-persistent data that can be calculated and cached for each block position
  */
-interface ChunkOverlayLayer<T> {
-    fun calculate(ctx: BlockCtx): T
-    fun onBlockUpdate(world: ExtendedBlockView, pos: BlockPos)
+abstract class ChunkOverlayLayer<T> {
+    val dimData = IdentityHashMap<DimensionType, SparseChunkedMap<T>>()
+    abstract fun calculate(ctx: BlockCtx): T
+    abstract fun onBlockUpdate(world: IBlockDisplayReader, pos: BlockPos)
+
+    operator fun get(ctx: BlockCtx): T {
+        return dimData
+            .getOrPut(ctx.world.dimType) { SparseChunkedMap() }
+            .getOrPut(ctx.pos) { calculate(ctx) }
+    }
+
+    fun remove(world: IBlockDisplayReader, pos: BlockPos) {
+        dimData[world.dimType]?.remove(pos)
+    }
 }
 
 /**
- * Query, lazy calculation and lifecycle management of multiple layers of chunk overlay data.
+ * Event forwarder for multiple layers of chunk overlay data.
  */
-object ChunkOverlayManager : ClientChunkLoadCallback, ClientWorldLoadCallback {
-
-    init {
-        ClientWorldLoadCallback.EVENT.register(this)
-        ClientChunkLoadCallback.EVENT.register(this)
-    }
-
-    val chunkData = IdentityHashMap<DimensionType, MutableMap<ChunkPos, ChunkOverlayData>>()
+object ChunkOverlayManager {
+    init { MinecraftForge.EVENT_BUS.register(this) }
     val layers = mutableListOf<ChunkOverlayLayer<*>>()
 
-    /**
-     * Get the overlay data for a given layer and position
-     *
-     * @param layer Overlay layer to query
-     * @param reader World to use if calculation of overlay value is necessary
-     * @param pos Block position
-     */
-    fun <T> get(layer: ChunkOverlayLayer<T>, ctx: BlockCtx): T? {
-        val data = chunkData[ctx.world.dimType]?.get(ChunkPos(ctx.pos)) ?: return null
-        data.get(layer, ctx.pos).let { value ->
-            if (value !== ChunkOverlayData.UNCALCULATED) return value
-            val newValue = layer.calculate(ctx)
-            data.set(layer, ctx.pos, newValue)
-            return newValue
-        }
-    }
-
-    /**
-     * Clear the overlay data for a given layer and position
-     *
-     * @param layer Overlay layer to clear
-     * @param pos Block position
-     */
-    fun <T> clear(dimension: DimensionType, layer: ChunkOverlayLayer<T>, pos: BlockPos) {
-        chunkData[dimension]?.get(ChunkPos(pos))?.clear(layer, pos)
-    }
-
     fun onBlockChange(world: ClientWorld, pos: BlockPos) {
-        if (chunkData[world.dimType]?.containsKey(ChunkPos(pos)) == true) {
-            layers.forEach { layer -> layer.onBlockUpdate(world, pos) }
-        }
+        layers.forEach { layer -> layer.onBlockUpdate(world, pos) }
     }
 
-    override fun loadChunk(chunk: WorldChunk) {
-        chunk[WorldChunk_world]!!.dimType.let { dim ->
-            val data = chunkData[dim] ?: mutableMapOf<ChunkPos, ChunkOverlayData>().apply { chunkData[dim] = this }
-            data.let { chunks ->
-                // check for existence first because Optifine fires a TON of these
-                if (chunk.pos !in chunks.keys) chunks[chunk.pos] = ChunkOverlayData(layers)
-            }
-        }
+    @SubscribeEvent
+    fun handleUnloadWorld(event: WorldEvent.Unload) = (event.world as? ClientWorld)?.let { world ->
+        layers.forEach { layer -> layer.dimData.remove(world.dimType) }
     }
 
-    override fun unloadChunk(chunk: WorldChunk) {
-        chunk[WorldChunk_world]!!.dimType.let { dim ->
-            chunkData[dim]?.remove(chunk.pos)
-        }
-    }
-
-    override fun loadWorld(world: ClientWorld) {
-        val dim = world.dimType
-//        chunkData.keys.forEach { if (it == dim) chunkData[dim] = mutableMapOf() else chunkData.remove(dim)}
+    @SubscribeEvent
+    fun handleUnloadChunk(event: ChunkEvent.Unload) = (event.world as? ClientWorld)?.let { world ->
+        layers.forEach { layer -> layer.dimData[world.dimType]?.removeChunk(event.chunk.pos) }
     }
 }
 
-class ChunkOverlayData(layers: List<ChunkOverlayLayer<*>>) {
-    val BlockPos.isValid: Boolean get() = y in validYRange
-    val rawData = layers.associateWith { emptyOverlay() }
-    fun <T> get(layer: ChunkOverlayLayer<T>, pos: BlockPos): T? = if (pos.isValid) rawData[layer]?.get(pos.x and 15)?.get(pos.z and 15)?.get(pos.y) as T? else null
-    fun <T> set(layer: ChunkOverlayLayer<T>, pos: BlockPos, data: T) = if (pos.isValid) rawData[layer]?.get(pos.x and 15)?.get(pos.z and 15)?.set(pos.y, data) else null
-    fun <T> clear(layer: ChunkOverlayLayer<T>, pos: BlockPos) = if (pos.isValid) rawData[layer]?.get(pos.x and 15)?.get(pos.z and 15)?.set(pos.y, UNCALCULATED) else null
+interface DoubleMap<K1, K2, V> {
+    val map1: MutableMap<K1, MutableMap<K2, V>>
+    fun createMap2(): MutableMap<K2, V>
 
-    companion object {
-        val UNCALCULATED = object {}
-        fun emptyOverlay() = Array(16) { Array(16) { Array<Any?>(256) { UNCALCULATED }}}
-        val validYRange = 0 until 256
+    fun remove(key1: K1) {
+        map1.remove(key1)
     }
+    fun remove(key1: K1, key2: K2) {
+        map1[key1]?.remove(key2)
+    }
+    fun contains(key1: K1) = map1.contains(key1)
+
+    fun getOrSet(key1: K1, key2: K2, factory: () -> V) =
+        (map1[key1] ?: createMap2().apply { map1[key1] = this }).let { subMap ->
+            subMap[key2] ?: factory().apply { subMap[key2] = this }
+        }
 }
+
+class SparseChunkedMap<V> {
+    val map = object : DoubleMap<ChunkPos, BlockPos, V> {
+        override val map1 = mutableMapOf<ChunkPos, MutableMap<BlockPos, V>>()
+        override fun createMap2() = mutableMapOf<BlockPos, V>()
+    }
+
+    fun getOrPut(pos: BlockPos, factory: () -> V) = map.getOrSet(ChunkPos(pos), pos, factory)
+    fun remove(pos: BlockPos) = map.remove(ChunkPos(pos), pos)
+    fun removeChunk(pos: ChunkPos) = map.map1.remove(pos)
+}

src/main/kotlin/mods/betterfoliage/config/BlockConfig.kt

@@ -1,36 +1,40 @@
 package mods.betterfoliage.config
 
-import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.util.Invalidator
-import mods.betterfoliage.resource.discovery.ConfigurableBlockMatcher
-import mods.betterfoliage.resource.discovery.ModelTextureListConfiguration
-import net.minecraft.resource.ResourceManager
-import net.minecraft.util.Identifier
+import mods.betterfoliage.config.match.Node
+import mods.betterfoliage.config.match.parser.BlockConfigParser
+import mods.betterfoliage.config.match.parser.ParseException
+import mods.betterfoliage.config.match.parser.TokenMgrError
+import mods.betterfoliage.util.HasLogger
+import mods.betterfoliage.util.stripStart
+import net.minecraft.resources.IResourceManager
+import net.minecraft.util.ResourceLocation
+import org.apache.logging.log4j.Level
+import org.apache.logging.log4j.Level.ERROR
 
-class BlockConfig  {
-    private val list = mutableListOf<Any>()
+class BlockConfig : HasLogger() {
+    lateinit var rules: List<Node.MatchAll>
 
-    val leafBlocks = blocks("leaves_blocks_default.cfg")
-    val leafModels = models("leaves_models_default.cfg")
-    val grassBlocks = blocks("grass_blocks_default.cfg")
-    val grassModels = models("grass_models_default.cfg")
-    val mycelium = blocks("mycelium_blocks_default.cfg")
-    //    val dirt = blocks("dirt_default.cfg")
-    val crops = blocks("crop_default.cfg")
-    val logBlocks = blocks("log_blocks_default.cfg")
-    val logModels = models("log_models_default.cfg")
-    val sand = blocks("sand_default.cfg")
-    val lilypad = blocks("lilypad_default.cfg")
-    val cactus = blocks("cactus_default.cfg")
-    val netherrack = blocks("netherrack_blocks_default.cfg")
-
-    private fun blocks(cfgName: String) = ConfigurableBlockMatcher(BetterFoliage.logDetail, Identifier(BetterFoliage.MOD_ID, cfgName)).apply { list.add(this) }
-    private fun models(cfgName: String) = ModelTextureListConfiguration(BetterFoliage.logDetail, Identifier(BetterFoliage.MOD_ID, cfgName)).apply { list.add(this) }
-
-    fun reloadConfig(manager: ResourceManager) {
-        list.forEach { when(it) {
-            is ConfigurableBlockMatcher -> it.readDefaults(manager)
-            is ModelTextureListConfiguration -> it.readDefaults(manager)
-        } }
+    fun readConfig(manager: IResourceManager) {
+        val configs = manager.listResources("config/betterfoliage") { it.endsWith(".rules") }
+        rules = configs.flatMap { configLocation ->
+            val resource = manager.getResource(configLocation)
+            val parser = BlockConfigParser(resource.inputStream)
+                .apply { configFile = configLocation.stripStart("config/betterfoliage/").toString() }
+            try {
+                parser.matchFile()
+            } catch (e: ParseException) {
+                parseError(e, configLocation)
+            } catch (e: TokenMgrError) {
+                parseError(e, configLocation)
+            }
+        }
     }
-}
+
+    fun parseError(e: Throwable, location: ResourceLocation): List<Node.MatchAll> {
+        "Error parsing block config $location: ${e.message}".let {
+            logger.log(ERROR, it)
+            detailLogger.log(ERROR, it)
+        }
+        return emptyList()
+    }
+}

src/main/kotlin/mods/betterfoliage/config/Delegate.kt

@@ -1,137 +1,170 @@
 package mods.betterfoliage.config
 
-import me.shedaniel.clothconfig2.api.AbstractConfigListEntry
-import me.shedaniel.clothconfig2.api.ConfigEntryBuilder
-import me.shedaniel.clothconfig2.gui.entries.SubCategoryListEntry
-import me.zeroeightsix.fiber.builder.ConfigValueBuilder
-import me.zeroeightsix.fiber.tree.ConfigLeaf
-import me.zeroeightsix.fiber.tree.ConfigNode
-import me.zeroeightsix.fiber.tree.ConfigValue
-import net.minecraft.client.resource.language.I18n
-import java.util.*
+import me.shedaniel.clothconfig2.forge.api.AbstractConfigListEntry
+import me.shedaniel.clothconfig2.forge.api.ConfigBuilder
+import me.shedaniel.clothconfig2.forge.api.ConfigEntryBuilder
+import me.shedaniel.clothconfig2.forge.gui.entries.SubCategoryListEntry
+import mods.betterfoliage.util.asText
+import net.minecraft.client.gui.screen.Screen
+import net.minecraft.client.resources.I18n
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.common.ForgeConfigSpec
+import java.util.Optional
 import kotlin.properties.ReadOnlyProperty
 import kotlin.reflect.KProperty
 
 const val MAX_LINE_LEN = 30
 
-sealed class DelegatingConfigNode<N: ConfigLeaf>(val fiberNode: N) {
-    abstract fun createClothNode(names: List<String>): AbstractConfigListEntry<*>
+fun DelegatingConfigGroup.forgeSpecRoot() =
+    ForgeConfigSpec.Builder()
+        .also { createForgeNode(it) }
+        .build()
+
+fun DelegatingConfigGroup.clothGuiRoot(
+    parentScreen: Screen,
+    prefix: List<String>,
+    background: ResourceLocation,
+    saveAction: ()->Unit
+) = ConfigBuilder.create()
+    .setParentScreen(parentScreen)
+    .setTitle(I18n.get((prefix + "title").joinToString(".")).asText())
+    .setDefaultBackgroundTexture(background)
+    .setSavingRunnable(saveAction)
+    .also { builder ->
+        createClothNode(prefix).value.forEach { rootCategory ->
+            builder.getOrCreateCategory("main".asText()).addEntry(rootCategory)
+        }
+    }
+    .build()
+
+sealed class DelegatingConfigNode {
+    abstract fun createClothNode(path: List<String>): AbstractConfigListEntry<*>
 }
 
-abstract class DelegatingConfigValue<T>(fiberNode: ConfigValue<T>) : DelegatingConfigNode<ConfigValue<T>>(fiberNode), ReadOnlyProperty<DelegatingConfigGroup, T>
+abstract class DelegatingConfigValue<T> : DelegatingConfigNode(), ReadOnlyProperty<DelegatingConfigGroup, T> {
+    lateinit var forgeValue: ForgeConfigSpec.ConfigValue<T>
+    abstract fun createForgeNode(builder: ForgeConfigSpec.Builder, name: String)
+}
 
-open class DelegatingConfigGroup(fiberNode: ConfigNode) : DelegatingConfigNode<ConfigNode>(fiberNode) {
-    val children = mutableListOf<DelegatingConfigNode<*>>()
-    override fun createClothNode(names: List<String>): SubCategoryListEntry {
+open class DelegatingConfigGroup : DelegatingConfigNode() {
+    val children = mutableMapOf<String, DelegatingConfigNode>()
+
+    fun createForgeNode(builder: ForgeConfigSpec.Builder) {
+        children.forEach { (name, node) ->
+            when(node) {
+                is DelegatingConfigGroup -> {
+                    builder.push(name)
+                    node.createForgeNode(builder)
+                    builder.pop()
+                }
+                is DelegatingConfigValue<*> -> node.createForgeNode(builder, name)
+            }
+        }
+    }
+
+    override fun createClothNode(path: List<String>): SubCategoryListEntry {
         val builder = ConfigEntryBuilder.create()
-            .startSubCategory(names.joinToString(".").translate())
-            .setTooltip(*names.joinToString(".").translateTooltip())
-            .setExpended(false)
-        children.forEach { builder.add(it.createClothNode(names + it.fiberNode.name!!)) }
+            .startSubCategory(path.joinToString(".").translate())
+            .setTooltip(*path.joinToString(".").translateTooltip())
+            .setExpanded(false)
+        children.forEach { (name, node) -> builder.add(node.createClothNode(path + name)) }
         return builder.build()
     }
-    operator fun get(name: String) = children.find { it.fiberNode.name == name }
 }
 
 interface DelegatingConfigGroupFactory<T> {
     operator fun provideDelegate(parent: DelegatingConfigGroup, property: KProperty<*>): ReadOnlyProperty<DelegatingConfigGroup, T>
 }
 
-fun <T: DelegatingConfigGroup> subNode(factory: (ConfigNode)->T) = object : DelegatingConfigGroupFactory<T> {
+fun <T: DelegatingConfigGroup> subNode(factory: ()->T) = object : DelegatingConfigGroupFactory<T> {
     override operator fun provideDelegate(parent: DelegatingConfigGroup, property: KProperty<*>): ReadOnlyProperty<DelegatingConfigGroup, T> {
-        val childNode = ConfigNode(property.name, null)
-        val configGroup = factory(childNode)
-        parent.fiberNode.items.add(childNode)
-        parent.children.add(configGroup)
-        return object : ReadOnlyProperty<DelegatingConfigGroup, T> {
-            override fun getValue(thisRef: DelegatingConfigGroup, property: KProperty<*>) = configGroup
-        }
+        val child = factory()
+        parent.children[property.name] = child
+        return ReadOnlyProperty { _, _ -> child }
     }
 }
 
 interface DelegatingConfigValueFactory<T> {
-    fun createFiberNode(parent: ConfigNode, name: String): ConfigValue<T>
-    fun createClothNode(node: ConfigValue<T>, names: List<String>): AbstractConfigListEntry<T>
+    fun createForgeNode(builder: ForgeConfigSpec.Builder, name: String): ForgeConfigSpec.ConfigValue<T>
+    fun createClothNode(prop: CachingConfigProperty<T>, path: List<String>): AbstractConfigListEntry<T>
 
     operator fun provideDelegate(parent: DelegatingConfigGroup, property: KProperty<*>): ReadOnlyProperty<DelegatingConfigGroup, T> {
-        return object : DelegatingConfigValue<T>(createFiberNode(parent.fiberNode, property.name)) {
-            override fun createClothNode(names: List<String>) = createClothNode(fiberNode, names)
-            override fun getValue(thisRef: DelegatingConfigGroup, property: KProperty<*>) = fiberNode.value!!
-        }.apply { parent.children.add(this) }
+        return object : CachingConfigProperty<T>(parent, property) {
+            override fun createForgeNode(builder: ForgeConfigSpec.Builder, name: String) {
+                forgeValue = this@DelegatingConfigValueFactory.createForgeNode(builder, name)
+            }
+
+            override fun createClothNode(path: List<String>): AbstractConfigListEntry<*> = createClothNode(this, path)
+
+        }.apply { parent.children[property.name] = this }
     }
 }
 
-fun String.translate() = I18n.translate(this)
-fun String.translateTooltip(lineLength: Int = MAX_LINE_LEN) = ("$this.tooltip").translate().let { tooltip ->
-    tooltip.splitToSequence(" ").fold(mutableListOf("")) { tooltips, word ->
+abstract class CachingConfigProperty<T>(parent: DelegatingConfigGroup, property: KProperty<*>) : DelegatingConfigValue<T>() {
+    var value: T? = null
+    override fun getValue(thisRef: DelegatingConfigGroup, property: KProperty<*>) =
+        value ?: forgeValue.get().apply { value = this }
+}
+
+fun String.translate() = I18n.get(this).asText()
+fun String.translateTooltip(lineLength: Int = MAX_LINE_LEN) =
+    I18n.get("$this.tooltip").splitToSequence(" ").fold(mutableListOf("")) { tooltips, word ->
         if (tooltips.last().length + word.length < lineLength) {
             tooltips[tooltips.lastIndex] += "$word "
         } else {
             tooltips.add("$word ")
         }
         tooltips
-    }.map { it.trim() }.toTypedArray()
-}
+    }.map { it.trim().asText() }.toTypedArray()
 
 fun boolean(
     default: Boolean,
     langKey: (List<String>)->String = { it.joinToString(".") },
     valueOverride: (Boolean)->Boolean = { it }
 ) = object : DelegatingConfigValueFactory<Boolean> {
-    override fun createFiberNode(parent: ConfigNode, name: String) = ConfigValueBuilder(Boolean::class.java)
-        .withName(name)
-        .withParent(parent)
-        .withDefaultValue(default)
-        .build()
+    override fun createForgeNode(builder: ForgeConfigSpec.Builder, name: String) =
+        builder.define(name, default)
 
-    override fun createClothNode(node: ConfigValue<Boolean>, names: List<String>) = ConfigEntryBuilder.create()
-        .startBooleanToggle(langKey(names).translate(), node.value!!)
-        .setTooltip(langKey(names).let { if (I18n.hasTranslation("$it.tooltip")) Optional.of(it.translateTooltip()) else Optional.empty() })
-        .setSaveConsumer { node.value = valueOverride(it) }
+    override fun createClothNode(prop: CachingConfigProperty<Boolean>, path: List<String>) = ConfigEntryBuilder.create()
+        .startBooleanToggle(langKey(path).translate(), prop.forgeValue.get())
+        .setTooltip(langKey(path).let { if (I18n.exists("$it.tooltip")) Optional.of(it.translateTooltip()) else Optional.empty() })
+        .setSaveConsumer { prop.forgeValue.set(valueOverride(it)); prop.value = null }
         .build()
 }
 
 fun integer(
-    default: Int, min: Int, max: Int,
+    default: Int = 0, min: Int = 0, max: Int,
     langKey: (List<String>)->String = { it.joinToString(".") },
     valueOverride: (Int)->Int = { it }
 ) = object : DelegatingConfigValueFactory<Int> {
-    override fun createFiberNode(parent: ConfigNode, name: String) = ConfigValueBuilder(Int::class.java)
-        .withName(name)
-        .withParent(parent)
-        .withDefaultValue(default)
-        .constraints().minNumerical(min).maxNumerical(max).finish()
-        .build()
+    override fun createForgeNode(builder: ForgeConfigSpec.Builder, name: String) =
+        builder.defineInRange(name, default, min, max)
 
-    override fun createClothNode(node: ConfigValue<Int>, names: List<String>) = ConfigEntryBuilder.create()
-        .startIntField(langKey(names).translate(), node.value!!)
-        .setTooltip(langKey(names).let { if (I18n.hasTranslation("$it.tooltip")) Optional.of(it.translateTooltip()) else Optional.empty() })
+    override fun createClothNode(prop: CachingConfigProperty<Int>, path: List<String>) = ConfigEntryBuilder.create()
+        .startIntField(langKey(path).translate(), prop.forgeValue.get())
+        .setTooltip(langKey(path).let { if (I18n.exists("$it.tooltip")) Optional.of(it.translateTooltip()) else Optional.empty() })
         .setMin(min).setMax(max)
-        .setSaveConsumer { node.value = valueOverride(it) }
+        .setSaveConsumer { prop.forgeValue.set(valueOverride(it)); prop.value = null }
         .build()
 }
 
 fun double(
-    default: Double, min: Double, max: Double,
+    default: Double = 0.0, min: Double = 0.0, max: Double = 1.0,
     langKey: (List<String>)->String = { it.joinToString(".") },
     valueOverride: (Double)->Double = { it }
 ) = object : DelegatingConfigValueFactory<Double> {
-    override fun createFiberNode(parent: ConfigNode, name: String) = ConfigValueBuilder(Double::class.java)
-        .withName(name)
-        .withParent(parent)
-        .withDefaultValue(default)
-        .constraints().minNumerical(min).maxNumerical(max).finish()
-        .build()
+    override fun createForgeNode(builder: ForgeConfigSpec.Builder, name: String) =
+        builder.defineInRange(name, default, min, max)
 
-    override fun createClothNode(node: ConfigValue<Double>, names: List<String>) = ConfigEntryBuilder.create()
-        .startDoubleField(langKey(names).translate(), node.value!!)
-        .setTooltip(langKey(names).let { if (I18n.hasTranslation("$it.tooltip")) Optional.of(it.translateTooltip()) else Optional.empty() })
+    override fun createClothNode(prop: CachingConfigProperty<Double>, path: List<String>) = ConfigEntryBuilder.create()
+        .startDoubleField(langKey(path).translate(), prop.forgeValue.get())
+        .setTooltip(langKey(path).let { if (I18n.exists("$it.tooltip")) Optional.of(it.translateTooltip()) else Optional.empty() })
         .setMin(min).setMax(max)
-        .setSaveConsumer { node.value = valueOverride(it) }
+        .setSaveConsumer { prop.forgeValue.set(valueOverride(it)); prop.value = null }
         .build()
 }
 
-val recurring = { names: List<String> -> "${names.first()}.${names.last()}" }
+val recurring = { path: List<String> -> "${path.first()}.${path.last()}" }
 fun fakeCategory(name: String) = { names: List<String> ->
     (listOf(names.first(), name) + names.drop(1)).joinToString(".")
 }

src/main/kotlin/mods/betterfoliage/config/MainConfig.kt

@@ -1,154 +1,158 @@
 package mods.betterfoliage.config
 
-import me.zeroeightsix.fiber.tree.ConfigNode
-import java.util.*
+import mods.betterfoliage.BetterFoliageMod
+import java.util.Random
+
+fun featureEnable(default: Boolean = true) = boolean(default, langKey = recurring)
+
+val Config get() = BetterFoliageMod.config
+
+abstract class PopulationConfigGroup : DelegatingConfigGroup() {
+    abstract val enabled: Boolean
+    abstract val population: Int
 
-interface PopulationConfigData {
-    val enabled: Boolean
-    val population: Int
     fun enabled(random: Random) = random.nextInt(64) < population && enabled
 }
 
-fun population(default: Int) = integer(default, min = 0, max = 64, langKey = recurring)
+class MainConfig : DelegatingConfigGroup() {
+    val enabled by boolean(true, langKey = { "betterfoliage.global.enabled" })
+    val nVidia by boolean(false)
 
-class MainConfig : DelegatingConfigGroup(ConfigNode("root", null)) {
-
-    val enabled by boolean(true, langKey = fakeCategory("global"))
-    val nVidia by boolean(true, langKey = fakeCategory("global"))
-
-    val leaves by subNode { LeavesConfig(it) }
-    val shortGrass by subNode { ShortGrassConfig(it) }
-    val connectedGrass by subNode { ConnectedGrassConfig(it) }
-    val roundLogs by subNode { RoundLogConfig(it) }
-    val cactus by subNode { CactusConfig(it) }
-    val lilypad by subNode { LilypadConfig(it) }
-    val reed by subNode { ReedConfig(it) }
-    val algae by subNode { AlgaeConfig(it) }
-    val coral by subNode { CoralConfig(it) }
-    val netherrack by subNode { NetherrackConfig(it) }
-    val fallingLeaves by subNode { FallingLeavesConfig(it) }
-    val risingSoul by subNode { RisingSoulConfig(it) }
+    val leaves by subNode(::LeavesConfig)
+    val shortGrass by subNode(::ShortGrassConfig)
+    val connectedGrass by subNode(::ConnectedGrassConfig)
+    val roundLogs by subNode(::RoundLogConfig)
+    val cactus by subNode(::CactusConfig)
+    val lilypad by subNode(::LilypadConfig)
+    val reed by subNode(::ReedConfig)
+    val algae by subNode(::AlgaeConfig)
+    val coral by subNode(::CoralConfig)
+    val netherrack by subNode(::NetherrackConfig)
+    val fallingLeaves by subNode(::FallingLeavesConfig)
+    val risingSoul by subNode(::RisingSoulConfig)
 }
 
-class LeavesConfig(node: ConfigNode) : DelegatingConfigGroup(node) {
-    val enabled by boolean(true, langKey = recurring)
+class LeavesConfig : DelegatingConfigGroup() {
+    val enabled by featureEnable()
     val snowEnabled by boolean(true)
+    val hOffset by double(max=0.4, default=0.2, langKey = recurring)
+    val vOffset by double(max=0.4, default=0.1, langKey = recurring)
+    val size by double(min=0.75, max=2.5, default=1.4, langKey = recurring)
     val dense by boolean(false)
     val hideInternal by boolean(true)
-
-    val hOffset by double(0.2, min = 0.0, max = 0.4, langKey = recurring)
-    val vOffset by double(0.1, min = 0.0, max = 0.4, langKey = recurring)
-    val size by double(1.4, min = 0.75, max = 2.5, langKey = recurring)
+    val saturationThreshold by double(default=0.1, langKey = recurring)
 }
 
-class ShortGrassConfig(node: ConfigNode) : DelegatingConfigGroup(node), PopulationConfigData {
-    override val enabled by boolean(true, langKey = recurring)
+class ShortGrassConfig : PopulationConfigGroup() {
+    override val enabled by featureEnable()
+    val grassEnabled by boolean(true)
     val myceliumEnabled by boolean(true)
     val snowEnabled by boolean(true)
-    val hOffset by double(0.2, min = 0.0, max = 0.4, langKey = recurring)
-    val heightMin by double(0.6, min = 0.1, max = 2.5, langKey = recurring)
-    val heightMax by double(0.6, min = 0.1, max = 2.5, langKey = recurring) { it.coerceAtLeast(heightMin) }
-    val size by double(1.0, min = 0.5, max = 1.5, langKey = recurring)
-    override val population by population(64)
+    val hOffset by double(max=0.4, default=0.2, langKey = recurring)
+    val heightMin by double(min=0.1, max=2.5, default=0.6, langKey = recurring)
+    val heightMax by double(min=0.1, max=2.5, default=0.8, langKey = recurring)
+    val size by double(min=0.5, max=1.5, default=1.0, langKey = recurring)
+    override val population by integer(max=64, default=64, langKey = recurring)
     val useGenerated by boolean(false)
     val shaderWind by boolean(true, langKey = recurring)
-    val saturationThreshold by double(0.1, min = 0.0, max = 1.0)
+    val saturationThreshold by double(default=0.1, langKey = recurring)
 }
 
-class ConnectedGrassConfig(node: ConfigNode) : DelegatingConfigGroup(node) {
-    val enabled by boolean(true, langKey = recurring)
-    val snowEnabled by boolean(true)
+class ConnectedGrassConfig : DelegatingConfigGroup() {
+    val enabled by boolean(true)
+    val snowEnabled by boolean(false)
 }
 
-class RoundLogConfig(node: ConfigNode) : DelegatingConfigGroup(node) {
-    val enabled by boolean(true, langKey = recurring)
-
-    val defaultY by boolean(false)
+class RoundLogConfig : DelegatingConfigGroup() {
+    val enabled by featureEnable()
+    val plantsOnly by boolean(true)
+    val radiusSmall by double(max=0.5, default=0.25)
+    val radiusLarge by double(max=0.5, default=0.44)
+    val dimming by double(default = 0.7)
     val connectSolids by boolean(false)
     val lenientConnect by boolean(true)
     val connectPerpendicular by boolean(true)
     val connectGrass by boolean(true)
-
-    val radiusSmall by double(0.25, min = 0.0, max = 0.5)
-    val radiusLarge by double(0.25, min = 0.0, max = 0.5) { it.coerceAtLeast(radiusSmall) }
-    val dimming by double(0.7, min = 0.0, max = 1.0)
-    val zProtection by double(0.99, min = 0.9, max = 1.0)
+    val defaultY by boolean(false)
+    val zProtection by double(min = 0.9, default = 0.99)
 }
 
-class CactusConfig(node: ConfigNode) : DelegatingConfigGroup(node) {
-    val enabled by boolean(true, langKey = recurring)
-    val size by double(1.3, min = 0.5, max = 1.5, langKey = recurring)
-    val sizeVariation by double(0.1, min = 0.0, max = 0.5)
-    val hOffset by double(0.1, min = 0.0, max = 0.5, langKey = recurring)
+class CactusConfig : DelegatingConfigGroup() {
+    val enabled by featureEnable()
+    val size by double(min=0.5, max=1.5, default=0.8, langKey = recurring)
+    val sizeVariation by double(max=0.5, default=0.1)
+    val hOffset by double(max=0.5, default=0.1, langKey = recurring)
 }
 
-class LilypadConfig(node: ConfigNode) : DelegatingConfigGroup(node), PopulationConfigData {
-    override val enabled by boolean(true, langKey = recurring)
-    val hOffset by double(0.1, min = 0.0, max = 0.25, langKey = recurring)
-    override val population by population(16)
-}
-
-class ReedConfig(node: ConfigNode) : DelegatingConfigGroup(node), PopulationConfigData {
-    override val enabled by boolean(true, langKey = recurring)
-    val hOffset by double(0.2, min = 0.0, max = 0.4, langKey = recurring)
-    val heightMin by double(1.7, min = 1.5, max = 3.0, langKey = recurring)
-    val heightMax by double(2.2, min = 1.5, max = 3.0, langKey = recurring) { it.coerceAtLeast(heightMin) }
-    override val population by population(32)
-    val minBiomeTemp by double(0.4, min = 0.0, max = 2.0)
-    val minBiomeRainfall by double(0.4, min = 0.0, max = 1.0)
+class LilypadConfig : PopulationConfigGroup() {
+    override val enabled by featureEnable()
+    val hOffset by double(max=0.25, default=0.1, langKey = recurring)
+    override val population by integer(max=64, default=16, min=0, langKey = recurring)
     val shaderWind by boolean(true, langKey = recurring)
 }
 
-class AlgaeConfig(node: ConfigNode) : DelegatingConfigGroup(node), PopulationConfigData {
-    override val enabled by boolean(true, langKey = recurring)
-    val hOffset by double(0.1, min = 0.0, max = 0.4, langKey = recurring)
-    val size by double(1.0, min = 0.5, max = 1.5, langKey = recurring)
-    val heightMin by double(0.5, min = 0.1, max = 1.0, langKey = recurring)
-    val heightMax by double(0.5, min = 0.1, max = 1.0, langKey = recurring) { it.coerceAtLeast(heightMin) }
-    override val population by population(48)
+class ReedConfig : PopulationConfigGroup() {
+    override val enabled by featureEnable()
+    val hOffset by double(max=0.4, default=0.2, langKey = recurring)
+    val heightMin by double(min=1.5, max=3.5, default=1.7, langKey = recurring)
+    val heightMax by double(min=1.5, max=3.5, default=2.2, langKey = recurring)
+    override val population by integer(max=64, default=32, langKey = recurring)
+    val minBiomeTemp by double(default=0.4)
+    val minBiomeRainfall by double(default=0.4)
     val shaderWind by boolean(true, langKey = recurring)
 }
 
-class CoralConfig(node: ConfigNode) : DelegatingConfigGroup(node), PopulationConfigData {
-    override val enabled by boolean(true, langKey = recurring)
+class AlgaeConfig : PopulationConfigGroup() {
+    override val enabled by featureEnable()
+    val hOffset by double(max=0.25, default=0.1, langKey = recurring)
+    val size by double(min=0.5, max=1.5, default=1.0, langKey = recurring)
+    val heightMin by double(min=0.1, max=1.5, default=0.5, langKey = recurring)
+    val heightMax by double(min=0.1, max=1.5, default=1.0, langKey = recurring)
+    override val population by integer(max=64, default=48, langKey = recurring)
+    val shaderWind by boolean(true, langKey = recurring)
+}
+
+class CoralConfig : PopulationConfigGroup() {
+    override val enabled by featureEnable()
     val shallowWater by boolean(false)
-    val hOffset by double(0.2, min = 0.0, max = 0.4, langKey = recurring)
-    val vOffset by double(0.1, min = 0.0, max = 0.4, langKey = recurring)
-    val size by double(0.7, min = 0.5, max = 1.5, langKey = recurring)
-    val crustSize by double(1.4, min = 0.5, max = 1.5)
-    val chance by integer(32, min = 0, max = 64)
-    override val population by population(48)
+    val hOffset by double(max=0.4, default=0.2, langKey = recurring)
+    val vOffset by double(max=0.4, default=0.1, langKey = recurring)
+    val size by double(min=0.5, max=1.5, default=0.7, langKey = recurring)
+    val crustSize by double(min=0.5, max=1.5, default=1.4)
+    val chance by integer(max=64, default=32)
+    override val population by integer(max=64, default=48, langKey = recurring)
 }
 
-class NetherrackConfig(node: ConfigNode) : DelegatingConfigGroup(node) {
-    val enabled by boolean(true, langKey = recurring)
-    val hOffset by double(0.2, min = 0.0, max = 0.4, langKey = recurring)
-    val size by double(1.0, min = 0.5, max = 1.5, langKey = recurring)
-    val heightMin by double(0.6, min = 0.5, max = 1.5, langKey = recurring)
-    val heightMax by double(0.8, min = 0.5, max = 1.5, langKey = recurring) { it.coerceAtLeast(heightMin) }
+class NetherrackConfig : DelegatingConfigGroup() {
+    val enabled by featureEnable()
+    val hOffset by double(max=0.4, default=0.2, langKey = recurring)
+    val heightMin by double(min=0.1, max=1.5, default=0.6, langKey = recurring)
+    val heightMax by double(min=0.1, max=1.5, default=0.8, langKey = recurring)
+    val size by double(min=0.5, max=1.5, default=1.0, langKey = recurring)
 }
 
-class FallingLeavesConfig(node: ConfigNode) : DelegatingConfigGroup(node) {
-    val enabled by boolean(true, langKey = recurring)
-    val speed by double(0.05, min = 0.01, max = 0.15)
-    val windStrength by double(0.5, min = 0.1, max = 2.0)
-    val stormStrength by double(0.8, min = 0.1, max = 2.0) { it.coerceAtLeast(windStrength) }
-    val size by double(0.75, min = 0.25, max = 1.5)
-    val chance by double(0.05, min = 0.001, max = 1.0)
-    val perturb by double(0.25, min = 0.01, max = 1.0)
-    val lifetime by double(7.5, min = 1.0, max = 15.0)
+class FallingLeavesConfig : DelegatingConfigGroup() {
+    val enabled by featureEnable()
+    val speed by double(min=0.01, max=0.15, default=0.05)
+    val windStrength by double(min=0.1, max=2.0, default=0.5)
+    val stormStrength by double(min=0.1, max=2.0, default=0.8)
+    val size by double(min=0.25, max=1.5, default=0.75, langKey = recurring)
+    val chance by double(min=0.001, max=1.0, default=0.02)
+    val perturb by double(min=0.01, max=1.0, default=0.25)
+    val lifetime by double(min=1.0, max=15.0, default=5.0)
+    val opacityHack by boolean(true)
 }
 
-class RisingSoulConfig(node: ConfigNode) : DelegatingConfigGroup(node) {
-    val enabled by boolean(true, langKey = recurring)
-    val chance by double(0.02, min = 0.001, max = 1.0)
-    val perturb by double(0.05, min = 0.01, max = 0.25)
-    val headSize by double(1.0, min = 0.25, max = 1.5)
-    val trailSize by double(0.75, min = 0.25, max = 1.5)
-    val opacity by double(0.5, min = 0.05, max = 1.0)
-    val sizeDecay by double(0.97, min = 0.5, max = 1.0)
-    val opacityDecay by double(0.97, min = 0.5, max = 1.0)
-    val lifetime by double(4.0, min = 1.0, max = 15.0)
-    val trailLength by integer(48, min = 2, max = 128)
-    val trailDensity by integer(3, min = 1, max = 16)
+class RisingSoulConfig : DelegatingConfigGroup() {
+    val enabled by featureEnable()
+    val chance by double(min=0.001, max=1.0, default=0.02)
+    val perturb by double(min=0.01, max=0.25, default=0.05)
+    val headSize by double(min=0.25, max=1.5, default=1.0)
+    val trailSize by double(min=0.25, max=1.5, default=0.75)
+    val opacity by double(min=0.05, max=1.0, default=0.5)
+    val sizeDecay by double(min=0.5, max=1.0, default=0.97)
+    val opacityDecay by double(min=0.5, max=1.0, default=0.97)
+    val lifetime by double(min=1.0, max=15.0, default=4.0)
+    val trailLength by integer(min=2, max=128, default=48)
+    val trailDensity by integer(min=1, max=16, default=3)
 }

src/main/kotlin/mods/betterfoliage/config/MiscDefaults.kt

@@ -0,0 +1,13 @@
+package mods.betterfoliage.config
+
+import net.minecraft.block.BlockState
+import net.minecraft.block.Blocks
+import net.minecraft.block.material.Material
+import net.minecraft.world.biome.Biome
+
+val SALTWATER_BIOMES = listOf(Biome.Category.BEACH, Biome.Category.OCEAN)
+
+val SNOW_MATERIALS = listOf(Material.TOP_SNOW, Material.SNOW)
+val BlockState.isSnow: Boolean get() = material in SNOW_MATERIALS
+
+val ACCEPTED_ROUND_LOG_MATERIALS = listOf(Material.WOOD, Material.GRASS)

src/main/kotlin/mods/betterfoliage/config/match/Match.kt

@@ -0,0 +1,162 @@
+package mods.betterfoliage.config.match
+
+enum class MatchMethod {
+    EXACT_MATCH, EXTENDS, CONTAINS;
+
+    fun description(isSuccess: Boolean) = when (this) {
+        EXACT_MATCH -> if (isSuccess) "matches" else "does not match"
+        EXTENDS -> if (isSuccess) "extends" else "does not extend"
+        CONTAINS -> if (isSuccess) "contains" else "does not contain"
+    }
+}
+
+/**
+ * Basic Either monad implementation
+ */
+sealed class Either<out L, out R> {
+    class Left<L>(val left: L) : Either<L, Nothing>()
+    class Right<R>(val right: R) : Either<Nothing, R>()
+
+    fun leftOrNull() = if (this is Left) left else null
+    fun rightOrNull() = if (this is Right) right else null
+
+    fun <R2> map(func: (R) -> R2): Either<L, R2> = when (this) {
+        is Left<L> -> this
+        is Right<R> -> Right(func(right))
+    }
+
+    fun <L2> mapLeft(func: (L) -> L2): Either<L2, R> = when (this) {
+        is Left<L> -> Left(func(left))
+        is Right<R> -> this
+    }
+
+    fun ifRight(action: (R) -> Unit) {
+        if (this is Right) action(right)
+    }
+
+    companion object {
+        fun <L> ofLeft(left: L) = Left(left)
+        fun <R> ofRight(right: R) = Right(right)
+    }
+}
+
+// this cannot be inside the class for variance reasons
+fun <L, R, R2> Either<L, R>.flatMap(func: (R) -> Either<L, R2>) = when (this) {
+    is Either.Left<L> -> this
+    is Either.Right<R> -> func(right)
+}
+
+fun <L, R, L2> Either<L, R>.flatMapLeft(func: (L) -> Either<L2, R>) = when (this) {
+    is Either.Left<L> -> func(left)
+    is Either.Right<R> -> this
+}
+
+fun <T> Either<T, T>.flatten() = when (this) {
+    is Either.Left -> left
+    is Either.Right -> right
+}
+
+interface MAnything<out T> {
+    val value: T
+    val immutable: Boolean
+}
+
+class MListAll(val list: List<MAnything<Boolean>>) : MAnything<Boolean> {
+    override val value get() = list.all { it.value }
+    override val immutable get() = list.all { it.immutable }
+}
+
+class MListAny(val list: List<MValue<Boolean>>) : MAnything<Boolean> {
+    override val value get() = list.any { it.value }
+    override val immutable get() = list.all { it.immutable }
+}
+
+class MNegated(val inner: MAnything<Boolean>) : MAnything<Boolean> {
+    override val value get() = !inner.value
+    override val immutable get() = inner.immutable
+}
+
+/**
+ * Value with metadata related to rule matching applied.
+ *
+ * @param value the wrapped value
+ * @param description human-readable description of what the value represents
+ * @param configSource identifies where the value is described in the config
+ * @param immutable true if the value never changes
+ * (another [MValue] constructed in the same way will have the same value)
+ *
+ */
+class MValue<out T>(
+    override val value: T,
+    val description: String,
+    val configSource: ConfigSource,
+    override val immutable: Boolean,
+) : MAnything<T> {
+    companion object {
+        fun <T> right(value: T, description: String, configSource: ConfigSource, immutable: Boolean = true) =
+            Either.ofRight(MValue(value, description, configSource, immutable))
+
+        fun left(description: String, configSource: ConfigSource, immutable: Boolean = true) =
+            Either.ofLeft(MValue(false, description, configSource, immutable))
+    }
+}
+
+typealias MEither<T> = Either<MValue<Boolean>, MValue<T>>
+
+val Node.Value.asEither get() = MValue.right(value, value, configSource, true)
+fun Node.Value.left(description: String) = MValue.left(description, configSource)
+fun Node.invalidTypeFor(type: String) = MValue.left("invalid type for $type: [${this::class.java.name}]", configSource)
+fun Node.error(description: String) = MValue.left(description, configSource)
+
+fun <T, R> MEither<T>.mapValue(func: (T) -> R) = map {
+    MValue(func(it.value), it.description, it.configSource, it.immutable)
+}
+
+fun <T> MEither<T>.mapDescription(func: (MValue<T>) -> String) = map {
+    MValue(it.value, func(it), it.configSource, it.immutable)
+}
+
+fun <T, R> MEither<T>.map(
+    func: (T) -> R,
+    description: (MValue<T>, R) -> String
+) = map { t -> func(t.value).let { r -> MValue(r, description(t, r), t.configSource, t.immutable) } }
+
+fun <T, R> MEither<T>.mapNotNull(
+    func: (T) -> R?,
+    dLeft: (MValue<T>) -> String = { it.description },
+    dRight: (MValue<T>, R) -> String = { m, _ -> m.description }
+) = flatMap { t ->
+    func(t.value)?.let { r ->
+        MValue.right(r, dRight(t, r), t.configSource, t.immutable)
+    } ?: MValue.left(dLeft(t), t.configSource, t.immutable)
+}
+
+fun <T> MEither<T>.toRight(value: T) =
+    flatMapLeft { MValue.right(value, it.description, it.configSource, it.immutable) }
+
+data class MComparison<T1, T2>(
+    private val opTrue: String,
+    private val opFalse: String,
+    val testFunc: (T1, T2) -> Boolean
+) {
+    fun compare(value1: MEither<T1>, value2: MEither<T2>) = when {
+        value1 is Either.Left -> value1
+        value2 is Either.Left -> value2
+        else -> {
+            val isSuccess = testFunc((value1 as Either.Right).right.value, (value2 as Either.Right).right.value)
+            MValue.right(
+                isSuccess,
+                "${value1.right.description} ${if (isSuccess) opTrue else opFalse} ${value2.right.description}",
+                value2.right.configSource,
+                value1.right.immutable && value2.right.immutable
+            )
+        }
+    }.flatten()
+
+    companion object {
+        fun <T1, T2> of(matchMethod: MatchMethod, testFunc: (T1, T2) -> Boolean) =
+            MComparison(matchMethod.description(true), matchMethod.description(false), testFunc)
+
+        val equals = of(MatchMethod.EXACT_MATCH) { t1: Any, t2: Any -> t1 == t2 }
+    }
+}

src/main/kotlin/mods/betterfoliage/config/match/ParseTree.kt

@@ -0,0 +1,42 @@
+package mods.betterfoliage.config.match
+
+data class ConfigSource(
+    val configFile: String,
+    val line: Int,
+    val column: Int
+) {
+    override fun toString() = "$configFile @ R$line,C$column"
+}
+
+sealed class Node {
+    enum class MatchSource { BLOCK_CLASS, BLOCK_NAME, MODEL_LOCATION }
+    abstract val configSource: ConfigSource
+
+    class MatchValueList(
+        val matchSource: MatchSource,
+        val matchMethod: MatchMethod,
+        override val configSource: ConfigSource,
+        val values: List<Value>
+    ) : Node()
+
+    class MatchParam(
+        val name: String,
+        val values: List<Value>,
+        override val configSource: ConfigSource,
+    ) : Node()
+
+    class Negate(val node: Node) : Node() {
+        override val configSource get() = node.configSource
+    }
+
+    class SetParam(val name: String, val value: Value, override val configSource: ConfigSource) : Node()
+
+    class MatchAll(override val configSource: ConfigSource, val list: List<Node>) : Node()
+
+    abstract class Value(override val configSource: ConfigSource, val value: String) : Node() {
+        class Literal(configSource: ConfigSource, value: String) : Value(configSource, value)
+        class ClassOf(configSource: ConfigSource, value: String) : Value(configSource, value)
+        class Texture(configSource: ConfigSource, value: String) : Value(configSource, value)
+        class Tint(configSource: ConfigSource, value: String) : Value(configSource, value)
+    }
+}

src/main/kotlin/mods/betterfoliage/config/match/Rules.kt

@@ -0,0 +1,172 @@
+package mods.betterfoliage.config.match
+
+import mods.betterfoliage.config.match.MatchMethod.CONTAINS
+import mods.betterfoliage.config.match.MatchMethod.EXACT_MATCH
+import mods.betterfoliage.config.match.MatchMethod.EXTENDS
+import mods.betterfoliage.resource.discovery.RuleProcessingContext
+import mods.betterfoliage.util.findFirst
+import mods.betterfoliage.util.quoted
+import mods.betterfoliage.util.tryDefault
+import net.minecraft.client.renderer.model.BlockModel
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.registries.ForgeRegistries
+
+typealias PartialLocation = Pair<String?, String>
+
+object MatchRules {
+    fun visitRoot(ctx: RuleProcessingContext, node: Node.MatchAll): MListAll {
+        val results = mutableListOf<MAnything<Boolean>>()
+        for (rule in node.list) {
+            val result = mNode(ctx, rule)
+            results.add(result)
+            if (!result.value) break
+        }
+        return MListAll(results)
+    }
+
+    fun mNode(ctx: RuleProcessingContext, node: Node): MAnything<Boolean> = when(node) {
+        is Node.MatchValueList -> mMatchList(ctx, node)
+        is Node.MatchParam -> mParam(ctx, node)
+        is Node.SetParam -> mParamSet(ctx, node)
+        is Node.Negate -> mNegate(ctx, node)
+        else -> node.error("match type not implemented: ${node::class.java.name.quoted}").left
+    }
+
+    fun mNegate(ctx: RuleProcessingContext, node: Node.Negate) = MNegated(mNode(ctx, node.node))
+
+    fun mMatchList(ctx: RuleProcessingContext, node: Node.MatchValueList) = node.values.map { value ->
+        when (node.matchSource) {
+            Node.MatchSource.BLOCK_CLASS -> mBlockClass(ctx, node, value)
+            Node.MatchSource.BLOCK_NAME -> mBlockName(ctx, node, value)
+            Node.MatchSource.MODEL_LOCATION -> mModel(ctx, node, value)
+        }
+    }.let { MListAny(it) }
+
+    fun mBlockClass(ctx: RuleProcessingContext, node: Node.MatchValueList, value: Node.Value): MValue<Boolean> {
+        val blockClass = ctx.discovery.blockState.block::class.java.let {
+            MValue.right(it, "block class ${it.name.quoted}", node.configSource)
+        }
+        val target = when(value) {
+            is Node.Value.Literal -> value.asEither.mapNotNull(
+                func = { tryDefault(null) { Class.forName(it) }},
+                dLeft = { "missing class ${it.value}" },
+                dRight = { m, _ -> " class ${m.value}" }
+            )
+            is Node.Value.ClassOf -> value.asEither.mapValue(::ResourceLocation).mapNotNull(
+                func = { loc -> ForgeRegistries.BLOCKS.getValue(loc)?.let { it::class.java } },
+                dLeft = { "missing block ${it.value.toString().quoted}" },
+                dRight = { m, r -> "class ${r.name.quoted} of block ${m.value}" }
+            )
+            else -> value.invalidTypeFor("block class")
+        }
+        return when(node.matchMethod) {
+            EXACT_MATCH -> MComparison.equals.compare(blockClass, target)
+            EXTENDS -> classExtends.compare(blockClass, target)
+            CONTAINS -> node.error("invalid match type for block class: contains").left
+        }
+    }
+
+    fun mBlockName(ctx: RuleProcessingContext, node: Node.MatchValueList, value: Node.Value): MValue<Boolean> {
+        val blockName = MValue.right(ctx.discovery.blockState.block, "", node.configSource).mapNotNull(
+            func = { it.registryName }, dLeft = { "missing block name" }, dRight = { _, r -> "block name ${r.toString().quoted}" }
+        )
+        val target = when(value) {
+            is Node.Value.Literal -> value.asEither.map(::splitLocation, ::quoteString)
+            else -> value.invalidTypeFor("block name")
+        }
+        return when(node.matchMethod) {
+            EXACT_MATCH -> blockNameExact.compare(blockName, target)
+            CONTAINS -> blockNameContains.compare(blockName, target)
+            EXTENDS -> node.error("invalid match type for block name: extends").left
+        }
+    }
+
+    fun mModel(ctx: RuleProcessingContext, node: Node.MatchValueList, value: Node.Value): MValue<Boolean> {
+        val model = (ctx.discovery.getUnbaked() as? BlockModel)?.let {
+            MValue.right(it, "model ${it.name.quoted}", node.configSource)
+        } ?: node.error("unsupported model type: ${ctx.discovery.getUnbaked()::class.java.name.quoted}")
+
+        val target = when(value) {
+            is Node.Value.Literal -> value.asEither.map(::splitLocation, ::quoteString)
+            else -> value.invalidTypeFor("model")
+        }
+        val models = when(node.matchMethod) {
+            EXTENDS -> model.mapValue { ctx.discovery.loadHierarchy(it).ancestors() }
+            else -> model.mapValue { listOf(it) }
+        }
+        return when(node.matchMethod) {
+            EXACT_MATCH, EXTENDS -> anyModel(node.matchMethod, ::locationMatches)
+            CONTAINS -> anyModel(CONTAINS, ::locationContains)
+        }.compare(models, target)
+    }
+
+    fun mParam(ctx: RuleProcessingContext, node: Node.MatchParam) = node.values.map { value ->
+        val paramValue = ctx.params[node.name] ?.let {
+            MValue.right(it, "parameter ${node.name.quoted}", node.configSource, immutable = false)
+        } ?: node.error("missing parameter ${node.name.quoted}")
+
+        val target = when(value) {
+            is Node.Value.Literal -> value.asEither.mapDescription { it.description.quoted }
+            else -> value.invalidTypeFor("parameter")
+        }
+        MComparison.equals.compare(paramValue, target)
+    }.let { MListAny(it) }
+
+    fun mParamSet(ctx: RuleProcessingContext, node: Node.SetParam): MValue<Boolean> {
+        val target = when(node.value) {
+            is Node.Value.Literal -> node.value.asEither
+            is Node.Value.Texture -> when(val model = ctx.discovery.getUnbaked()) {
+                is BlockModel -> node.value.asEither.map(
+                    func = { model.getMaterial(it).texture().toString() },
+                    description = { m, r -> "texture \"${m.value}\" = \"$r\" of model ${model.name}"}
+                )
+                else -> node.error("unsupported model type: ${model::class.java.name.quoted}")
+            }
+            is Node.Value.Tint -> when(val model = ctx.discovery.getUnbaked()) {
+                is BlockModel -> node.value.asEither.mapNotNull(
+                    func = { model.tintOf(it)?.toString() },
+                    dRight = { m, r -> "tint index $r for sprite ${m.value}" },
+                    dLeft = { m -> "tint index -1 for unused sprite ${m.value}"}
+                ).toRight("-1")
+
+                else -> node.error("unsupported model type: ${model::class.java.name.quoted}")
+            }
+            else -> node.value.invalidTypeFor("prameter")
+        }
+        target.ifRight { ctx.params[node.name] = it.value }
+        return target.mapDescription { m -> "parameter ${node.name} set to ${m.value}" }.mapValue { true }.flatten()
+    }
+
+    private val classExtends = MComparison.of<Class<*>, Class<*>>(EXTENDS) { c1, c2 -> c2.isAssignableFrom(c1) }
+
+    private val blockNameExact = MComparison.of<ResourceLocation, PartialLocation>(EXACT_MATCH) { block, partial ->
+        locationMatches(block, partial)
+    }
+    private val blockNameContains = MComparison.of<ResourceLocation, Pair<String?, String>>(CONTAINS) { block, partial ->
+            locationContains(block, partial)
+    }
+    private fun anyModel(matchMethod: MatchMethod, func: (ResourceLocation, PartialLocation)->Boolean) =
+        MComparison.of<List<BlockModel>, PartialLocation>(matchMethod) { models, partial ->
+            models.any { func(ResourceLocation(it.name), partial) }
+        }
+
+
+    fun locationMatches(loc: ResourceLocation, partial: PartialLocation) =
+        (partial.first == null || loc.namespace == partial.first) && loc.path == partial.second
+    fun locationContains(loc: ResourceLocation, partial: PartialLocation) =
+        (partial.first == null || loc.namespace.contains(partial.first!!)) && loc.path.contains(partial.second)
+
+    fun splitLocation(str: String): PartialLocation =
+        if (str.contains(":")) ResourceLocation(str).let { it.namespace to it.path } else null to str
+
+    fun <T, R> quoteString(mValue: MValue<T>, newValue: R) = mValue.description.quoted
+
+    fun BlockModel.ancestors(): List<BlockModel> = if (parent == null) listOf(this) else parent!!.ancestors() + this
+
+    fun BlockModel.tintOf(spriteName: String) =
+        elements.findFirst { element ->
+            element.faces.entries.findFirst { (_, face) ->
+                if (face.texture == "#$spriteName") face.tintIndex else null
+            }
+        }
+}

src/main/kotlin/mods/betterfoliage/integration/ForestryIntegration.kt

@@ -1,110 +0,0 @@
-package mods.betterfoliage.integration
-
-/*
-val TextureLeaves = ClassRefOld<Any>("forestry.arboriculture.models.TextureLeaves")
-val TextureLeaves_leafTextures = FieldRefOld(TextureLeaves, "leafTextures", Map)
-val TextureLeaves_plain = FieldRefOld(TextureLeaves, "plain", Identifier)
-val TextureLeaves_fancy = FieldRefOld(TextureLeaves, "fancy", Identifier)
-val TextureLeaves_pollinatedPlain = FieldRefOld(TextureLeaves, "pollinatedPlain", Identifier)
-val TextureLeaves_pollinatedFancy = FieldRefOld(TextureLeaves, "pollinatedFancy", Identifier)
-
-
-val TileLeaves = ClassRefOld<Any>("forestry.arboriculture.tiles.TileLeaves")
-val TileLeaves_getLeaveSprite = MethodRefOld(TileLeaves, "getLeaveSprite", Identifier, boolean)
-val PropertyWoodType = ClassRefOld<Any>("forestry.arboriculture.blocks.PropertyWoodType")
-val IWoodType = ClassRefOld<Any>("forestry.api.arboriculture.IWoodType")
-val IWoodType_barkTex = MethodRefOld(IWoodType, "getBarkTexture", String)
-val IWoodType_heartTex = MethodRefOld(IWoodType, "getHeartTexture", String)
-
-val PropertyTreeType = ClassRefOld<Any>("forestry.arboriculture.blocks.PropertyTreeType")
-val IAlleleTreeSpecies = ClassRefOld<Any>("forestry.api.arboriculture.IAlleleTreeSpecies")
-val ILeafSpriteProvider = ClassRefOld<Any>("forestry.api.arboriculture.ILeafSpriteProvider")
-val TreeDefinition = ClassRefOld<Any>("forestry.arboriculture.genetics.TreeDefinition")
-
-val IAlleleTreeSpecies_getLeafSpriteProvider = MethodRefOld(IAlleleTreeSpecies, "getLeafSpriteProvider", ILeafSpriteProvider)
-val TreeDefinition_species = FieldRefOld(TreeDefinition, "species", IAlleleTreeSpecies)
-val ILeafSpriteProvider_getSprite = MethodRefOld(ILeafSpriteProvider, "getSprite", Identifier, boolean, boolean)
-
-object ForestryIntegration {
-    init {
-    }
-}
-
- */
-/*
-object ForestryLeafDiscovery : HasLogger, AsyncSpriteProvider<ModelLoader>, ModelRenderRegistry<LeafInfo> {
-    override val logger = BetterFoliage.logDetail
-    var idToValue = emptyMap<Identifier, LeafInfo>()
-
-    override fun get(state: BlockState, world: BlockView, pos: BlockPos): LeafInfo? {
-        // check variant property (used in decorative leaves)
-        state.entries.entries.find {
-            PropertyTreeType.isInstance(it.key) && TreeDefinition.isInstance(it.value)
-        } ?.let {
-            val species = it.value[TreeDefinition_species]!!
-            val spriteProvider = species[IAlleleTreeSpecies_getLeafSpriteProvider]()
-            val textureLoc = spriteProvider[ILeafSpriteProvider_getSprite](false, MinecraftClient.isFancyGraphicsEnabled())
-            return idToValue[textureLoc]
-        }
-
-        // extract leaf texture information from TileEntity
-        val tile = world.getBlockEntity(pos) ?: return null
-        if (!TileLeaves.isInstance(tile)) return null
-        val textureLoc = tile[TileLeaves_getLeaveSprite](MinecraftClient.isFancyGraphicsEnabled())
-        return idToValue[textureLoc]
-    }
-
-    override fun setup(manager: ResourceManager, bakeryF: CompletableFuture<ModelLoader>, atlasFuture: AtlasFuture): StitchPhases {
-        val futures = mutableMapOf<Identifier, CompletableFuture<LeafInfo>>()
-
-        return StitchPhases(
-            discovery = bakeryF.thenRunAsync {
-                val allLeaves = TextureLeaves_leafTextures.getStatic()
-                allLeaves!!.entries.forEach { (type, leaves) ->
-                    log("base leaf type $type")
-                    leaves!!
-                    listOf(
-                        leaves[TextureLeaves_plain], leaves[TextureLeaves_pollinatedPlain],
-                        leaves[TextureLeaves_fancy], leaves[TextureLeaves_pollinatedFancy]
-                    ).forEach { textureLocation ->
-                        futures[textureLocation!!] = defaultRegisterLeaf(textureLocation, atlasFuture)
-                    }
-                }
-            },
-            cleanup = atlasFuture.runAfter {
-                idToValue = futures.mapValues { it.value.get() }
-            }
-        )
-    }
-}
-
-object ForestryLogDiscovery : ModelDiscovery<ColumnTextureInfo>() {
-    override val logger = BetterFoliage.logDetail
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: AtlasFuture): CompletableFuture<ColumnTextureInfo>? {
-        // respect class list to avoid triggering on fences, stairs, etc.
-        if (!BetterFoliageMod.blockConfig.logBlocks.matchesClass(ctx.state.block)) return null
-
-        // find wood type property
-        val woodType = ctx.state.entries.entries.find {
-            PropertyWoodType.isInstance(it.key) && IWoodType.isInstance(it.value)
-        }
-        if (woodType != null) {
-            logger.log(Level.DEBUG, "ForestryLogRegistry: block state ${ctx.state}")
-            logger.log(Level.DEBUG, "ForestryLogRegistry:     variant ${woodType.value}")
-
-            // get texture names for wood type
-            val bark = woodType.value[IWoodType_barkTex]()
-            val heart = woodType.value[IWoodType_heartTex]()
-            logger.log(Level.DEBUG, "ForestryLogSupport:    textures [heart=$heart, bark=$bark]")
-
-            val heartSprite = atlas.sprite(heart)
-            val barkSprite = atlas.sprite(bark)
-            return atlas.mapAfter {
-                SimpleColumnInfo(AsyncLogDiscovery.getAxis(ctx.state), heartSprite.get(), heartSprite.get(), listOf(barkSprite.get()))
-            }
-        }
-        return null
-    }
-}
-
- */

src/main/kotlin/mods/betterfoliage/integration/ModMenu.kt

@@ -1,29 +0,0 @@
-package mods.betterfoliage.integration
-
-import io.github.prospector.modmenu.api.ModMenuApi
-import me.shedaniel.clothconfig2.api.ConfigBuilder
-import me.zeroeightsix.fiber.JanksonSettings
-import mods.betterfoliage.BetterFoliage
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.gui.screen.Screen
-import net.minecraft.client.resource.language.I18n
-import java.util.function.Function
-
-object ModMenu : ModMenuApi {
-    override fun getModId() = BetterFoliage.MOD_ID
-
-    override fun getConfigScreenFactory() = Function { screen: Screen ->
-        val builder = ConfigBuilder.create()
-            .setParentScreen(screen)
-            .setTitle(I18n.translate("betterfoliage.title"))
-        BetterFoliage.config.createClothNode(listOf("betterfoliage")).value.forEach { rootOption ->
-            builder.getOrCreateCategory("main").addEntry(rootOption)
-        }
-        builder.savingRunnable = Runnable {
-            JanksonSettings().serialize(BetterFoliage.config.fiberNode, BetterFoliage.configFile.outputStream(), false)
-            BetterFoliage.modelReplacer.invalidate()
-            MinecraftClient.getInstance().worldRenderer.reload()
-        }
-        builder.build()
-    }
-}

src/main/kotlin/mods/betterfoliage/integration/OptifineCustomColors.kt

@@ -0,0 +1,54 @@
+package mods.betterfoliage.integration
+
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.util.ThreadLocalDelegate
+import mods.betterfoliage.util.allAvailable
+import mods.betterfoliage.util.reflectField
+import mods.betterfoliage.BlockPos
+import mods.betterfoliage.BlockState
+import mods.betterfoliage.CustomColors
+import mods.betterfoliage.RenderEnv
+import net.minecraft.block.BlockState
+import net.minecraft.client.Minecraft
+import net.minecraft.client.renderer.model.BakedQuad
+import net.minecraft.util.Direction.UP
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.level.ColorResolver
+import org.apache.logging.log4j.Level.INFO
+import org.apache.logging.log4j.LogManager
+
+/**
+ * Integration for OptiFine custom block colors.
+ */
+@Suppress("UNCHECKED_CAST")
+object OptifineCustomColors {
+    val logger = LogManager.getLogger(this)
+
+    val isColorAvailable = allAvailable(CustomColors, CustomColors.getColorMultiplier)
+
+    init {
+        logger.log(INFO, "Optifine custom color support is ${if (isColorAvailable) "enabled" else "disabled" }")
+    }
+
+    val renderEnv by ThreadLocalDelegate { OptifineRenderEnv() }
+    val fakeQuad = BakedQuad(IntArray(0), 1, UP, null, true)
+
+    fun getBlockColor(ctx: BlockCtx, resolver: ColorResolver): Int {
+        val ofColor = if (isColorAvailable && Minecraft.getInstance().options.reflectField<Boolean>("ofCustomColors") == true) {
+            renderEnv.reset(ctx.state, ctx.pos)
+            CustomColors.getColorMultiplier.invokeStatic(fakeQuad, ctx.state, ctx.world, ctx.pos, renderEnv.wrapped) as? Int
+        } else null
+        return if (ofColor == null || ofColor == -1) ctx.color(resolver) else ofColor
+    }
+}
+
+class OptifineRenderEnv {
+    val wrapped: Any = RenderEnv.element!!.getDeclaredConstructor(BlockState.element, BlockPos.element).let {
+        it.isAccessible = true
+        it.newInstance(null, null)
+    }
+
+    fun reset(state: BlockState, pos: BlockPos) {
+        RenderEnv.reset.invoke(wrapped, state, pos)
+    }
+}

src/main/kotlin/mods/betterfoliage/integration/RubberIntegration.kt

@@ -1,139 +0,0 @@
-package mods.betterfoliage.integration
-
-
-object IC2RubberIntegration {
-
-//    val BlockRubWood = ClassRefOld<Any>("ic2.core.block.BlockRubWood")
-
-    init {
-//        if (ModList.get().isLoaded("ic2") && allAvailable(BlockRubWood)) {
-//            BetterFoliage.log(Level.INFO, "IC2 rubber support initialized")
-//            LogRegistry.registries.add(IC2LogDiscovery)
-//            BetterFoliage.blockSprites.providers.add(IC2LogDiscovery)
-//        }
-    }
-}
-
-object TechRebornRubberIntegration {
-
-//    val BlockRubberLog = ClassRefOld<Any>("techreborn.blocks.BlockRubberLog")
-
-    init {
-//        if (ModList.get().isLoaded("techreborn") && allAvailable(BlockRubberLog)) {
-//            BetterFoliage.log(Level.INFO, "TechReborn rubber support initialized")
-//            LogRegistry.registries.add(TechRebornLogDiscovery)
-//            BetterFoliage.blockSprites.providers.add(TechRebornLogDiscovery)
-//        }
-    }
-}
-
-/*
-class RubberLogInfo(
-    axis: Axis?,
-    val spotDir: Direction,
-    topTexture: Sprite,
-    bottomTexture: Sprite,
-    val spotTexture: Sprite,
-    sideTextures: List<Sprite>
-) : SimpleColumnInfo(axis, topTexture, bottomTexture, sideTextures) {
-
-    override val side: QuadIconResolver = { ctx: CombinedContext, idx: Int, quad: Quad ->
-        val worldFace = (if ((idx and 1) == 0) SOUTH else EAST).rotate(ctx.modelRotation)
-        if (worldFace == spotDir) spotTexture else {
-            val sideIdx = if (this.sideTextures.size > 1) (ctx.semiRandom(1) + dirToIdx[worldFace.ordinal]) % this.sideTextures.size else 0
-            this.sideTextures[sideIdx]
-        }
-    }
-}
-
-object IC2LogDiscovery : ModelDiscovery<ColumnTextureInfo>() {
-    override val logger = BetterFoliage.logDetail
-
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: AtlasFuture): CompletableFuture<ColumnTextureInfo>? {
-        // check for proper block class, existence of ModelBlock, and "state" blockstate property
-        if (!IC2RubberIntegration.BlockRubWood.isInstance(ctx.state.block)) return null
-        val blockLoc = ctx.models.firstOrNull() as Pair<JsonUnbakedModel, Identifier> ?: return null
-        val type = ctx.state.entries.entries.find { it.key.getName() == "state" }?.value?.toString() ?: return null
-
-        // logs with no rubber spot
-        if (blockLoc.derivesFrom(Identifier("block/cube_column"))) {
-            val axis = when(type) {
-                "plain_y" -> Axis.Y
-                "plain_x" -> Axis.X
-                "plain_z" -> Axis.Z
-                else -> null
-            }
-            val textureNames = listOf("end", "side").map { blockLoc.first.resolveTexture(it) }
-            if (textureNames.any { it == "missingno" }) return null
-            log("IC2LogSupport: block state ${ctx.state.toString()}")
-            log("IC2LogSupport:             axis=$axis, end=${textureNames[0]}, side=${textureNames[1]}")
-            val endSprite = atlas.sprite(textureNames[0])
-            val sideSprite = atlas.sprite(textureNames[1])
-            return atlas.mapAfter {
-                SimpleColumnInfo(axis, endSprite.get(), endSprite.get(), listOf(sideSprite.get()))
-            }
-        }
-
-        // logs with rubber spot
-        val spotDir = when(type) {
-            "dry_north", "wet_north" -> NORTH
-            "dry_south", "wet_south" -> SOUTH
-            "dry_west", "wet_west" -> WEST
-            "dry_east", "wet_east" -> EAST
-            else -> null
-        }
-        val textureNames = listOf("up", "down", "north", "south").map { blockLoc.first.resolveTexture(it) }
-        if (textureNames.any { it == "missingno" }) return null
-        log("IC2LogSupport: block state ${ctx.state.toString()}")
-        log("IC2LogSupport:             spotDir=$spotDir, up=${textureNames[0]}, down=${textureNames[1]}, side=${textureNames[2]}, spot=${textureNames[3]}")
-        val upSprite = atlas.sprite(textureNames[0])
-        val downSprite = atlas.sprite(textureNames[1])
-        val sideSprite = atlas.sprite(textureNames[2])
-        val spotSprite = atlas.sprite(textureNames[3])
-        return if (spotDir != null) atlas.mapAfter {
-            RubberLogInfo(Axis.Y, spotDir, upSprite.get(), downSprite.get(), spotSprite.get(), listOf(sideSprite.get()))
-        } else atlas.mapAfter {
-            SimpleColumnInfo(Axis.Y, upSprite.get(), downSprite.get(), listOf(sideSprite.get()))
-        }
-    }
-}
-
-object TechRebornLogDiscovery : ModelDiscovery<ColumnTextureInfo>() {
-    override val logger = BetterFoliage.logDetail
-
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: AtlasFuture): CompletableFuture<ColumnTextureInfo>? {
-        // check for proper block class, existence of ModelBlock
-        if (!TechRebornRubberIntegration.BlockRubberLog.isInstance(ctx.state.block)) return null
-        val blockLoc = ctx.models.map { it as? Pair<JsonUnbakedModel, Identifier> }.firstOrNull() ?: return null
-
-        val hasSap = ctx.state.entries.entries.find { it.key.getName() == "hassap" }?.value as? Boolean ?: return null
-        val sapSide = ctx.state.entries.entries.find { it.key.getName() == "sapside" }?.value as? Direction ?: return null
-
-        log("$logName: block state ${ctx.state}")
-        if (hasSap) {
-            val textureNames = listOf("end", "side", "sapside").map { blockLoc.first.resolveTexture(it) }
-            log("$logName:             spotDir=$sapSide, end=${textureNames[0]}, side=${textureNames[2]}, spot=${textureNames[3]}")
-            if (textureNames.all { it != "missingno" }) {
-                val endSprite = atlas.sprite(textureNames[0])
-                val sideSprite = atlas.sprite(textureNames[1])
-                val sapSprite = atlas.sprite(textureNames[2])
-                return atlas.mapAfter {
-                    RubberLogInfo(Axis.Y, sapSide, endSprite.get(), endSprite.get(), sapSprite.get(), listOf(sideSprite.get()))
-                }
-            }
-        } else {
-            val textureNames = listOf("end", "side").map { blockLoc.first.resolveTexture(it) }
-            log("$logName:             end=${textureNames[0]}, side=${textureNames[1]}")
-            if (textureNames.all { it != "missingno" }) {
-                val endSprite = atlas.sprite(textureNames[0])
-                val sideSprite = atlas.sprite(textureNames[1])
-                return atlas.mapAfter {
-                    SimpleColumnInfo(Axis.Y, endSprite.get(), endSprite.get(), listOf(sideSprite.get()))
-                }
-            }
-        }
-        return null
-    }
-}
-
- */

src/main/kotlin/mods/betterfoliage/integration/ShadersModIntegration.kt

@@ -0,0 +1,98 @@
+package mods.betterfoliage.integration
+
+import mods.betterfoliage.BetterFoliage
+import mods.betterfoliage.BlockAliases
+import mods.betterfoliage.BufferBuilder_sVertexBuilder
+import mods.betterfoliage.SVertexBuilder
+import mods.betterfoliage.Shaders
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.render.pipeline.RenderCtxVanilla
+import mods.betterfoliage.util.HasLogger
+import mods.betterfoliage.util.allAvailable
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.mapArray
+import net.minecraft.block.BlockRenderType
+import net.minecraft.block.BlockRenderType.MODEL
+import net.minecraft.block.BlockState
+import net.minecraft.block.Blocks
+import net.minecraft.client.renderer.BufferBuilder
+import net.minecraft.util.Direction
+import net.minecraft.util.Direction.DOWN
+import net.minecraft.util.Direction.EAST
+import net.minecraft.util.Direction.NORTH
+import net.minecraft.util.Direction.SOUTH
+import net.minecraft.util.Direction.WEST
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraftforge.client.model.pipeline.LightUtil
+import org.apache.logging.log4j.Level.INFO
+
+/**
+ * Integration for ShadersMod.
+ */
+object ShadersModIntegration : HasLogger() {
+    @JvmStatic val isEffectsAvailable = allAvailable(SVertexBuilder.pushState, SVertexBuilder.popState, BlockAliases.getAliasBlockId)
+    @JvmStatic val isDiffuseAvailable = allAvailable(Shaders.shaderPackLoaded, Shaders.blockLightLevel05, Shaders.blockLightLevel06, Shaders.blockLightLevel08)
+
+    @JvmStatic val defaultLeaves = Blocks.OAK_LEAVES.defaultBlockState()
+    @JvmStatic val defaultGrass = Blocks.GRASS.defaultBlockState()
+
+    @JvmStatic var diffuseShades = Direction.values().mapArray { LightUtil.diffuseLight(it) }
+
+    /**
+     * Called from transformed ShadersMod code.
+     * @see mods.betterfoliage.loader.BetterFoliageTransformer
+     */
+    @JvmStatic fun getBlockStateOverride(state: BlockState, world: IBlockDisplayReader, pos: BlockPos): BlockState {
+        if (state in BetterFoliage.blockTypes.leaf) return defaultLeaves
+//        if (BlockConfig.crops.matchesClass(state.block)) return defaultGrass
+        return state
+    }
+
+    init {
+        logger.log(INFO, "ShadersMod diffuse shading integration is ${if (isDiffuseAvailable) "enabled" else "disabled" }")
+        logger.log(INFO, "ShadersMod vertex shader integration is ${if (isEffectsAvailable) "enabled" else "disabled" }")
+
+        // Recalculate the diffuse shading values used when resources are reloaded
+        if (isDiffuseAvailable) BetterFoliage.modelManager.onInvalidate {
+            if (Shaders.shaderPackLoaded.getStatic()) {
+                diffuseShades = Direction.values().mapArray { face ->
+                    when(face) {
+                        DOWN -> Shaders.blockLightLevel05.getStatic()
+                        WEST, EAST -> Shaders.blockLightLevel06.getStatic()
+                        NORTH, SOUTH -> Shaders.blockLightLevel08.getStatic()
+                        else -> LightUtil.diffuseLight(face)
+                    }
+                }
+            } else {
+                diffuseShades = Direction.values().mapArray { LightUtil.diffuseLight(it) }
+            }
+        }
+    }
+
+    /** Quads rendered inside this block will use the given block entity data in shader programs. */
+    inline fun renderAs(buffer: BufferBuilder, state: BlockState, renderType: BlockRenderType, enabled: Boolean = true, func: ()->Unit) {
+        if (isEffectsAvailable && enabled) {
+            val aliasBlockId = BlockAliases.getAliasBlockId.invokeStatic(state)
+            val sVertexBuilder = buffer[BufferBuilder_sVertexBuilder]
+            SVertexBuilder.pushState.invoke(sVertexBuilder, aliasBlockId)
+            func()
+            SVertexBuilder.popState.invoke(sVertexBuilder)
+        } else {
+            func()
+        }
+    }
+
+    /** Quads rendered inside this block will behave as tallgrass blocks in shader programs. */
+    inline fun grass(ctx: RenderCtxBase, enabled: Boolean = true, func: ()->Unit) =
+        ((ctx as? RenderCtxVanilla)?.buffer as? BufferBuilder)?.let { bufferBuilder ->
+            renderAs(bufferBuilder, defaultGrass, MODEL, enabled, func)
+        }
+
+
+    /** Quads rendered inside this block will behave as leaf blocks in shader programs. */
+    inline fun leaves(ctx: RenderCtxBase, enabled: Boolean = true, func: ()->Unit) =
+        ((ctx as? RenderCtxVanilla)?.buffer as? BufferBuilder)?.let { bufferBuilder ->
+            renderAs(bufferBuilder, defaultLeaves, MODEL, enabled, func)
+        }
+}

src/main/kotlin/mods/betterfoliage/model/HalfBaked.kt

@@ -0,0 +1,133 @@
+package mods.betterfoliage.model
+
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.render.pipeline.WrappedLayerPredicate
+import mods.betterfoliage.render.pipeline.layerPredicate
+import mods.betterfoliage.resource.discovery.ModelBakingContext
+import mods.betterfoliage.resource.discovery.ModelBakingKey
+import mods.betterfoliage.util.Double3
+import mods.betterfoliage.util.HasLogger
+import mods.betterfoliage.util.directionsAndNull
+import mods.betterfoliage.util.mapArray
+import net.minecraft.block.Block
+import net.minecraft.block.BlockState
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.RenderTypeLookup
+import net.minecraft.client.renderer.model.BakedQuad
+import net.minecraft.client.renderer.model.IBakedModel
+import net.minecraft.client.renderer.model.SimpleBakedModel
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats
+import net.minecraft.client.renderer.vertex.VertexFormatElement
+import net.minecraftforge.client.model.pipeline.BakedQuadBuilder
+import java.util.Random
+
+/**
+ * Hybrid baked quad implementation, carrying both baked and unbaked information.
+ * Used to do advanced vertex lighting without unbaking vertex data at lighting time.
+ */
+data class HalfBakedQuad(
+    val raw: Quad,
+    val baked: BakedQuad
+)
+
+open class HalfBakedSimpleModelWrapper(baseModel: SimpleBakedModel): IBakedModel by baseModel, SpecialRenderModel {
+    val baseQuads = baseModel.unbakeQuads()
+
+    override fun prepare(ctx: BlockCtx, random: Random) = Unit
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        // if the passed data is a BlockState, render on the same layer(s) as that block
+        val testState = (data as? BlockState) ?: ctx.state
+
+        // this could get called for more layers than the underlying model is on
+        // ignore extra decoration layers
+        val shouldRender = when(val predicate = testState.block.layerPredicate) {
+            is WrappedLayerPredicate -> predicate.original.test(layer)
+            else -> RenderTypeLookup.canRenderInLayer(testState, layer)
+        }
+        if (shouldRender) ctx.renderQuads(baseQuads)
+    }
+}
+
+open class HalfBakedSpecialWrapper(val baseModel: SpecialRenderModel): SpecialRenderModel by baseModel {
+}
+
+abstract class HalfBakedWrapperKey : ModelBakingKey, HasLogger() {
+    override fun bake(ctx: ModelBakingContext): IBakedModel? {
+        val baseModel = super.bake(ctx)
+        val halfBaked = when(baseModel) {
+            is SimpleBakedModel -> HalfBakedSimpleModelWrapper(baseModel)
+            else -> null
+        }
+        return if (halfBaked == null) baseModel else bake(ctx, halfBaked)
+    }
+
+    abstract fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel): SpecialRenderModel
+}
+
+fun List<Quad>.bake(applyDiffuseLighting: Boolean) = map { quad ->
+    if (quad.sprite == null) throw IllegalStateException("Quad must have a texture assigned before baking")
+    val builder = BakedQuadBuilder(quad.sprite)
+    builder.setApplyDiffuseLighting(applyDiffuseLighting)
+    builder.setQuadOrientation(quad.face())
+    builder.setQuadTint(quad.colorIndex)
+    quad.verts.forEach { vertex ->
+        DefaultVertexFormats.BLOCK.elements.forEachIndexed { idx, element ->
+            when {
+                element.usage == VertexFormatElement.Usage.POSITION -> builder.put(idx,
+                    (vertex.xyz.x + 0.5).toFloat(),
+                    (vertex.xyz.y + 0.5).toFloat(),
+                    (vertex.xyz.z + 0.5).toFloat(),
+                    1.0f
+                )
+                // don't fill lightmap UV coords
+                element.usage == VertexFormatElement.Usage.UV && element.type == VertexFormatElement.Type.FLOAT -> builder.put(idx,
+                    quad.sprite.u0 + (quad.sprite.u1 - quad.sprite.u0) * (vertex.uv.u + 0.5).toFloat(),
+                    quad.sprite.v0 + (quad.sprite.v1 - quad.sprite.v0) * (vertex.uv.v + 0.5).toFloat(),
+                    0.0f, 1.0f
+                )
+                element.usage == VertexFormatElement.Usage.COLOR -> builder.put(idx,
+                    (vertex.color.red and 255).toFloat() / 255.0f,
+                    (vertex.color.green and 255).toFloat() / 255.0f,
+                    (vertex.color.blue and 255).toFloat() / 255.0f,
+                    (vertex.color.alpha and 255).toFloat() / 255.0f
+                )
+                element.usage == VertexFormatElement.Usage.NORMAL -> builder.put(idx,
+                    (vertex.normal ?: quad.normal).x.toFloat(),
+                    (vertex.normal ?: quad.normal).y.toFloat(),
+                    (vertex.normal ?: quad.normal).z.toFloat(),
+                    0.0f
+                )
+                else -> builder.put(idx)
+            }
+        }
+    }
+    HalfBakedQuad(quad, builder.build())
+}
+
+fun Array<List<Quad>>.bake(applyDiffuseLighting: Boolean) = mapArray { it.bake(applyDiffuseLighting) }
+
+fun BakedQuad.unbake(): HalfBakedQuad {
+    val size = DefaultVertexFormats.BLOCK.integerSize
+    val verts = Array(4) { vIdx ->
+        val x = java.lang.Float.intBitsToFloat(vertices[vIdx * size + 0]) - 0.5f
+        val y = java.lang.Float.intBitsToFloat(vertices[vIdx * size + 1]) - 0.5f
+        val z = java.lang.Float.intBitsToFloat(vertices[vIdx * size + 2]) - 0.5f
+        val color = vertices[vIdx * size + 3]
+        val u = java.lang.Float.intBitsToFloat(vertices[vIdx * size + 4])
+        val v = java.lang.Float.intBitsToFloat(vertices[vIdx * size + 5])
+        Vertex(Double3(x, y, z), UV(u.toDouble(), v.toDouble()), Color(color))
+    }
+    val unbaked = Quad(
+        verts[0], verts[1], verts[2], verts[3],
+        colorIndex = if (isTinted) tintIndex else -1,
+        face = direction
+    )
+    return HalfBakedQuad(unbaked, this)
+}
+
+fun SimpleBakedModel.unbakeQuads() = directionsAndNull.flatMap { face ->
+    getQuads(null, face, Random()).map { it.unbake() }
+}
+

src/main/kotlin/mods/betterfoliage/model/Quads.kt

@@ -0,0 +1,218 @@
+package mods.betterfoliage.model
+
+import mods.betterfoliage.util.Double3
+import mods.betterfoliage.util.Rotation
+import mods.betterfoliage.util.boxFaces
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.minmax
+import mods.betterfoliage.util.nearestAngle
+import mods.betterfoliage.util.rotate
+import mods.betterfoliage.util.times
+import mods.betterfoliage.util.vec
+import net.minecraft.client.renderer.texture.NativeImage
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.util.Direction
+import java.lang.Math.max
+import java.lang.Math.min
+import java.util.Random
+import kotlin.math.cos
+import kotlin.math.sin
+
+/**
+ * Vertex UV coordinates
+ *
+ * Zero-centered: coordinates fall between (-0.5, 0.5) (inclusive)
+ */
+data class UV(val u: Double, val v: Double) {
+    companion object {
+        val topLeft = UV(-0.5, -0.5)
+        val topRight = UV(0.5, -0.5)
+        val bottomLeft = UV(-0.5, 0.5)
+        val bottomRight = UV(0.5, 0.5)
+    }
+
+    val rotate: UV get() = UV(v, -u)
+
+    fun rotate(n: Int) = when (n % 4) {
+        0 -> copy()
+        1 -> UV(v, -u)
+        2 -> UV(-u, -v)
+        else -> UV(-v, u)
+    }
+
+    fun clamp(minU: Double = -0.5, maxU: Double = 0.5, minV: Double = -0.5, maxV: Double = 0.5) =
+        UV(u.minmax(minU, maxU), v.minmax(minV, maxV))
+
+    fun mirror(mirrorU: Boolean, mirrorV: Boolean) = UV(if (mirrorU) -u else u, if (mirrorV) -v else v)
+}
+
+/**
+ * Model vertex
+ *
+ * @param[xyz] x, y, z coordinates
+ * @param[uv] u, v coordinates
+ * @param[aoShader] [ModelLighter] instance to use with AO rendering
+ * @param[flatShader] [ModelLighter] instance to use with non-AO rendering
+ */
+data class Vertex(
+    val xyz: Double3 = Double3(0.0, 0.0, 0.0),
+    val uv: UV = UV(0.0, 0.0),
+    val color: Color = Color.white,
+    val normal: Double3? = null
+)
+
+data class Color(val alpha: Int, val red: Int, val green: Int, val blue: Int) {
+    constructor(combined: Int) : this(
+        combined shr 24 and 255,
+        combined shr 16 and 255,
+        combined shr 8 and 255,
+        combined and 255
+    )
+
+    val asInt get() = (alpha shl 24) or (red shl 16) or (green shl 8) or blue
+    val asHSB get() = HSB.fromColor(this)
+
+    operator fun times(f: Float) = Color(
+        alpha,
+        (f * red.toFloat()).toInt().coerceIn(0 until 256),
+        (f * green.toFloat()).toInt().coerceIn(0 until 256),
+        (f * blue.toFloat()).toInt().coerceIn(0 until 256)
+    )
+
+    companion object {
+        val white get() = Color(255, 255, 255, 255)
+    }
+}
+
+data class HSB(var hue: Float, var saturation: Float, var brightness: Float) {
+    companion object {
+        /** Red is assumed to be LSB, see [NativeImage.PixelFormat.RGBA] */
+        fun fromColorRGBA(color: Int): HSB {
+            val hsbVals = java.awt.Color.RGBtoHSB(color and 255, (color shr 8) and 255, (color shr 16) and 255, null)
+            return HSB(hsbVals[0], hsbVals[1], hsbVals[2])
+        }
+        fun fromColorBGRA(color: Int): HSB {
+            val hsbVals = java.awt.Color.RGBtoHSB((color shr 16) and 255, (color shr 8) and 255, color and 255, null)
+            return HSB(hsbVals[0], hsbVals[1], hsbVals[2])
+        }
+        fun fromColor(color: Color): HSB {
+            val hsbVals = java.awt.Color.RGBtoHSB(color.red, color.green, color.blue, null)
+            return HSB(hsbVals[0], hsbVals[1], hsbVals[2])
+        }
+    }
+    val asInt: Int get() = java.awt.Color.HSBtoRGB(hue, saturation, brightness)
+    val asColor: Color get() = Color(asInt)
+}
+
+/**
+ * Intermediate representation of model quad
+ * Immutable, double-precision
+ * Zero-centered (both XYZ and UV) coordinates for simpler rotation/mirroring
+ */
+data class Quad(
+    val v1: Vertex, val v2: Vertex, val v3: Vertex, val v4: Vertex,
+    val sprite: TextureAtlasSprite? = null,
+    val colorIndex: Int = -1,
+    val face: Direction? = null
+) {
+    val verts = arrayOf(v1, v2, v3, v4)
+
+    inline fun transformV(trans: (Vertex) -> Vertex): Quad = transformVI { vertex, idx -> trans(vertex) }
+    inline fun transformVI(trans: (Vertex, Int) -> Vertex): Quad = copy(
+        v1 = trans(v1, 0), v2 = trans(v2, 1), v3 = trans(v3, 2), v4 = trans(v4, 3)
+    )
+
+    val normal: Double3 get() = (v2.xyz - v1.xyz).cross(v4.xyz - v1.xyz).normalize
+
+    fun move(trans: Double3) = transformV { it.copy(xyz = it.xyz + trans) }
+    fun move(trans: Pair<Double, Direction>) = move(Double3(trans.second) * trans.first)
+    fun scale(scale: Double) = transformV { it.copy(xyz = it.xyz * scale) }
+    fun scale(scale: Double3) =
+        transformV { it.copy(xyz = Double3(it.xyz.x * scale.x, it.xyz.y * scale.y, it.xyz.z * scale.z)) }
+
+    fun rotate(rot: Rotation) =
+        transformV { it.copy(xyz = it.xyz.rotate(rot), normal = it.normal?.rotate(rot)) }.copy(face = face?.rotate(rot))
+
+    fun rotateZ(angle: Double) = transformV {
+        it.copy(
+            xyz = Double3(
+                it.xyz.x * cos(angle) + it.xyz.z * sin(angle),
+                it.xyz.y,
+                it.xyz.z * cos(angle) - it.xyz.x * sin(angle)
+            ),
+            normal = it.normal?.let { normal ->
+                Double3(
+                    normal.x * cos(angle) + normal.z * sin(angle),
+                    normal.y,
+                    normal.z * cos(angle) - normal.x * sin(angle)
+                )
+            }
+        )
+    }
+
+    fun scaleUV(scale: Double) = transformV { it.copy(uv = UV(it.uv.u * scale, it.uv.v * scale)) }
+    fun rotateUV(n: Int) = transformV { it.copy(uv = it.uv.rotate(n)) }
+    fun clampUV(minU: Double = -0.5, maxU: Double = 0.5, minV: Double = -0.5, maxV: Double = 0.5) =
+        transformV { it.copy(uv = it.uv.clamp(minU, maxU, minV, maxV)) }
+    fun mirrorUV(mirrorU: Boolean, mirrorV: Boolean) = transformV { it.copy(uv = it.uv.mirror(mirrorU, mirrorV)) }
+    fun scrambleUV(random: Random, canFlipU: Boolean, canFlipV: Boolean, canRotate: Boolean) = this
+        .mirrorUV(canFlipU && random.nextBoolean(), canFlipV && random.nextBoolean())
+        .let { if (canRotate) it.rotateUV(random.nextInt(4)) else it }
+
+    fun sprite(sprite: TextureAtlasSprite) = copy(sprite = sprite)
+    fun color(color: Color) = transformV { it.copy(color = color) }
+    fun color(color: Int) = transformV { it.copy(color = Color(color)) }
+    fun colorIndex(colorIndex: Int) = copy(colorIndex = colorIndex)
+    fun colorAndIndex(color: Color?) = color(color ?: Color.white).colorIndex(if (color == null) 0 else -1)
+
+    fun face() = face ?: nearestAngle(normal, Direction.values().toList()) { it.vec }.first
+
+    val flipped: Quad get() = Quad(v4, v3, v2, v1, sprite, colorIndex)
+    fun cycleVertices(n: Int) = when (n % 4) {
+        1 -> Quad(v2, v3, v4, v1)
+        2 -> Quad(v3, v4, v1, v2)
+        3 -> Quad(v4, v1, v2, v3)
+        else -> this.copy()
+    }
+
+    companion object {
+        fun mix(first: Quad, second: Quad, vertexFactory: (Vertex, Vertex) -> Vertex) = Quad(
+            v1 = vertexFactory(first.v1, second.v1),
+            v2 = vertexFactory(first.v2, second.v2),
+            v3 = vertexFactory(first.v3, second.v3),
+            v4 = vertexFactory(first.v4, second.v4)
+        )
+
+        fun verticalRectangle(x1: Double, z1: Double, x2: Double, z2: Double, yBottom: Double, yTop: Double) = Quad(
+            Vertex(Double3(x1, yBottom, z1), UV.bottomLeft),
+            Vertex(Double3(x2, yBottom, z2), UV.bottomRight),
+            Vertex(Double3(x2, yTop, z2), UV.topRight),
+            Vertex(Double3(x1, yTop, z1), UV.topLeft)
+        )
+
+        fun horizontalRectangle(x1: Double, z1: Double, x2: Double, z2: Double, y: Double): Quad {
+            val xMin = min(x1, x2);
+            val xMax = max(x1, x2)
+            val zMin = min(z1, z2);
+            val zMax = max(z1, z2)
+            return Quad(
+                Vertex(Double3(xMin, y, zMin), UV.topLeft),
+                Vertex(Double3(xMin, y, zMax), UV.bottomLeft),
+                Vertex(Double3(xMax, y, zMax), UV.bottomRight),
+                Vertex(Double3(xMax, y, zMin), UV.topRight)
+            )
+        }
+
+        fun faceQuad(face: Direction): Quad {
+            val base = face.vec * 0.5
+            val top = boxFaces[face].top * 0.5
+            val left = boxFaces[face].left * 0.5
+            return Quad(
+                Vertex(base + top + left, UV.topLeft),
+                Vertex(base - top + left, UV.bottomLeft),
+                Vertex(base - top - left, UV.bottomRight),
+                Vertex(base + top - left, UV.topRight)
+            )
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/model/SpecialRenderModels.kt

@@ -0,0 +1,57 @@
+package mods.betterfoliage.model
+
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.client.renderer.model.IBakedModel
+import net.minecraft.client.renderer.model.WeightedBakedModel
+import net.minecraft.util.WeightedRandom
+import java.util.Random
+
+/**
+ * Model that makes use of advanced rendering features.
+ */
+interface SpecialRenderModel : IBakedModel {
+    /**
+     * Create custom renderdata object. Called once per block. Result is passed to renderLayer().
+     */
+    fun prepare(ctx: BlockCtx, random: Random): Any
+    fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType)
+
+    /**
+     * Get the actual model that will be rendered. Useful for container models (like [WeightedBakedModel]).
+     */
+    fun resolve(random: Random) = this
+}
+
+interface SpecialRenderData {
+    fun canRenderInLayer(layer: RenderType) = false
+}
+
+class WeightedModelWrapper(
+    val models: List<WeightedModel>, baseModel: SpecialRenderModel
+) : IBakedModel by baseModel, SpecialRenderModel {
+    class WeightedModel(val model: SpecialRenderModel, weight: Int) : WeightedRandom.Item(weight)
+
+    val totalWeight = models.sumBy { it.weight }
+
+    fun getModel(random: Random) = WeightedRandom.getWeightedItem(models, random.nextInt(totalWeight))
+
+    override fun resolve(random: Random) = getModel(random).model.resolve(random)
+
+    override fun prepare(ctx: BlockCtx, random: Random) = getModel(random).model.let { actual ->
+        WeightedRenderData(actual, actual.prepare(ctx, random))
+    }
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) = when (data) {
+        is WeightedRenderData -> data.model.renderLayer(ctx, data.modelRenderData, layer)
+        else -> getModel(ctx.random).model.renderLayer(ctx, data, layer)
+    }
+}
+
+data class WeightedRenderData(
+    val model: SpecialRenderModel,
+    val modelRenderData: Any
+) : SpecialRenderData {
+    override fun canRenderInLayer(layer: RenderType) = (modelRenderData as? SpecialRenderData)?.canRenderInLayer(layer) ?: false
+}

src/main/kotlin/mods/betterfoliage/model/SpriteSets.kt

@@ -0,0 +1,83 @@
+package mods.betterfoliage.model
+
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.resourceManager
+import net.minecraft.client.renderer.texture.MissingTextureSprite
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.client.event.TextureStitchEvent
+import net.minecraftforge.eventbus.api.SubscribeEvent
+import kotlin.properties.ReadOnlyProperty
+import kotlin.reflect.KProperty
+
+interface SpriteSet {
+    val num: Int
+    operator fun get(idx: Int): TextureAtlasSprite
+}
+
+class FixedSpriteSet(val sprites: List<TextureAtlasSprite>) : SpriteSet {
+    override val num = sprites.size
+    override fun get(idx: Int) = sprites[idx % num]
+}
+
+class SpriteDelegate(val atlas: Atlas, val idFunc: () -> ResourceLocation) : ReadOnlyProperty<Any, TextureAtlasSprite> {
+    private lateinit var id: ResourceLocation
+    private var value: TextureAtlasSprite? = null
+
+    init {
+        BetterFoliageMod.bus.register(this)
+    }
+
+    @SubscribeEvent
+    fun handlePreStitch(event: TextureStitchEvent.Pre) {
+        id = idFunc(); value = null
+        event.addSprite(id)
+    }
+
+    override fun getValue(thisRef: Any, property: KProperty<*>): TextureAtlasSprite {
+        value?.let { return it }
+        synchronized(this) {
+            value?.let { return it }
+            atlas[id].let { value = it; return it }
+        }
+    }
+
+}
+
+class SpriteSetDelegate(
+    val atlas: Atlas,
+    val idRegister: (ResourceLocation) -> ResourceLocation = { it },
+    val idFunc: (Int) -> ResourceLocation
+) : ReadOnlyProperty<Any, SpriteSet> {
+    private var idList: List<ResourceLocation> = emptyList()
+    private var spriteSet: SpriteSet? = null
+
+    init {
+        BetterFoliageMod.bus.register(this)
+    }
+
+    @SubscribeEvent
+    fun handlePreStitch(event: TextureStitchEvent.Pre) {
+        if (event.map.location() != atlas.resourceId) return
+        spriteSet = null
+        idList = (0 until 16)
+            .map(idFunc)
+            .filter { resourceManager.hasResource(atlas.file(it)) }
+            .map(idRegister)
+        idList.forEach { event.addSprite(it) }
+    }
+
+    override fun getValue(thisRef: Any, property: KProperty<*>): SpriteSet {
+        spriteSet?.let { return it }
+        synchronized(this) {
+            spriteSet?.let { return it }
+            spriteSet = FixedSpriteSet(
+                idList
+                    .ifEmpty { listOf(MissingTextureSprite.getLocation()) }
+                    .map { atlas[it] }
+            )
+            return spriteSet!!
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/model/TuftMeshes.kt

@@ -0,0 +1,107 @@
+package mods.betterfoliage.model
+
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.Double3
+import mods.betterfoliage.util.PI2
+import mods.betterfoliage.util.allDirections
+import mods.betterfoliage.util.random
+import mods.betterfoliage.util.randomB
+import mods.betterfoliage.util.randomD
+import mods.betterfoliage.util.randomI
+import mods.betterfoliage.util.rot
+import mods.betterfoliage.util.vec
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.util.Direction.UP
+import net.minecraft.util.ResourceLocation
+import kotlin.math.cos
+import kotlin.math.sin
+
+fun xzDisk(modelIdx: Int) = (PI2 * modelIdx.toDouble() / 64.0).let { Double3(cos(it), 0.0, sin(it)) }
+
+data class TuftShapeKey(
+    val size: Double,
+    val height: Double,
+    val offset: Double3,
+    val flipU1: Boolean,
+    val flipU2: Boolean
+)
+
+fun tuftShapeSet(size: Double, heightMin: Double, heightMax: Double, hOffset: Double): Array<TuftShapeKey> {
+    return Array(64) { idx ->
+        TuftShapeKey(
+            size,
+            randomD(heightMin, heightMax),
+            xzDisk(idx) * randomD(hOffset / 2.0, hOffset),
+            randomB(),
+            randomB()
+        )
+    }
+}
+
+fun tuftQuadSingle(size: Double, height: Double, flipU: Boolean) =
+    Quad.verticalRectangle(
+        x1 = -0.5 * size,
+        z1 = 0.5 * size,
+        x2 = 0.5 * size,
+        z2 = -0.5 * size,
+        yBottom = 0.5,
+        yTop = 0.5 + height
+    )
+        .mirrorUV(flipU, false)
+
+fun tuftModelSet(shapes: Array<TuftShapeKey>, color: Color, tint: Int, spriteGetter: (Int) -> TextureAtlasSprite) =
+    shapes.mapIndexed { idx, shape ->
+        listOf(
+            tuftQuadSingle(shape.size, shape.height, shape.flipU1),
+            tuftQuadSingle(shape.size, shape.height, shape.flipU2).rotate(rot(UP))
+        ).map { it.move(shape.offset) }
+            .map { it.color(color).colorIndex(tint) }
+            .map { it.sprite(spriteGetter(idx)) }
+    }
+
+fun fullCubeTextured(
+    spriteLocation: ResourceLocation,
+    tintIndex: Int,
+    scrambleUV: Boolean = true
+): List<HalfBakedQuad> {
+    val sprite = Atlas.BLOCKS[spriteLocation]
+    return allDirections.map { Quad.faceQuad(it) }
+        .map { if (!scrambleUV) it else it.rotateUV(randomI(max = 4)) }
+        .map { it.sprite(sprite) }
+        .map { it.colorIndex(tintIndex) }
+        .bake(true)
+}
+
+fun crossModelsRaw(num: Int, size: Double, hOffset: Double, vOffset: Double): List<List<Quad>> {
+    return (0 until num).map { idx ->
+        listOf(
+            Quad.verticalRectangle(x1 = -0.5, z1 = 0.5, x2 = 0.5, z2 = -0.5, yBottom = -0.5 * 1.41, yTop = 0.5 * 1.41),
+            Quad.verticalRectangle(x1 = -0.5, z1 = 0.5, x2 = 0.5, z2 = -0.5, yBottom = -0.5 * 1.41, yTop = 0.5 * 1.41)
+                .rotate(rot(UP))
+        ).map { it.scale(size) }
+            .map { it.move(xzDisk(idx) * hOffset) }
+            .map { it.move(UP.vec * randomD(-1.0, 1.0) * vOffset) }
+    }
+}
+
+fun crossModelSingle(base: List<Quad>, sprite: TextureAtlasSprite, color: Color, tint: Int, scrambleUV: Boolean) =
+    base.map { if (scrambleUV) it.scrambleUV(random, canFlipU = true, canFlipV = true, canRotate = true) else it }
+        .map { it.color(color).colorIndex(tint) }
+        .mapIndexed { idx, quad -> quad.sprite(sprite) }
+        .withOpposites()
+        .bake(false)
+
+fun crossModelsTextured(
+    leafBase: Iterable<List<Quad>>,
+    color: Color, tint: Int,
+    scrambleUV: Boolean,
+    spriteGetter: (Int) -> ResourceLocation
+) = leafBase.mapIndexed { idx, leaf ->
+    crossModelSingle(leaf, Atlas.BLOCKS[spriteGetter(idx)], color, tint, scrambleUV)
+}.toTypedArray()
+
+fun Iterable<Quad>.withOpposites() = flatMap { listOf(it, it.flipped) }
+fun Iterable<List<Quad>>.buildTufts(applyDiffuseLighting: Boolean = false) =
+    map { it.withOpposites().bake(applyDiffuseLighting) }.toTypedArray()
+
+fun Iterable<List<Quad>>.transform(trans: Quad.(Int)-> Quad) = mapIndexed { idx, qList -> qList.map { it.trans(idx) } }

src/main/kotlin/mods/betterfoliage/render/AbstractParticle.kt

@@ -1,130 +0,0 @@
-package mods.betterfoliage.render
-
-import mods.betterfoliage.util.Double3
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.particle.ParticleTextureSheet
-import net.minecraft.client.particle.SpriteBillboardParticle
-import net.minecraft.client.render.BufferBuilder
-import net.minecraft.client.render.Camera
-import net.minecraft.client.texture.Sprite
-import net.minecraft.world.World
-import kotlin.math.cos
-import kotlin.math.sin
-
-
-abstract class AbstractParticle(world: World, x: Double, y: Double, z: Double) : SpriteBillboardParticle(world, x, y, z) {
-
-    companion object {
-//        @JvmStatic val sin = Array(64) { idx -> Math.sin(PI2 / 64.0 * idx) }
-//        @JvmStatic val cos = Array(64) { idx -> Math.cos(PI2 / 64.0 * idx) }
-    }
-
-    val billboardRot = Pair(Double3.zero, Double3.zero)
-    val currentPos = Double3.zero
-    val prevPos = Double3.zero
-    val velocity = Double3.zero
-
-    override fun tick() {
-        super.tick()
-        currentPos.setTo(x, y, z)
-        prevPos.setTo(prevPosX, prevPosY, prevPosZ)
-        velocity.setTo(velocityX, velocityY, velocityZ)
-        update()
-        x = currentPos.x; y = currentPos.y; z = currentPos.z;
-        velocityX = velocity.x; velocityY = velocity.y; velocityZ = velocity.z;
-    }
-
-    /** Render the particle. */
-    abstract fun render(worldRenderer: BufferBuilder, partialTickTime: Float)
-
-    /** Update particle on world tick. */
-    abstract fun update()
-
-    /** True if the particle is renderable. */
-    abstract val isValid: Boolean
-
-    /** Add the particle to the effect renderer if it is valid. */
-    fun addIfValid() { if (isValid) MinecraftClient.getInstance().particleManager.addParticle(this) }
-
-    override fun buildGeometry(buffer: BufferBuilder, camera: Camera, tickDelta: Float, rotX: Float, rotZ: Float, rotYZ: Float, rotXY: Float, rotXZ: Float) {
-        billboardRot.first.setTo(rotX + rotXY, rotZ, rotYZ + rotXZ)
-        billboardRot.second.setTo(rotX - rotXY, -rotZ, rotYZ - rotXZ)
-        render(buffer, tickDelta)
-    }
-
-    /**
-     * Render a particle quad.
-     *
-     * @param[tessellator] the [Tessellator] instance to use
-     * @param[partialTickTime] partial tick time
-     * @param[currentPos] render position
-     * @param[prevPos] previous tick position for interpolation
-     * @param[size] particle size
-     * @param[rotation] viewpoint-dependent particle rotation (64 steps)
-     * @param[sprite] particle texture
-     * @param[isMirrored] mirror particle texture along V-axis
-     * @param[alpha] aplha blending
-     */
-    fun renderParticleQuad(worldRenderer: BufferBuilder,
-                           partialTickTime: Float,
-                           currentPos: Double3 = this.currentPos,
-                           prevPos: Double3 = this.prevPos,
-                           size: Double = scale.toDouble(),
-                           rotation: Double = 0.0,
-                           sprite: Sprite = this.sprite,
-                           isMirrored: Boolean = false,
-                           alpha: Float = this.colorAlpha) {
-
-        val minU = (if (isMirrored) sprite.minU else sprite.maxU).toDouble()
-        val maxU = (if (isMirrored) sprite.maxU else sprite.minU).toDouble()
-        val minV = sprite.minV.toDouble()
-        val maxV = sprite.maxV.toDouble()
-
-        val center = currentPos.copy().sub(prevPos).mul(partialTickTime.toDouble()).add(prevPos).sub(cameraX, cameraY, cameraZ)
-
-        val cosRotation = cos(rotation); val sinRotation = sin(rotation)
-        val v1 = Double3.weight(billboardRot.first, cosRotation * size, billboardRot.second, sinRotation * size)
-        val v2 = Double3.weight(billboardRot.first, -sinRotation * size, billboardRot.second, cosRotation * size)
-
-        val renderBrightness = this.getColorMultiplier(partialTickTime)
-        val brHigh = renderBrightness shr 16 and 65535
-        val brLow = renderBrightness and 65535
-
-        worldRenderer
-            .vertex(center.x - v1.x, center.y - v1.y, center.z - v1.z)
-            .texture(maxU, maxV)
-            .color(colorRed, colorGreen, colorBlue, alpha)
-            .texture(brHigh, brLow)
-            .next()
-
-        worldRenderer
-            .vertex(center.x - v2.x, center.y - v2.y, center.z - v2.z)
-            .texture(maxU, minV)
-            .color(colorRed, colorGreen, colorBlue, alpha)
-            .texture(brHigh, brLow)
-            .next()
-
-        worldRenderer
-            .vertex(center.x + v1.x, center.y + v1.y, center.z + v1.z)
-            .texture(minU, minV)
-            .color(colorRed, colorGreen, colorBlue, alpha)
-            .texture(brHigh, brLow)
-            .next()
-
-        worldRenderer
-            .vertex(center.x + v2.x, center.y + v2.y, center.z + v2.z)
-            .texture(minU, maxV)
-            .color(colorRed, colorGreen, colorBlue, alpha)
-            .texture(brHigh, brLow)
-            .next()
-    }
-
-    override fun getType() = ParticleTextureSheet.PARTICLE_SHEET_OPAQUE
-
-    fun setColor(color: Int) {
-        colorBlue = (color and 255) / 256.0f
-        colorGreen = ((color shr 8) and 255) / 256.0f
-        colorRed = ((color shr 16) and 255) / 256.0f
-    }
-}
-

src/main/kotlin/mods/betterfoliage/render/Misc.kt

@@ -1,12 +0,0 @@
-package mods.betterfoliage.render
-
-import net.minecraft.block.Blocks
-import net.minecraft.block.Material
-import net.minecraft.world.biome.Biome
-
-val DIRT_BLOCKS = listOf(Blocks.DIRT, Blocks.COARSE_DIRT)
-val SAND_BLOCKS = listOf(Blocks.SAND, Blocks.RED_SAND)
-
-val SALTWATER_BIOMES = listOf(Biome.Category.BEACH, Biome.Category.OCEAN)
-
-val SNOW_MATERIALS = listOf(Material.SNOW, Material.SNOW_BLOCK)

src/main/kotlin/mods/betterfoliage/render/OptifineCustomColors.kt

@@ -1,48 +0,0 @@
-package mods.betterfoliage.render
-
-import mods.betterfoliage.*
-import mods.betterfoliage.util.ThreadLocalDelegate
-import net.minecraft.block.BlockState
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.render.model.BakedQuad
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.UP
-import org.apache.logging.log4j.Level
-
-/**
- * Integration for OptiFine custom block colors.
- */
-/*
-@Suppress("UNCHECKED_CAST")
-object OptifineCustomColors {
-
-    val isColorAvailable = allAvailable(CustomColors, CustomColors.getColorMultiplier)
-
-    init {
-        BetterFoliage.log(Level.INFO, "Optifine custom color support is ${if (isColorAvailable) "enabled" else "disabled" }")
-    }
-
-    val renderEnv by ThreadLocalDelegate { OptifineRenderEnv() }
-    val fakeQuad = BakedQuad(IntArray(0), 1, UP, null)
-
-    fun getBlockColor(ctx: CombinedContext): Int {
-        val ofColor = if (isColorAvailable && MinecraftClient.getInstance().options.reflectDeclaredField<Boolean>("ofCustomColors") == true) {
-            renderEnv.reset(ctx.state, ctx.pos)
-            CustomColors.getColorMultiplier.invokeStatic(fakeQuad, ctx.state, ctx.world, ctx.pos, renderEnv.wrapped) as? Int
-        } else null
-        return if (ofColor == null || ofColor == -1) ctx.lightingCtx.color else ofColor
-    }
-}
-
-class OptifineRenderEnv {
-    val wrapped: Any = RenderEnv.element!!.getDeclaredConstructor(BlockState.element, BlockPos.element).let {
-        it.isAccessible = true
-        it.newInstance(null, null)
-    }
-
-    fun reset(state: BlockState, pos: BlockPos) {
-        RenderEnv.reset.invoke(wrapped, state, pos)
-    }
-}
-
- */

src/main/kotlin/mods/betterfoliage/render/ShadersModIntegration.kt

@@ -1,64 +0,0 @@
-package mods.betterfoliage.render
-
-import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.util.get
-import net.minecraft.block.BlockRenderType
-import net.minecraft.block.BlockRenderType.MODEL
-import net.minecraft.block.BlockState
-import net.minecraft.block.Blocks
-import net.minecraft.util.math.BlockPos
-import net.minecraft.world.ExtendedBlockView
-import org.apache.logging.log4j.Level.INFO
-
-/**
- * Integration for ShadersMod.
- */
-/*
-object ShadersModIntegration {
-
-    @JvmStatic val isAvailable = allAvailable(SVertexBuilder, SVertexBuilder.pushState, SVertexBuilder.pushNum, SVertexBuilder.pop)
-
-    val defaultLeaves = Blocks.OAK_LEAVES.defaultState
-    val defaultGrass = Blocks.TALL_GRASS.defaultState
-
-    /**
-     * Called from transformed ShadersMod code.
-     * @see mods.betterfoliage.loader.BetterFoliageTransformer
-     */
-    @JvmStatic fun getBlockStateOverride(state: BlockState, world: ExtendedBlockView, pos: BlockPos): BlockState {
-//        if (LeafRegistry[state, world, pos] != null) return defaultLeaves
-        if (BetterFoliage.blockConfig.crops.matchesClass(state.block)) return defaultGrass
-        return state
-    }
-
-    init {
-        BetterFoliage.log(INFO, "ShadersMod integration is ${if (isAvailable) "enabled" else "disabled" }")
-    }
-
-    inline fun renderAs(ctx: CombinedContext, renderType: BlockRenderType, enabled: Boolean = true, func: ()->Unit) =
-        renderAs(ctx, ctx.state, renderType, enabled, func)
-
-    /** Quads rendered inside this block will use the given block entity data in shader programs. */
-    inline fun renderAs(ctx: CombinedContext, state: BlockState, renderType: BlockRenderType, enabled: Boolean = true, func: ()->Unit) {
-        if (isAvailable && enabled) {
-            val buffer = ctx.renderCtx.renderBuffer
-            val sVertexBuilder = buffer[BufferBuilder_sVertexBuilder]
-            SVertexBuilder.pushState.invoke(sVertexBuilder!!, ctx.state, ctx.pos, ctx.world, buffer)
-            func()
-            SVertexBuilder.pop.invoke(sVertexBuilder)
-        } else {
-            func()
-        }
-    }
-
-    /** Quads rendered inside this block will behave as tallgrass blocks in shader programs. */
-    inline fun grass(ctx: CombinedContext, enabled: Boolean = true, func: ()->Unit) =
-        renderAs(ctx, defaultGrass, MODEL, enabled, func)
-
-    /** Quads rendered inside this block will behave as leaf blocks in shader programs. */
-    inline fun leaves(ctx: CombinedContext, enabled: Boolean = true, func: ()->Unit) =
-        renderAs(ctx, defaultLeaves, MODEL, enabled, func)
-}
-
-
- */

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Cactus.kt

@@ -1,94 +1,93 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.render.lighting.withLighting
-import mods.betterfoliage.render.lighting.grassTuftLighting
-import mods.betterfoliage.render.lighting.roundLeafLighting
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.buildTufts
+import mods.betterfoliage.model.crossModelsRaw
+import mods.betterfoliage.model.crossModelsTextured
+import mods.betterfoliage.model.transform
+import mods.betterfoliage.model.tuftModelSet
+import mods.betterfoliage.model.tuftShapeSet
+import mods.betterfoliage.render.lighting.LightingPreferredFace
+import mods.betterfoliage.render.lighting.RoundLeafLighting
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.resource.discovery.ModelBakingContext
+import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
 import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.*
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockState
-import net.minecraft.block.CactusBlock
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.DOWN
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.util.Rotation
+import mods.betterfoliage.util.horizontalDirections
+import mods.betterfoliage.util.idx
+import mods.betterfoliage.util.lazy
+import mods.betterfoliage.util.randomD
+import mods.betterfoliage.util.randomI
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction.DOWN
+import net.minecraft.util.ResourceLocation
+import java.util.Random
 
-
-interface CactusKey : BlockRenderKey {
-    val cactusTop: Identifier
-    val cactusBottom: Identifier
-    val cactusSide: Identifier
-}
-
-object StandardCactusDiscovery : ConfigurableModelDiscovery() {
-    override val logger = BetterFoliage.logDetail
-    override val matchClasses = SimpleBlockMatcher(CactusBlock::class.java)
-    override val modelTextures = listOf(ModelTextureList("block/cactus", "top", "bottom", "side"))
-
-    override fun processModel(state: BlockState, textures: List<String>, atlas: Consumer<Identifier>): BlockRenderKey? {
-        val sprites = textures.map { Identifier(it) }
-        return CactusModel.Key(sprites[0], sprites[1], sprites[2])
+object StandardCactusDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        ctx.addReplacement(StandardCactusKey)
+        ctx.sprites.add(StandardCactusModel.cactusCrossSprite)
     }
 }
 
-class CactusModel(val key: Key, wrapped: BakedModel) : WrappedBakedModel(wrapped), FabricBakedModel {
+object StandardCactusKey : HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel) = StandardCactusModel(wrapped)
+}
 
-    val crossModels by cactusCrossModels.delegate(key)
-    val armModels by cactusArmModels.delegate(key)
-    val armLighting = horizontalDirections.map { grassTuftLighting(it) }
-    val crossLighting = roundLeafLighting()
+class CactusRenderData(val armSide: Int, val armIdx: Int, val crossIdx: Int)
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        (wrapped as FabricBakedModel).emitBlockQuads(blockView, state, pos, randomSupplier, context)
-        if (!BetterFoliage.config.enabled || !BetterFoliage.config.cactus.enabled) return
-
-        val random = randomSupplier.get()
-        val armSide = random.nextInt() and 3
-
-        context.withLighting(armLighting[armSide]) {
-            it.accept(armModels[armSide][random])
-        }
-        context.withLighting(crossLighting) {
-            it.accept(crossModels[random])
-        }
+class StandardCactusModel(
+    wrapped: SpecialRenderModel
+) : HalfBakedSpecialWrapper(wrapped) {
+    override fun prepare(ctx: BlockCtx, random: Random): Any = when {
+        !Config.enabled || !Config.cactus.enabled -> Unit
+        else -> CactusRenderData(
+            armSide = random.nextInt() and 3,
+            armIdx = random.idx(cactusArmModels),
+            crossIdx = random.idx(cactusCrossModels)
+        )
     }
 
-    data class Key(
-        override val cactusTop: Identifier,
-        override val cactusBottom: Identifier,
-        override val cactusSide: Identifier
-    ) : CactusKey {
-        override fun replace(model: BakedModel, state: BlockState) = CactusModel(this, meshifyStandard(model, state))
+    val armLighting = horizontalDirections.map { LightingPreferredFace(it) }.toTypedArray()
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        super.renderLayer(ctx, data, layer)
+        if (data is CactusRenderData) {
+            ctx.vertexLighter = armLighting[data.armSide]
+            ctx.renderQuads(cactusArmModels[data.armSide][data.armIdx])
+            ctx.vertexLighter = RoundLeafLighting
+            ctx.renderQuads(cactusCrossModels[data.crossIdx])
+        }
     }
 
     companion object {
-        val cactusCrossSprite by SpriteDelegate(Atlas.BLOCKS) {
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_cactus")
-        }
+        val cactusCrossSprite = ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_cactus")
         val cactusArmSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_cactus_arm_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_cactus_arm_$idx")
         }
-        val cactusArmModels = LazyMap(BetterFoliage.modelReplacer) { key: CactusKey ->
-            val shapes = BetterFoliage.config.cactus.let { tuftShapeSet(0.8, 0.8, 0.8, 0.2) }
-            val models = tuftModelSet(shapes, Color.white.asInt) { cactusArmSprites[randomI()] }
+        val cactusArmModels by BetterFoliage.modelManager.lazy {
+            val shapes = Config.cactus.let { tuftShapeSet(0.8, 0.8, 0.8, 0.2) }
+            val models = tuftModelSet(shapes, Color.white, -1) { cactusArmSprites[randomI()] }
             horizontalDirections.map { side ->
                 models.transform { move(0.0625 to DOWN).rotate(Rotation.fromUp[side.ordinal]) }.buildTufts()
             }.toTypedArray()
         }
-        val cactusCrossModels = LazyMap(BetterFoliage.modelReplacer) { key: CactusKey ->
-            val models = BetterFoliage.config.cactus.let { config ->
+        val cactusCrossModels by BetterFoliage.modelManager.lazy {
+            val models = Config.cactus.let { config ->
                 crossModelsRaw(64, config.size, 0.0, 0.0)
                     .transform { rotateZ(randomD(-config.sizeVariation, config.sizeVariation)) }
             }
-            crossModelsTextured(models, Color.white.asInt, true) { cactusCrossSprite }
+            crossModelsTextured(models, Color.white, -1, true) { cactusCrossSprite }
         }
     }
-}
+}

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Dirt.kt

@@ -1,101 +1,143 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.chunk.BasicBlockCtx
-import mods.betterfoliage.render.DIRT_BLOCKS
-import mods.betterfoliage.render.SALTWATER_BIOMES
-import mods.betterfoliage.render.lighting.withLighting
-import mods.betterfoliage.render.lighting.grassTuftLighting
-import mods.betterfoliage.render.lighting.reedLighting
-import mods.betterfoliage.render.lighting.renderMasquerade
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.BlockRenderKey
-import mods.betterfoliage.resource.discovery.ModelDiscoveryBase
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.config.SALTWATER_BIOMES
+import mods.betterfoliage.config.isSnow
+import mods.betterfoliage.integration.ShadersModIntegration
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderData
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.buildTufts
+import mods.betterfoliage.model.tuftModelSet
+import mods.betterfoliage.model.tuftShapeSet
+import mods.betterfoliage.render.lighting.LightingPreferredFace
+import mods.betterfoliage.render.pipeline.Layers
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.render.pipeline.extendLayers
+import mods.betterfoliage.resource.discovery.ModelBakingContext
 import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
 import mods.betterfoliage.resource.generated.CenteredSprite
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.block.BlockState
-import net.minecraft.block.Material
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.UP
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.Int3
+import mods.betterfoliage.util.getBlockModel
+import mods.betterfoliage.util.idxOrNull
+import mods.betterfoliage.util.lazy
+import mods.betterfoliage.util.offset
+import mods.betterfoliage.util.randomI
+import net.minecraft.block.material.Material
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction.UP
+import net.minecraft.util.ResourceLocation
+import java.util.Random
 
-object DirtKey : BlockRenderKey {
-    override fun replace(model: BakedModel, state: BlockState) = DirtModel(meshifyStandard(model, state))
+object StandardDirtDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        BetterFoliage.blockTypes.dirt.add(ctx.blockState)
+        ctx.addReplacement(StandardDirtKey)
+        ctx.blockState.block.extendLayers()
+    }
 }
 
-object DirtDiscovery : ModelDiscoveryBase() {
-    override val logger = BetterFoliage.logDetail
-
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: Consumer<Identifier>) =
-        if (ctx.state.block in DIRT_BLOCKS) DirtKey else null
+object StandardDirtKey : HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel) = StandardDirtModel(wrapped)
 }
 
-class DirtModel(wrapped: BakedModel) : WrappedBakedModel(wrapped) {
+class DirtRenderData(
+    val connectedGrassModel: SpecialRenderModel?,
+    val algaeIdx: Int?,
+    val reedIdx: Int?
+) : SpecialRenderData {
+    override fun canRenderInLayer(layer: RenderType) = when {
+        connectedGrassModel != null && layer == Layers.connectedDirt -> true
+        (algaeIdx != null || reedIdx != null) && layer == Layers.tufts -> true
+        else -> false
+    }
+}
 
-    val algaeLighting = grassTuftLighting(UP)
-    val reedLighting = reedLighting()
+class StandardDirtModel(
+    wrapped: SpecialRenderModel
+) : HalfBakedSpecialWrapper(wrapped) {
+    val vanillaTuftLighting = LightingPreferredFace(UP)
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        if (!BetterFoliage.config.enabled) return super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
-
-        val ctx = BasicBlockCtx(blockView, pos)
-        val stateUp = ctx.offset(UP).state
-        val keyUp = BetterFoliage.modelReplacer[stateUp]
+    override fun prepare(ctx: BlockCtx, random: Random): Any {
+        if (!Config.enabled) return Unit
+        val stateUp = ctx.state(UP)
+        val state2Up = ctx.state(Int3(0, 2, 0))
+        val isConnectedGrass = Config.connectedGrass.enabled &&
+                stateUp in BetterFoliage.blockTypes.grass &&
+                (Config.connectedGrass.snowEnabled || !state2Up.isSnow)
 
         val isWater = stateUp.material == Material.WATER
-        val isDeepWater = isWater && ctx.offset(Int3(2 to UP)).state.material == Material.WATER
-        val isShallowWater = isWater && ctx.offset(Int3(2 to UP)).state.isAir
-        val isSaltWater = isWater && ctx.biome.category in SALTWATER_BIOMES
+        val isDeepWater = isWater && state2Up.material == Material.WATER
+        val isShallowWater = isWater && state2Up.isAir
+        val isSaltWater = isWater && ctx.biome?.biomeCategory in SALTWATER_BIOMES
 
-        if (BetterFoliage.config.connectedGrass.enabled && keyUp is GrassKey) {
-            val grassBaseModel = (ctx.model(UP) as WrappedBakedModel).wrapped
-            context.renderMasquerade(grassBaseModel, blockView, stateUp, pos, randomSupplier, context)
-        } else {
-            super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
-        }
-
-        val random = randomSupplier.get()
-        if (BetterFoliage.config.algae.enabled(random) && isDeepWater) {
-            context.withLighting(algaeLighting) {
-                it.accept(algaeModels[random])
-            }
-        } else if (BetterFoliage.config.reed.enabled(random) && isShallowWater && !isSaltWater) {
-            context.withLighting(reedLighting) {
-                it.accept(reedModels[random])
+        // get the actual grass model to use for connected grass rendering
+        // return null if the grass specifically does not want to connect
+        val connectedGrassModel = if (!isConnectedGrass) null else getBlockModel(stateUp).let { model ->
+            (model as? SpecialRenderModel)?.resolve(random)?.let { grassModel ->
+                if ((grassModel as? StandardGrassModel)?.key?.noConnect == true) null else grassModel
             }
         }
+
+        return DirtRenderData(
+            connectedGrassModel = connectedGrassModel,
+            algaeIdx = random.idxOrNull(algaeModels) { Config.algae.enabled(random) && isDeepWater && isSaltWater },
+            reedIdx = random.idxOrNull(reedModels) { Config.reed.enabled(random) && isShallowWater && !isSaltWater }
+        )
+    }
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        if (data is DirtRenderData) {
+            if (data.connectedGrassModel != null) {
+                ctx.renderMasquerade(UP.offset) {
+                    data.connectedGrassModel.renderLayer(ctx, ctx.state(UP), layer)
+                }
+            } else {
+                // render non-connected grass
+                super.renderLayer(ctx, data, layer)
+            }
+
+            if (layer == Layers.tufts) {
+                data.algaeIdx?.let {
+                    ctx.vertexLighter = vanillaTuftLighting
+                    ShadersModIntegration.grass(ctx, Config.algae.shaderWind) {
+                        ctx.renderQuads(algaeModels[it])
+                    }
+                }
+                data.reedIdx?.let {
+                    ctx.vertexLighter = vanillaTuftLighting
+                    ShadersModIntegration.grass(ctx, Config.reed.shaderWind) {
+                        ctx.renderQuads(reedModels[it])
+                    }
+                }
+            }
+        } else super.renderLayer(ctx, data, layer)
     }
 
     companion object {
         val algaeSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_algae_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_algae_$idx")
         }
-        val reedSprites by SpriteSetDelegate(Atlas.BLOCKS,
-            idFunc = { idx -> Identifier(BetterFoliage.MOD_ID, "blocks/better_reed_$idx") },
+        val reedSprites by SpriteSetDelegate(
+            Atlas.BLOCKS,
+            idFunc = { idx -> ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_reed_$idx") },
             idRegister = { id -> CenteredSprite(id, aspectHeight = 2).register(BetterFoliage.generatedPack) }
         )
-        val algaeModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            val shapes = BetterFoliage.config.algae.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
-            tuftModelSet(shapes, Color.white.asInt) { algaeSprites[randomI()] }
-                .withOpposites()
-                .build(BlockRenderLayer.CUTOUT_MIPPED, flatLighting = false)
-
+        val algaeModels by BetterFoliage.modelManager.lazy {
+            val shapes = Config.algae.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
+            tuftModelSet(shapes, Color.white, -1) { algaeSprites[randomI()] }.buildTufts()
         }
-        val reedModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            val shapes = BetterFoliage.config.reed.let { tuftShapeSet(2.0, it.heightMin, it.heightMax, it.hOffset) }
-            tuftModelSet(shapes, Color.white.asInt) { reedSprites[randomI()] }
-                .withOpposites()
-                .build(BlockRenderLayer.CUTOUT_MIPPED, flatLighting = false)
+        val reedModels by BetterFoliage.modelManager.lazy {
+            val shapes = Config.reed.let { tuftShapeSet(2.0, it.heightMin, it.heightMax, it.hOffset) }
+            tuftModelSet(shapes, Color.white, -1) { reedSprites[randomI()] }.buildTufts()
         }
     }
 }

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Grass.kt

@@ -1,121 +1,148 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.chunk.BasicBlockCtx
-import mods.betterfoliage.render.SNOW_MATERIALS
-import mods.betterfoliage.render.lighting.withLighting
-import mods.betterfoliage.render.lighting.grassTuftLighting
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.config.isSnow
+import mods.betterfoliage.integration.ShadersModIntegration
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderData
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.buildTufts
+import mods.betterfoliage.model.fullCubeTextured
+import mods.betterfoliage.model.tuftModelSet
+import mods.betterfoliage.model.tuftShapeSet
+import mods.betterfoliage.render.lighting.LightingPreferredFace
+import mods.betterfoliage.render.pipeline.Layers
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.render.pipeline.extendLayers
+import mods.betterfoliage.resource.discovery.ModelBakingContext
+import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
 import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.*
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.block.BlockState
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.tag.BlockTags
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.*
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.util.averageHSB
+import mods.betterfoliage.util.idxOrNull
+import mods.betterfoliage.util.lazy
+import mods.betterfoliage.util.lazyMap
+import mods.betterfoliage.util.brighten
+import mods.betterfoliage.util.logTextureColor
+import mods.betterfoliage.util.randomI
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction.DOWN
+import net.minecraft.util.Direction.UP
+import net.minecraft.util.ResourceLocation
+import org.apache.logging.log4j.Level.INFO
+import java.util.Random
 
-interface GrassKey : BlockRenderKey {
-    val grassTopTexture: Identifier
-
-    /**
-     * Color to use for Short Grass rendering instead of the biome color.
-     *
-     * Value is null if the texture is mostly grey (the saturation of its average color is under a configurable limit),
-     * the average color of the texture otherwise.
-     */
-    val overrideColor: Int?
-}
-
-object StandardGrassDiscovery : ConfigurableModelDiscovery() {
-    override val logger = BetterFoliage.logDetail
-    override val matchClasses: ConfigurableBlockMatcher get() = BetterFoliage.blockConfig.grassBlocks
-    override val modelTextures: List<ModelTextureList> get() = BetterFoliage.blockConfig.grassModels.modelList
-
-    override fun processModel(state: BlockState, textures: List<String>, atlas: Consumer<Identifier>): BlockRenderKey? {
-        val grassId = Identifier(textures[0])
-        log(" block state $state")
-        log("       texture $grassId")
-        return GrassBlockModel.Key(grassId, getAndLogColorOverride(grassId, Atlas.BLOCKS, BetterFoliage.config.shortGrass.saturationThreshold))
+object StandardGrassDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        val texture = params.location("texture") ?: return
+        val tint = params.int("tint") ?: -1
+        val color = Atlas.BLOCKS.file(texture).averageHSB.let {
+            detailLogger.logTextureColor(INFO, "grass texture \"$texture\"", it)
+            it.brighten().asColor
+        }
+        val noConnect = params["no-connect"] == "true"
+        ctx.addReplacement(StandardGrassKey(texture, tint, color, noConnect))
+        BetterFoliage.blockTypes.grass.add(ctx.blockState)
+        ctx.blockState.block.extendLayers()
     }
 }
 
-class GrassBlockModel(val key: Key, wrapped: BakedModel) : WrappedBakedModel(wrapped), FabricBakedModel {
+data class StandardGrassKey(
+    val sprite: ResourceLocation,
+    val tintIndex: Int,
+    val avgColor: Color,
+    val noConnect: Boolean
+) : HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel): SpecialRenderModel {
+        return StandardGrassModel(wrapped, this)
+    }
+}
+
+class GrassRenderData(
+    val isSnowed: Boolean,
+    val connectedGrassIdx: Int?,
+    val tuftIdx: Int?
+): SpecialRenderData {
+    override fun canRenderInLayer(layer: RenderType) = when {
+        connectedGrassIdx != null && layer == Layers.connectedGrass -> true
+        tuftIdx != null && layer == Layers.tufts -> true
+        else -> false
+    }
+}
+
+class StandardGrassModel(
+    wrapped: SpecialRenderModel,
+    val key: StandardGrassKey
+) : HalfBakedSpecialWrapper(wrapped) {
 
     val tuftNormal by grassTuftMeshesNormal.delegate(key)
     val tuftSnowed by grassTuftMeshesSnowed.delegate(key)
     val fullBlock by grassFullBlockMeshes.delegate(key)
+    val tuftLighting = LightingPreferredFace(UP)
 
-    val tuftLighting = grassTuftLighting(UP)
+    override fun prepare(ctx: BlockCtx, random: Random): Any {
+        if (!Config.enabled) return Unit
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        if (!BetterFoliage.config.enabled) return super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
-
-        val ctx = BasicBlockCtx(blockView, pos)
         val stateBelow = ctx.state(DOWN)
         val stateAbove = ctx.state(UP)
+        val isAir = ctx.isAir(UP)
+        val isSnowed = stateAbove.isSnow
+        val connected = !key.noConnect && Config.connectedGrass.enabled &&
+                (!isSnowed || Config.connectedGrass.snowEnabled) &&
+                BetterFoliage.blockTypes.run { stateBelow in grass || stateBelow in dirt }
 
-        val isSnowed = stateAbove.material in SNOW_MATERIALS
-        val connected = BetterFoliage.config.connectedGrass.enabled &&
-            (!isSnowed || BetterFoliage.config.connectedGrass.snowEnabled) && (
-                BlockTags.DIRT_LIKE.contains(stateBelow.block) ||
-                BetterFoliage.modelReplacer.getTyped<GrassKey>(stateBelow) != null
-            )
-
-        val random = randomSupplier.get()
-        if (connected) {
-            context.meshConsumer().accept(if (isSnowed) snowFullBlockMeshes[random] else fullBlock[random])
-        } else {
-            super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
-        }
-
-        if (BetterFoliage.config.shortGrass.enabled(random) && !ctx.isNeighborSolid(UP)) {
-            context.withLighting(tuftLighting) {
-                it.accept(if (isSnowed) tuftSnowed[random] else tuftNormal[random])
+        return GrassRenderData(
+            isSnowed = isSnowed,
+            connectedGrassIdx = random.idxOrNull(if (isSnowed) snowFullBlockMeshes else fullBlock) { connected },
+            tuftIdx = random.idxOrNull(if (isSnowed) tuftSnowed else tuftNormal) {
+                Config.shortGrass.enabled(random) &&
+                        Config.shortGrass.grassEnabled &&
+                        (isAir || isSnowed)
             }
-        }
+        )
     }
 
-    data class Key(
-        override val grassTopTexture: Identifier,
-        override val overrideColor: Int?
-    ) : GrassKey {
-        override fun replace(model: BakedModel, state: BlockState) = GrassBlockModel(this, meshifyStandard(model, state))
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        if (data is GrassRenderData) {
+            if (data.connectedGrassIdx != null) {
+                if (layer == Layers.connectedGrass)
+                    ctx.renderQuads((if (data.isSnowed) snowFullBlockMeshes else fullBlock)[data.connectedGrassIdx])
+            } else {
+                super.renderLayer(ctx, data, layer)
+            }
+            if (data.tuftIdx != null && layer == Layers.tufts) {
+                ctx.vertexLighter = tuftLighting
+                ShadersModIntegration.grass(ctx, Config.shortGrass.shaderWind) {
+                    ctx.renderQuads((if (data.isSnowed) tuftSnowed else tuftNormal)[data.tuftIdx])
+                }
+            }
+        } else super.renderLayer(ctx, data, layer)
     }
 
     companion object {
-        val grassTuftSpritesNormal by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_grass_long_$idx")
+        val grassTuftSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_grass_long_$idx")
         }
-        val grassTuftSpritesSnowed by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_grass_long_$idx")
+        val grassTuftShapes by BetterFoliage.modelManager.lazy {
+            Config.shortGrass.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
         }
-        val grassTuftShapes = LazyMap(BetterFoliage.modelReplacer) { key: GrassKey ->
-            BetterFoliage.config.shortGrass.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
+        val grassTuftMeshesNormal = BetterFoliage.modelManager.lazyMap { key: StandardGrassKey ->
+            tuftModelSet(grassTuftShapes, key.avgColor, key.tintIndex) { idx -> grassTuftSprites[randomI()] }.buildTufts()
         }
-        val grassTuftMeshesNormal = LazyMap(BetterFoliage.modelReplacer) { key: GrassKey ->
-            tuftModelSet(grassTuftShapes[key], key.overrideColor) { idx -> grassTuftSpritesNormal[randomI()] }
-                .withOpposites()
-                .build(BlockRenderLayer.CUTOUT_MIPPED, flatLighting = false)
+        val grassTuftMeshesSnowed = BetterFoliage.modelManager.lazyMap { key: StandardGrassKey ->
+            tuftModelSet(grassTuftShapes, Color.white, -1) { idx -> grassTuftSprites[randomI()] }.buildTufts()
         }
-        val grassTuftMeshesSnowed = LazyMap(BetterFoliage.modelReplacer) { key: GrassKey ->
-            tuftModelSet(grassTuftShapes[key], Color.white.asInt) { idx -> grassTuftSpritesSnowed[randomI()] }
-                .withOpposites()
-                .build(BlockRenderLayer.CUTOUT_MIPPED, flatLighting = false)
+        val grassFullBlockMeshes = BetterFoliage.modelManager.lazyMap { key: StandardGrassKey ->
+            Array(64) { fullCubeTextured(key.sprite, key.tintIndex) }
         }
-        val grassFullBlockMeshes = LazyMap(BetterFoliage.modelReplacer) { key: GrassKey ->
-            Array(64) { fullCubeTextured(key.grassTopTexture, key.overrideColor) }
-        }
-        val snowFullBlockMeshes by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            Array(64) { fullCubeTextured(Identifier("block/snow"), Color.white.asInt) }
+        val snowFullBlockMeshes by BetterFoliage.modelManager.lazy {
+            Array(64) { fullCubeTextured(ResourceLocation("block/snow"), -1) }
         }
     }
-}
+}

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Leaf.kt

@@ -1,116 +1,101 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.chunk.BasicBlockCtx
-import mods.betterfoliage.render.SNOW_MATERIALS
-import mods.betterfoliage.render.lighting.withLighting
-import mods.betterfoliage.render.lighting.roundLeafLighting
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.config.isSnow
+import mods.betterfoliage.integration.ShadersModIntegration
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.crossModelsRaw
+import mods.betterfoliage.model.crossModelsTextured
+import mods.betterfoliage.render.lighting.RoundLeafLightingPreferUp
+import mods.betterfoliage.render.particle.LeafBlockModel
+import mods.betterfoliage.render.particle.LeafParticleKey
 import mods.betterfoliage.render.particle.LeafParticleRegistry
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.*
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.resource.discovery.ModelBakingContext
+import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
 import mods.betterfoliage.resource.generated.GeneratedLeafSprite
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockRenderLayer.CUTOUT_MIPPED
-import net.minecraft.block.BlockState
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.*
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.averageHSB
+import mods.betterfoliage.util.lazy
+import mods.betterfoliage.util.lazyMap
+import mods.betterfoliage.util.brighten
+import mods.betterfoliage.util.logTextureColor
+import mods.betterfoliage.util.saturate
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction.UP
+import net.minecraft.util.ResourceLocation
+import org.apache.logging.log4j.Level.INFO
 
-interface LeafKey : BlockRenderKey {
-    val roundLeafTexture: Identifier
+object StandardLeafDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        val texture = params.location("texture") ?: return
+        val tint = params.int("tint") ?: -1
+        val color = Atlas.BLOCKS.file(texture).averageHSB.let {
+            detailLogger.logTextureColor(INFO, "leaf texture \"$texture\"", it)
+            it.brighten().asColor
+        }
+        val leafType = params["particle"] ?: "default"
+        val generated = GeneratedLeafSprite(texture, leafType)
+            .register(BetterFoliage.generatedPack)
+            .apply { ctx.sprites.add(this) }
 
-    /** Type of the leaf block (configurable by user). */
-    val leafType: String
-
-    /** Average color of the round leaf texture. */
-    val overrideColor: Int?
-}
-
-object StandardLeafDiscovery : ConfigurableModelDiscovery() {
-    override val logger = BetterFoliage.logDetail
-    override val matchClasses: ConfigurableBlockMatcher get() = BetterFoliage.blockConfig.leafBlocks
-    override val modelTextures: List<ModelTextureList> get() = BetterFoliage.blockConfig.leafModels.modelList
-
-    override fun processModel(state: BlockState, textures: List<String>, atlas: Consumer<Identifier>) =
-        defaultRegisterLeaf(Identifier(textures[0]), atlas)
-
-}
-
-fun HasLogger.defaultRegisterLeaf(sprite: Identifier, atlas: Consumer<Identifier>): BlockRenderKey? {
-    val leafType = LeafParticleRegistry.typeMappings.getType(sprite) ?: "default"
-    val leafId = GeneratedLeafSprite(sprite, leafType).register(BetterFoliage.generatedPack)
-    atlas.accept(leafId)
-
-    log(" leaf texture $sprite")
-    log("     particle $leafType")
-
-    return NormalLeavesModel.Key(
-        leafId, leafType,
-        getAndLogColorOverride(leafId, Atlas.BLOCKS, BetterFoliage.config.shortGrass.saturationThreshold)
-    )
-}
-
-fun HasLogger.getAndLogColorOverride(sprite: Identifier, atlas: Atlas, threshold: Double): Int? {
-    val hsb = resourceManager.averageImageColorHSB(sprite, atlas)
-    return if (hsb.saturation >= threshold) {
-        log("         brightness ${hsb.brightness}")
-        log("         saturation ${hsb.saturation} >= ${threshold}, using texture color")
-        hsb.copy(brightness = 0.9f.coerceAtMost(hsb.brightness * 2.0f)).asColor
-    } else {
-        log("         saturation ${hsb.saturation} < ${threshold}, using block color")
-        null
+        detailLogger.log(INFO, "     particle $leafType")
+        ctx.addReplacement(StandardLeafKey(generated, leafType, tint, color))
+        BetterFoliage.blockTypes.leaf.add(ctx.blockState)
     }
 }
 
-class NormalLeavesModel(val key: Key, wrapped: BakedModel) : WrappedBakedModel(wrapped), FabricBakedModel {
+data class StandardLeafKey(
+    val roundLeafTexture: ResourceLocation,
+    override val leafType: String,
+    override val tintIndex: Int,
+    override val avgColor: Color
+) : HalfBakedWrapperKey(), LeafParticleKey {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel): SpecialRenderModel {
+        return StandardLeafModel(wrapped, this)
+    }
+}
 
+class StandardLeafModel(
+    model: SpecialRenderModel,
+    override val key: StandardLeafKey
+) : HalfBakedSpecialWrapper(model), LeafBlockModel {
     val leafNormal by leafModelsNormal.delegate(key)
     val leafSnowed by leafModelsSnowed.delegate(key)
-    val leafLighting = roundLeafLighting()
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
-        if (!BetterFoliage.config.enabled || !BetterFoliage.config.leaves.enabled) return
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        ShadersModIntegration.leaves(ctx, true) {
+            super.renderLayer(ctx, data, layer)
+            if (!Config.enabled || !Config.leaves.enabled) return
 
-        val ctx = BasicBlockCtx(blockView, pos)
-        val stateAbove = ctx.state(UP)
-        val isSnowed = stateAbove.material in SNOW_MATERIALS
-
-        val random = randomSupplier.get()
-        context.withLighting(leafLighting) {
-            it.accept(leafNormal[random])
-            if (isSnowed) it.accept(leafSnowed[random])
+            ctx.vertexLighter = RoundLeafLightingPreferUp
+            val leafIdx = ctx.random.nextInt(64)
+            ctx.renderQuads(leafNormal[leafIdx])
+            if (Config.leaves.snowEnabled && ctx.state(UP).isSnow) ctx.renderQuads(leafSnowed[leafIdx])
         }
     }
 
-    data class Key(
-        override val roundLeafTexture: Identifier,
-        override val leafType: String,
-        override val overrideColor: Int?
-    ) : LeafKey {
-        override fun replace(model: BakedModel, state: BlockState) = NormalLeavesModel(this, meshifyStandard(model, state, renderLayerOverride = CUTOUT_MIPPED))
-    }
-
     companion object {
         val leafSpritesSnowed by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_leaves_snowed_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_leaves_snowed_$idx")
         }
-        val leafModelsBase = LazyMap(BetterFoliage.modelReplacer) { key: LeafKey ->
-            BetterFoliage.config.leaves.let { crossModelsRaw(64, it.size, it.hOffset, it.vOffset) }
+        val leafModelsBase by BetterFoliage.modelManager.lazy {
+            Config.leaves.let { crossModelsRaw(64, it.size, it.hOffset, it.vOffset) }
         }
-        val leafModelsNormal = LazyMap(BetterFoliage.modelReplacer) { key: LeafKey ->
-            crossModelsTextured(leafModelsBase[key], key.overrideColor, true) { Atlas.BLOCKS.atlas[key.roundLeafTexture]!! }
+        val leafModelsNormal = BetterFoliage.modelManager.lazyMap { key: StandardLeafKey ->
+            // generated leaf textures naturally carry the color of their source textures
+            // no need to color the quad a second time
+            crossModelsTextured(leafModelsBase, Color.white, key.tintIndex, true) { key.roundLeafTexture }
         }
-        val leafModelsSnowed = LazyMap(BetterFoliage.modelReplacer) { key: LeafKey ->
-            crossModelsTextured(leafModelsBase[key], Color.white.asInt, false) { leafSpritesSnowed[it] }
+        val leafModelsSnowed = BetterFoliage.modelManager.lazyMap { key: StandardLeafKey ->
+            crossModelsTextured(leafModelsBase, Color.white, -1, false) { leafSpritesSnowed[it].name }
         }
     }
-}
+}

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Lilypad.kt

@@ -1,66 +1,86 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.BlockRenderKey
-import mods.betterfoliage.resource.discovery.ModelDiscoveryBase
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.integration.ShadersModIntegration
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.buildTufts
+import mods.betterfoliage.model.transform
+import mods.betterfoliage.model.tuftModelSet
+import mods.betterfoliage.model.tuftShapeSet
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.resource.discovery.ModelBakingContext
 import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
-import mods.betterfoliage.resource.discovery.RenderKeyFactory
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.LazyInvalidatable
-import mods.betterfoliage.util.get
-import mods.betterfoliage.util.semiRandom
-import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockState
-import net.minecraft.block.Blocks
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.DOWN
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.idx
+import mods.betterfoliage.util.idxOrNull
+import mods.betterfoliage.util.lazy
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction.DOWN
+import net.minecraft.util.ResourceLocation
+import java.util.Random
 
-object LilypadKey : BlockRenderKey {
-    override fun replace(model: BakedModel, state: BlockState) = LilypadModel(meshifyStandard(model, state))
+object StandardLilypadDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        ctx.addReplacement(StandardLilypadKey)
+    }
 }
 
-object LilyPadDiscovery : ModelDiscoveryBase() {
-    override val logger = BetterFoliage.logDetail
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: Consumer<Identifier>) =
-        if (ctx.state.block == Blocks.LILY_PAD) LilypadKey else null
+object StandardLilypadKey : HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel) = StandardLilypadModel(wrapped)
 }
 
-class LilypadModel(wrapped: BakedModel) : WrappedBakedModel(wrapped) {
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
-        if (!BetterFoliage.config.enabled || !BetterFoliage.config.lilypad.enabled) return
+class LilypadRenderData(
+    val rootIdx: Int,
+    val flowerIdx: Int?
+)
 
-        val random = randomSupplier.get()
-        context.meshConsumer().accept(lilypadRootModels[random])
-        if (random.nextInt(64) < BetterFoliage.config.lilypad.population) {
-            context.meshConsumer().accept(lilypadFlowerModels[random])
+class StandardLilypadModel(
+    wrapped: SpecialRenderModel
+) : HalfBakedSpecialWrapper(wrapped) {
+
+    override fun prepare(ctx: BlockCtx, random: Random): Any {
+        if (!Config.enabled) return Unit
+        return LilypadRenderData(
+            rootIdx = random.idx(lilypadRootModels),
+            flowerIdx = random.idxOrNull(lilypadFlowerModels) { Config.lilypad.enabled(random) }
+        )
+    }
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        ctx.checkSides = false
+        super.renderLayer(ctx, data, layer)
+        if (data is LilypadRenderData) {
+            data.flowerIdx?.let { ctx.renderQuads(lilypadFlowerModels[it]) }
+            ShadersModIntegration.grass(ctx, Config.lilypad.shaderWind) {
+                ctx.renderQuads(lilypadRootModels[data.rootIdx])
+            }
         }
     }
 
     companion object {
         val lilypadRootSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_lilypad_roots_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_lilypad_roots_$idx")
         }
         val lilypadFlowerSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_lilypad_flower_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_lilypad_flower_$idx")
         }
-        val lilypadRootModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            val shapes = tuftShapeSet(1.0, 1.0, 1.0, BetterFoliage.config.lilypad.hOffset)
-            tuftModelSet(shapes, Color.white.asInt) { lilypadRootSprites[it] }
+        val lilypadRootModels by BetterFoliage.modelManager.lazy {
+            val shapes = tuftShapeSet(1.0, 1.0, 1.0, Config.lilypad.hOffset)
+            tuftModelSet(shapes, Color.white, -1) { lilypadRootSprites[it] }
                 .transform { move(2.0 to DOWN) }
                 .buildTufts()
         }
-        val lilypadFlowerModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            val shapes = tuftShapeSet(0.5, 0.5, 0.5, BetterFoliage.config.lilypad.hOffset)
-            tuftModelSet(shapes, Color.white.asInt) { lilypadFlowerSprites[it] }
+        val lilypadFlowerModels by BetterFoliage.modelManager.lazy {
+            val shapes = tuftShapeSet(0.5, 0.5, 0.5, Config.lilypad.hOffset)
+            tuftModelSet(shapes, Color.white, -1) { lilypadFlowerSprites[it] }
                 .transform { move(1.0 to DOWN) }
                 .buildTufts()
         }

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Mycelium.kt

@@ -1,63 +1,99 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.render.lighting.withLighting
-import mods.betterfoliage.render.lighting.grassTuftLighting
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.BlockRenderKey
-import mods.betterfoliage.resource.discovery.ModelDiscoveryBase
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderData
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.buildTufts
+import mods.betterfoliage.model.tuftModelSet
+import mods.betterfoliage.model.tuftShapeSet
+import mods.betterfoliage.render.lighting.LightingPreferredFace
+import mods.betterfoliage.render.pipeline.Layers
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.render.pipeline.extendLayers
+import mods.betterfoliage.resource.discovery.ModelBakingContext
 import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
-import mods.betterfoliage.resource.discovery.RenderKeyFactory
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockState
-import net.minecraft.block.Blocks
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.UP
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.averageHSB
+import mods.betterfoliage.util.idxOrNull
+import mods.betterfoliage.util.lazy
+import mods.betterfoliage.util.lazyMap
+import mods.betterfoliage.util.brighten
+import mods.betterfoliage.util.randomI
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction
+import net.minecraft.util.ResourceLocation
+import java.util.Random
 
-object MyceliumKey : BlockRenderKey {
-    override fun replace(model: BakedModel, state: BlockState) = MyceliumModel(meshifyStandard(model, state))
+object StandardMyceliumDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        val texture = params.location("texture") ?: return
+        val tint = params.int("tint") ?: -1
+        val color = Atlas.BLOCKS.file(texture).averageHSB.brighten(multiplier = 1.5f).asColor
+        ctx.addReplacement(StandardMyceliumKey(texture, tint, color))
+        ctx.blockState.block.extendLayers()
+    }
 }
 
-object MyceliumDiscovery : ModelDiscoveryBase() {
-    override val logger = BetterFoliage.logDetail
-    val myceliumBlocks = listOf(Blocks.MYCELIUM)
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: Consumer<Identifier>) =
-        if (ctx.state.block in myceliumBlocks) MyceliumKey else null
+data class StandardMyceliumKey(
+    val sprite: ResourceLocation,
+    val tintIndex: Int,
+    val avgColor: Color,
+) : HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel): SpecialRenderModel {
+        return StandardMyceliumModel(wrapped, this)
+    }
 }
 
-class MyceliumModel(wrapped: BakedModel) : WrappedBakedModel(wrapped) {
+class MyceliumRenderData(
+    val tuftIndex: Int?
+) : SpecialRenderData {
+    override fun canRenderInLayer(layer: RenderType) = tuftIndex != null && layer == Layers.tufts
+}
 
-    val tuftLighting = grassTuftLighting(UP)
+class StandardMyceliumModel(
+    wrapped: SpecialRenderModel,
+    key: StandardMyceliumKey
+) : HalfBakedSpecialWrapper(wrapped) {
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
+    val tuftModels by myceliumTuftModels.delegate(key)
+    val tuftLighting = LightingPreferredFace(Direction.UP)
 
-        val random = randomSupplier.get()
-        if (BetterFoliage.config.enabled &&
-            BetterFoliage.config.shortGrass.let { it.myceliumEnabled && random.nextInt(64) < it.population } &&
-            blockView.getBlockState(pos + UP.offset).isAir
-        ) {
-            context.withLighting(tuftLighting) {
-                it.accept(myceliumTuftModels[random])
+    override fun prepare(ctx: BlockCtx, random: Random): Any {
+        if (!Config.enabled) return Unit
+        return MyceliumRenderData(
+            random.idxOrNull(tuftModels) {
+                Config.shortGrass.enabled(random) &&
+                Config.shortGrass.myceliumEnabled &&
+                ctx.state(Direction.UP).isAir(ctx.world, ctx.pos)
             }
+        )
+    }
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        super.renderLayer(ctx, data, layer)
+        if (data is MyceliumRenderData && data.tuftIndex != null && layer == Layers.tufts) {
+            ctx.vertexLighter = tuftLighting
+            ctx.renderQuads(tuftModels[data.tuftIndex])
         }
     }
 
     companion object {
         val myceliumTuftSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_mycel_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_mycel_$idx")
         }
-        val myceliumTuftModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            val shapes = BetterFoliage.config.shortGrass.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
-            tuftModelSet(shapes, Color.white.asInt) { idx -> myceliumTuftSprites[randomI()] }.buildTufts()
+        val myceliumTuftShapes by BetterFoliage.modelManager.lazy {
+            Config.shortGrass.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
+        }
+        val myceliumTuftModels = BetterFoliage.modelManager.lazyMap { key: StandardMyceliumKey ->
+            tuftModelSet(myceliumTuftShapes, key.avgColor, key.tintIndex) { idx -> myceliumTuftSprites[randomI()] }.buildTufts()
         }
     }
 }

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Netherrack.kt

@@ -1,66 +1,86 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.render.lighting.withLighting
-import mods.betterfoliage.render.lighting.grassTuftLighting
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.BlockRenderKey
-import mods.betterfoliage.resource.discovery.ModelDiscoveryBase
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderData
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.buildTufts
+import mods.betterfoliage.model.transform
+import mods.betterfoliage.model.tuftModelSet
+import mods.betterfoliage.model.tuftShapeSet
+import mods.betterfoliage.render.lighting.LightingPreferredFace
+import mods.betterfoliage.render.pipeline.Layers
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.render.pipeline.extendLayers
+import mods.betterfoliage.resource.discovery.ModelBakingContext
 import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
-import mods.betterfoliage.resource.discovery.RenderKeyFactory
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.block.BlockState
-import net.minecraft.block.Blocks
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.DOWN
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.Rotation
+import mods.betterfoliage.util.idxOrNull
+import mods.betterfoliage.util.lazy
+import mods.betterfoliage.util.randomI
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction.DOWN
+import net.minecraft.util.ResourceLocation
+import java.util.Random
 
-object NetherrackKey : BlockRenderKey {
-    override fun replace(model: BakedModel, state: BlockState) = NetherrackModel(meshifyStandard(model, state))
+object StandardNetherrackDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        ctx.addReplacement(StandardNetherrackKey)
+        ctx.blockState.block.extendLayers()
+    }
 }
 
-object NetherrackDiscovery : ModelDiscoveryBase() {
-    override val logger = BetterFoliage.logDetail
-    val netherrackBlocks = listOf(Blocks.NETHERRACK)
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: Consumer<Identifier>) =
-        if (ctx.state.block in netherrackBlocks) NetherrackKey else null
+object StandardNetherrackKey : HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel) = StandardNetherrackModel(wrapped)
 }
 
-class NetherrackModel(wrapped: BakedModel) : WrappedBakedModel(wrapped) {
+class NetherrackRenderData(
+    val tuftIndex: Int?
+): SpecialRenderData {
+    override fun canRenderInLayer(layer: RenderType) = tuftIndex != null && layer == Layers.tufts
+}
 
-    val tuftLighting = grassTuftLighting(DOWN)
+class StandardNetherrackModel(
+    wrapped: SpecialRenderModel
+) : HalfBakedSpecialWrapper(wrapped) {
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
-        if (BetterFoliage.config.enabled &&
-            BetterFoliage.config.netherrack.enabled &&
-            blockView.getBlockState(pos + DOWN.offset).isAir
-        ) {
-            val random = randomSupplier.get()
-            context.withLighting(tuftLighting) {
-                it.accept(netherrackTuftModels[random])
+    val tuftLighting = LightingPreferredFace(DOWN)
+
+    override fun prepare(ctx: BlockCtx, random: Random): Any {
+        if (!Config.enabled) return Unit
+        return NetherrackRenderData(
+            random.idxOrNull(netherrackTuftModels) {
+                Config.netherrack.enabled &&
+                ctx.isAir(DOWN)
             }
+        )
+    }
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        super.renderLayer(ctx, data, layer)
+        if (data is NetherrackRenderData && data.tuftIndex != null && layer == Layers.tufts) {
+            ctx.vertexLighter = tuftLighting
+            ctx.renderQuads(netherrackTuftModels[data.tuftIndex])
         }
     }
 
     companion object {
         val netherrackTuftSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_netherrack_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_netherrack_$idx")
         }
-        val netherrackTuftModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            val shapes = BetterFoliage.config.netherrack.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
-            tuftModelSet(shapes, Color.white.asInt) { netherrackTuftSprites[randomI()] }
+        val netherrackTuftModels by BetterFoliage.modelManager.lazy {
+            val shapes = Config.netherrack.let { tuftShapeSet(it.size, it.heightMin, it.heightMax, it.hOffset) }
+            tuftModelSet(shapes, Color.white, -1) { netherrackTuftSprites[randomI()] }
                 .transform { rotate(Rotation.fromUp[DOWN.ordinal]).rotateUV(2) }
-                .withOpposites()
-                .build(BlockRenderLayer.CUTOUT_MIPPED, flatLighting = false)
+                .buildTufts()
         }
     }
 }

src/main/kotlin/mods/betterfoliage/render/block/vanilla/RoundLog.kt

@@ -1,42 +1,53 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.render.column.*
+import mods.betterfoliage.config.ACCEPTED_ROUND_LOG_MATERIALS
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.render.column.ColumnBlockKey
+import mods.betterfoliage.render.column.ColumnMeshSet
+import mods.betterfoliage.render.column.ColumnModelBase
+import mods.betterfoliage.render.column.ColumnRenderLayer
+import mods.betterfoliage.resource.discovery.ModelBakingContext
+import mods.betterfoliage.resource.discovery.ModelBakingKey
+import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
 import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.*
-import mods.betterfoliage.resource.model.meshifyStandard
-import mods.betterfoliage.util.LazyMap
-import mods.betterfoliage.util.get
+import mods.betterfoliage.util.lazyMap
 import mods.betterfoliage.util.tryDefault
 import net.minecraft.block.BlockState
-import net.minecraft.block.LogBlock
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.client.texture.SpriteAtlasTexture
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.Direction.Axis
-import java.util.function.Consumer
+import net.minecraft.block.RotatedPillarBlock
+import net.minecraft.util.Direction.Axis
+import net.minecraft.util.ResourceLocation
+import org.apache.logging.log4j.Level.INFO
 
-object RoundLogOverlayLayer : ColumnRenderLayer() {
-    override fun getColumnKey(state: BlockState) = BetterFoliage.modelReplacer.getTyped<ColumnBlockKey>(state)
-    override val connectSolids: Boolean get() = BetterFoliage.config.roundLogs.connectSolids
-    override val lenientConnect: Boolean get() = BetterFoliage.config.roundLogs.lenientConnect
-    override val defaultToY: Boolean get() = BetterFoliage.config.roundLogs.defaultY
+interface RoundLogKey : ColumnBlockKey, ModelBakingKey {
+    val barkSprite: ResourceLocation
+    val endSprite: ResourceLocation
 }
 
-object StandardLogDiscovery : ConfigurableModelDiscovery() {
-    override val logger = BetterFoliage.logDetail
-    override val matchClasses: ConfigurableBlockMatcher get() = BetterFoliage.blockConfig.logBlocks
-    override val modelTextures: List<ModelTextureList> get() = BetterFoliage.blockConfig.logModels.modelList
+object RoundLogOverlayLayer : ColumnRenderLayer() {
+    override fun getColumnKey(state: BlockState) = BetterFoliage.blockTypes.getTypedOrNull<ColumnBlockKey>(state)
+    override val connectSolids: Boolean get() = Config.roundLogs.connectSolids
+    override val lenientConnect: Boolean get() = Config.roundLogs.lenientConnect
+    override val defaultToY: Boolean get() = Config.roundLogs.defaultY
+}
 
-    override fun processModel(state: BlockState, textures: List<String>, atlas: Consumer<Identifier>): BlockRenderKey? {
-        val axis = getAxis(state)
-        log("       axis $axis")
-        return RoundLogModel.Key(axis, Identifier(textures[0]), Identifier(textures[1]))
+object StandardRoundLogDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        val barkSprite = params.location("texture-side") ?: return
+        val endSprite = params.location("texture-end") ?: return
+        val axis = getAxis(ctx.blockState)
+
+        detailLogger.log(INFO, "       axis $axis, material ${ctx.blockState.material}")
+        if (!Config.roundLogs.plantsOnly || ctx.blockState.material in ACCEPTED_ROUND_LOG_MATERIALS)
+            ctx.addReplacement(StandardRoundLogKey(axis, barkSprite, endSprite))
     }
 
     fun getAxis(state: BlockState): Axis? {
-        val axis = tryDefault(null) { state.get(LogBlock.AXIS).toString() } ?:
-        state.entries.entries.find { it.key.getName().toLowerCase() == "axis" }?.value?.toString()
+        val axis = tryDefault(null) { state.getValue(RotatedPillarBlock.AXIS).toString() } ?:
+        state.values.entries.find { it.key.name.toLowerCase() == "axis" }?.value?.toString()
         return when (axis) {
             "x" -> Axis.X
             "y" -> Axis.Y
@@ -46,32 +57,30 @@ object StandardLogDiscovery : ConfigurableModelDiscovery() {
     }
 }
 
-interface RoundLogKey : ColumnBlockKey, BlockRenderKey {
-    val barkSprite: Identifier
-    val endSprite: Identifier
+data class StandardRoundLogKey(
+    override val axis: Axis?,
+    override val barkSprite: ResourceLocation,
+    override val endSprite: ResourceLocation
+) : RoundLogKey, HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel) = StandardRoundLogModel(this, wrapped)
 }
 
-class RoundLogModel(val key: Key, wrapped: BakedModel) : ColumnModelBase(wrapped) {
-    override val enabled: Boolean get() = BetterFoliage.config.enabled && BetterFoliage.config.roundLogs.enabled
+class StandardRoundLogModel(
+    val key: StandardRoundLogKey,
+    wrapped: SpecialRenderModel
+) : ColumnModelBase(wrapped) {
+    override val enabled: Boolean get() = Config.enabled && Config.roundLogs.enabled
     override val overlayLayer: ColumnRenderLayer get() = RoundLogOverlayLayer
-    override val connectPerpendicular: Boolean get() = BetterFoliage.config.roundLogs.connectPerpendicular
+    override val connectPerpendicular: Boolean get() = Config.roundLogs.connectPerpendicular
 
     val modelSet by modelSets.delegate(key)
     override fun getMeshSet(axis: Axis, quadrant: Int) = modelSet
 
-    data class Key(
-        override val axis: Axis?,
-        override val barkSprite: Identifier,
-        override val endSprite: Identifier
-    ) : RoundLogKey {
-        override fun replace(model: BakedModel, state: BlockState) = RoundLogModel(this, meshifyStandard(model, state))
-    }
-
     companion object {
-        val modelSets = LazyMap(BetterFoliage.modelReplacer) { key: Key ->
-            val barkSprite = Atlas.BLOCKS.atlas[key.barkSprite]!!
-            val endSprite = Atlas.BLOCKS.atlas[key.endSprite]!!
-            BetterFoliage.config.roundLogs.let { config ->
+        val modelSets = BetterFoliage.modelManager.lazyMap { key: StandardRoundLogKey ->
+            val barkSprite = Atlas.BLOCKS[key.barkSprite]
+            val endSprite = Atlas.BLOCKS[key.endSprite]
+            Config.roundLogs.let { config ->
                 ColumnMeshSet(
                     config.radiusSmall, config.radiusLarge, config.zProtection,
                     key.axis ?: Axis.Y,
@@ -81,4 +90,4 @@ class RoundLogModel(val key: Key, wrapped: BakedModel) : ColumnModelBase(wrapped
             }
         }
     }
-}
+}

src/main/kotlin/mods/betterfoliage/render/block/vanilla/Sand.kt

@@ -1,94 +1,127 @@
 package mods.betterfoliage.render.block.vanilla
 
 import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.chunk.CachedBlockCtx
-import mods.betterfoliage.render.SALTWATER_BIOMES
-import mods.betterfoliage.render.SAND_BLOCKS
-import mods.betterfoliage.render.lighting.withLighting
-import mods.betterfoliage.render.lighting.grassTuftLighting
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.resource.discovery.BlockRenderKey
-import mods.betterfoliage.resource.discovery.ModelDiscoveryBase
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.config.SALTWATER_BIOMES
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.HalfBakedWrapperKey
+import mods.betterfoliage.model.Quad
+import mods.betterfoliage.model.SpecialRenderData
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.model.bake
+import mods.betterfoliage.model.buildTufts
+import mods.betterfoliage.model.transform
+import mods.betterfoliage.model.tuftModelSet
+import mods.betterfoliage.model.tuftShapeSet
+import mods.betterfoliage.render.lighting.LightingPreferredFace
+import mods.betterfoliage.render.pipeline.Layers
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import mods.betterfoliage.render.pipeline.extendLayers
+import mods.betterfoliage.resource.discovery.ModelBakingContext
 import mods.betterfoliage.resource.discovery.ModelDiscoveryContext
-import mods.betterfoliage.resource.model.*
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockRenderLayer.CUTOUT_MIPPED
-import net.minecraft.block.BlockState
-import net.minecraft.block.Material
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.UP
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
+import mods.betterfoliage.resource.discovery.ParametrizedModelDiscovery
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.Rotation
+import mods.betterfoliage.util.allDirections
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.idx
+import mods.betterfoliage.util.lazy
+import mods.betterfoliage.util.mapArray
+import mods.betterfoliage.util.randomB
+import mods.betterfoliage.util.randomD
+import mods.betterfoliage.util.randomI
+import net.minecraft.block.material.Material
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction
+import net.minecraft.util.Direction.UP
+import net.minecraft.util.ResourceLocation
+import java.util.Random
 
-object SandKey : BlockRenderKey {
-    override fun replace(model: BakedModel, state: BlockState) = SandModel(meshifyStandard(model, state))
+object StandardSandDiscovery : ParametrizedModelDiscovery() {
+    override fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>) {
+        ctx.addReplacement(StandardSandKey)
+        ctx.blockState.block.extendLayers()
+    }
 }
 
-object SandDiscovery : ModelDiscoveryBase() {
-    override val logger = BetterFoliage.logDetail
-
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: Consumer<Identifier>) =
-        if (ctx.state.block in SAND_BLOCKS) SandKey else null
+object StandardSandKey : HalfBakedWrapperKey() {
+    override fun bake(ctx: ModelBakingContext, wrapped: SpecialRenderModel) = StandardSandModel(wrapped)
 }
 
-class SandModel(wrapped: BakedModel) : WrappedBakedModel(wrapped) {
+class SandRenderData(
+    val crustIdx: Array<Int?>,
+    val tuftIdx: Array<Int?>
+): SpecialRenderData {
+    override fun canRenderInLayer(layer: RenderType) = when {
+        (crustIdx.any { it != null } || tuftIdx.any { it != null }) && layer == Layers.coral -> true
+        else -> false
+    }
+}
 
-    val coralLighting = allDirections.map { grassTuftLighting(it) }.toTypedArray()
+class StandardSandModel(
+    wrapped: SpecialRenderModel
+) : HalfBakedSpecialWrapper(wrapped) {
+    val coralLighting = Direction.values().mapArray { LightingPreferredFace(it) }
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
+    override fun prepare(ctx: BlockCtx, random: Random): Any {
+        if (!Config.enabled) return Unit
+        if (!Config.coral.enabled(random)) return Unit
+        if (ctx.biome?.biomeCategory !in SALTWATER_BIOMES) return Unit
 
-        val ctx = CachedBlockCtx(blockView, pos)
-
-        val random = randomSupplier.get()
-        if (!BetterFoliage.config.enabled || !BetterFoliage.config.coral.enabled(random)) return
-        if (ctx.biome.category !in SALTWATER_BIOMES) return
-
-        allDirections.filter { random.nextInt(64) < BetterFoliage.config.coral.chance }.forEach { face ->
+        val crustIdx = Array<Int?>(6) { null }
+        val tuftIdx = Array<Int?>(6) { null }
+        allDirections.filter { random.nextInt(64) < Config.coral.chance }.forEach { face ->
             val isWater = ctx.state(face).material == Material.WATER
             val isDeepWater = isWater && ctx.offset(face).state(UP).material == Material.WATER
-            if (isDeepWater) context.withLighting(coralLighting[face]) {
-                it.accept(coralCrustModels[face][random])
-                it.accept(coralTuftModels[face][random])
+            if (isDeepWater) {
+                crustIdx[face.ordinal] = random.idx(coralCrustModels)
+                tuftIdx[face.ordinal] = random.idx(coralTuftModels)
+            }
+        }
+        return SandRenderData(crustIdx, tuftIdx)
+    }
+
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        super.renderLayer(ctx, data, layer)
+        if (data is SandRenderData && layer == Layers.coral) {
+            for (face in 0 until 6) {
+                ctx.vertexLighter = coralLighting[face]
+                data.crustIdx[face]?.let { ctx.renderQuads(coralCrustModels[face][it]) }
+                data.tuftIdx[face]?.let { ctx.renderQuads(coralTuftModels[face][it]) }
             }
         }
     }
 
     companion object {
-//        val sandModel by LazyInvalidatable(BetterFoliage.modelReplacer) {
-//            Array(64) { fullCubeTextured(Identifier("block/sand"), Color.white.asInt) }
-//        }
-
         val coralTuftSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_coral_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_coral_$idx")
         }
         val coralCrustSprites by SpriteSetDelegate(Atlas.BLOCKS) { idx ->
-            Identifier(BetterFoliage.MOD_ID, "blocks/better_crust_$idx")
+            ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/better_crust_$idx")
         }
-        val coralTuftModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
-            val shapes = BetterFoliage.config.coral.let { tuftShapeSet(it.size, 1.0, 1.0, it.hOffset) }
-            allDirections.map { face ->
-                tuftModelSet(shapes, Color.white.asInt) { coralTuftSprites[randomI()] }
+        val coralTuftModels by BetterFoliage.modelManager.lazy {
+            val shapes = Config.coral.let { tuftShapeSet(it.size, 1.0, 1.0, it.hOffset) }
+            allDirections.mapArray { face ->
+                tuftModelSet(shapes, Color.white, -1) { coralTuftSprites[randomI()] }
                     .transform { rotate(Rotation.fromUp[face]) }
-                    .withOpposites()
-                    .build(CUTOUT_MIPPED)
-            }.toTypedArray()
+                    .buildTufts()
+            }
         }
-        val coralCrustModels by LazyInvalidatable(BetterFoliage.modelReplacer) {
+        val coralCrustModels by BetterFoliage.modelManager.lazy {
             allDirections.map { face ->
                 Array(64) { idx ->
-                    listOf(horizontalRectangle(x1 = -0.5, x2 = 0.5, z1 = -0.5, z2 = 0.5, y = 0.0)
-                        .scale(BetterFoliage.config.coral.crustSize)
-                        .move(0.5 + randomD(0.01, BetterFoliage.config.coral.vOffset) to UP)
-                        .rotate(Rotation.fromUp[face])
-                        .mirrorUV(randomB(), randomB()).rotateUV(randomI(max = 4))
-                        .sprite(coralCrustSprites[idx]).colorAndIndex(null)
-                    ).build(CUTOUT_MIPPED)
+                    listOf(
+                        Quad.horizontalRectangle(x1 = -0.5, x2 = 0.5, z1 = -0.5, z2 = 0.5, y = 0.0)
+                            .scale(Config.coral.crustSize)
+                            .move(0.5 + randomD(0.01, Config.coral.vOffset) to UP)
+                            .rotate(Rotation.fromUp[face])
+                            .mirrorUV(randomB(), randomB()).rotateUV(randomI(max = 4))
+                            .sprite(coralCrustSprites[idx]).colorAndIndex(null)
+                    ).bake(applyDiffuseLighting = false)
                 }
             }.toTypedArray()
         }

src/main/kotlin/mods/betterfoliage/render/column/ColumnMeshSet.kt

@@ -1,14 +1,22 @@
 package mods.betterfoliage.render.column
 
-import mods.betterfoliage.BetterFoliage
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.Quad
+import mods.betterfoliage.model.UV
+import mods.betterfoliage.model.Vertex
+import mods.betterfoliage.model.bake
 import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType
-import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.*
-import mods.betterfoliage.resource.model.*
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.INVISIBLE
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.LARGE_RADIUS
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.SMALL_RADIUS
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.SQUARE
 import mods.betterfoliage.util.Double3
 import mods.betterfoliage.util.Rotation
-import net.minecraft.block.BlockRenderLayer.SOLID
-import net.minecraft.client.texture.Sprite
-import net.minecraft.util.math.Direction.*
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.util.Direction.Axis
+import net.minecraft.util.Direction.EAST
+import net.minecraft.util.Direction.SOUTH
+import net.minecraft.util.Direction.UP
 
 /**
  * Collection of dynamically generated meshes used to render rounded columns.
@@ -18,20 +26,20 @@ class ColumnMeshSet(
     radiusLarge: Double,
     zProtection: Double,
     val axis: Axis,
-    val spriteLeft: Sprite,
-    val spriteRight: Sprite,
-    val spriteTop: Sprite,
-    val spriteBottom: Sprite
+    val spriteLeft: TextureAtlasSprite,
+    val spriteRight: TextureAtlasSprite,
+    val spriteTop: TextureAtlasSprite,
+    val spriteBottom: TextureAtlasSprite
 ) {
     protected fun sideRounded(radius: Double, yBottom: Double, yTop: Double): List<Quad> {
         val halfRadius = radius * 0.5
         return listOf(
             // left side of the diagonal
-            verticalRectangle(0.0, 0.5, 0.5 - radius, 0.5, yBottom, yTop).clampUV(minU = 0.0, maxU = 0.5 - radius),
-            verticalRectangle(0.5 - radius, 0.5, 0.5 - halfRadius, 0.5 - halfRadius, yBottom, yTop).clampUV(minU = 0.5 - radius),
+            Quad.verticalRectangle(0.0, 0.5, 0.5 - radius, 0.5, yBottom, yTop).clampUV(minU = 0.0, maxU = 0.5 - radius),
+            Quad.verticalRectangle(0.5 - radius, 0.5, 0.5 - halfRadius, 0.5 - halfRadius, yBottom, yTop).clampUV(minU = 0.5 - radius),
             // right side of the diagonal
-            verticalRectangle(0.5 - halfRadius, 0.5 - halfRadius, 0.5, 0.5 - radius, yBottom, yTop).clampUV(maxU = radius - 0.5),
-            verticalRectangle(0.5, 0.5 - radius, 0.5, 0.0, yBottom, yTop).clampUV(minU = radius - 0.5, maxU = 0.0)
+            Quad.verticalRectangle(0.5 - halfRadius, 0.5 - halfRadius, 0.5, 0.5 - radius, yBottom, yTop).clampUV(maxU = radius - 0.5),
+            Quad.verticalRectangle(0.5, 0.5 - radius, 0.5, 0.0, yBottom, yTop).clampUV(minU = radius - 0.5, maxU = 0.0)
         )
     }
 
@@ -45,8 +53,8 @@ class ColumnMeshSet(
     }
 
     protected fun sideSquare(yBottom: Double, yTop: Double) = listOf(
-        verticalRectangle(0.0, 0.5, 0.5, 0.5, yBottom, yTop).clampUV(minU = 0.0),
-        verticalRectangle(0.5, 0.5, 0.5, 0.0, yBottom, yTop).clampUV(maxU = 0.0)
+        Quad.verticalRectangle(0.0, 0.5, 0.5, 0.5, yBottom, yTop).clampUV(minU = 0.0),
+        Quad.verticalRectangle(0.5, 0.5, 0.5, 0.0, yBottom, yTop).clampUV(maxU = 0.0)
     )
 
     protected fun lidRounded(radius: Double, y: Double, isBottom: Boolean) = Array(4) { quadrant ->
@@ -58,18 +66,18 @@ class ColumnMeshSet(
         val v5 = Vertex(Double3(0.5, y, 0.5 - radius), UV(0.5, 0.5 - radius))
         val v6 = Vertex(Double3(0.5, y, 0.0), UV(0.5, 0.0))
         listOf(Quad(v1, v2, v3, v4), Quad(v1, v4, v5, v6))
-            .map { it.cycleVertices(if (isBottom xor BetterFoliage.config.nVidia) 0 else 1) }
+            .map { it.cycleVertices(if (isBottom xor Config.nVidia) 0 else 1) }
             .map { it.rotate(rotation).rotateUV(quadrant) }
-            .map { it.sprite(if (isBottom) spriteBottom else spriteTop).colorAndIndex(Color.white.asInt) }
+            .map { it.sprite(if (isBottom) spriteBottom else spriteTop) }
             .map { if (isBottom) it.flipped else it }
     }
 
     protected fun lidSquare(y: Double, isBottom: Boolean) = Array(4) { quadrant ->
         val rotation = baseRotation(axis) + quadrantRotations[quadrant]
         listOf(
-            horizontalRectangle(x1 = 0.0, x2 = 0.5, z1 = 0.0, z2 = 0.5, y = y).clampUV(minU = 0.0, minV = 0.0)
+            Quad.horizontalRectangle(x1 = 0.0, x2 = 0.5, z1 = 0.0, z2 = 0.5, y = y).clampUV(minU = 0.0, minV = 0.0)
                 .rotate(rotation).rotateUV(quadrant)
-                .sprite(if (isBottom) spriteBottom else spriteTop).colorAndIndex(Color.white.asInt)
+                .sprite(if (isBottom) spriteBottom else spriteTop)
                 .let { if (isBottom) it.flipped else it }
         )
     }
@@ -84,9 +92,9 @@ class ColumnMeshSet(
     }
     protected fun List<Quad>.buildSides(quadsPerSprite: Int) = Array(4) { quadrant ->
         val rotation = baseRotation(axis) + quadrantRotations[quadrant]
-        this.map { it.rotate(rotation).colorAndIndex(Color.white.asInt) }
+        this.map { it.rotate(rotation) }
             .mapIndexed { idx, q -> if (idx % (2 * quadsPerSprite) >= quadsPerSprite) q.sprite(spriteRight) else q.sprite(spriteLeft) }
-            .build(SOLID, flatLighting = false)
+            .bake(false)
     }
 
     companion object {
@@ -114,13 +122,13 @@ class ColumnMeshSet(
     val sideExtendBottomRoundSmall = sideRounded(radiusSmall, -0.5 - radiusLarge, -0.5).extendBottom(radiusLarge).buildSides(quadsPerSprite = 2)
     val sideExtendBottomRoundLarge = sideRounded(radiusLarge, -0.5 - radiusLarge, -0.5).extendBottom(radiusLarge).buildSides(quadsPerSprite = 2)
 
-    val lidTopSquare = lidSquare(0.5, false).build(SOLID, flatLighting = false)
-    val lidTopRoundSmall = lidRounded(radiusSmall, 0.5, false).build(SOLID, flatLighting = false)
-    val lidTopRoundLarge = lidRounded(radiusLarge, 0.5, false).build(SOLID, flatLighting = false)
+    val lidTopSquare = lidSquare(0.5, false).bake(false)
+    val lidTopRoundSmall = lidRounded(radiusSmall, 0.5, false).bake(false)
+    val lidTopRoundLarge = lidRounded(radiusLarge, 0.5, false).bake(false)
 
-    val lidBottomSquare = lidSquare(-0.5, true).build(SOLID, flatLighting = false)
-    val lidBottomRoundSmall = lidRounded(radiusSmall, -0.5, true).build(SOLID, flatLighting = false)
-    val lidBottomRoundLarge = lidRounded(radiusLarge, -0.5, true).build(SOLID, flatLighting = false)
+    val lidBottomSquare = lidSquare(-0.5, true).bake(false)
+    val lidBottomRoundSmall = lidRounded(radiusSmall, -0.5, true).bake(false)
+    val lidBottomRoundLarge = lidRounded(radiusLarge, -0.5, true).bake(false)
 
     val transitionTop = sideRoundedTransition(radiusLarge, radiusSmall, -0.5, 0.5).buildSides(quadsPerSprite = 2)
     val transitionBottom = sideRoundedTransition(radiusSmall, radiusLarge, -0.5, 0.5).buildSides(quadsPerSprite = 2)

src/main/kotlin/mods/betterfoliage/render/column/ColumnModel.kt

@@ -1,43 +1,49 @@
 package mods.betterfoliage.render.column
 
-import mods.betterfoliage.chunk.CachedBlockCtx
 import mods.betterfoliage.chunk.ChunkOverlayManager
+import mods.betterfoliage.model.HalfBakedSpecialWrapper
+import mods.betterfoliage.model.SpecialRenderModel
 import mods.betterfoliage.render.column.ColumnLayerData.NormalRender
-import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.*
-import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.*
-import mods.betterfoliage.resource.model.WrappedBakedModel
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockState
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.Axis
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Supplier
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.NONSOLID
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.PARALLEL
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.PERPENDICULAR
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.INVISIBLE
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.LARGE_RADIUS
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.SMALL_RADIUS
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.SQUARE
+import mods.betterfoliage.render.lighting.ColumnLighting
+import mods.betterfoliage.render.pipeline.RenderCtxBase
+import net.minecraft.client.renderer.RenderType
+import net.minecraft.util.Direction.Axis
+
+abstract class ColumnModelBase(
+    wrapped: SpecialRenderModel
+) : HalfBakedSpecialWrapper(wrapped) {
 
-abstract class ColumnModelBase(wrapped: BakedModel) : WrappedBakedModel(wrapped) {
     abstract val enabled: Boolean
     abstract val overlayLayer: ColumnRenderLayer
     abstract val connectPerpendicular: Boolean
     abstract fun getMeshSet(axis: Axis, quadrant: Int): ColumnMeshSet
 
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        val ctx = CachedBlockCtx(blockView, pos)
-        val roundLog = ChunkOverlayManager.get(overlayLayer, ctx)
-
+    override fun renderLayer(ctx: RenderCtxBase, data: Any, layer: RenderType) {
+        if (!enabled) return super.renderLayer(ctx, data, layer)
+        
+        val roundLog = overlayLayer[ctx]
         when(roundLog) {
             ColumnLayerData.SkipRender -> return
-            NormalRender -> return super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
+            NormalRender -> return super.renderLayer(ctx, data, layer)
             ColumnLayerData.ResolveError, null -> {
-                return super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
+                return super.renderLayer(ctx, data, layer)
             }
         }
 
         // if log axis is not defined and "Default to vertical" config option is not set, render normally
         if ((roundLog as ColumnLayerData.SpecialRender).column.axis == null && !overlayLayer.defaultToY) {
-            return super.emitBlockQuads(blockView, state, pos, randomSupplier, context)
+            return super.renderLayer(ctx, data, layer)
         }
 
+        ctx.vertexLighter = ColumnLighting
+
         val axis = roundLog.column.axis ?: Axis.Y
         val baseRotation = ColumnMeshSet.baseRotation(axis)
         ColumnMeshSet.quadrantRotations.forEachIndexed { idx, quadrantRotation ->
@@ -56,8 +62,8 @@ abstract class ColumnModelBase(wrapped: BakedModel) : WrappedBakedModel(wrapped)
             val sideMesh = when (roundLog.quadrants[idx]) {
                 SMALL_RADIUS -> meshSet.sideRoundSmall[idx]
                 LARGE_RADIUS -> if (roundLog.upType == PARALLEL && roundLog.quadrantsTop[idx] == SMALL_RADIUS) meshSet.transitionTop[idx]
-                    else if (roundLog.downType == PARALLEL && roundLog.quadrantsBottom[idx] == SMALL_RADIUS) meshSet.transitionBottom[idx]
-                    else meshSet.sideRoundLarge[idx]
+                else if (roundLog.downType == PARALLEL && roundLog.quadrantsBottom[idx] == SMALL_RADIUS) meshSet.transitionBottom[idx]
+                else meshSet.sideRoundLarge[idx]
                 SQUARE -> meshSet.sideSquare[idx]
                 else -> null
             }
@@ -99,10 +105,10 @@ abstract class ColumnModelBase(wrapped: BakedModel) : WrappedBakedModel(wrapped)
             }
 
             // render
-            sideMesh?.let { context.meshConsumer().accept(it) }
-            upMesh?.let { context.meshConsumer().accept(it) }
-            downMesh?.let { context.meshConsumer().accept(it) }
-
+            sideMesh?.let { ctx.renderQuads(it) }
+            upMesh?.let { ctx.renderQuads(it) }
+            downMesh?.let { ctx.renderQuads(it) }
         }
+
     }
 }

src/main/kotlin/mods/betterfoliage/render/column/ColumnOverlayLayer.kt

@@ -1,19 +1,29 @@
 package mods.betterfoliage.render.column
 
-import mods.betterfoliage.BetterFoliage
+import mods.betterfoliage.chunk.BlockCtx
 import mods.betterfoliage.chunk.ChunkOverlayLayer
 import mods.betterfoliage.chunk.ChunkOverlayManager
 import mods.betterfoliage.chunk.dimType
-import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.*
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.NONSOLID
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.PARALLEL
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.PERPENDICULAR
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.BlockType.SOLID
 import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType
-import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.*
-import mods.betterfoliage.chunk.BlockCtx
-import mods.betterfoliage.util.*
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.INVISIBLE
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.LARGE_RADIUS
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.SMALL_RADIUS
+import mods.betterfoliage.render.column.ColumnLayerData.SpecialRender.QuadrantType.SQUARE
+import mods.betterfoliage.util.Int3
+import mods.betterfoliage.util.Rotation
+import mods.betterfoliage.util.allDirections
+import mods.betterfoliage.util.face
+import mods.betterfoliage.util.plus
 import net.minecraft.block.BlockState
+import net.minecraft.util.Direction
+import net.minecraft.util.Direction.Axis
 import net.minecraft.util.math.BlockPos
-import net.minecraft.util.math.Direction.Axis
-import net.minecraft.util.math.Direction.AxisDirection
-import net.minecraft.world.ExtendedBlockView
+import net.minecraft.world.IBlockDisplayReader
 
 /** Index of SOUTH-EAST quadrant. */
 const val SE = 0
@@ -63,7 +73,7 @@ sealed class ColumnLayerData {
     object ResolveError : ColumnLayerData()
 }
 
-abstract class ColumnRenderLayer : ChunkOverlayLayer<ColumnLayerData> {
+abstract class ColumnRenderLayer : ChunkOverlayLayer<ColumnLayerData>() {
 
     abstract val connectSolids: Boolean
     abstract val lenientConnect: Boolean
@@ -73,21 +83,20 @@ abstract class ColumnRenderLayer : ChunkOverlayLayer<ColumnLayerData> {
 
     val allNeighborOffsets = (-1..1).flatMap { offsetX -> (-1..1).flatMap { offsetY -> (-1..1).map { offsetZ -> Int3(offsetX, offsetY, offsetZ) }}}
 
-    override fun onBlockUpdate(world: ExtendedBlockView, pos: BlockPos) {
-        allNeighborOffsets.forEach { offset -> ChunkOverlayManager.clear(world.dimType, this, pos + offset) }
+    override fun onBlockUpdate(world: IBlockDisplayReader, pos: BlockPos) {
+        allNeighborOffsets.forEach { offset -> remove(world, pos + offset) }
     }
 
     override fun calculate(ctx: BlockCtx): ColumnLayerData {
-        if (allDirections.all { ctx.offset(it).isNormalCube }) return ColumnLayerData.SkipRender
-//        val columnTextures = registry[ctx] ?: return ColumnLayerData.ResolveError
+        // TODO detect round logs
+        if (allDirections.all { dir -> ctx.offset(dir).let { it.isFullBlock } }) return ColumnLayerData.SkipRender
         val columnTextures = getColumnKey(ctx.state) ?: return ColumnLayerData.ResolveError
 
         // if log axis is not defined and "Default to vertical" config option is not set, render normally
         val logAxis = columnTextures.axis ?: if (defaultToY) Axis.Y else return ColumnLayerData.NormalRender
 
         // check log neighborhood
-        val baseRotation = Rotation.fromUp[(logAxis to AxisDirection.POSITIVE).face.ordinal]
-
+        val baseRotation = Rotation.fromUp[(logAxis to Direction.AxisDirection.POSITIVE).face.ordinal]
         val upType = ctx.blockType(baseRotation, logAxis, Int3(0, 1, 0))
         val downType = ctx.blockType(baseRotation, logAxis, Int3(0, -1, 0))
 
@@ -176,9 +185,9 @@ abstract class ColumnRenderLayer : ChunkOverlayLayer<ColumnLayerData> {
         val offsetRot = offset.rotate(rotation)
         val key = getColumnKey(state(offsetRot))
         return if (key == null) {
-            if (offset(offsetRot).isNormalCube) SOLID else NONSOLID
+            if (offset(offsetRot).isFullBlock) SOLID else NONSOLID
         } else {
-            (key.axis ?: if (BetterFoliage.config.roundLogs.defaultY) Axis.Y else null)?.let {
+            (key.axis ?: if (Config.roundLogs.defaultY) Axis.Y else null)?.let {
                 if (it == axis) PARALLEL else PERPENDICULAR
             } ?: SOLID
         }

src/main/kotlin/mods/betterfoliage/render/lighting/AoSideHelper.kt

@@ -0,0 +1,138 @@
+package mods.betterfoliage.render.lighting
+
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.mapArray
+import mods.betterfoliage.util.perpendiculars
+import net.minecraft.util.Direction
+import net.minecraft.util.Direction.*
+
+typealias BoxCorner = Triple<Direction, Direction, Direction>
+fun BoxCorner.equalsUnordered(other: BoxCorner) = contains(other.first) && contains(other.second) && contains(other.third)
+
+fun BoxCorner.contains(dir: Direction) = first == dir || second == dir || third == dir
+
+fun Array<BoxCorner>.findIdx(corner: BoxCorner): Int? {
+    forEachIndexed { idx, test -> if (test.contains(corner.first) && test.contains(corner.second) && test.contains(corner.third)) return idx }
+    return null
+}
+fun Array<BoxCorner>.findIdx(predicate: (BoxCorner)->Boolean): Int? {
+    forEachIndexed { idx, test -> if (predicate(test)) return idx }
+    return null
+}
+
+class AoSideHelper private constructor(face: Direction) {
+    val sides = faceSides[face]
+    val cornerSideDirections = faceCorners[face]
+    val aoIndex = faceCornersIdx.mapArray { corner ->
+        boxCornersDirIdx[face][sides[corner.first]][sides[corner.second]]!!
+    }
+
+    companion object {
+        /**
+         * Indexing for undirected box corners (component order does not matter).
+         * Array contains [Direction] triplets fully defining the corner.
+         */
+        @JvmField
+        val boxCornersUndir = Array(8) { idx -> Triple(
+            if (idx and 1 != 0) EAST else WEST,
+            if (idx and 2 != 0) UP else DOWN,
+            if (idx and 4 != 0) SOUTH else NORTH
+        ) }
+
+        /**
+         * Reverse lookup for [boxCornersUndir]. Index 3 times with the corner's cardinal directions.
+         *  A null value indicates an invalid corner (multiple indexing along the same axis)
+         */
+        @JvmField
+        val boxCornersUndirIdx = Array(6) { idx1 -> Array(6) { idx2 -> Array(6) { idx3 ->
+            boxCornersUndir.findIdx(BoxCorner(
+                Direction.values()[idx1],
+                Direction.values()[idx2],
+                Direction.values()[idx3]
+            ))
+        } } }
+
+        /**
+         * Indexing for directed face sides
+         * First index is the face, second is index of side on face
+         */
+        @JvmField
+        val faceSides = Array(6) { faceIdx -> Array(4) { sideIdx ->
+            Direction.values()[faceIdx].perpendiculars[sideIdx]
+        } }
+
+        /**
+         * Pairs of [faceSides] side indexes that form a valid pair describing a corner
+         */
+        @JvmField
+        val faceCornersIdx = arrayOf(0 to 2, 0 to 3, 1 to 2, 1 to 3)
+
+        /**
+         * Indexing for directed face corners
+         * First index is the face, second is index of corner on face
+         */
+        @JvmField
+        val faceCorners = Array(6) { faceIdx -> Array(4) { cornerIdx ->
+            faceCornersIdx[cornerIdx].let { faceSides[faceIdx][it.first] to faceSides[faceIdx][it.second] }
+        } }
+
+        /**
+         * Indexing scheme for directed box corners.
+         * The first direction - the face - matters, the other two are unordered.
+         * 1:1 correspondence with possible AO values.
+         * Array contains triplets defining the corner fully.
+         */
+        @JvmField
+        val boxCornersDir = Array(24) { idx ->
+            val faceIdx = idx / 4; val face = Direction.values()[faceIdx]
+            val cornerIdx = idx % 4; val corner = faceCorners[faceIdx][cornerIdx]
+            BoxCorner(face, corner.first, corner.second)
+        }
+
+        /**
+         * Reverse lookup for [boxCornersDir]. Index 3 times with the corner's cardinal directions.
+         * The first direction - the face - matters, the other two are unordered.
+         *  A null value indicates an invalid corner (multiple indexing along the same axis)
+         */
+        @JvmField
+        val boxCornersDirIdx = Array(6) { face -> Array(6) { side1 -> Array(6) { side2 ->
+            boxCornersDir.findIdx { boxCorner ->
+                boxCorner.first.ordinal == face && boxCorner.equalsUnordered(BoxCorner(
+                    Direction.values()[face],
+                    Direction.values()[side1],
+                    Direction.values()[side2]
+                ))
+            }
+        } } }
+
+        /**
+         * Reverse lookup for [cornersDir].
+         *   1st index: primary face
+         *   2nd index: undirected corner index.
+         *   value: directed corner index
+         *   A null value indicates an invalid corner (primary face not shared by corner).
+         */
+        @JvmField
+        val boxCornersDirFromUndir = Array(6) { faceIdx -> Array(8) { undirIdx ->
+            val face = Direction.values()[faceIdx]
+            val corner = boxCornersUndir[undirIdx]
+            if (!corner.contains(face)) null
+            else boxCornersDir.findIdx { it.first == face && it.equalsUnordered(corner) }
+        } }
+
+        @JvmField
+        val forSide = Direction.values().mapArray { AoSideHelper(it) }
+
+        /**
+         * Get corner index for vertex coordinates
+         */
+        @JvmStatic
+        fun getCornerUndir(x: Double, y: Double, z: Double): Int {
+            var result = 0
+            if (x > 0.0) result += 1
+            if (y > 0.0) result += 2
+            if (z > 0.0) result += 4
+            return result
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/render/lighting/CustomLighting.kt

@@ -1,140 +0,0 @@
-package mods.betterfoliage.render.lighting
-
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.mesh.QuadView
-import net.minecraft.util.math.Direction
-import net.minecraft.util.math.Direction.*
-import kotlin.math.abs
-
-val EPSILON = 0.05
-
-interface CustomLighting {
-    fun applyLighting(lighting: CustomLightingMeshConsumer, quad: QuadView, flat: Boolean, emissive: Boolean)
-}
-
-interface CustomLightingMeshConsumer {
-    /** Clear cached block brightness and AO values */
-    fun clearLighting()
-    /** Fill AO/light cache for given face */
-    fun fillAoData(lightFace: Direction)
-    /** Set AO/light values for quad vertex */
-    fun setLighting(vIdx: Int, ao: Float, light: Int)
-    /** Get neighbor block brightness */
-    fun brNeighbor(dir: Direction): Int
-    /** Block brightness value */
-    val brSelf: Int
-    /** Cached AO values for all box face corners */
-    val aoFull: FloatArray
-    /** Cached light values for all box face corners */
-    val lightFull: IntArray
-}
-
-/** Custom lighting used for protruding tuft quads (short grass, algae, cactus arms, etc.) */
-fun grassTuftLighting(lightFace: Direction) = object : CustomLighting {
-    override fun applyLighting(lighting: CustomLightingMeshConsumer, quad : QuadView, flat: Boolean, emissive: Boolean) {
-        if (flat) lighting.flatForceNeighbor(quad, lightFace) else lighting.smoothWithFaceOverride(quad, lightFace)
-    }
-}
-
-/** Custom lighting used for round leaves */
-fun roundLeafLighting() = object : CustomLighting {
-    override fun applyLighting(lighting: CustomLightingMeshConsumer, quad: QuadView, flat: Boolean, emissive: Boolean) {
-        if (flat) lighting.flatMax(quad) else lighting.smooth45PreferUp(quad)
-    }
-}
-
-/** Custom lighting used for reeds */
-fun reedLighting() = object : CustomLighting {
-    override fun applyLighting(lighting: CustomLightingMeshConsumer, quad: QuadView, flat: Boolean, emissive: Boolean) {
-        lighting.flatForceNeighbor(quad, UP)
-    }
-}
-
-/** Flat lighting, use neighbor brightness in the given direction */
-fun CustomLightingMeshConsumer.flatForceNeighbor(quad: QuadView, lightFace: Direction) {
-    for (vIdx in 0 until 4) {
-        setLighting(vIdx, 1.0f, brNeighbor(lightFace))
-    }
-}
-
-/** Smooth lighting, use *only* AO/light values on the given face (closest corner) */
-fun CustomLightingMeshConsumer.smoothWithFaceOverride(quad: QuadView, lightFace: Direction) {
-    fillAoData(lightFace)
-    forEachVertex(quad) { vIdx, x, y, z ->
-        val cornerUndir = getCornerUndir(x, y, z)
-        cornerDirFromUndir[lightFace.ordinal][cornerUndir]?.let { aoCorner ->
-            setLighting(vIdx, aoFull[aoCorner], lightFull[aoCorner])
-        }
-    }
-}
-
-/**
- * Smooth lighting scheme for 45-degree quads bisecting the box along 2 opposing face diagonals.
- *
- * Determine 2 *primary faces* based on the normal direction.
- * Take AO/light values *only* from the 2 primary faces *or* the UP direction,
- * based on which box corner is closest. Prefer taking values from the top face.
- */
-fun CustomLightingMeshConsumer.smooth45PreferUp(quad: QuadView) {
-    getAngles45(quad)?.let { normalFaces ->
-        fillAoData(normalFaces.first)
-        fillAoData(normalFaces.second)
-        if (normalFaces.first != UP && normalFaces.second != UP) fillAoData(UP)
-        forEachVertex(quad) { vIdx, x, y, z ->
-            val isUp = y > 0.5f
-            val cornerUndir = getCornerUndir(x, y, z)
-            val preferredFace = if (isUp) UP else normalFaces.minBy { faceDistance(it, x, y, z) }
-            val aoCorner = cornerDirFromUndir[preferredFace.ordinal][cornerUndir]!!
-            setLighting(vIdx, aoFull[aoCorner], lightFull[aoCorner])
-        }
-    }
-}
-
-/** Flat lighting, use maximum neighbor brightness at the nearest box corner */
-fun CustomLightingMeshConsumer.flatMax(quad: QuadView) {
-    forEachVertex(quad) { vIdx, x, y, z ->
-        val maxBrightness = cornersUndir[getCornerUndir(x, y, z)].maxValueBy { brNeighbor(it) }
-        setLighting(vIdx, 1.0f, maxBrightness)
-    }
-}
-
-/**
- * If the quad normal approximately bisects 2 axes at a 45 degree angle,
- * and is approximately perpendicular to the third, returns the 2 directions
- * the quad normal points towards.
- * Returns null otherwise.
- */
-fun getAngles45(quad: QuadView): Pair<Direction, Direction>? {
-    val normal = quad.faceNormal()
-    // one of the components must be close to zero
-    val zeroAxis = when {
-        abs(normal.x) < EPSILON -> Axis.X
-        abs(normal.y) < EPSILON -> Axis.Y
-        abs(normal.z) < EPSILON -> Axis.Z
-        else -> return null
-    }
-    // the other two must be of similar magnitude
-    val diff = when(zeroAxis) {
-        Axis.X -> abs(abs(normal.y) - abs(normal.z))
-        Axis.Y -> abs(abs(normal.x) - abs(normal.z))
-        Axis.Z -> abs(abs(normal.x) - abs(normal.y))
-    }
-    if (diff > EPSILON) return null
-    return when(zeroAxis) {
-        Axis.X -> Pair(if (normal.y > 0.0f) UP else DOWN, if (normal.z > 0.0f) SOUTH else NORTH)
-        Axis.Y -> Pair(if (normal.x > 0.0f) EAST else WEST, if (normal.z > 0.0f) SOUTH else NORTH)
-        Axis.Z -> Pair(if (normal.x > 0.0f) EAST else WEST, if (normal.y > 0.0f) UP else DOWN)
-    }
-}
-
-fun faceDistance(face: Direction, x: Float, y: Float, z: Float) = when(face) {
-    WEST -> x; EAST -> 1.0f - x
-    DOWN -> y; UP -> 1.0f - y
-    NORTH -> z; SOUTH -> 1.0f - z
-}
-
-inline fun forEachVertex(quad: QuadView, func: (vIdx: Int, x: Float, y: Float, z: Float)->Unit) {
-    for (vIdx in 0..3) {
-        func(vIdx, quad.x(vIdx), quad.y(vIdx), quad.z(vIdx))
-    }
-}

src/main/kotlin/mods/betterfoliage/render/lighting/ForgeVertexLighter.kt

@@ -0,0 +1,10 @@
+package mods.betterfoliage.render.lighting
+
+interface ForgeVertexLighterAccess {
+    var vertexLighter: ForgeVertexLighter
+}
+
+interface ForgeVertexLighter {
+    fun updateVertexLightmap(normal: FloatArray, lightmap: FloatArray, x: Float, y: Float, z: Float)
+    fun updateVertexColor(normal: FloatArray, color: FloatArray, x: Float, y: Float, z: Float, tint: Float, multiplier: Int)
+}

src/main/kotlin/mods/betterfoliage/render/lighting/Indigo.kt

@@ -1,53 +0,0 @@
-package mods.betterfoliage.render.lighting
-
-import mods.betterfoliage.util.reflectField
-import net.fabricmc.fabric.api.renderer.v1.mesh.Mesh
-import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.fabricmc.fabric.impl.client.indigo.renderer.aocalc.AoCalculator
-import net.fabricmc.fabric.impl.client.indigo.renderer.render.*
-import net.minecraft.block.BlockState
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.util.math.BlockPos
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Consumer
-import java.util.function.Supplier
-
-val MODIFIED_CONSUMER_POOL = ThreadLocal<ModifiedTerrainMeshConsumer>()
-
-fun TerrainMeshConsumer.modified() = MODIFIED_CONSUMER_POOL.get() ?: let {
-    val blockInfo = reflectField<TerrainBlockRenderInfo>("blockInfo")
-    val chunkInfo = reflectField<ChunkRenderInfo>("chunkInfo")
-    val aoCalc = reflectField<AoCalculator>("aoCalc")
-    val transform = reflectField<RenderContext.QuadTransform>("transform")
-    ModifiedTerrainMeshConsumer(blockInfo, chunkInfo, aoCalc, transform)
-}.apply { MODIFIED_CONSUMER_POOL.set(this) }
-
-/**
- * Render the given model at the given position.
- * Mutates the state of the [RenderContext]!!
- */
-fun RenderContext.renderMasquerade(model: BakedModel, blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) = when(this) {
-    is TerrainRenderContext -> {
-        val blockInfo = reflectField<TerrainBlockRenderInfo>("blockInfo")
-        blockInfo.prepareForBlock(state, pos, model.useAmbientOcclusion())
-        (model as FabricBakedModel).emitBlockQuads(blockView, state, pos, randomSupplier, context)
-    }
-    else -> {
-        (model as FabricBakedModel).emitBlockQuads(blockView, state, pos, randomSupplier, context)
-    }
-}
-
-/** Execute the provided block with a mesh consumer using the given custom lighting. */
-fun RenderContext.withLighting(lighter: CustomLighting, func: (Consumer<Mesh>)->Unit) = when(this) {
-    is TerrainRenderContext -> {
-        val consumer = (meshConsumer() as TerrainMeshConsumer).modified()
-        consumer.clearLighting()
-        consumer.lighter = lighter
-        func(consumer)
-        consumer.lighter = null
-    }
-    else -> func(meshConsumer())
-}

src/main/kotlin/mods/betterfoliage/render/lighting/VanillaAoCalculation.kt

@@ -0,0 +1,152 @@
+package mods.betterfoliage.render.lighting
+
+import mods.betterfoliage.chunk.BlockCtx
+import net.minecraft.block.BlockState
+import net.minecraft.client.renderer.BlockModelRenderer
+import net.minecraft.util.Direction
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.IBlockDisplayReader
+
+data class LightingData(
+    @JvmField var packedLight: Int = 0,
+    @JvmField var colorMultiplier: Float = 1.0f
+) {
+    fun mixFrom(corner: LightingData, side1: LightingData, side2: LightingData, center: LightingData) {
+        colorMultiplier =
+            (center.colorMultiplier + side1.colorMultiplier + side2.colorMultiplier + corner.colorMultiplier) * 0.25f
+        packedLight = (
+                center.packedLight +
+                (side1.packedLight.takeUnless { it == 0 } ?: center.packedLight) +
+                (side2.packedLight.takeUnless { it == 0 } ?: center.packedLight) +
+                (corner.packedLight.takeUnless { it == 0 } ?: center.packedLight)
+            ).let { sum -> (sum shr 2) and 0xFF00FF }
+    }
+}
+
+// Vanilla has a very suspicious-looking offset here, which Indigo gets rid of and calls it a fix
+// Naturally, we're going to believe Indigo, it's a hardcoded option for now
+const val OCCLUSION_OFFSET_FIX = true
+
+/**
+ * Replacement for [BlockModelRenderer.AmbientOcclusionFace]
+ * This gets called on a LOT, so object instantiation is avoided.
+ * Not thread-safe, always use a [ThreadLocal] instance
+ */
+class VanillaAoCalculator {
+    lateinit var world: IBlockDisplayReader
+
+    /** [blockPos] is used to get block-related information (i.e. tint, opacity, etc.)
+     *  [lightPos] is used to get light-related information
+     *  this facilitates masquerade rendering of blocks */
+    lateinit var blockPos: BlockPos
+    lateinit var lightPos: BlockPos
+
+    private val probe = LightProbe(BlockModelRenderer.CACHE.get())
+
+    val isValid = BooleanArray(6)
+    val aoData = Array(24) { LightingData() }
+
+    // scratchpad values used during calculation
+    private val centerAo = LightingData()
+    private val sideAo = Array(4) { LightingData() }
+    private val cornerAo = Array(4) { LightingData() }
+    private val isOccluded = BooleanArray(4)
+
+    fun reset(ctx: BlockCtx) {
+        world = ctx.world; blockPos = ctx.pos; lightPos = ctx.pos
+        (0 until 6).forEach { isValid[it] = false }
+    }
+
+    fun fillLightData(lightFace: Direction, isOpaque: Boolean? = null) {
+        if (!isValid[lightFace.ordinal]) calculate(lightFace, isOpaque)
+    }
+
+    /**
+     * Replicate [BlockModelRenderer.AmbientOcclusionFace.updateVertexBrightness]
+     * Does not handle interpolation for non-cubic models, that should be
+     * done in a [VanillaVertexLighter]
+     * @param lightFace face of the block to calculate
+     * @param forceFull force full-block status for lighting calculation, null for auto
+     */
+    private fun calculate(lightFace: Direction, forceFull: Boolean?) {
+        if (isValid[lightFace.ordinal]) return
+        val sideHelper = AoSideHelper.forSide[lightFace.ordinal]
+
+        // Bit 0 of the bitset in vanilla calculations
+        // true if the block model is planar with the block boundary
+        val isFullBlock = forceFull ?: world.getBlockState(blockPos).isCollisionShapeFullBlock(world, blockPos)
+
+        val lightOrigin = if (isFullBlock) lightPos.relative(lightFace) else lightPos
+
+        // AO calculation for the face center
+        probe.position { set(lightOrigin) }.writeTo(centerAo)
+        if (!isFullBlock && !probe.position { move(lightFace) }.state.isSolidRender(world, probe.pos)) {
+            // if the neighboring block in the lightface direction is
+            // transparent (non-opaque), use its packed light instead of our own
+            // (if our block is a full block, we are already using this value)
+            centerAo.packedLight = probe.packedLight
+        }
+
+        // AO calculation for the 4 sides
+        sideHelper.sides.forEachIndexed { sideIdx, sideDir ->
+            // record light data in the block 1 step to the side
+            probe.position { set(lightOrigin).move(sideDir) }.writeTo(sideAo[sideIdx])
+            // side is considered occluded if the block 1 step to that side and
+            // 1 step forward (in the lightface direction) is not fully transparent
+            if (!OCCLUSION_OFFSET_FIX) probe.position { move(lightFace) }
+            isOccluded[sideIdx] = probe.isNonTransparent
+        }
+
+        // AO Calculation for the 4 corners
+        AoSideHelper.faceCornersIdx.forEachIndexed { cornerIdx, sideIndices ->
+            val bothOccluded = isOccluded[sideIndices.first] && isOccluded[sideIndices.second]
+            if (bothOccluded) cornerAo[cornerIdx].apply {
+                // if both sides are occluded, just use the packed light for one of the sides instead
+                val copyFrom = sideAo[sideIndices.first]
+                packedLight = copyFrom.packedLight; colorMultiplier = copyFrom.colorMultiplier
+            }
+            else {
+                // lookup actual packed light from the cornering block in the world
+                probe.position {
+                    set(lightOrigin)
+                        .move(sideHelper.sides[sideIndices.first])
+                        .move(sideHelper.sides[sideIndices.second])
+                }.writeTo(cornerAo[cornerIdx])
+            }
+        }
+
+        // Calculate and store final interpolated value for each corner
+        AoSideHelper.faceCornersIdx.forEachIndexed { cornerIdx, sideIndices ->
+            val aoIdx = sideHelper.aoIndex[cornerIdx]
+            aoData[aoIdx].mixFrom(
+                cornerAo[cornerIdx],
+                sideAo[sideIndices.first],
+                sideAo[sideIndices.second],
+                centerAo
+            )
+        }
+        isValid[lightFace.ordinal] = true
+    }
+
+    inner class LightProbe(
+        val cache: BlockModelRenderer.Cache
+    ) {
+        lateinit var state: BlockState
+        val pos = BlockPos.Mutable()
+
+        val packedLight: Int get() = cache.getLightColor(state, world, pos)
+        val colorMultiplier: Float get() = cache.getShadeBrightness(state, world, pos)
+        val isNonTransparent: Boolean get() = state.getLightBlock(world, pos) > 0
+
+        fun writeTo(data: LightingData) {
+            data.packedLight = packedLight
+            data.colorMultiplier = colorMultiplier
+        }
+
+        inline fun position(func: BlockPos.Mutable.() -> Unit): LightProbe {
+            pos.func()
+            state = world.getBlockState(pos)
+            return this
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/render/lighting/VanillaVertexLighter.kt

@@ -0,0 +1,210 @@
+package mods.betterfoliage.render.lighting
+
+import mods.betterfoliage.integration.ShadersModIntegration
+import mods.betterfoliage.model.HalfBakedQuad
+import mods.betterfoliage.util.Double3
+import mods.betterfoliage.util.EPSILON_ONE
+import mods.betterfoliage.util.EPSILON_ZERO
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.minBy
+import net.minecraft.client.renderer.color.BlockColors
+import net.minecraft.util.Direction
+import net.minecraft.util.Direction.*
+import kotlin.math.abs
+
+class VanillaQuadLighting {
+    val packedLight = IntArray(4)
+    val colorMultiplier = FloatArray(4)
+    val tint = FloatArray(3)
+
+    val calc = VanillaAoCalculator()
+    lateinit var blockColors: BlockColors
+
+    fun updateBlockTint(tintIndex: Int) {
+        if (tintIndex == -1) {
+            tint[0] = 1.0f; tint[1] = 1.0f; tint[2] = 1.0f
+        } else {
+            val state = calc.world.getBlockState(calc.blockPos)
+            blockColors.getColor(state, calc.world, calc.blockPos, tintIndex).let { blockTint ->
+                tint[0] = (blockTint shr 16 and 255).toFloat() / 255.0f
+                tint[1] = (blockTint shr 8 and 255).toFloat() / 255.0f
+                tint[2] = (blockTint and 255).toFloat() / 255.0f
+            }
+        }
+    }
+
+    fun applyDiffuseLighting(face: Direction) {
+        val factor = ShadersModIntegration.diffuseShades[face]
+        tint[0] *= factor; tint[1] *= factor; tint[2] *= factor
+    }
+}
+
+abstract class VanillaVertexLighter {
+    abstract fun updateLightmapAndColor(quad: HalfBakedQuad, lighting: VanillaQuadLighting)
+
+    /**
+     * Update lighting for each vertex with AO values from one of the corners.
+     * Does not calculate missing AO values!
+     * @param quad the quad to shade
+     * @param func selector function from vertex position to directed corner index of desired AO values
+     */
+    inline fun VanillaQuadLighting.updateWithCornerAo(quad: HalfBakedQuad, func: (Double3)->Int?) {
+        quad.raw.verts.forEachIndexed { idx, vertex ->
+            func(vertex.xyz)?.let {
+                packedLight[idx] = calc.aoData[it].packedLight
+                colorMultiplier[idx] = calc.aoData[it].colorMultiplier
+            }
+        }
+    }
+}
+
+/**
+ * Replicates vanilla shading for full blocks. Interpolation for non-full blocks
+ * is not implemented.
+ */
+object VanillaFullBlockLighting : VanillaVertexLighter() {
+    override fun updateLightmapAndColor(quad: HalfBakedQuad, lighting: VanillaQuadLighting) {
+        // TODO bounds checking & interpolation
+        val face = quad.raw.face()
+        lighting.calc.fillLightData(face, true)
+        lighting.updateWithCornerAo(quad) { nearestCornerOnFace(it, face) }
+        lighting.updateBlockTint(quad.baked.tintIndex)
+        if (quad.baked.isShade) lighting.applyDiffuseLighting(face)
+    }
+}
+
+object RoundLeafLightingPreferUp : VanillaVertexLighter() {
+    override fun updateLightmapAndColor(quad: HalfBakedQuad, lighting: VanillaQuadLighting) {
+        val angles = getAngles45(quad)?.let { normalFaces ->
+            lighting.calc.fillLightData(normalFaces.first)
+            lighting.calc.fillLightData(normalFaces.second)
+            if (normalFaces.first != UP && normalFaces.second != UP) lighting.calc.fillLightData(UP)
+            lighting.updateWithCornerAo(quad) { vertex ->
+                val isUp = vertex.y > 0.5f
+                val cornerUndir = AoSideHelper.getCornerUndir(vertex.x, vertex.y, vertex.z)
+                val preferredFace = if (isUp) UP else normalFaces.minBy { faceDistance(it, vertex) }
+                AoSideHelper.boxCornersDirFromUndir[preferredFace.ordinal][cornerUndir]
+            }
+            lighting.updateBlockTint(quad.baked.tintIndex)
+        }
+    }
+}
+
+/**
+ * Lights vertices with the AO values from the nearest corner on either of
+ * the 2 faces the quad normal points towards.
+ */
+object RoundLeafLighting : VanillaVertexLighter() {
+    override fun updateLightmapAndColor(quad: HalfBakedQuad, lighting: VanillaQuadLighting) {
+        val angles = getAngles45(quad)?.let { normalFaces ->
+            lighting.calc.fillLightData(normalFaces.first)
+            lighting.calc.fillLightData(normalFaces.second)
+            lighting.updateWithCornerAo(quad) { vertex ->
+                val cornerUndir = AoSideHelper.getCornerUndir(vertex.x, vertex.y, vertex.z)
+                val preferredFace = normalFaces.minBy { faceDistance(it, vertex) }
+                AoSideHelper.boxCornersDirFromUndir[preferredFace.ordinal][cornerUndir]
+            }
+            lighting.updateBlockTint(quad.baked.tintIndex)
+        }
+    }
+}
+
+/**
+ * Lights vertices with the AO values from the nearest corner on the preferred face.
+ */
+class LightingPreferredFace(val face: Direction) : VanillaVertexLighter() {
+    override fun updateLightmapAndColor(quad: HalfBakedQuad, lighting: VanillaQuadLighting) {
+        lighting.calc.fillLightData(face)
+        lighting.updateWithCornerAo(quad) { nearestCornerOnFace(it, face) }
+        lighting.updateBlockTint(quad.baked.tintIndex)
+    }
+}
+
+object ColumnLighting : VanillaVertexLighter() {
+    override fun updateLightmapAndColor(quad: HalfBakedQuad, lighting: VanillaQuadLighting) {
+        // faces pointing in cardinal directions
+        getNormalFace(quad)?.let { face ->
+            lighting.calc.fillLightData(face)
+            lighting.updateWithCornerAo(quad) { nearestCornerOnFace(it, face) }
+            lighting.updateBlockTint(quad.baked.tintIndex)
+            return
+        }
+        // faces pointing at 45deg angles
+        getAngles45(quad)?.let { (face1, face2) ->
+            lighting.calc.fillLightData(face1)
+            lighting.calc.fillLightData(face2)
+            quad.raw.verts.forEachIndexed { idx, vertex ->
+                val cornerUndir = AoSideHelper.getCornerUndir(vertex.xyz.x, vertex.xyz.y, vertex.xyz.z)
+                val cornerDir1 = AoSideHelper.boxCornersDirFromUndir[face1.ordinal][cornerUndir]
+                val cornerDir2 = AoSideHelper.boxCornersDirFromUndir[face2.ordinal][cornerUndir]
+                if (cornerDir1 == null || cornerDir2 == null) return@let
+                val ao1 = lighting.calc.aoData[cornerDir1]
+                val ao2 = lighting.calc.aoData[cornerDir2]
+                lighting.packedLight[idx] = ((ao1.packedLight + ao2.packedLight) shr 1) and 0xFF00FF
+                lighting.colorMultiplier[idx] = (ao1.colorMultiplier + ao2.colorMultiplier) * 0.5f
+            }
+            lighting.updateBlockTint(quad.baked.tintIndex)
+            return
+        }
+        // something is wrong...
+        lighting.updateWithCornerAo(quad) { nearestCornerOnFace(it, quad.raw.face()) }
+        lighting.updateBlockTint(quad.baked.tintIndex)
+    }
+}
+
+/**
+ * Return the directed box corner index for the corner nearest the given vertex,
+ * which is on the given face. May return null if the vertex is closest to
+ * one of the opposite 4 corners
+ */
+fun nearestCornerOnFace(pos: Double3, face: Direction): Int? {
+    val cornerUndir = AoSideHelper.getCornerUndir(pos.x, pos.y, pos.z)
+    return AoSideHelper.boxCornersDirFromUndir[face.ordinal][cornerUndir]
+}
+
+/**
+ * If the quad normal approximately bisects 2 axes at a 45 degree angle,
+ * and is approximately perpendicular to the third, returns the 2 directions
+ * the quad normal points towards.
+ * Returns null otherwise.
+ */
+fun getAngles45(quad: HalfBakedQuad): Pair<Direction, Direction>? {
+    val normal = quad.raw.normal
+    // one of the components must be close to zero
+    val zeroAxis = when {
+        abs(normal.x) < EPSILON_ZERO -> Axis.X
+        abs(normal.y) < EPSILON_ZERO -> Axis.Y
+        abs(normal.z) < EPSILON_ZERO -> Axis.Z
+        else -> return null
+    }
+    // the other two must be of similar magnitude
+    val diff = when(zeroAxis) {
+        Axis.X -> abs(abs(normal.y) - abs(normal.z))
+        Axis.Y -> abs(abs(normal.x) - abs(normal.z))
+        Axis.Z -> abs(abs(normal.x) - abs(normal.y))
+    }
+    if (diff > EPSILON_ZERO) return null
+    return when(zeroAxis) {
+        Axis.X -> Pair(if (normal.y > 0.0f) UP else DOWN, if (normal.z > 0.0f) SOUTH else NORTH)
+        Axis.Y -> Pair(if (normal.x > 0.0f) EAST else WEST, if (normal.z > 0.0f) SOUTH else NORTH)
+        Axis.Z -> Pair(if (normal.x > 0.0f) EAST else WEST, if (normal.y > 0.0f) UP else DOWN)
+    }
+}
+
+fun getNormalFace(quad: HalfBakedQuad) = quad.raw.normal.let { normal ->
+    when {
+        normal.x > EPSILON_ONE -> EAST
+        normal.x < -EPSILON_ONE -> WEST
+        normal.y > EPSILON_ONE -> UP
+        normal.y < -EPSILON_ONE -> DOWN
+        normal.z > EPSILON_ONE -> SOUTH
+        normal.z < -EPSILON_ONE -> NORTH
+        else -> null
+    }
+}
+
+fun faceDistance(face: Direction, pos: Double3) = when(face) {
+    WEST -> pos.x; EAST -> 1.0 - pos.x
+    DOWN -> pos.y; UP -> 1.0 - pos.y
+    NORTH -> pos.z; SOUTH -> 1.0 - pos.z
+}

src/main/kotlin/mods/betterfoliage/render/particle/AbstractParticle.kt

@@ -0,0 +1,109 @@
+package mods.betterfoliage.render.particle
+
+import com.mojang.blaze3d.vertex.IVertexBuilder
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.HSB
+import mods.betterfoliage.util.Double3
+import net.minecraft.client.Minecraft
+import net.minecraft.client.particle.SpriteTexturedParticle
+import net.minecraft.client.renderer.ActiveRenderInfo
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.client.world.ClientWorld
+import net.minecraft.util.math.MathHelper
+import net.minecraft.util.math.vector.Vector3f
+
+abstract class AbstractParticle(world: ClientWorld, x: Double, y: Double, z: Double) : SpriteTexturedParticle(world, x, y, z) {
+
+    companion object {
+//        @JvmStatic val sin = Array(64) { idx -> Math.sin(PI2 / 64.0 * idx) }
+//        @JvmStatic val cos = Array(64) { idx -> Math.cos(PI2 / 64.0 * idx) }
+    }
+
+    val billboardRot = Pair(Double3.zero, Double3.zero)
+    val currentPos = Double3.zero
+    val prevPos = Double3.zero
+    val velocity = Double3.zero
+
+    override fun tick() {
+        super.tick()
+        currentPos.setTo(x, y, z)
+        prevPos.setTo(xo, yo, zo)
+        velocity.setTo(xd, yd, zd)
+        update()
+        x = currentPos.x; y = currentPos.y; z = currentPos.z;
+        xd = velocity.x; yd = velocity.y; zd = velocity.z;
+    }
+
+    /** Update particle on world tick. */
+    abstract fun update()
+
+    /** True if the particle is renderable. */
+    abstract val isValid: Boolean
+
+    /** Add the particle to the effect renderer if it is valid. */
+    fun addIfValid() { if (isValid) Minecraft.getInstance().particleEngine.add(this) }
+
+    override fun render(vertexBuilder: IVertexBuilder, camera: ActiveRenderInfo, tickDelta: Float) {
+        super.render(vertexBuilder, camera, tickDelta)
+    }
+
+    /**
+     * Render a particle quad.
+     *
+     * @param[tessellator] the [Tessellator] instance to use
+     * @param[tickDelta] partial tick time
+     * @param[currentPos] render position
+     * @param[prevPos] previous tick position for interpolation
+     * @param[size] particle size
+     * @param[currentAngle] viewpoint-dependent particle rotation (64 steps)
+     * @param[sprite] particle texture
+     * @param[isMirrored] mirror particle texture along V-axis
+     * @param[alpha] aplha blending
+     */
+    fun renderParticleQuad(vertexConsumer: IVertexBuilder,
+                           camera: ActiveRenderInfo,
+                           tickDelta: Float,
+                           currentPos: Double3 = this.currentPos,
+                           prevPos: Double3 = this.prevPos,
+                           size: Double = quadSize.toDouble(),
+                           currentAngle: Float = this.roll,
+                           prevAngle: Float = this.oRoll,
+                           sprite: TextureAtlasSprite = this.sprite,
+                           alpha: Float = this.alpha) {
+
+        val center = Double3.lerp(tickDelta.toDouble(), prevPos, currentPos)
+        val angle = MathHelper.lerp(tickDelta, prevAngle, currentAngle)
+        val rotation = camera.rotation().copy().apply { mul(Vector3f.ZP.rotation(angle)) }
+        val lightmapCoord = getLightColor(tickDelta)
+
+        val coords = arrayOf(
+            Double3(-1.0, -1.0, 0.0),
+            Double3(-1.0, 1.0, 0.0),
+            Double3(1.0, 1.0, 0.0),
+            Double3(1.0, -1.0, 0.0)
+        ).map { it.rotate(rotation).mul(size).add(center).sub(camera.position.x, camera.position.y, camera.position.z) }
+
+        fun renderVertex(vertex: Double3, u: Float, v: Float) = vertexConsumer
+            .vertex(vertex.x, vertex.y, vertex.z).uv(u, v)
+            .color(rCol, gCol, bCol, alpha).uv2(lightmapCoord)
+            .endVertex()
+
+        renderVertex(coords[0], sprite.u1, sprite.v1)
+        renderVertex(coords[1], sprite.u1, sprite.v0)
+        renderVertex(coords[2], sprite.u0, sprite.v0)
+        renderVertex(coords[3], sprite.u0, sprite.v1)
+    }
+
+    fun setColor(color: Color) {
+        rCol = color.red / 256.0f
+        gCol = color.green / 256.0f
+        bCol = color.blue / 256.0f
+    }
+
+    /**
+     * Set particle color to the "stronger" of the given colors, determined by higher color saturation
+     */
+    fun setColor(color1: Color, color2: Color) =
+        setColor(if (color1.asHSB.saturation > color2.asHSB.saturation) color1 else color2)
+}
+

src/main/kotlin/mods/betterfoliage/render/particle/FallingLeaves.kt

@@ -1,24 +1,30 @@
 package mods.betterfoliage.render.particle
 
-import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.ClientWorldLoadCallback
-import mods.betterfoliage.render.AbstractParticle
-import mods.betterfoliage.render.block.vanilla.LeafKey
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.event.world.WorldTickCallback
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.render.BufferBuilder
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.util.Double3
+import mods.betterfoliage.util.PI2
+import mods.betterfoliage.util.minmax
+import mods.betterfoliage.util.randomB
+import mods.betterfoliage.util.randomD
+import mods.betterfoliage.util.randomF
+import mods.betterfoliage.util.randomI
+import net.minecraft.client.particle.IParticleRenderType
 import net.minecraft.client.world.ClientWorld
 import net.minecraft.util.math.BlockPos
 import net.minecraft.util.math.MathHelper
 import net.minecraft.world.World
-import java.util.*
+import net.minecraftforge.common.MinecraftForge
+import net.minecraftforge.event.TickEvent
+import net.minecraftforge.eventbus.api.SubscribeEvent
+import net.minecraftforge.fml.LogicalSide
+import java.util.Random
 import kotlin.math.abs
 import kotlin.math.cos
 import kotlin.math.sin
 
 class FallingLeafParticle(
-    world: World, pos: BlockPos, leafKey: LeafKey
+    world: ClientWorld, pos: BlockPos, leaf: LeafParticleKey, blockColor: Int, random: Random
 ) : AbstractParticle(
     world, pos.x.toDouble() + 0.5, pos.y.toDouble(), pos.z.toDouble() + 0.5
 ) {
@@ -27,73 +33,70 @@ class FallingLeafParticle(
         @JvmStatic val biomeBrightnessMultiplier = 0.5f
     }
 
-    var rotationSpeed = randomF(min = PI2 / 80.0, max = PI2 / 50.0)
-    var rotPositive = true
+    var rotationSpeed = random.randomF(min = PI2 / 80.0, max = PI2 / 50.0)
     val isMirrored = randomB()
     var wasCollided = false
 
     init {
-        angle = randomF(max = PI2)
-        maxAge = MathHelper.floor(randomD(0.6, 1.0) * BetterFoliage.config.fallingLeaves.lifetime * 20.0)
-        velocityY = -BetterFoliage.config.fallingLeaves.speed
+        roll = random.randomF(max = PI2)
+        oRoll = roll - rotationSpeed
 
-        scale = BetterFoliage.config.fallingLeaves.size.toFloat() * 0.1f
+        lifetime = MathHelper.floor(randomD(0.6, 1.0) * Config.fallingLeaves.lifetime * 20.0)
+        yd = -Config.fallingLeaves.speed
 
-        val state = world.getBlockState(pos)
-        val blockColor = MinecraftClient.getInstance().blockColorMap.getColorMultiplier(state, world, pos, 0)
-        sprite = LeafParticleRegistry[leafKey.leafType][randomI(max = 1024)]
-        setParticleColor(leafKey.overrideColor, blockColor)
+        quadSize = Config.fallingLeaves.size.toFloat() * 0.1f
+        if (leaf.tintIndex == -1) setColor(leaf.avgColor) else setColor(leaf.avgColor, Color(blockColor))
+        sprite = LeafParticleRegistry[leaf.leafType][randomI(max = 1024)]
     }
 
     override val isValid: Boolean get() = (sprite != null)
 
+
     override fun update() {
-        if (randomF() > 0.95f) rotPositive = !rotPositive
-//        if (age > maxAge - 20) colorAlpha = 0.05f * (maxAge - age)
+        if (random.nextFloat() > 0.95f) rotationSpeed *= -1.0f
+        if (age > lifetime - 20) alpha = 0.05f * (lifetime - age)
 
         if (onGround || wasCollided) {
             velocity.setTo(0.0, 0.0, 0.0)
             if (!wasCollided) {
-                age = age.coerceAtLeast(maxAge - 20)
+                age = age.coerceAtLeast(lifetime - 20)
                 wasCollided = true
             }
         } else {
-            val cosRotation = cos(angle).toDouble(); val sinRotation = sin(angle).toDouble()
-            velocity.setTo(cosRotation, 0.0, sinRotation).mul(BetterFoliage.config.fallingLeaves.perturb)
-                    .add(LeafWindTracker.current).add(0.0, -1.0, 0.0).mul(BetterFoliage.config.fallingLeaves.speed)
-            angle += if (rotPositive) rotationSpeed else -rotationSpeed
+            val cosRotation = cos(roll).toDouble(); val sinRotation = sin(roll).toDouble()
+            velocity.setTo(cosRotation, 0.0, sinRotation).mul(Config.fallingLeaves.perturb)
+                .add(LeafWindTracker.current).add(0.0, -1.0, 0.0).mul(Config.fallingLeaves.speed)
+            oRoll = roll
+            roll += rotationSpeed
         }
     }
 
-    override fun render(worldRenderer: BufferBuilder, partialTickTime: Float) {
-        val tickAngle = angle + partialTickTime * (if (rotPositive) rotationSpeed else -rotationSpeed)
-        renderParticleQuad(worldRenderer, partialTickTime, rotation = tickAngle.toDouble(), isMirrored = isMirrored)
-    }
-
-    fun setParticleColor(overrideColor: Int?, blockColor: Int) {
-        val color =  overrideColor ?: blockColor
-        setColor(color)
-    }
+    override fun getRenderType(): IParticleRenderType = IParticleRenderType.PARTICLE_SHEET_TRANSLUCENT
 }
 
-object LeafWindTracker : WorldTickCallback, ClientWorldLoadCallback {
-    val random = Random()
+object LeafWindTracker {
+    var random = Random()
     val target = Double3.zero
     val current = Double3.zero
     var nextChange: Long = 0
 
-    fun changeWindTarget(world: World) {
-        nextChange = world.time + 120 + random.nextInt(80)
+    init {
+        MinecraftForge.EVENT_BUS.register(this)
+    }
+
+    fun changeWind(world: World) {
+        nextChange = world.gameTime + 120 + random.nextInt(80)
         val direction = PI2 * random.nextDouble()
-        val speed = abs(random.nextGaussian()) * BetterFoliage.config.fallingLeaves.windStrength +
-            (if (!world.isRaining) 0.0 else abs(random.nextGaussian()) * BetterFoliage.config.fallingLeaves.stormStrength)
+        val speed = abs(random.nextGaussian()) * Config.fallingLeaves.windStrength +
+                (if (!world.isRaining) 0.0 else abs(random.nextGaussian()) * Config.fallingLeaves.stormStrength)
         target.setTo(cos(direction) * speed, 0.0, sin(direction) * speed)
     }
 
-    override fun tick(world: World) {
-        if (world.isClient) {
+    @SubscribeEvent
+    fun handleWorldTick(event: TickEvent.WorldTickEvent) {
+        if (event.phase == TickEvent.Phase.START && event.side == LogicalSide.CLIENT) event.world.let { world ->
             // change target wind speed
-            if (world.time >= nextChange) changeWindTarget(world)
+            if (world.dayTime >= nextChange) changeWind(world)
 
             // change current wind speed
             val changeRate = if (world.isRaining) 0.015 else 0.005
@@ -105,8 +108,6 @@ object LeafWindTracker : WorldTickCallback, ClientWorldLoadCallback {
         }
     }
 
-    override fun loadWorld(world: ClientWorld) {
-        changeWindTarget(world)
-    }
-}
-
+//    @SubscribeEvent
+//    fun handleWorldLoad(event: WorldEvent.Load) { if (event.world.isClientSide) changeWind(event.world) }
+}

src/main/kotlin/mods/betterfoliage/render/particle/LeafParticleRegistry.kt

@@ -1,68 +1,107 @@
 package mods.betterfoliage.render.particle
 
-import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.resource.model.FixedSpriteSet
-import mods.betterfoliage.resource.model.SpriteSet
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.event.client.ClientSpriteRegistryCallback
-import net.minecraft.client.texture.SpriteAtlasTexture
-import net.minecraft.util.Identifier
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.model.Color
+import mods.betterfoliage.model.FixedSpriteSet
+import mods.betterfoliage.model.SpriteSet
+import mods.betterfoliage.resource.VeryEarlyReloadListener
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.HasLogger
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.getLines
+import mods.betterfoliage.util.resourceManager
+import mods.betterfoliage.util.stripEnd
+import mods.betterfoliage.util.stripStart
+import net.minecraft.client.renderer.texture.MissingTextureSprite
+import net.minecraft.resources.IResourceManager
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.client.event.TextureStitchEvent
+import net.minecraftforge.eventbus.api.SubscribeEvent
+import org.apache.logging.log4j.Level.INFO
 
-object LeafParticleRegistry : ClientSpriteRegistryCallback {
-    val typeMappings = TextureMatcher()
+interface LeafBlockModel {
+    val key: LeafParticleKey
+}
 
-    val ids = mutableMapOf<String, List<Identifier>>()
-    val spriteSets = mutableMapOf<String, SpriteSet>()
+interface LeafParticleKey {
+    val leafType: String
+    val tintIndex: Int
+    val avgColor: Color
+}
 
-    override fun registerSprites(atlasTexture: SpriteAtlasTexture, registry: ClientSpriteRegistryCallback.Registry) {
-        ids.clear()
-        spriteSets.clear()
-        typeMappings.loadMappings(Identifier(BetterFoliage.MOD_ID, "leaf_texture_mappings.cfg"))
-        (typeMappings.mappings.map { it.type } + "default").distinct().forEach { leafType ->
-            val validIds = (0 until 16).map { idx -> Identifier(BetterFoliage.MOD_ID, "falling_leaf_${leafType}_$idx") }
-                .filter { resourceManager.containsResource(Atlas.PARTICLES.wrap(it)) }
-            ids[leafType] = validIds
-            validIds.forEach { registry.register(it) }
+object LeafParticleRegistry : HasLogger(), VeryEarlyReloadListener {
+    val allTypes = mutableSetOf<String>()
+    val particles = hashMapOf<String, SpriteSet>()
+
+    operator fun get(type: String) = particles[type] ?: particles["default"]!!
+
+    override fun onReloadStarted(resourceManager: IResourceManager) {
+        allTypes.clear()
+        resourceManager.listResources("textures/particle") { it.startsWith("falling_leaf_") }
+            .filter { it.namespace == BetterFoliageMod.MOD_ID }
+            .map { it.stripStart("textures/particle/falling_leaf_").stripEnd(".png") }
+            .map { it.path.substringBefore("_", "") }
+            .forEach { leafType -> if (!leafType.isEmpty()) allTypes.add(leafType) }
+    }
+
+    @SubscribeEvent
+    fun handlePreStitch(event: TextureStitchEvent.Pre) {
+        if (event.map.location() == Atlas.PARTICLES.resourceId) {
+            allTypes.forEach { leafType ->
+                val locations = (0 until 16).map { idx ->
+                    ResourceLocation(BetterFoliageMod.MOD_ID, "particle/falling_leaf_${leafType}_$idx")
+                }.filter { resourceManager.hasResource(Atlas.PARTICLES.file(it)) }
+
+                detailLogger.log(INFO, "Registering sprites for leaf particle type [$leafType], ${locations.size} sprites found")
+                locations.forEach { event.addSprite(it) }
+            }
         }
     }
 
-    operator fun get(type: String): SpriteSet {
-        spriteSets[type]?.let { return it }
-        ids[type]?.let {
-            return FixedSpriteSet(Atlas.PARTICLES, it).apply { spriteSets[type] = this }
+    @SubscribeEvent
+    fun handlePostStitch(event: TextureStitchEvent.Post) {
+        if (event.map.location() == Atlas.PARTICLES.resourceId) {
+            allTypes.forEach { leafType ->
+                val sprites = (0 until 16).map { idx ->
+                    ResourceLocation(BetterFoliageMod.MOD_ID, "particle/falling_leaf_${leafType}_$idx")
+                }
+                    .map { event.map.getSprite(it) }
+                    .filter { it !is MissingTextureSprite }
+                detailLogger.log(INFO, "Leaf particle type [$leafType], ${sprites.size} sprites in atlas")
+                particles[leafType] = FixedSpriteSet(sprites)
+            }
         }
-        return if (type == "default") FixedSpriteSet(Atlas.PARTICLES, emptyList()).apply { spriteSets[type] = this }
-            else get("default")
-    }
-
-    init {
-        ClientSpriteRegistryCallback.event(SpriteAtlasTexture.PARTICLE_ATLAS_TEX).register(this)
     }
 }
 
 class TextureMatcher {
 
     data class Mapping(val domain: String?, val path: String, val type: String) {
-        fun matches(iconLocation: Identifier): Boolean {
+        fun matches(iconLocation: ResourceLocation): Boolean {
             return (domain == null || domain == iconLocation.namespace) &&
-                iconLocation.path.stripStart("blocks/").contains(path, ignoreCase = true)
+                    iconLocation.path.stripStart("blocks/").contains(path, ignoreCase = true)
         }
     }
 
     val mappings: MutableList<Mapping> = mutableListOf()
 
-    fun getType(resource: Identifier) = mappings.filter { it.matches(resource) }.map { it.type }.firstOrNull()
-    fun getType(iconName: String) = Identifier(iconName).let { getType(it) }
+    fun getType(resource: ResourceLocation) = mappings.filter { it.matches(resource) }.map { it.type }.firstOrNull()
 
-    fun loadMappings(mappingLocation: Identifier) {
+    fun loadMappings(mappingLocation: ResourceLocation) {
         mappings.clear()
         resourceManager[mappingLocation]?.getLines()?.let { lines ->
-            lines.filter { !it.startsWith("//") }.filter { it.isNotEmpty() }.forEach { line ->
+            lines.filter { !it.startsWith("//") }.filter { !it.isEmpty() }.forEach { line ->
                 val line2 = line.trim().split('=')
                 if (line2.size == 2) {
                     val mapping = line2[0].trim().split(':')
                     if (mapping.size == 1) mappings.add(Mapping(null, mapping[0].trim(), line2[1].trim()))
-                    else if (mapping.size == 2) mappings.add(Mapping(mapping[0].trim(), mapping[1].trim(), line2[1].trim()))
+                    else if (mapping.size == 2) mappings.add(
+                        Mapping(
+                            mapping[0].trim(),
+                            mapping[1].trim(),
+                            line2[1].trim()
+                        )
+                    )
                 }
             }
         }

src/main/kotlin/mods/betterfoliage/render/particle/RisingSouls.kt

@@ -1,22 +1,30 @@
 package mods.betterfoliage.render.particle
 
-import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.render.AbstractParticle
-import mods.betterfoliage.resource.model.SpriteDelegate
-import mods.betterfoliage.resource.model.SpriteSetDelegate
-import mods.betterfoliage.util.*
-import net.minecraft.client.particle.ParticleTextureSheet
-import net.minecraft.client.render.BufferBuilder
-import net.minecraft.util.Identifier
+import com.mojang.blaze3d.vertex.IVertexBuilder
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.config.Config
+import mods.betterfoliage.model.SpriteDelegate
+import mods.betterfoliage.model.SpriteSetDelegate
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.Double3
+import mods.betterfoliage.util.PI2
+import mods.betterfoliage.util.forEachPairIndexed
+import mods.betterfoliage.util.randomD
+import mods.betterfoliage.util.randomI
+import net.minecraft.client.particle.IParticleRenderType
+import net.minecraft.client.renderer.ActiveRenderInfo
+import net.minecraft.client.world.ClientWorld
+import net.minecraft.util.ResourceLocation
 import net.minecraft.util.math.BlockPos
 import net.minecraft.util.math.MathHelper
 import net.minecraft.world.World
-import java.util.*
+import java.util.Deque
+import java.util.LinkedList
 import kotlin.math.cos
 import kotlin.math.sin
 
 class RisingSoulParticle(
-    world: World, pos: BlockPos
+    world: ClientWorld, pos: BlockPos
 ) : AbstractParticle(
     world, pos.x.toDouble() + 0.5, pos.y.toDouble() + 1.0, pos.z.toDouble() + 0.5
 ) {
@@ -25,52 +33,58 @@ class RisingSoulParticle(
     val initialPhase = randomD(max = PI2)
 
     init {
-        velocityY = 0.1
-        gravityStrength = 0.0f
+        yd = 0.1
+        gravity = 0.0f
         sprite = headIcons[randomI(max = 1024)]
-        maxAge = MathHelper.floor((0.6 + 0.4 * randomD()) * BetterFoliage.config.risingSoul.lifetime * 20.0)
+        lifetime = MathHelper.floor((0.6 + 0.4 * randomD()) * Config.risingSoul.lifetime * 20.0)
     }
 
     override val isValid: Boolean get() = true
 
     override fun update() {
-        val phase = initialPhase + (age.toDouble() * PI2 / 64.0 )
-        val cosPhase = cos(phase); val sinPhase = sin(phase)
-        velocity.setTo(BetterFoliage.config.risingSoul.perturb.let { Double3(cosPhase * it, 0.1, sinPhase * it) })
+        val phase = initialPhase + (age.toDouble() * PI2 / 64.0)
+        val cosPhase = cos(phase);
+        val sinPhase = sin(phase)
+        velocity.setTo(Config.risingSoul.perturb.let { Double3(cosPhase * it, 0.1, sinPhase * it) })
 
         particleTrail.addFirst(currentPos.copy())
-        while (particleTrail.size > BetterFoliage.config.risingSoul.trailLength) particleTrail.removeLast()
+        while (particleTrail.size > Config.risingSoul.trailLength) particleTrail.removeLast()
 
-        if (!BetterFoliage.config.enabled) markDead()
+        if (!Config.enabled) remove()
     }
 
-    override fun render(worldRenderer: BufferBuilder, partialTickTime: Float) {
-        var alpha = BetterFoliage.config.risingSoul.opacity.toFloat()
-        if (age > maxAge - 40) alpha *= (maxAge - age) / 40.0f
+    override fun render(vertexBuilder: IVertexBuilder, camera: ActiveRenderInfo, tickDelta: Float) {
+        var alpha = Config.risingSoul.opacity.toFloat()
+        if (age > lifetime - 40) alpha *= (lifetime - age) / 40.0f
 
-        renderParticleQuad(worldRenderer, partialTickTime,
-            size = BetterFoliage.config.risingSoul.headSize * 0.25,
+        renderParticleQuad(
+            vertexBuilder, camera, tickDelta,
+            size = Config.risingSoul.headSize * 0.25,
             alpha = alpha
         )
 
-        var scale = BetterFoliage.config.risingSoul.trailSize * 0.25
+        var scale = Config.risingSoul.trailSize * 0.25
         particleTrail.forEachPairIndexed { idx, current, previous ->
-            scale *= BetterFoliage.config.risingSoul.sizeDecay
-            alpha *= BetterFoliage.config.risingSoul.opacityDecay.toFloat()
-            if (idx % BetterFoliage.config.risingSoul.trailDensity == 0) renderParticleQuad(worldRenderer, partialTickTime,
-                currentPos = current,
-                prevPos = previous,
-                size = scale,
-                alpha = alpha,
-                sprite = trackIcon
-            )
+            scale *= Config.risingSoul.sizeDecay
+            alpha *= Config.risingSoul.opacityDecay.toFloat()
+            if (idx % Config.risingSoul.trailDensity == 0)
+                renderParticleQuad(
+                    vertexBuilder, camera, tickDelta,
+                    currentPos = current,
+                    prevPos = previous,
+                    size = scale,
+                    alpha = alpha,
+                    sprite = trackIcon
+                )
         }
     }
 
-    override fun getType() = ParticleTextureSheet.PARTICLE_SHEET_TRANSLUCENT
+    override fun getRenderType(): IParticleRenderType = IParticleRenderType.PARTICLE_SHEET_TRANSLUCENT
 
     companion object {
-        val headIcons by SpriteSetDelegate(Atlas.PARTICLES) { idx -> Identifier(BetterFoliage.MOD_ID, "rising_soul_$idx") }
-        val trackIcon by SpriteDelegate(Atlas.PARTICLES) { Identifier(BetterFoliage.MOD_ID, "soul_track") }
+        val headIcons by SpriteSetDelegate(Atlas.PARTICLES) { idx ->
+            ResourceLocation(BetterFoliageMod.MOD_ID, "particle/rising_soul_$idx")
+        }
+        val trackIcon by SpriteDelegate(Atlas.PARTICLES) { ResourceLocation(BetterFoliageMod.MOD_ID, "particle/soul_track") }
     }
 }

src/main/kotlin/mods/betterfoliage/render/pipeline/Layers.kt

@@ -0,0 +1,42 @@
+package mods.betterfoliage.render.pipeline
+
+import mods.betterfoliage.model.SpecialRenderData
+import mods.betterfoliage.RenderTypeLookup
+import net.minecraft.block.Block
+import net.minecraft.client.renderer.RenderType
+import java.util.function.Predicate
+
+object Layers {
+    val tufts = RenderType.cutout()
+    val connectedGrass = RenderType.solid()
+    val connectedDirt = RenderType.cutoutMipped()
+    val coral = RenderType.cutoutMipped()
+}
+
+val defaultLayerBehaviour = Predicate<RenderType> { layer -> layer == RenderType.solid() }
+
+class WrappedLayerPredicate(val original: Predicate<RenderType>, val func: (RenderType, Predicate<RenderType>) -> Boolean) : Predicate<RenderType> {
+    override fun test(layer: RenderType) = func(layer, original)
+}
+
+/**
+ * Extension method to access the canRenderInLayer() predicate in [RenderTypeLookup]
+ */
+var Block.layerPredicate : Predicate<RenderType>?
+    get() = RenderTypeLookup.blockRenderChecks.getStatic()[delegate]
+    set(value) {
+        RenderTypeLookup.blockRenderChecks.getStatic()[delegate] = value!!
+    }
+
+/**
+ * Add a wrapper to the block's canRenderInLayer() predicate to enable dynamic multi-layer rendering.
+ * If the render data for the block implements [SpecialRenderData], the layers it enables will be
+ * rendered _in addition to_ the block's normal layers.
+ */
+fun Block.extendLayers() {
+    val original = layerPredicate ?: defaultLayerBehaviour
+    if (original !is WrappedLayerPredicate) layerPredicate = WrappedLayerPredicate(original) { layer, original ->
+        original.test(layer) ||
+        (RenderCtxBase.specialRenderData.get() as? SpecialRenderData)?.canRenderInLayer(layer) ?: false
+    }
+}

src/main/kotlin/mods/betterfoliage/render/pipeline/RenderCtxBase.kt

@@ -0,0 +1,83 @@
+package mods.betterfoliage.render.pipeline
+
+import com.mojang.blaze3d.matrix.MatrixStack
+import mods.betterfoliage.chunk.BasicBlockCtx
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.model.HalfBakedQuad
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.render.lighting.VanillaFullBlockLighting
+import mods.betterfoliage.render.lighting.VanillaQuadLighting
+import mods.betterfoliage.render.lighting.VanillaVertexLighter
+import mods.betterfoliage.util.Int3
+import mods.betterfoliage.util.plus
+import net.minecraft.block.Block
+import net.minecraft.client.Minecraft
+import net.minecraft.client.renderer.BlockRendererDispatcher
+import net.minecraft.client.renderer.chunk.ChunkRenderCache
+import net.minecraft.util.Direction
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraftforge.client.model.data.IModelData
+import java.util.Random
+
+/**
+ * Rendering context for drawing [SpecialRenderModel] models.
+ *
+ * This class (and others in its constellation) basically form a replacement, highly customizable,
+ * push-based partial rendering pipeline for [SpecialRenderModel] instances.
+ */
+abstract class RenderCtxBase(
+    blockCtx: BlockCtx,
+    val matrixStack: MatrixStack,
+    var checkSides: Boolean,
+    val random: Random,
+    val modelData: IModelData,
+) : BlockCtx by blockCtx {
+
+    var hasRendered = false
+    var modelRenderData: Any? = null
+    inline fun <reified T> withRenderData(renderFunc: (T)->Boolean) = (modelRenderData as? T?).let {
+        if (it == null) false else renderFunc(it)
+    }
+
+    val blockModelShapes = Minecraft.getInstance().blockRenderer.blockModelShaper
+    var vertexLighter: VanillaVertexLighter = VanillaFullBlockLighting
+    protected val lightingData = RenderCtxBase.lightingData.get().apply {
+        calc.reset(this@RenderCtxBase)
+        blockColors = Minecraft.getInstance().blockColors
+    }
+
+    abstract fun renderQuad(quad: HalfBakedQuad)
+
+    inline fun Direction?.shouldRender() = this == null || !checkSides || Block.shouldRenderFace(state, world, pos, this)
+
+    fun renderQuads(quads: Iterable<HalfBakedQuad>) {
+        quads.forEach { quad ->
+            if (quad.raw.face.shouldRender()) {
+                renderQuad(quad)
+                hasRendered = true
+            }
+        }
+    }
+
+    fun renderMasquerade(offset: Int3, func: () -> Unit) {
+        lightingData.calc.blockPos += offset
+        func()
+        lightingData.calc.blockPos = pos
+    }
+
+    companion object {
+        @JvmStatic
+        fun reset(chunkRenderCache: IBlockDisplayReader, blockRendererDispatcher: BlockRendererDispatcher, pos: BlockPos, random: Random) {
+            // prepare render data
+            val blockCtx = BasicBlockCtx(chunkRenderCache, pos)
+            val model = blockRendererDispatcher.getBlockModel(blockCtx.state)
+            random.setSeed(blockCtx.seed)
+            val data = if (model is SpecialRenderModel) model.prepare(blockCtx, random) else Unit
+            specialRenderData.set(data)
+        }
+
+        val lightingData = ThreadLocal.withInitial { VanillaQuadLighting() }
+        val specialRenderData = ThreadLocal<Any?>()
+    }
+}

src/main/kotlin/mods/betterfoliage/render/pipeline/RenderCtxForge.kt

@@ -0,0 +1,90 @@
+package mods.betterfoliage.render.pipeline
+
+import com.mojang.blaze3d.matrix.MatrixStack
+import mods.betterfoliage.chunk.BasicBlockCtx
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.model.HalfBakedQuad
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.render.lighting.ForgeVertexLighter
+import mods.betterfoliage.render.lighting.ForgeVertexLighterAccess
+import mods.betterfoliage.util.getWithDefault
+import net.minecraft.block.BlockState
+import net.minecraft.client.renderer.LightTexture
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraftforge.client.ForgeHooksClient
+import net.minecraftforge.client.MinecraftForgeClient
+import net.minecraftforge.client.model.data.IModelData
+import net.minecraftforge.client.model.pipeline.VertexLighterFlat
+import java.util.Random
+
+class RenderCtxForge(
+    blockCtx: BlockCtx,
+    val lighter: VertexLighterFlat,
+    matrixStack: MatrixStack,
+    checkSides: Boolean,
+    random: Random,
+    modelData: IModelData,
+) : RenderCtxBase(blockCtx, matrixStack, checkSides, random, modelData), ForgeVertexLighter {
+
+    override fun renderQuad(quad: HalfBakedQuad) {
+        // set Forge lighter AO calculator to us
+        vertexLighter.updateLightmapAndColor(quad, lightingData)
+        quad.baked.pipe(lighter)
+    }
+
+    // somewhat ugly hack to pipe lighting values into the Forge pipeline
+    var vIdx = 0
+    override fun updateVertexLightmap(normal: FloatArray, lightmap: FloatArray, x: Float, y: Float, z: Float) {
+        lightingData.packedLight[vIdx].let { packedLight ->
+            lightmap[0] = LightTexture.block(packedLight) / 0xF.toFloat()
+            lightmap[1] = LightTexture.sky(packedLight) / 0xF.toFloat()
+        }
+    }
+
+    override fun updateVertexColor(
+        normal: FloatArray,
+        color: FloatArray,
+        x: Float,
+        y: Float,
+        z: Float,
+        tint: Float,
+        multiplier: Int
+    ) {
+        color[0] = lightingData.tint[0] * lightingData.colorMultiplier[vIdx]
+        color[1] = lightingData.tint[1] * lightingData.colorMultiplier[vIdx]
+        color[2] = lightingData.tint[2] * lightingData.colorMultiplier[vIdx]
+        vIdx++
+    }
+
+    companion object {
+        @JvmStatic
+        fun render(
+            lighter: VertexLighterFlat,
+            world: IBlockDisplayReader,
+            model: SpecialRenderModel,
+            state: BlockState,
+            pos: BlockPos,
+            matrixStack: MatrixStack,
+            checkSides: Boolean,
+            random: Random, seed: Long,
+            modelData: IModelData
+        ): Boolean {
+            val blockCtx = BasicBlockCtx(world, pos)
+            val ctx = RenderCtxForge(blockCtx, lighter, matrixStack, checkSides, random, modelData).apply {
+                lighter.setWorld(world)
+                lighter.setState(state)
+                lighter.setBlockPos(pos)
+                lighter.updateBlockInfo()
+            }
+
+            // render layer
+            return ctx.let {
+                (lighter as ForgeVertexLighterAccess).vertexLighter = it
+                model.renderLayer(it, specialRenderData.get()!!, MinecraftForgeClient.getRenderLayer())
+                lighter.resetBlockInfo()
+                it.hasRendered
+            }
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/render/pipeline/RenderCtxVanilla.kt

@@ -0,0 +1,65 @@
+package mods.betterfoliage.render.pipeline
+
+import com.mojang.blaze3d.matrix.MatrixStack
+import com.mojang.blaze3d.vertex.IVertexBuilder
+import mods.betterfoliage.chunk.BasicBlockCtx
+import mods.betterfoliage.chunk.BlockCtx
+import mods.betterfoliage.model.HalfBakedQuad
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.util.getWithDefault
+import net.minecraft.block.BlockState
+import net.minecraft.client.renderer.BlockModelRenderer
+import net.minecraft.util.math.BlockPos
+import net.minecraft.world.IBlockDisplayReader
+import net.minecraftforge.client.MinecraftForgeClient
+import net.minecraftforge.client.model.data.IModelData
+import java.util.Random
+
+class RenderCtxVanilla(
+    val renderer: BlockModelRenderer,
+    blockCtx: BlockCtx,
+    val buffer: IVertexBuilder,
+    val combinedOverlay: Int,
+    matrixStack: MatrixStack,
+    checkSides: Boolean,
+    random: Random,
+    val randomSeed: Long,
+    modelData: IModelData,
+    val useAO: Boolean
+): RenderCtxBase(blockCtx, matrixStack, checkSides, random, modelData) {
+
+    override fun renderQuad(quad: HalfBakedQuad) {
+        vertexLighter.updateLightmapAndColor(quad, lightingData)
+        buffer.putBulkData(
+            matrixStack.last(), quad.baked,
+            lightingData.colorMultiplier,
+            lightingData.tint[0], lightingData.tint[1], lightingData.tint[2],
+            lightingData.packedLight, combinedOverlay, true
+        )
+    }
+
+    companion object {
+        @JvmStatic
+        fun render(
+            renderer: BlockModelRenderer,
+            world: IBlockDisplayReader,
+            model: SpecialRenderModel,
+            state: BlockState,
+            pos: BlockPos,
+            matrixStack: MatrixStack,
+            buffer: IVertexBuilder,
+            checkSides: Boolean,
+            random: Random,
+            seed: Long,
+            combinedOverlay: Int,
+            modelData: IModelData,
+            smooth: Boolean
+        ): Boolean {
+            val blockCtx = BasicBlockCtx(world, pos)
+            // init context if missing (this is the first render layer)
+            val ctx = RenderCtxVanilla(renderer, blockCtx, buffer, combinedOverlay, matrixStack, checkSides, random, seed, modelData, smooth)
+            model.renderLayer(ctx, specialRenderData.get()!!, MinecraftForgeClient.getRenderLayer())
+            return ctx.hasRendered
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/resource/VeryEarlyReloadListener.kt

@@ -0,0 +1,27 @@
+package mods.betterfoliage.resource
+
+import net.minecraft.profiler.IProfiler
+import net.minecraft.resources.IFutureReloadListener
+import net.minecraft.resources.IResourceManager
+import java.util.concurrent.CompletableFuture
+import java.util.concurrent.Executor
+
+/**
+ * Catch resource reload extremely early, before any of the reloaders
+ * have started working.
+ */
+interface VeryEarlyReloadListener : IFutureReloadListener {
+    override fun reload(
+        stage: IFutureReloadListener.IStage,
+        resourceManager: IResourceManager,
+        preparationsProfiler: IProfiler,
+        reloadProfiler: IProfiler,
+        backgroundExecutor: Executor,
+        gameExecutor: Executor
+    ): CompletableFuture<Void> {
+        onReloadStarted(resourceManager)
+        return stage.wait(null)
+    }
+
+    fun onReloadStarted(resourceManager: IResourceManager) {}
+}

src/main/kotlin/mods/betterfoliage/resource/discovery/BakedModelReplacer.kt

@@ -1,99 +0,0 @@
-package mods.betterfoliage.resource.discovery
-
-import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.BlockModelsReloadCallback
-import mods.betterfoliage.ModelLoadingCallback
-import mods.betterfoliage.util.HasLogger
-import mods.betterfoliage.util.Invalidator
-import mods.betterfoliage.util.YarnHelper
-import mods.betterfoliage.util.get
-import net.fabricmc.fabric.api.event.client.ClientSpriteRegistryCallback
-import net.minecraft.block.BlockState
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.render.block.BlockModels
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.client.render.model.ModelLoader
-import net.minecraft.client.texture.SpriteAtlasTexture
-import net.minecraft.resource.ResourceManager
-import net.minecraft.util.Identifier
-import java.lang.ref.WeakReference
-import java.util.*
-import java.util.concurrent.CompletableFuture
-import java.util.function.Consumer
-import java.util.function.Supplier
-
-// net.minecraft.client.render.block.BlockModels.models
-val BlockModels_models = YarnHelper.requiredField<Map<BlockState, BakedModel>>("net.minecraft.class_773", "field_4162", "Ljava/util/Map;")
-
-class BakedModelReplacer : ModelLoadingCallback, ClientSpriteRegistryCallback, BlockModelsReloadCallback, Invalidator, HasLogger {
-    override val logger get() = BetterFoliage.logDetail
-
-    val discoverers = mutableListOf<ModelDiscovery>()
-    override val callbacks = mutableListOf<WeakReference<()->Unit>>()
-
-    protected var keys = emptyMap<BlockState, BlockRenderKey>()
-
-    operator fun get(state: BlockState) = keys[state]
-    inline fun <reified T> getTyped(state: BlockState) = get(state) as? T
-
-    var currentLoader: ModelLoader? = null
-
-    override fun beginLoadModels(loader: ModelLoader, manager: ResourceManager) {
-        // Step 1: get a hold of the ModelLoader instance when model reloading starts
-        currentLoader = loader
-        log("reloading block discovery configuration")
-        BetterFoliage.blockConfig.reloadConfig(manager)
-        invalidate()
-    }
-
-    override fun registerSprites(atlasTexture: SpriteAtlasTexture, registry: ClientSpriteRegistryCallback.Registry) {
-        // Step 2: ModelLoader is finished with the unbaked models by now, we can inspect them
-        log("discovering blocks")
-        val idSet = Collections.synchronizedSet(mutableSetOf<Identifier>())
-        val allKeys = discoverers.map {
-            // run model discoverers in parallel
-            CompletableFuture.supplyAsync(Supplier {
-                it.discover(currentLoader!!, Consumer { idSet.add(it) })
-            }, MinecraftClient.getInstance())
-        }.map { it.join() }
-        idSet.forEach { registry.register(it) }
-
-        val result = mutableMapOf<BlockState, BlockRenderKey>()
-        allKeys.forEach { keys ->
-            keys.entries.forEach { (state, key) ->
-                val oldKey = result[state]
-                if (oldKey != null) log("Replacing $oldKey with $key for state $state")
-                else log("Adding replacement $key for state $state")
-                result[state] = key
-            }
-        }
-
-        keys = result
-    }
-
-    override fun reloadBlockModels(blockModels: BlockModels) {
-        // Step 3: replace the baked models with our own
-        log("block model baking finished")
-        val modelMap = blockModels[BlockModels_models] as MutableMap<BlockState, BakedModel>
-        keys.forEach { (state, key) ->
-            val oldModel = modelMap[state]
-            if (oldModel == null) log("Cannot find model for state $state, ignoring")
-            else {
-                try {
-                    val newModel = key.replace(oldModel, state)
-                    modelMap[state] = newModel
-                    log("Replaced model for state $state with $key")
-                } catch (e: Exception) {
-                    log("Error creating model for state $state with $key", e)
-                }
-            }
-        }
-    }
-
-    init {
-        ModelLoadingCallback.EVENT.register(this)
-        ClientSpriteRegistryCallback.event(SpriteAtlasTexture.BLOCK_ATLAS_TEX).register(this)
-        BlockModelsReloadCallback.EVENT.register(this)
-    }
-}
-

src/main/kotlin/mods/betterfoliage/resource/discovery/BakingLifecycle.kt

@@ -0,0 +1,135 @@
+package mods.betterfoliage.resource.discovery
+
+import mods.betterfoliage.BetterFoliage
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.HasLogger
+import mods.betterfoliage.util.Invalidator
+import mods.betterfoliage.util.resourceManager
+import net.minecraft.block.BlockState
+import net.minecraft.client.renderer.model.IBakedModel
+import net.minecraft.client.renderer.model.IModelTransform
+import net.minecraft.client.renderer.model.IUnbakedModel
+import net.minecraft.client.renderer.model.ModelBakery
+import net.minecraft.client.renderer.model.RenderMaterial
+import net.minecraft.client.renderer.texture.TextureAtlasSprite
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.client.event.ModelBakeEvent
+import net.minecraftforge.client.event.TextureStitchEvent
+import net.minecraftforge.eventbus.api.Event
+import net.minecraftforge.eventbus.api.EventPriority
+import net.minecraftforge.eventbus.api.SubscribeEvent
+import net.minecraftforge.fml.loading.progress.StartupMessageManager
+import org.apache.logging.log4j.Level.INFO
+import org.apache.logging.log4j.Level.WARN
+import org.apache.logging.log4j.Logger
+import java.lang.ref.WeakReference
+import java.util.function.Function
+
+data class ModelDefinitionsLoadedEvent(
+    val bakery: ModelBakery
+) : Event()
+
+interface ModelBakingKey {
+    fun bake(ctx: ModelBakingContext): IBakedModel? =
+        ctx.getUnbaked().bake(ctx.bakery, ctx.spriteGetter, ctx.transform, ctx.location)
+}
+
+interface ModelDiscovery {
+    fun onModelsLoaded(
+        bakery: ModelBakery,
+        sprites: MutableSet<ResourceLocation>,
+        replacements: MutableMap<ResourceLocation, ModelBakingKey>
+    )
+}
+
+data class ModelDiscoveryContext(
+    val bakery: ModelBakery,
+    val blockState: BlockState,
+    val modelLocation: ResourceLocation,
+    val sprites: MutableSet<ResourceLocation>,
+    val replacements: MutableMap<ResourceLocation, ModelBakingKey>,
+    val logger: Logger
+) {
+    fun getUnbaked(location: ResourceLocation = modelLocation) = bakery.getModel(location)
+    fun addReplacement(key: ModelBakingKey, addToStateKeys: Boolean = true) {
+        replacements[modelLocation] = key
+        if (addToStateKeys) BetterFoliage.blockTypes.stateKeys[blockState] = key
+        logger.log(INFO, "Adding model replacement $modelLocation -> $key")
+    }
+    fun <T: IUnbakedModel> loadHierarchy(model: T) = model.apply {
+        getMaterials(this@ModelDiscoveryContext::getUnbaked, mutableSetOf())
+    }
+}
+
+data class ModelBakingContext(
+    val bakery: ModelBakery,
+    val spriteGetter: Function<RenderMaterial, TextureAtlasSprite>,
+    val location: ResourceLocation,
+    val transform: IModelTransform,
+    val logger: Logger
+) {
+    fun getUnbaked() = bakery.getModel(location)
+    fun getBaked() = bakery.getBakedModel(location, transform, spriteGetter)
+}
+
+class BakeWrapperManager : Invalidator, HasLogger() {
+    val discoverers = mutableListOf<ModelDiscovery>()
+    override val callbacks = mutableListOf<WeakReference<()->Unit>>()
+
+    private val replacements = mutableMapOf<ResourceLocation, ModelBakingKey>()
+    private val sprites = mutableSetOf<ResourceLocation>()
+
+    @SubscribeEvent(priority = EventPriority.LOWEST)
+    fun handleModelLoad(event: ModelDefinitionsLoadedEvent) {
+        val startTime = System.currentTimeMillis()
+        invalidate()
+        BetterFoliage.blockConfig.readConfig(resourceManager)
+        BetterFoliage.blockTypes = BlockTypeCache()
+
+        StartupMessageManager.addModMessage("BetterFoliage: discovering models")
+        logger.log(INFO, "starting model discovery (${discoverers.size} listeners)")
+        discoverers.forEach { listener ->
+            val replacementsLocal = mutableMapOf<ResourceLocation, ModelBakingKey>()
+            listener.onModelsLoaded(event.bakery, sprites, replacements)
+        }
+
+        val elapsed = System.currentTimeMillis() - startTime
+        logger.log(INFO, "finished model discovery in $elapsed ms, ${replacements.size} top-level replacements")
+    }
+
+    @SubscribeEvent
+    fun handleStitch(event: TextureStitchEvent.Pre) {
+        if (event.map.location() == Atlas.BLOCKS.resourceId) {
+            logger.log(INFO, "Adding ${sprites.size} sprites to block atlas")
+            sprites.forEach { event.addSprite(it) }
+            sprites.clear()
+        }
+    }
+
+    @SubscribeEvent
+    fun handleModelBake(event: ModelBakeEvent) {
+        replacements.clear()
+    }
+
+    fun onBake(
+        unbaked: IUnbakedModel,
+        bakery: ModelBakery,
+        spriteGetter: Function<RenderMaterial, TextureAtlasSprite>,
+        transform: IModelTransform,
+        location: ResourceLocation
+    ): IBakedModel? {
+        val ctx = ModelBakingContext(bakery, spriteGetter, location, transform, detailLogger)
+        // bake replacement if available
+        replacements[location]?.let { replacement ->
+            detailLogger.log(INFO, "Baking replacement for [${unbaked::class.java.simpleName}] $location -> $replacement")
+            try {
+                return replacement.bake(ctx)
+            } catch (e: Exception) {
+                detailLogger.log(WARN, "Error while baking $replacement", e)
+                logger.log(WARN, "Error while baking $replacement", e)
+            }
+        }
+        return unbaked.bake(bakery, spriteGetter, transform, location)
+    }
+}

src/main/kotlin/mods/betterfoliage/resource/discovery/BlockTypeCache.kt

@@ -0,0 +1,14 @@
+package mods.betterfoliage.resource.discovery
+
+import net.minecraft.block.BlockState
+
+class BlockTypeCache {
+    val leaf = mutableSetOf<BlockState>()
+    val grass = mutableSetOf<BlockState>()
+    val dirt = mutableSetOf<BlockState>()
+
+    val stateKeys = mutableMapOf<BlockState, ModelBakingKey>()
+
+    inline fun <reified T> getTypedOrNull(state: BlockState) = stateKeys[state] as? T
+    inline fun <reified T> hasTyped(state: BlockState) = stateKeys[state] is T
+}

src/main/kotlin/mods/betterfoliage/resource/discovery/ConfigurableModelDiscovery.kt

@@ -1,53 +0,0 @@
-package mods.betterfoliage.resource.discovery
-
-import com.google.common.base.Joiner
-import mods.betterfoliage.util.YarnHelper
-import mods.betterfoliage.util.get
-import mods.betterfoliage.util.stripStart
-import net.minecraft.block.BlockState
-import net.minecraft.client.render.model.json.JsonUnbakedModel
-import net.minecraft.util.Identifier
-import java.util.function.Consumer
-
-// net.minecraft.client.render.model.json.JsonUnbakedModel.parent
-val JsonUnbakedModel_parent = YarnHelper.requiredField<JsonUnbakedModel>("net.minecraft.class_793", "field_4253", "Lnet/minecraft/class_793;")
-// net.minecraft.client.render.model.json.JsonUnbakedModel.parentId
-val JsonUnbakedModel_parentId = YarnHelper.requiredField<Identifier>("net.minecraft.class_793", "field_4247", "Lnet/minecraft/class_2960;")
-
-fun Pair<JsonUnbakedModel, Identifier>.derivesFrom(targetLocation: Identifier): Boolean {
-    if (second.stripStart("models/") == targetLocation) return true
-    if (first[JsonUnbakedModel_parent] != null && first[JsonUnbakedModel_parentId] != null)
-        return Pair(first[JsonUnbakedModel_parent]!!, first[JsonUnbakedModel_parentId]!!).derivesFrom(targetLocation)
-    return false
-}
-
-abstract class ConfigurableModelDiscovery : ModelDiscoveryBase() {
-
-    abstract val matchClasses: IBlockMatcher
-    abstract val modelTextures: List<ModelTextureList>
-
-    abstract fun processModel(state: BlockState, textures: List<String>, atlas: Consumer<Identifier>): BlockRenderKey?
-
-    override fun processModel(ctx: ModelDiscoveryContext, atlas: Consumer<Identifier>): BlockRenderKey? {
-        val matchClass = matchClasses.matchingClass(ctx.state.block) ?: return null
-        log("block state ${ctx.state.toString()}")
-        log("      class ${ctx.state.block.javaClass.name} matches ${matchClass.name}")
-
-        (ctx.models.filter { it.first is JsonUnbakedModel } as List<Pair<JsonUnbakedModel, Identifier>>).forEach { (model, location) ->
-            val modelMatch = modelTextures.firstOrNull { (model to location).derivesFrom(it.modelLocation) }
-            if (modelMatch != null) {
-                log("      model ${model} matches ${modelMatch.modelLocation}")
-
-                val textures = modelMatch.textureNames.map { it to model.resolveTexture(it) }
-                val texMapString = Joiner.on(", ").join(textures.map { "${it.first}=${it.second}" })
-                log("    sprites [$texMapString]")
-
-                if (textures.all { it.second != "missingno" }) {
-                    // found a valid model (all required textures exist)
-                    return processModel(ctx.state, textures.map { it.second }, atlas)
-                }
-            }
-        }
-        return null
-    }
-}

src/main/kotlin/mods/betterfoliage/resource/discovery/Matchers.kt

@@ -1,13 +1,12 @@
 package mods.betterfoliage.resource.discovery
 
-import mods.betterfoliage.util.getLines
-import mods.betterfoliage.util.INTERMEDIARY
+import mods.betterfoliage.util.HasLogger
 import mods.betterfoliage.util.getJavaClass
-import net.fabricmc.loader.api.FabricLoader
+import mods.betterfoliage.util.getLines
+import mods.betterfoliage.util.resourceManager
 import net.minecraft.block.Block
-import net.minecraft.resource.ResourceManager
-import net.minecraft.util.Identifier
-import org.apache.logging.log4j.Logger
+import net.minecraft.util.ResourceLocation
+import org.apache.logging.log4j.Level.INFO
 
 interface IBlockMatcher {
     fun matchesClass(block: Block): Boolean
@@ -24,8 +23,7 @@ class SimpleBlockMatcher(vararg val classes: Class<*>) : IBlockMatcher {
     }
 }
 
-class ConfigurableBlockMatcher(val logger: Logger, val location: Identifier) : IBlockMatcher {
-
+class ConfigurableBlockMatcher(val location: ResourceLocation) : HasLogger(), IBlockMatcher {
     val blackList = mutableListOf<Class<*>>()
     val whiteList = mutableListOf<Class<*>>()
 
@@ -43,34 +41,32 @@ class ConfigurableBlockMatcher(val logger: Logger, val location: Identifier) : I
         return null
     }
 
-    fun readDefaults(manager: ResourceManager) {
+    fun readDefaults() {
         blackList.clear()
         whiteList.clear()
-        manager.getAllResources(location).forEach { resource ->
-            logger.debug("Reading resource $location from pack ${resource.resourcePackName}")
+        resourceManager.getResources(location).forEach { resource ->
+            detailLogger.log(INFO, "Reading block class configuration $location from pack ${resource.sourceName}")
             resource.getLines().map{ it.trim() }.filter { !it.startsWith("//") && it.isNotEmpty() }.forEach { line ->
-                if (line.startsWith("-")) getBlockClass(line.substring(1))?.let { blackList.add(it) }
-                else getBlockClass(line)?.let { whiteList.add(it) }
+                if (line.startsWith("-")) getJavaClass(line.substring(1))?.let { blackList.add(it) }
+                else getJavaClass(line)?.let { whiteList.add(it) }
 
             }
         }
     }
-
-    fun getBlockClass(name: String) = getJavaClass(FabricLoader.getInstance().mappingResolver.mapClassName(INTERMEDIARY, name))
 }
 
-data class ModelTextureList(val modelLocation: Identifier, val textureNames: List<String>) {
-    constructor(vararg args: String) : this(Identifier(args[0]), listOf(*args).drop(1))
+data class ModelTextureList(val modelLocation: ResourceLocation, val textureNames: List<String>) {
+    constructor(vararg args: String) : this(ResourceLocation(args[0]), listOf(*args).drop(1))
 }
 
-class ModelTextureListConfiguration(val logger: Logger, val location: Identifier) {
+class ModelTextureListConfiguration(val location: ResourceLocation) : HasLogger() {
     val modelList = mutableListOf<ModelTextureList>()
-    fun readDefaults(manager: ResourceManager) {
-        manager.getAllResources(location).forEach { resource ->
-            logger.debug("Reading resource $location from pack ${resource.resourcePackName}")
+    fun readDefaults() {
+        resourceManager.getResources(location).forEach { resource ->
+            detailLogger.log(INFO, "Reading model/texture configuration $location from pack ${resource.sourceName}")
             resource.getLines().map{ it.trim() }.filter { !it.startsWith("//") && it.isNotEmpty() }.forEach { line ->
                 val elements = line.split(",")
-                modelList.add(ModelTextureList(Identifier(elements.first()), elements.drop(1)))
+                modelList.add(ModelTextureList(ResourceLocation(elements.first()), elements.drop(1)))
             }
         }
     }

src/main/kotlin/mods/betterfoliage/resource/discovery/ModelDiscovery.kt

@@ -0,0 +1,108 @@
+package mods.betterfoliage.resource.discovery
+
+import com.google.common.base.Joiner
+import mods.betterfoliage.util.HasLogger
+import net.minecraft.client.renderer.BlockModelShapes
+import net.minecraft.client.renderer.model.BlockModel
+import net.minecraft.client.renderer.model.ModelBakery
+import net.minecraft.client.renderer.model.VariantList
+import net.minecraft.client.renderer.texture.MissingTextureSprite
+import net.minecraft.util.ResourceLocation
+import net.minecraftforge.registries.ForgeRegistries
+import org.apache.logging.log4j.Level
+
+abstract class AbstractModelDiscovery : HasLogger(), ModelDiscovery {
+    override fun onModelsLoaded(
+        bakery: ModelBakery,
+        sprites: MutableSet<ResourceLocation>,
+        replacements: MutableMap<ResourceLocation, ModelBakingKey>
+    ) {
+        ForgeRegistries.BLOCKS
+            .flatMap { block -> block.stateDefinition.possibleStates }
+            .forEach { state ->
+                val location = BlockModelShapes.stateToModelLocation(state)
+                val ctx = ModelDiscoveryContext(bakery, state, location, sprites, replacements, detailLogger)
+                try {
+                    processModel(ctx)
+                } catch (e: Exception) {
+                    logger.log(Level.WARN, "Discovery error in $location", e)
+                }
+            }
+    }
+
+    open fun processModel(ctx: ModelDiscoveryContext) {
+        processContainerModel(ctx)
+    }
+
+    fun processContainerModel(ctx: ModelDiscoveryContext) {
+        val model = ctx.getUnbaked()
+
+        // built-in support for container models
+        if (model is VariantList) {
+            // per-location replacements need to be scoped to the variant list, as replacement models
+            // may need information from the BlockState which is not available at baking time
+            val scopedReplacements = mutableMapOf<ResourceLocation, ModelBakingKey>()
+            model.variants.forEach { variant ->
+                processModel(ctx.copy(modelLocation = variant.modelLocation, replacements = scopedReplacements))
+            }
+            if (scopedReplacements.isNotEmpty()) {
+                ctx.addReplacement(WeightedUnbakedKey(scopedReplacements), addToStateKeys = false)
+            }
+        }
+    }
+}
+
+abstract class ConfigurableModelDiscovery : AbstractModelDiscovery() {
+    abstract val matchClasses: IBlockMatcher
+    abstract val modelTextures: List<ModelTextureList>
+
+    abstract fun processModel(
+        ctx: ModelDiscoveryContext,
+        textureMatch: List<ResourceLocation>
+    )
+
+    override fun processModel(ctx: ModelDiscoveryContext) {
+        val model = ctx.getUnbaked()
+        if (model is BlockModel) {
+            val matchClass = matchClasses.matchingClass(ctx.blockState.block) ?: return
+
+            detailLogger.log(Level.INFO, "block state ${ctx.blockState}")
+            detailLogger.log(Level.INFO, "      model ${ctx.modelLocation}")
+            detailLogger.log(Level.INFO, "      class ${ctx.blockState.block.javaClass.name} matches ${matchClass.name}")
+
+            val ancestry = ctx.bakery.getAncestry(ctx.modelLocation)
+            val matches = modelTextures.filter { matcher ->
+                matcher.modelLocation in ancestry
+            }
+            matches.forEach { match ->
+                    detailLogger.log(Level.INFO, "      model $model matches ${match.modelLocation}")
+
+                val materials = match.textureNames.map { it to model.getMaterial(it) }
+                val texMapString = Joiner.on(", ").join(materials.map { "${it.first}=${it.second.texture()}" })
+                detailLogger.log(Level.INFO, "    sprites [$texMapString]")
+
+                if (materials.all { it.second.texture() != MissingTextureSprite.getLocation() }) {
+                    // found a valid model (all required textures exist)
+                    processModel(ctx, materials.map { it.second.texture() })
+                }
+            }
+            if (matches.isEmpty()) {
+                detailLogger.log(Level.INFO, "      no matches for model ${ctx.modelLocation}, inheritance chain ${ancestry.joinToString(" -> ")}")
+            }
+        }
+        return super.processModel(ctx)
+    }
+}
+
+fun ModelBakery.modelDerivesFrom(model: BlockModel, location: ResourceLocation, target: ResourceLocation): Boolean =
+    if (location == target) true
+    else model.parentLocation
+        ?.let { getModel(it) as? BlockModel }
+        ?.let { parent -> modelDerivesFrom(parent, model.parentLocation!!, target) }
+        ?: false
+
+fun ModelBakery.getAncestry(location: ResourceLocation): List<ResourceLocation> {
+    val model = getModel(location) as? BlockModel ?: return listOf(location)
+    val parentAncestry = model.parentLocation?.let { getAncestry(it) } ?: emptyList()
+    return listOf(location) + parentAncestry
+}

src/main/kotlin/mods/betterfoliage/resource/discovery/ModelDiscoveryBase.kt

@@ -1,76 +0,0 @@
-package mods.betterfoliage.resource.discovery
-
-import mods.betterfoliage.util.HasLogger
-import net.minecraft.block.BlockState
-import net.minecraft.client.render.block.BlockModels
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.client.render.model.ModelLoader
-import net.minecraft.client.render.model.UnbakedModel
-import net.minecraft.client.render.model.json.JsonUnbakedModel
-import net.minecraft.client.render.model.json.ModelVariant
-import net.minecraft.client.render.model.json.WeightedUnbakedModel
-import net.minecraft.client.texture.SpriteAtlasTexture
-import net.minecraft.client.util.ModelIdentifier
-import net.minecraft.util.Identifier
-import net.minecraft.util.registry.Registry
-import java.util.function.Consumer
-
-typealias RenderKeyFactory = (SpriteAtlasTexture)->BlockRenderKey
-
-interface BlockRenderKey {
-    fun replace(model: BakedModel, state: BlockState): BakedModel = model
-}
-
-fun ModelLoader.iterateModels(func: (ModelDiscoveryContext)->Unit) {
-    Registry.BLOCK.flatMap { block ->
-        block.stateFactory.states.map { state -> state to BlockModels.getModelId(state) }
-    }.forEach { (state, stateModelResource) ->
-        func(ModelDiscoveryContext(this, state, stateModelResource))
-    }
-}
-
-/**
- * Information about a single [BlockState] and all the [UnbakedModel]s it could render as.
- */
-class ModelDiscoveryContext(
-    loader: ModelLoader,
-    val state: BlockState,
-    val modelId: ModelIdentifier
-) {
-    val models = loader.unwrapVariants(loader.getOrLoadModel(modelId) to modelId)
-        .filter { it.second != loader.getOrLoadModel(ModelLoader.MISSING) }
-
-    fun ModelLoader.unwrapVariants(modelAndLoc: Pair<UnbakedModel, Identifier>): List<Pair<UnbakedModel, Identifier>> = when(val model = modelAndLoc.first) {
-        is WeightedUnbakedModel -> (model.variants as List<ModelVariant>).flatMap {
-            variant -> unwrapVariants(getOrLoadModel(variant.location) to variant.location)
-        }
-        is JsonUnbakedModel -> listOf(modelAndLoc)
-        else -> emptyList()
-    }
-}
-
-interface ModelDiscovery {
-    fun discover(loader: ModelLoader, atlas: Consumer<Identifier>): Map<BlockState, BlockRenderKey>
-}
-
-abstract class ModelDiscoveryBase : ModelDiscovery, HasLogger {
-    override fun discover(loader: ModelLoader, atlas: Consumer<Identifier>): Map<BlockState, BlockRenderKey> {
-        val keys = mutableMapOf<BlockState, BlockRenderKey>()
-        var errors = 0
-
-        loader.iterateModels { ctx ->
-            try {
-                val result = processModel(ctx, atlas)
-                result?.let { keys[ctx.state] = it }
-            } catch (e: Exception) {
-                errors++
-            }
-        }
-        log("${keys.size} BlockStates discovered, $errors errors")
-        return keys
-    }
-
-    abstract fun processModel(ctx: ModelDiscoveryContext, atlas: Consumer<Identifier>): BlockRenderKey?
-}
-
-

src/main/kotlin/mods/betterfoliage/resource/discovery/RuleBasedDiscovery.kt

@@ -0,0 +1,97 @@
+package mods.betterfoliage.resource.discovery
+
+import mods.betterfoliage.BetterFoliage
+import mods.betterfoliage.config.match.MAnything
+import mods.betterfoliage.config.match.MListAll
+import mods.betterfoliage.config.match.MListAny
+import mods.betterfoliage.config.match.MNegated
+import mods.betterfoliage.config.match.MValue
+import mods.betterfoliage.config.match.MatchRules
+import mods.betterfoliage.util.HasLogger
+import net.minecraft.client.renderer.model.BlockModel
+import net.minecraft.client.renderer.model.VariantList
+import net.minecraft.util.ResourceLocation
+import org.apache.logging.log4j.Level
+
+abstract class ParametrizedModelDiscovery : HasLogger() {
+    abstract fun processModel(ctx: ModelDiscoveryContext, params: Map<String, String>)
+
+    fun Map<String, String>.location(key: String): ResourceLocation? {
+        val result = get(key)?.let { ResourceLocation(it) }
+        if (result == null) detailLogger.log(Level.WARN, "Cannot find texture parameter \"$key\"")
+        return result
+    }
+
+    fun Map<String, String>.int(key: String): Int? {
+        val result = get(key)?.toInt()
+        if (result == null) detailLogger.log(Level.WARN, "Cannot find integer parameter \"$key\"")
+        return result
+    }
+}
+
+class RuleProcessingContext(
+    val discovery: ModelDiscoveryContext
+) {
+    val params = mutableMapOf("type" to "none")
+}
+
+class RuleBasedDiscovery : AbstractModelDiscovery() {
+    val discoverers = mutableMapOf<String, ParametrizedModelDiscovery>()
+
+    override fun processModel(ctx: ModelDiscoveryContext) = when(ctx.getUnbaked()) {
+        is VariantList -> processContainerModel(ctx)
+        is BlockModel -> processBlockModel(ctx)
+        else -> Unit
+    }
+
+    fun processBlockModel(ctx: ModelDiscoveryContext) {
+        val ruleCtx = RuleProcessingContext(ctx)
+        val rulesToCheck = BetterFoliage.blockConfig.rules.toMutableList()
+        val ruleResults = mutableListOf<MListAll>()
+        var previousSize = 0
+
+        // stop processing if nothing changes anymore
+        while (rulesToCheck.size != previousSize) {
+            previousSize = rulesToCheck.size
+            val iterator = rulesToCheck.listIterator()
+            while (iterator.hasNext()) iterator.next().let { rule ->
+                // process single rule
+                MatchRules.visitRoot(ruleCtx, rule).let { result ->
+                    ruleResults.add(result)
+                    // remove rule from active list if:
+                    //  - rule succeeded (all directives returned success)
+                    //  - rule is immutable (result will always be the same)
+                    if (result.value || result.immutable) iterator.remove()
+                }
+            }
+        }
+
+        // log result of rule processing
+        if (ruleResults.any { it.value }) {
+            detailLogger.log(Level.INFO, "================================")
+            detailLogger.log(Level.INFO, "block state: ${ctx.blockState}")
+            detailLogger.log(Level.INFO, "block class: ${ctx.blockState.block::class.java.name}")
+            detailLogger.log(Level.INFO, "model      : ${ctx.modelLocation}")
+            detailLogger.log(Level.INFO, "--------------------------------")
+            ruleResults.forEach { logResult(it) }
+        }
+
+        discoverers[ruleCtx.params["type"]]?.processModel(ctx, ruleCtx.params)
+    }
+
+    fun logResult(match: MAnything<Boolean>) {
+        when(match) {
+            is MListAll -> if (match.list.any { it.value }) {
+                var seenInvariantSuccess = false
+                match.list.forEach { item ->
+                    if (item.immutable && item.value) seenInvariantSuccess = true
+                    if (seenInvariantSuccess) logResult(item)
+                }
+            }
+            is MListAny -> if (match.value) match.list.first { it.value }.let { logResult(it) }
+                else match.list.forEach { logResult(it) }
+            is MNegated -> logResult(match.inner)
+            is MValue<Boolean> -> detailLogger.log(Level.INFO, "[${match.configSource}] ${match.description}")
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/resource/discovery/VanillaWrappers.kt

@@ -0,0 +1,58 @@
+package mods.betterfoliage.resource.discovery
+
+import mods.betterfoliage.model.HalfBakedSimpleModelWrapper
+import mods.betterfoliage.model.SpecialRenderModel
+import mods.betterfoliage.model.WeightedModelWrapper
+import mods.betterfoliage.util.HasLogger
+import net.minecraft.client.renderer.model.IBakedModel
+import net.minecraft.client.renderer.model.SimpleBakedModel
+import net.minecraft.client.renderer.model.VariantList
+import net.minecraft.util.ResourceLocation
+import org.apache.logging.log4j.Level.INFO
+import org.apache.logging.log4j.Level.WARN
+
+class WeightedUnbakedKey(
+    val replacements: Map<ResourceLocation, ModelBakingKey>
+) : ModelBakingKey {
+
+    override fun bake(ctx: ModelBakingContext): IBakedModel? {
+        val unbaked = ctx.getUnbaked()
+        if (unbaked !is VariantList) return super.bake(ctx)
+
+        // bake all variants, replace as needed
+        val bakedModels = unbaked.variants.mapNotNull {
+            val variantCtx = ctx.copy(location = it.modelLocation, transform = it)
+            val replacement = replacements[it.modelLocation]
+            val baked = replacement?.let { replacement ->
+                ctx.logger.log(INFO, "Baking replacement for variant [${variantCtx.getUnbaked()::class.java.simpleName}] ${variantCtx.location} -> $replacement")
+                replacement.bake(variantCtx)
+            } ?: variantCtx.getBaked()
+            when(baked) {
+                is SpecialRenderModel -> it to baked
+                // just in case we replaced some variants in the list, but not others
+                // this should not realistically happen, this is just a best-effort fallback
+                is SimpleBakedModel -> it to HalfBakedSimpleModelWrapper(baked)
+                else -> null
+            }
+        }
+
+        // something fishy going on, possibly unknown model type
+        // let it through unchanged
+        if (bakedModels.isEmpty()) return super.bake(ctx)
+
+        if (bakedModels.size < unbaked.variants.size) {
+            detailLogger.log(
+                WARN,
+                "Dropped ${unbaked.variants.size - bakedModels.size} variants from model ${ctx.location}"
+            )
+        }
+        val weightedSpecials = bakedModels.map { (variant, model) ->
+            WeightedModelWrapper.WeightedModel(model, variant.weight)
+        }
+        return WeightedModelWrapper(weightedSpecials, weightedSpecials[0].model)
+    }
+
+    override fun toString() = "[SpecialRenderVariantList, ${replacements.size} replacements]"
+
+    companion object : HasLogger()
+}

src/main/kotlin/mods/betterfoliage/resource/generated/CenteringTextureGenerator.kt

@@ -3,25 +3,25 @@ package mods.betterfoliage.resource.generated
 import mods.betterfoliage.util.Atlas
 import mods.betterfoliage.util.bytes
 import mods.betterfoliage.util.loadSprite
-import net.minecraft.resource.ResourceManager
-import net.minecraft.util.Identifier
+import net.minecraft.resources.IResourceManager
+import net.minecraft.util.ResourceLocation
 import java.awt.image.BufferedImage
 import java.lang.Math.max
 
-data class CenteredSprite(val sprite: Identifier, val atlas: Atlas = Atlas.BLOCKS, val aspectHeight: Int = 1, val aspectWidth: Int = 1) {
+data class CenteredSprite(val sprite: ResourceLocation, val aspectHeight: Int = 1, val aspectWidth: Int = 1, val atlas: Atlas = Atlas.BLOCKS) {
 
-    fun register(pack: GeneratedBlockTexturePack) = pack.register(this, this::draw)
+    fun register(pack: GeneratedTexturePack) = pack.register(atlas, this, this::draw)
 
-    fun draw(resourceManager: ResourceManager): ByteArray {
-        val baseTexture = resourceManager.loadSprite(atlas.wrap(sprite))
+    fun draw(resourceManager: IResourceManager): ByteArray {
+        val baseTexture = resourceManager.loadSprite(atlas.file(sprite))
 
         val frameWidth = baseTexture.width
         val frameHeight = baseTexture.width * aspectHeight / aspectWidth
         val frames = baseTexture.height / frameHeight
         val size = max(frameWidth, frameHeight)
 
-        val result = BufferedImage(size, size * frames, BufferedImage.TYPE_4BYTE_ABGR)
-        val graphics = result.createGraphics()
+        val resultTexture = BufferedImage(size, size * frames, BufferedImage.TYPE_4BYTE_ABGR)
+        val graphics = resultTexture.createGraphics()
 
         // iterate all frames
         for (frame in 0 until frames) {
@@ -34,6 +34,6 @@ data class CenteredSprite(val sprite: Identifier, val atlas: Atlas = Atlas.BLOCK
             graphics.drawImage(resultFrame, 0, size * frame, null)
         }
 
-        return result.bytes
+        return resultTexture.bytes
     }
 }

src/main/kotlin/mods/betterfoliage/resource/generated/GeneratedBlockTexturePack.kt

@@ -1,92 +0,0 @@
-package mods.betterfoliage.resource.generated
-
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.util.HasLogger
-import net.fabricmc.fabric.api.resource.IdentifiableResourceReloadListener
-import net.minecraft.client.resource.ClientResourcePackContainer
-import net.minecraft.resource.*
-import net.minecraft.resource.ResourcePackContainer.InsertionPosition
-import net.minecraft.resource.ResourceType.CLIENT_RESOURCES
-import net.minecraft.resource.metadata.ResourceMetadataReader
-import net.minecraft.text.LiteralText
-import net.minecraft.util.Identifier
-import net.minecraft.util.profiler.Profiler
-import org.apache.logging.log4j.Logger
-import java.io.IOException
-import java.lang.IllegalStateException
-import java.util.*
-import java.util.concurrent.CompletableFuture
-import java.util.concurrent.ExecutionException
-import java.util.concurrent.Executor
-import java.util.function.Predicate
-import java.util.function.Supplier
-
-/**
- * [ResourcePack] containing generated block textures
- *
- * @param[reloadId] Fabric ID of the pack
- * @param[nameSpace] Resource namespace of pack
- * @param[packName] Friendly name of pack
- * @param[packDesc] Description of pack
- * @param[logger] Logger to log to when generating resources
- */
-class GeneratedBlockTexturePack(val reloadId: Identifier, val nameSpace: String, val packName: String, val packDesc: String, override val logger: Logger) : HasLogger, ResourcePack, IdentifiableResourceReloadListener {
-
-    override fun getName() = reloadId.toString()
-    override fun getNamespaces(type: ResourceType) = setOf(nameSpace)
-    override fun <T : Any?> parseMetadata(deserializer: ResourceMetadataReader<T>) = null
-    override fun openRoot(id: String) = null
-    override fun findResources(type: ResourceType, path: String, maxDepth: Int, filter: Predicate<String>) = emptyList<Identifier>()
-    override fun close() {}
-
-    protected var manager: ResourceManager? = null
-    val identifiers: MutableMap<Any, Identifier> = Collections.synchronizedMap(mutableMapOf<Any, Identifier>())
-    val resources: MutableMap<Identifier, ByteArray> = Collections.synchronizedMap(mutableMapOf<Identifier, ByteArray>())
-
-    fun register(key: Any, func: (ResourceManager)->ByteArray): Identifier {
-        if (manager == null) throw IllegalStateException("Cannot register resources unless resource manager is being reloaded")
-        identifiers[key]?.let { return it }
-
-        val id = Identifier(nameSpace, UUID.randomUUID().toString())
-        val resource = func(manager!!)
-
-        identifiers[key] = id
-        resources[Atlas.BLOCKS.wrap(id)] = resource
-        log("generated resource $key -> $id")
-        return id
-    }
-
-    override fun open(type: ResourceType, id: Identifier) =
-        if (type != CLIENT_RESOURCES) null else
-            try { resources[id]!!.inputStream() }
-            catch (e: ExecutionException) { (e.cause as? IOException)?.let { throw it } }   // rethrow wrapped IOException if present
-
-    override fun contains(type: ResourceType, id: Identifier) =
-        type == CLIENT_RESOURCES && resources.containsKey(id)
-
-    override fun reload(synchronizer: ResourceReloadListener.Synchronizer, manager: ResourceManager, prepareProfiler: Profiler, applyProfiler: Profiler, prepareExecutor: Executor, applyExecutor: Executor): CompletableFuture<Void> {
-        this.manager = manager
-        return synchronizer.whenPrepared(null).thenRun {
-            this.manager = null
-            identifiers.clear()
-            resources.clear()
-        }
-    }
-
-    override fun getFabricId() = reloadId
-
-    /**
-     * Supplier for this resource pack. Adds pack as always-on and hidden.
-     */
-    val finder = object : ResourcePackCreator {
-        val packInfo = ClientResourcePackContainer(
-            packName, true, Supplier { this@GeneratedBlockTexturePack },
-            LiteralText(packName),
-            LiteralText(packDesc),
-            ResourcePackCompatibility.COMPATIBLE, InsertionPosition.TOP, true, null
-        )
-        override fun <T : ResourcePackContainer> registerContainer(nameToPackMap: MutableMap<String, T>, packInfoFactory: ResourcePackContainer.Factory<T>) {
-            (nameToPackMap as MutableMap<String, ResourcePackContainer>)[reloadId.toString()] = packInfo
-        }
-    }
-}

src/main/kotlin/mods/betterfoliage/resource/generated/GeneratedGrass.kt

@@ -1,8 +1,13 @@
 package mods.betterfoliage.resource.generated
 
-import mods.betterfoliage.util.*
-import net.minecraft.resource.ResourceManager
-import net.minecraft.util.Identifier
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.blendRGB
+import mods.betterfoliage.util.bytes
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.loadSprite
+import mods.betterfoliage.util.set
+import net.minecraft.resources.IResourceManager
+import net.minecraft.util.ResourceLocation
 import java.awt.image.BufferedImage
 
 /**
@@ -11,13 +16,13 @@ import java.awt.image.BufferedImage
  *
  * @param[domain] Resource domain of generator
  */
-data class GeneratedGrassSprite(val sprite: Identifier, val isSnowed: Boolean, val atlas: Atlas = Atlas.BLOCKS) {
-    constructor(sprite: String, isSnowed: Boolean) : this(Identifier(sprite), isSnowed)
+data class GeneratedGrass(val baseSprite: ResourceLocation, val isSnowed: Boolean, val atlas: Atlas = Atlas.BLOCKS) {
+    constructor(sprite: String, isSnowed: Boolean) : this(ResourceLocation(sprite), isSnowed)
 
-    fun register(pack: GeneratedBlockTexturePack) = pack.register(this, this::draw)
+    fun register(pack: GeneratedTexturePack) = pack.register(atlas, this, this::draw)
 
-    fun draw(resourceManager: ResourceManager): ByteArray {
-        val baseTexture = resourceManager.loadSprite(atlas.wrap(sprite))
+    fun draw(resourceManager: IResourceManager): ByteArray {
+        val baseTexture = resourceManager.loadSprite(atlas.file(baseSprite))
 
         val result = BufferedImage(baseTexture.width, baseTexture.height, BufferedImage.TYPE_4BYTE_ABGR)
         val graphics = result.createGraphics()
@@ -41,7 +46,7 @@ data class GeneratedGrassSprite(val sprite: Identifier, val isSnowed: Boolean, v
 
         // blend with white if snowed
         if (isSnowed) {
-            for (x in 0..result.width - 1) for (y in 0..result.height - 1) {
+            for (x in 0 until result.width) for (y in 0 until result.height) {
                 result[x, y] = blendRGB(result[x, y], 16777215, 2, 3)
             }
         }

src/main/kotlin/mods/betterfoliage/resource/generated/GeneratedLeafSprite.kt

@@ -1,10 +1,16 @@
 package mods.betterfoliage.resource.generated
 
-import mods.betterfoliage.BetterFoliage
-import mods.betterfoliage.util.*
-import net.minecraft.resource.Resource
-import net.minecraft.resource.ResourceManager
-import net.minecraft.util.Identifier
+import mods.betterfoliage.BetterFoliageMod
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.bytes
+import mods.betterfoliage.util.get
+import mods.betterfoliage.util.loadImage
+import mods.betterfoliage.util.loadSprite
+import mods.betterfoliage.util.resourceManager
+import mods.betterfoliage.util.set
+import net.minecraft.resources.IResource
+import net.minecraft.resources.IResourceManager
+import net.minecraft.util.ResourceLocation
 import java.awt.image.BufferedImage
 
 /**
@@ -15,12 +21,12 @@ import java.awt.image.BufferedImage
  *
  * @param[domain] Resource domain of generator
  */
-data class GeneratedLeafSprite(val sprite: Identifier, val leafType: String, val atlas: Atlas = Atlas.BLOCKS) {
+data class GeneratedLeafSprite(val baseSprite: ResourceLocation, val leafType: String, val atlas: Atlas = Atlas.BLOCKS) {
 
-    fun register(pack: GeneratedBlockTexturePack) = pack.register(this, this::draw)
+    fun register(pack: GeneratedTexturePack) = pack.register(atlas, this, this::draw)
 
-    fun draw(resourceManager: ResourceManager): ByteArray {
-        val baseTexture = resourceManager.loadSprite(atlas.wrap(sprite))
+    fun draw(resourceManager: IResourceManager): ByteArray {
+        val baseTexture = resourceManager.loadSprite(atlas.file(baseSprite))
 
         val size = baseTexture.width
         val frames = baseTexture.height / size
@@ -28,8 +34,8 @@ data class GeneratedLeafSprite(val sprite: Identifier, val leafType: String, val
         val maskTexture = (getLeafMask(leafType, size * 2) ?: getLeafMask("default", size * 2))?.loadImage()
         fun scale(i: Int) = i * maskTexture!!.width / (size * 2)
 
-        val result = BufferedImage(size * 2, size * 2 * frames, BufferedImage.TYPE_4BYTE_ABGR)
-        val graphics = result.createGraphics()
+        val leafTexture = BufferedImage(size * 2, size * 2 * frames, BufferedImage.TYPE_4BYTE_ABGR)
+        val graphics = leafTexture.createGraphics()
 
         // iterate all frames
         for (frame in 0 until frames) {
@@ -57,7 +63,7 @@ data class GeneratedLeafSprite(val sprite: Identifier, val leafType: String, val
             graphics.drawImage(leafFrame, 0, size * frame * 2, null)
         }
 
-        return result.bytes
+        return leafTexture.bytes
     }
 
     /**
@@ -67,7 +73,7 @@ data class GeneratedLeafSprite(val sprite: Identifier, val leafType: String, val
      * @param[maxSize] Preferred mask size.
      */
     fun getLeafMask(type: String, maxSize: Int) = getMultisizeTexture(maxSize) { size ->
-        Atlas.BLOCKS.wrap(Identifier(BetterFoliage.MOD_ID, "blocks/leafmask_${size}_${type}"))
+        Atlas.BLOCKS.file(ResourceLocation(BetterFoliageMod.MOD_ID, "blocks/leafmask_${size}_${type}"))
     }
 
     /**
@@ -77,10 +83,10 @@ data class GeneratedLeafSprite(val sprite: Identifier, val leafType: String, val
      * @param[maskPath] Location of the texture of the given size
      *
      */
-    fun getMultisizeTexture(maxSize: Int, maskPath: (Int)->Identifier): Resource? {
+    fun getMultisizeTexture(maxSize: Int, maskPath: (Int)->ResourceLocation): IResource? {
         var size = maxSize
         val sizes = mutableListOf<Int>()
         while(size > 2) { sizes.add(size); size /= 2 }
-        return sizes.findFirst { resourceManager[maskPath(it)] }
+        return sizes.map { resourceManager[maskPath(it)] }.filterNotNull().firstOrNull()
     }
 }

src/main/kotlin/mods/betterfoliage/resource/generated/ResourceGeneration.kt

@@ -0,0 +1,69 @@
+package mods.betterfoliage.resource.generated
+
+import mods.betterfoliage.util.Atlas
+import mods.betterfoliage.util.HasLogger
+import net.minecraft.client.Minecraft
+import net.minecraft.resources.*
+import net.minecraft.resources.ResourcePackType.CLIENT_RESOURCES
+import net.minecraft.resources.data.IMetadataSectionSerializer
+import net.minecraft.util.ResourceLocation
+import net.minecraft.util.text.StringTextComponent
+import org.apache.logging.log4j.Level.INFO
+import java.util.*
+import java.util.function.Consumer
+import java.util.function.Predicate
+import java.util.function.Supplier
+
+/**
+ * [IResourcePack] containing generated resources
+ *
+ * @param[name] Name of the resource pack
+ * @param[generators] List of resource generators
+ */
+class GeneratedTexturePack(
+    val nameSpace: String, val packName: String
+) : HasLogger(), IResourcePack {
+    override fun getName() = packName
+    override fun getNamespaces(type: ResourcePackType) = setOf(nameSpace)
+    override fun <T : Any?> getMetadataSection(deserializer: IMetadataSectionSerializer<T>) = null
+    override fun getRootResource(id: String) = null
+    override fun getResources(type: ResourcePackType, namespace:String, path: String, maxDepth: Int, filter: Predicate<String>) = emptyList<ResourceLocation>()
+
+    override fun close() {}
+
+    protected var manager: IResourceManager = Minecraft.getInstance().resourceManager
+    val identifiers = Collections.synchronizedMap(mutableMapOf<Any, ResourceLocation>())
+    val resources = Collections.synchronizedMap(mutableMapOf<ResourceLocation, ByteArray>())
+
+    fun register(atlas: Atlas, key: Any, func: (IResourceManager)->ByteArray): ResourceLocation {
+        identifiers[key]?.let { return it }
+
+        val id = ResourceLocation(nameSpace, UUID.randomUUID().toString())
+        val fileName = atlas.file(id)
+        val resource = func(manager)
+
+        identifiers[key] = id
+        resources[fileName] = resource
+        detailLogger.log(INFO, "generated resource $key -> $fileName")
+        return id
+    }
+
+    override fun getResource(type: ResourcePackType, id: ResourceLocation) =
+        if (type != CLIENT_RESOURCES) null else resources[id]?.inputStream()
+
+    override fun hasResource(type: ResourcePackType, id: ResourceLocation) =
+        type == CLIENT_RESOURCES && resources.containsKey(id)
+
+    val finder = object : IPackFinder {
+        val packInfo = ResourcePackInfo(
+            packName, true, Supplier { this@GeneratedTexturePack },
+            StringTextComponent(packName),
+            StringTextComponent("Generated block textures resource pack"),
+            PackCompatibility.COMPATIBLE, ResourcePackInfo.Priority.TOP, true, IPackNameDecorator.DEFAULT, true
+        )
+
+        override fun loadPacks(p0: Consumer<ResourcePackInfo>, p1: ResourcePackInfo.IFactory) {
+            p0.accept(packInfo)
+        }
+    }
+}

src/main/kotlin/mods/betterfoliage/resource/model/Meshify.kt

@@ -1,114 +0,0 @@
-package mods.betterfoliage.resource.model
-
-import mods.betterfoliage.util.Double3
-import mods.betterfoliage.util.allDirections
-import mods.betterfoliage.util.findFirst
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.block.BlockState
-import net.minecraft.client.render.VertexFormat
-import net.minecraft.client.render.VertexFormatElement
-import net.minecraft.client.render.VertexFormatElement.Format.FLOAT
-import net.minecraft.client.render.VertexFormatElement.Format.UBYTE
-import net.minecraft.client.render.VertexFormatElement.Type.*
-import net.minecraft.client.render.VertexFormatElement.Type.UV
-import net.minecraft.client.render.VertexFormats
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.client.render.model.BakedQuad
-import net.minecraft.util.math.Direction
-import java.lang.Float
-import java.util.*
-
-interface BakedModelConverter {
-    /**
-     * Convert baked model. Returns null if conversion unsuccessful (wrong input type).
-     * @param model Input model
-     * @param converter Converter to use for converting nested models.
-     */
-    fun convert(model: BakedModel, converter: BakedModelConverter): BakedModel?
-    companion object {
-        fun of(func: (BakedModel, BakedModelConverter)->BakedModel?) = object : BakedModelConverter {
-            override fun convert(model: BakedModel, converter: BakedModelConverter) = func(model, converter)
-        }
-        val identity = of { model, _ -> model }
-    }
-}
-
-/**
- * Convert [BakedModel] using the provided list of [BakedModelConverter]s (in order).
- * If all converters fail, gives the original model back.
- */
-fun List<BakedModelConverter>.convert(model: BakedModel) = object : BakedModelConverter {
-    val converters = this@convert + BakedModelConverter.identity
-    override fun convert(model: BakedModel, converter: BakedModelConverter) = converters.findFirst { it.convert(model, converter) }
-}.let { converterStack ->
-    // we are guaranteed a result here because of the identity converter
-    converterStack.convert(model, converterStack)!!
-}
-
-/** List of converters without meaningful configuration that should always be used */
-val COMMON_MESH_CONVERTERS = listOf(WrappedWeightedModel.converter)
-
-/**
- * Convert [BakedModel] into one using fabric-rendering-api [Mesh] instead of the vanilla pipeline.
- * @param renderLayerOverride Use the given [BlockRenderLayer] for the [Mesh]
- * instead of the one declared by the corresponding [Block]
- */
-fun meshifyStandard(model: BakedModel, state: BlockState, renderLayerOverride: BlockRenderLayer? = null) =
-    (COMMON_MESH_CONVERTERS + WrappedMeshModel.converter(state, renderLayerOverride = renderLayerOverride)).convert(model)
-
-/**
- * Convert a vanilla [BakedModel] into intermediate [Quad]s
- * Vertex normals not supported (yet)
- * Vertex data elements not aligned to 32 bit boundaries not supported
- */
-fun unbakeQuads(model: BakedModel, state: BlockState, random: Random, unshade: Boolean): List<Quad> {
-    return (allDirections.toList() + null as Direction?).flatMap { face ->
-        model.getQuads(state, face, random).mapIndexed { qIdx, bakedQuad ->
-            var quad = Quad(Vertex(), Vertex(), Vertex(), Vertex(), face = face, colorIndex = bakedQuad.colorIndex, sprite = bakedQuad.sprite)
-
-            val format = quadVertexFormat(bakedQuad)
-            val stride = format.vertexSizeInteger
-            format.getIntOffset(POSITION, FLOAT, 3)?.let { posOffset ->
-                quad = quad.transformVI { vertex, vIdx -> vertex.copy(xyz = Double3(
-                    x = Float.intBitsToFloat(bakedQuad.vertexData[vIdx * stride + posOffset + 0]).toDouble(),
-                    y = Float.intBitsToFloat(bakedQuad.vertexData[vIdx * stride + posOffset + 1]).toDouble(),
-                    z = Float.intBitsToFloat(bakedQuad.vertexData[vIdx * stride + posOffset + 2]).toDouble()
-                )) }
-            }
-            format.getIntOffset(COLOR, UBYTE, 4)?.let { colorOffset ->
-                quad = quad.transformVI { vertex, vIdx -> vertex.copy(
-                    color = Color(bakedQuad.vertexData[vIdx * stride + colorOffset])
-                ) }
-            }
-            format.getIntOffset(UV, FLOAT, 2, 0)?.let { uvOffset ->
-                quad = quad.transformVI { vertex, vIdx -> vertex.copy(uv = UV(
-                    u = Float.intBitsToFloat(bakedQuad.vertexData[vIdx * stride + uvOffset + 0]).toDouble(),
-                    v = Float.intBitsToFloat(bakedQuad.vertexData[vIdx * stride + uvOffset + 1]).toDouble()
-                )) }
-            }
-
-            quad = quad.transformV { it.copy(uv = it.uv.unbake(quad.sprite!!)) }.move(Double3(-0.5, -0.5, -0.5))
-            if (unshade) quad = quad.transformV { it.copy(color = it.color * (1.0f / Color.bakeShade(quad.face))) }
-            quad
-        }
-    }
-}
-
-/** Get the byte offset of the [VertexFormatElement] matching the given criteria */
-fun VertexFormat.getByteOffset(type: VertexFormatElement.Type, format: VertexFormatElement.Format, count: Int, index: Int = 0): Int? {
-    elements.forEachIndexed { idx, element ->
-        if (element.type == type && element.format == format && element.count == count && element.index == index)
-            return getElementOffset(idx)
-    }
-    return null
-}
-
-/**
- * Get the int (32 bit) offset of the [VertexFormatElement] matching the given criteria
- * Returns null if the element is not properly aligned
- */
-fun VertexFormat.getIntOffset(type: VertexFormatElement.Type, format: VertexFormatElement.Format, count: Int, index: Int = 0) =
-    getByteOffset(type, format, count, index)?.let { if (it % 4 == 0) it / 4 else null }
-
-/** Function to determine [VertexFormat] used by [BakedQuad] */
-var quadVertexFormat: (BakedQuad)->VertexFormat = { VertexFormats.POSITION_COLOR_UV_LMAP }

src/main/kotlin/mods/betterfoliage/resource/model/Quads.kt

@@ -1,230 +0,0 @@
-package mods.betterfoliage.resource.model
-
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.util.*
-import mods.betterfoliage.util.minmax
-import net.fabricmc.fabric.api.renderer.v1.RendererAccess
-import net.fabricmc.fabric.api.renderer.v1.mesh.Mesh
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.client.texture.MissingSprite
-import net.minecraft.client.texture.Sprite
-import net.minecraft.util.math.Direction
-import net.minecraft.util.math.Direction.*
-import java.lang.Math.max
-import java.lang.Math.min
-import kotlin.math.cos
-import kotlin.math.sin
-import kotlin.random.Random
-
-/**
- * Vertex UV coordinates
- *
- * Zero-centered: sprite coordinates fall between (-0.5, 0.5)
- */
-data class UV(val u: Double, val v: Double) {
-    companion object {
-        val topLeft = UV(-0.5, -0.5)
-        val topRight = UV(0.5, -0.5)
-        val bottomLeft = UV(-0.5, 0.5)
-        val bottomRight = UV(0.5, 0.5)
-    }
-
-    val rotate: UV get() = UV(v, -u)
-
-    fun rotate(n: Int) = when(n % 4) {
-        0 -> copy()
-        1 -> UV(v, -u)
-        2 -> UV(-u, -v)
-        else -> UV(-v, u)
-    }
-
-    fun clamp(minU: Double = -0.5, maxU: Double = 0.5, minV: Double = -0.5, maxV: Double = 0.5) =
-        UV(u.minmax(minU, maxU), v.minmax(minV, maxV))
-
-    fun mirror(mirrorU: Boolean, mirrorV: Boolean) = UV(if (mirrorU) -u else u, if (mirrorV) -v else v)
-
-    fun unbake(sprite: Sprite) = UV(
-        (u - sprite.minU.toDouble()) / (sprite.maxU - sprite.minU).toDouble() - 0.5,
-        (v - sprite.minV.toDouble()) / (sprite.maxV - sprite.minV).toDouble() - 0.5
-    )
-}
-
-data class Color(val alpha: Int, val red: Int, val green: Int, val blue: Int) {
-    constructor(combined: Int) : this(combined shr 24 and 255, combined shr 16 and 255, combined shr 8 and 255, combined and 255)
-    val asInt get() = (alpha shl 24) or (red shl 16) or (green shl 8) or blue
-    operator fun times(f: Float) = Color(
-        alpha,
-        (f * red.toFloat()).toInt().coerceIn(0 until 256),
-        (f * green.toFloat()).toInt().coerceIn(0 until 256),
-        (f * blue.toFloat()).toInt().coerceIn(0 until 256)
-    )
-    companion object {
-        val white get() = Color(255, 255, 255, 255)
-        /** Amount of vanilla diffuse lighting applied to face quads */
-        fun bakeShade(dir: Direction?) = when(dir) {
-            DOWN -> 0.5f
-            NORTH, SOUTH -> 0.8f
-            EAST, WEST -> 0.6f
-            else -> 1.0f
-        }
-    }
-}
-
-data class HSB(var hue: Float, var saturation: Float, var brightness: Float) {
-    companion object {
-        fun fromColor(color: Int): HSB {
-            val hsbVals = java.awt.Color.RGBtoHSB((color shr 16) and 255, (color shr 8) and 255, color and 255, null)
-            return HSB(hsbVals[0], hsbVals[1], hsbVals[2])
-        }
-    }
-    val asColor: Int get() = java.awt.Color.HSBtoRGB(hue, saturation, brightness)
-}
-
-/**
- * Model vertex
- *
- * @param[xyz] x, y, z coordinates
- * @param[uv] u, v coordinates
- * @param[color] vertex color RGB components
- * @param[alpha] vertex color alpha component
- */
-data class Vertex(val xyz: Double3 = Double3(0.0, 0.0, 0.0),
-                  val uv: UV = UV(0.0, 0.0),
-                  val color: Color = Color.white,
-                  val alpha: Int = 255,
-                  val normal: Double3? = null
-)
-
-/**
- * Intermediate (fabric-renderer-api independent) representation of model quad
- * Immutable, double-precision
- * Zero-centered (both XYZ and UV) coordinates for simpler rotation/mirroring
- */
-data class Quad(
-    val v1: Vertex, val v2: Vertex, val v3: Vertex, val v4: Vertex,
-    val sprite: Sprite? = null,
-    val colorIndex: Int = -1,
-    val face: Direction? = null
-) {
-    val verts = arrayOf(v1, v2, v3, v4)
-
-    inline fun transformV(trans: (Vertex)-> Vertex): Quad = transformVI { vertex, idx -> trans(vertex) }
-    inline fun transformVI(trans: (Vertex, Int)-> Vertex): Quad = copy(
-        v1 = trans(v1, 0), v2 = trans(v2, 1), v3 = trans(v3, 2), v4 = trans(v4, 3)
-    )
-    val normal: Double3 get() = (v2.xyz - v1.xyz).cross(v4.xyz - v1.xyz).normalize
-
-    fun move(trans: Double3) = transformV { it.copy(xyz = it.xyz + trans) }
-    fun move(trans: Pair<Double, Direction>) = move(Double3(trans.second) * trans.first)
-    fun scale (scale: Double) = transformV { it.copy(xyz = it.xyz * scale) }
-    fun scale (scale: Double3) = transformV { it.copy(xyz = Double3(it.xyz.x * scale.x, it.xyz.y * scale.y, it.xyz.z * scale.z)) }
-    fun rotate(rot: Rotation) = transformV { it.copy(xyz = it.xyz.rotate(rot), normal = it.normal?.rotate(rot)) }.copy(face = face?.rotate(rot))
-    fun rotateZ(angle: Double) = transformV { it.copy(
-        xyz = Double3(it.xyz.x * cos(angle) + it.xyz.z * sin(angle), it.xyz.y, it.xyz.z * cos(angle) - it.xyz.x * sin(angle)),
-        normal = it.normal?.let { normal-> Double3(normal.x * cos(angle) + normal.z * sin(angle), normal.y, normal.z * cos(angle) - normal.x * sin(angle)) }
-    ) }
-
-    fun scaleUV (scale: Double) = transformV { it.copy(uv = UV(it.uv.u * scale, it.uv.v * scale)) }
-    fun rotateUV(n: Int) = transformV { it.copy(uv = it.uv.rotate(n)) }
-    fun clampUV(minU: Double = -0.5, maxU: Double = 0.5, minV: Double = -0.5, maxV: Double = 0.5) =
-        transformV { it.copy(uv = it.uv.clamp(minU, maxU, minV, maxV)) }
-    fun mirrorUV(mirrorU: Boolean, mirrorV: Boolean) = transformV { it.copy(uv = it.uv.mirror(mirrorU, mirrorV)) }
-    fun scrambleUV(random: Random, canFlipU: Boolean, canFlipV: Boolean, canRotate: Boolean) = this
-        .mirrorUV(canFlipU && random.nextBoolean(), canFlipV && random.nextBoolean())
-        .let { if (canRotate) it.rotateUV(random.nextInt(4)) else it }
-
-    fun sprite(sprite: Sprite) = copy(sprite = sprite)
-    fun color(color: Color) = transformV { it.copy(color = color) }
-    fun color(color: Int) = transformV { it.copy(color = Color(color)) }
-    fun colorIndex(colorIndex: Int) = copy(colorIndex = colorIndex)
-    fun colorAndIndex(color: Int?) = color(color ?: Color.white.asInt).colorIndex(if (color == null) 0 else -1)
-
-    val flipped: Quad get() = Quad(v4, v3, v2, v1, sprite, colorIndex)
-    fun cycleVertices(n: Int) = when(n % 4) {
-        1 -> Quad(v2, v3, v4, v1)
-        2 -> Quad(v3, v4, v1, v2)
-        3 -> Quad(v4, v1, v2, v3)
-        else -> this.copy()
-    }
-
-    companion object {
-        fun mix(first: Quad, second: Quad, vertexFactory: (Vertex, Vertex)-> Vertex) = Quad(
-            v1 = vertexFactory(first.v1, second.v1),
-            v2 = vertexFactory(first.v2, second.v2),
-            v3 = vertexFactory(first.v3, second.v3),
-            v4 = vertexFactory(first.v4, second.v4)
-        )
-    }
-}
-
-fun List<Quad>.transform(trans: Quad.()-> Quad) = map { it.trans() }
-fun Array<List<Quad>>.transform(trans: Quad.(Int)-> Quad) = mapIndexed { idx, qList -> qList.map { it.trans(idx) } }.toTypedArray()
-
-fun List<Quad>.withOpposites() = flatMap { listOf(it, it.flipped) }
-fun Array<List<Quad>>.withOpposites() = map { it.withOpposites() }.toTypedArray()
-
-/**
- * Pour quad data into a fabric-renderer-api Mesh
- */
-fun List<Quad>.build(layer: BlockRenderLayer, noDiffuse: Boolean = false, flatLighting: Boolean = false): Mesh {
-    val renderer = RendererAccess.INSTANCE.renderer
-    val material = renderer.materialFinder().blendMode(0, layer).disableAo(0, flatLighting).disableDiffuse(0, noDiffuse).find()
-    val builder = renderer.meshBuilder()
-    builder.emitter.apply {
-        forEach { quad ->
-            val sprite = quad.sprite ?: Atlas.BLOCKS.atlas[MissingSprite.getMissingSpriteId()]!!
-            quad.verts.forEachIndexed { idx, vertex ->
-                pos(idx, (vertex.xyz + Double3(0.5, 0.5, 0.5)).asVec3f)
-                sprite(idx, 0,
-                    (sprite.maxU - sprite.minU) * (vertex.uv.u.toFloat() + 0.5f) + sprite.minU,
-                    (sprite.maxV - sprite.minV) * (vertex.uv.v.toFloat() + 0.5f) + sprite.minV
-                )
-                spriteColor(idx, 0, vertex.color.asInt)
-            }
-            cullFace(quad.face)
-            colorIndex(quad.colorIndex)
-            material(material)
-            emit()
-        }
-    }
-    return builder.build()
-}
-
-fun Array<List<Quad>>.build(layer: BlockRenderLayer, noDiffuse: Boolean = false, flatLighting: Boolean = false) = map { it.build(layer, noDiffuse, flatLighting) }.toTypedArray()
-
-/**
- * The model should be positioned so that (0,0,0) is the block center.
- * The block extends to (-0.5, 0.5) in all directions (inclusive).
- */
-fun verticalRectangle(x1: Double, z1: Double, x2: Double, z2: Double, yBottom: Double, yTop: Double) = Quad(
-    Vertex(Double3(x1, yBottom, z1), UV.bottomLeft),
-    Vertex(Double3(x2, yBottom, z2), UV.bottomRight),
-    Vertex(Double3(x2, yTop, z2), UV.topRight),
-    Vertex(Double3(x1, yTop, z1), UV.topLeft)
-)
-
-fun horizontalRectangle(x1: Double, z1: Double, x2: Double, z2: Double, y: Double): Quad {
-    val xMin = min(x1, x2); val xMax = max(x1, x2)
-    val zMin = min(z1, z2); val zMax = max(z1, z2)
-    return Quad(
-        Vertex(Double3(xMin, y, zMin), UV.topLeft),
-        Vertex(Double3(xMin, y, zMax), UV.bottomLeft),
-        Vertex(Double3(xMax, y, zMax), UV.bottomRight),
-        Vertex(Double3(xMax, y, zMin), UV.topRight)
-    )
-}
-
-fun faceQuad(face: Direction): Quad {
-    val base = face.vec * 0.5
-    val top = boxFaces[face].top * 0.5
-    val left = boxFaces[face].left * 0.5
-    return Quad(
-        Vertex(base + top + left, UV.topLeft),
-        Vertex(base - top + left, UV.bottomLeft),
-        Vertex(base - top - left, UV.bottomRight),
-        Vertex(base + top - left, UV.topRight),
-        face = face
-    )
-}
-
-fun xzDisk(modelIdx: Int) = (PI2 * modelIdx / 64.0).let { Double3(cos(it), 0.0, sin(it)) }

src/main/kotlin/mods/betterfoliage/resource/model/SpriteSets.kt

@@ -1,70 +0,0 @@
-package mods.betterfoliage.resource.model
-
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.util.get
-import net.fabricmc.fabric.api.event.client.ClientSpriteRegistryCallback
-import net.minecraft.client.MinecraftClient
-import net.minecraft.client.texture.MissingSprite
-import net.minecraft.client.texture.Sprite
-import net.minecraft.client.texture.SpriteAtlasTexture
-import net.minecraft.util.Identifier
-import kotlin.properties.ReadOnlyProperty
-import kotlin.reflect.KProperty
-
-interface SpriteSet {
-    val num: Int
-    operator fun get(idx: Int): Sprite
-}
-
-class FixedSpriteSet(val sprites: List<Sprite>) : SpriteSet {
-    override val num = sprites.size
-    override fun get(idx: Int) = sprites[idx % num]
-
-    constructor(atlas: Atlas, ids: List<Identifier>) : this(
-        ids.mapNotNull { atlas.atlas[it] }.let { sprites ->
-            if (sprites.isNotEmpty()) sprites else listOf(atlas.atlas[MissingSprite.getMissingSpriteId()]!!)
-        }
-    )
-}
-
-class SpriteDelegate(val atlas: Atlas, val idFunc: ()->Identifier) : ReadOnlyProperty<Any, Sprite>, ClientSpriteRegistryCallback {
-    private var id: Identifier? = null
-    private var value: Sprite? = null
-
-    init { ClientSpriteRegistryCallback.event(atlas.resourceId).register(this) }
-
-    override fun registerSprites(atlasTexture: SpriteAtlasTexture, registry: ClientSpriteRegistryCallback.Registry) {
-        id = idFunc(); value = null
-        registry.register(id)
-    }
-
-    override fun getValue(thisRef: Any, property: KProperty<*>): Sprite {
-        value?.let { return it }
-        synchronized(this) {
-            value?.let { return it }
-            atlas.atlas[id!!]!!.let { value = it; return it }
-        }
-    }
-}
-
-class SpriteSetDelegate(val atlas: Atlas, val idRegister: (Identifier)->Identifier = { it }, val idFunc: (Int)->Identifier) : ReadOnlyProperty<Any, SpriteSet>, ClientSpriteRegistryCallback {
-    private var idList: List<Identifier> = emptyList()
-    private var spriteSet: SpriteSet? = null
-    init { ClientSpriteRegistryCallback.event(atlas.resourceId).register(this) }
-
-    override fun registerSprites(atlasTexture: SpriteAtlasTexture, registry: ClientSpriteRegistryCallback.Registry) {
-        spriteSet = null
-        val manager = MinecraftClient.getInstance().resourceManager
-        idList = (0 until 16).map(idFunc).filter { manager.containsResource(atlas.wrap(it)) }.map(idRegister)
-        idList.forEach { registry.register(it) }
-    }
-
-    override fun getValue(thisRef: Any, property: KProperty<*>): SpriteSet {
-        spriteSet?.let { return it }
-        synchronized(this) {
-            spriteSet?.let { return it }
-            spriteSet = FixedSpriteSet(atlas, idList)
-            return spriteSet!!
-        }
-    }
-}

src/main/kotlin/mods/betterfoliage/resource/model/TuftMeshes.kt

@@ -1,74 +0,0 @@
-package mods.betterfoliage.resource.model
-
-import mods.betterfoliage.util.Atlas
-import mods.betterfoliage.util.*
-import net.fabricmc.fabric.api.renderer.v1.RendererAccess
-import net.fabricmc.fabric.api.renderer.v1.mesh.Mesh
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.block.BlockRenderLayer.CUTOUT_MIPPED
-import net.minecraft.client.texture.Sprite
-import net.minecraft.util.Identifier
-import net.minecraft.util.math.Direction.UP
-
-data class TuftShapeKey(
-    val size: Double,
-    val height: Double,
-    val offset: Double3,
-    val flipU1: Boolean,
-    val flipU2: Boolean
-)
-
-fun tuftShapeSet(size: Double, heightMin: Double, heightMax: Double, hOffset: Double): Array<TuftShapeKey> {
-    return Array(64) { idx ->
-        TuftShapeKey(
-            size,
-            randomD(heightMin, heightMax),
-            xzDisk(idx) * randomD(hOffset / 2.0, hOffset),
-            randomB(),
-            randomB()
-        )
-    }
-}
-
-fun tuftQuadSingle(size: Double, height: Double, flipU: Boolean) =
-    verticalRectangle(x1 = -0.5 * size, z1 = 0.5 * size, x2 = 0.5 * size, z2 = -0.5 * size, yBottom = 0.5, yTop = 0.5 + height)
-        .mirrorUV(flipU, false)
-
-fun tuftModelSet(shapes: Array<TuftShapeKey>, overrideColor: Int?, spriteGetter: (Int)->Sprite) = shapes.mapIndexed { idx, shape ->
-    listOf(
-        tuftQuadSingle(shape.size, shape.height, shape.flipU1),
-        tuftQuadSingle(shape.size, shape.height, shape.flipU2).rotate(rot(UP))
-    ).map { it.move(shape.offset) }
-        .map { it.colorAndIndex(overrideColor) }
-        .map { it.sprite(spriteGetter(idx)) }
-}.toTypedArray()
-
-fun fullCubeTextured(spriteId: Identifier, overrideColor: Int?, scrambleUV: Boolean = true): Mesh {
-    val sprite = Atlas.BLOCKS.atlas[spriteId]!!
-    return allDirections.map { faceQuad(it) }
-        .map { if (!scrambleUV) it else it.rotateUV(randomI(max = 4)) }
-        .map { it.sprite(sprite) }
-        .map { it.colorAndIndex(overrideColor) }
-        .build(BlockRenderLayer.SOLID)
-}
-
-fun crossModelsRaw(num: Int, size: Double, hOffset: Double, vOffset: Double): Array<List<Quad>> {
-    return Array(num) { idx ->
-        listOf(
-            verticalRectangle(x1 = -0.5, z1 = 0.5, x2 = 0.5, z2 = -0.5, yBottom = -0.5 * 1.41, yTop = 0.5 * 1.41),
-            verticalRectangle(x1 = -0.5, z1 = 0.5, x2 = 0.5, z2 = -0.5, yBottom = -0.5 * 1.41, yTop = 0.5 * 1.41)
-                .rotate(rot(UP))
-        ).map { it.scale(size) }
-        .map { it.move(xzDisk(idx) * hOffset) }
-        .map { it.move(UP.vec * randomD(-1.0, 1.0) * vOffset) }
-    }
-}
-
-fun crossModelsTextured(leafBase: Array<List<Quad>>, overrideColor: Int?, scrambleUV: Boolean, spriteGetter: (Int)->Sprite) = leafBase.map { leaf ->
-    leaf.map { if (scrambleUV) it.scrambleUV(random, canFlipU = true, canFlipV = true, canRotate = true) else it }
-        .map { it.colorAndIndex(overrideColor) }
-        .mapIndexed { idx, quad -> quad.sprite(spriteGetter(idx)) }
-        .withOpposites().build(CUTOUT_MIPPED)
-}.toTypedArray()
-
-fun Array<List<Quad>>.buildTufts() = withOpposites().build(CUTOUT_MIPPED)

src/main/kotlin/mods/betterfoliage/resource/model/VanillaWrappers.kt

@@ -1,86 +0,0 @@
-package mods.betterfoliage.resource.model
-
-import mods.betterfoliage.util.YarnHelper
-import mods.betterfoliage.util.get
-import net.fabricmc.fabric.api.renderer.v1.mesh.Mesh
-import net.fabricmc.fabric.api.renderer.v1.model.FabricBakedModel
-import net.fabricmc.fabric.api.renderer.v1.render.RenderContext
-import net.minecraft.block.BlockRenderLayer
-import net.minecraft.block.BlockState
-import net.minecraft.client.render.model.BakedModel
-import net.minecraft.client.render.model.BasicBakedModel
-import net.minecraft.client.render.model.WeightedBakedModel
-import net.minecraft.item.ItemStack
-import net.minecraft.util.WeightedPicker
-import net.minecraft.util.math.BlockPos
-import net.minecraft.world.ExtendedBlockView
-import java.util.*
-import java.util.function.Supplier
-
-// net.minecraft.client.render.model.WeightedBakedModel.totalWeight
-val WeightedBakedModel_totalWeight = YarnHelper.requiredField<Int>("net.minecraft.class_1097", "field_5433", "I")
-// net.minecraft.client.render.model.WeightedBakedModel.models
-val WeightedBakedModel_models = YarnHelper.requiredField<List<WeightedPicker.Entry>>("net.minecraft.class_1097", "field_5434", "Ljava/util/List;")
-// net.minecraft.client.render.model.WeightedBakedModel.ModelEntry.model
-val WeightedBakedModelEntry_model = YarnHelper.requiredField<BakedModel>("net.minecraft.class_1097\$class_1099", "field_5437", "Lnet/minecraft/class_1087;")
-// net.minecraft.util.WeightedPicker.Entry.weight
-val WeightedPickerEntry_weight = YarnHelper.requiredField<Int>("net.minecraft.class_3549\$class_3550", "field_15774", "I")
-
-abstract class WrappedBakedModel(val wrapped: BakedModel) : BakedModel by wrapped, FabricBakedModel {
-    override fun isVanillaAdapter() = false
-
-    override fun emitItemQuads(stack: ItemStack, randomSupplier: Supplier<Random>, context: RenderContext) {
-        (wrapped as FabricBakedModel).emitItemQuads(stack, randomSupplier, context)
-    }
-
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        (wrapped as FabricBakedModel).emitBlockQuads(blockView, state, pos, randomSupplier, context)
-    }
-}
-
-class WrappedMeshModel(wrapped: BasicBakedModel, val mesh: Mesh) : WrappedBakedModel(wrapped) {
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        context.meshConsumer().accept(mesh)
-    }
-
-    companion object {
-        /**
-         * Converter for [BasicBakedModel] instances.
-         * @param state [BlockState] to use when querying [BakedModel]
-         * @param unshade undo vanilla diffuse lighting when unbaking the [BakedModel]
-         * @param noDiffuse disable diffuse lighting when baking the [Mesh]
-         * @param renderLayerOverride [BlockRenderLayer] to use instead of the one declared by the corresponding [Block]
-         */
-        fun converter(state: BlockState, unshade: Boolean = false, noDiffuse: Boolean = true, renderLayerOverride: BlockRenderLayer? = null) = BakedModelConverter.of { model, _ ->
-            if (model is BasicBakedModel) {
-                val mesh = unbakeQuads(model, state, Random(42L), unshade).build(
-                    layer = renderLayerOverride ?: state.block.renderLayer,
-                    noDiffuse = noDiffuse,
-                    flatLighting = !model.useAmbientOcclusion()
-                )
-                WrappedMeshModel(model, mesh)
-            } else null
-        }
-    }
-}
-
-class WrappedWeightedModel(wrapped: WeightedBakedModel, transformer: BakedModelConverter) : WrappedBakedModel(wrapped) {
-    val totalWeight = wrapped[WeightedBakedModel_totalWeight] as Int
-    val models = wrapped[WeightedBakedModel_models]!!.map { entry ->
-        Entry(transformer.convert(entry[WeightedBakedModelEntry_model]!!, transformer)!!, entry[WeightedPickerEntry_weight]!!)
-    }
-
-    override fun emitBlockQuads(blockView: ExtendedBlockView, state: BlockState, pos: BlockPos, randomSupplier: Supplier<Random>, context: RenderContext) {
-        (WeightedPicker.getRandom(randomSupplier.get(), models, totalWeight).model as FabricBakedModel).emitBlockQuads(blockView, state, pos, randomSupplier, context)
-    }
-
-    class Entry(val model: BakedModel, weight: Int) : WeightedPicker.Entry(weight)
-
-    companion object {
-        val converter = object : BakedModelConverter {
-            override fun convert(model: BakedModel, converter: BakedModelConverter) =
-                (model as? WeightedBakedModel)?.let { WrappedWeightedModel(it, converter) }
-        }
-    }
-}
-

src/main/kotlin/mods/betterfoliage/util/Caching.kt

@@ -17,6 +17,10 @@ interface Invalidator {
     }
 }
 
+class SimpleInvalidator : Invalidator {
+    override val callbacks = mutableListOf<WeakReference<() -> Unit>>()
+}
+
 class LazyInvalidatable<V>(invalidator: Invalidator, val valueFactory: ()->V): ReadOnlyProperty<Any, V> {
     init { invalidator.onInvalidate { value = null } }
 
@@ -31,7 +35,7 @@ class LazyInvalidatable<V>(invalidator: Invalidator, val valueFactory: ()->V): R
     }
 }
 
-class LazyMap<K, V>(val invalidator: Invalidator, val valueFactory: (K)->V) {
+open class LazyMapInvalidatable<K, V>(val invalidator: Invalidator, val valueFactory: (K)->V) {
     init { invalidator.onInvalidate { values.clear() } }
 
     val values = mutableMapOf<K, V>()
@@ -58,3 +62,6 @@ class LazyMap<K, V>(val invalidator: Invalidator, val valueFactory: (K)->V) {
         }
     }
 }
+
+fun <V> Invalidator.lazy(valueFactory: ()->V) = LazyInvalidatable(this, valueFactory)
+fun <K, V> Invalidator.lazyMap(valueFactory: (K)->V) = LazyMapInvalidatable(this, valueFactory)