correctly apply smooth shading multipliers for AO data

src/main/kotlin/mods/betterfoliage/client/render/RenderLeaves.kt

@@ -25,7 +25,7 @@ class RenderLeaves : AbstractBlockRenderingHandler(BetterFoliageMod.MOD_ID) {
 
     val leavesModel = model {
         verticalRectangle(x1 = -0.5, z1 = 0.5, x2 = 0.5, z2 = -0.5, yBottom = -0.5 * 1.41, yTop = 0.5 * 1.41)
-        .setAoShader(edgeOrientedAuto(corner = cornerAo(Axis.Y)))
+        .setAoShader(edgeOrientedAuto(corner = cornerAoMaxGreen))
         .setFlatShader(FlatOffset(Int3.zero))
         .scale(Config.leaves.size)
         .toCross(UP).addAll()

src/main/kotlin/mods/octarinecore/client/render/ModelRenderer.kt

@@ -71,8 +71,15 @@ open class ShadingContext {
     var aoEnabled = Minecraft.isAmbientOcclusionEnabled()
     val aoFaces = Array(6) { AoFaceData(forgeDirs[it]) }
 
+    val EnumFacing.aoMultiplier: Float get() = when(this) {
+        UP -> 1.0f
+        DOWN -> 0.5f
+        NORTH, SOUTH -> 0.8f
+        EAST, WEST -> 0.6f
+    }
+
     fun updateShading(offset: Int3, predicate: (EnumFacing) -> Boolean = { true }) {
-        forgeDirs.forEach { if (predicate(it)) aoFaces[it.ordinal].update(offset) }
+        forgeDirs.forEach { if (predicate(it)) aoFaces[it.ordinal].update(offset, multiplier = it.aoMultiplier) }
     }
 
     fun aoShading(face: EnumFacing, corner1: EnumFacing, corner2: EnumFacing) =

src/main/kotlin/mods/octarinecore/client/render/Shading.kt

@@ -57,14 +57,14 @@ class AoFaceData(val face: EnumFacing) {
         EAST -> listOf(topRight, topLeft, bottomLeft, bottomRight)
     }
 
-    fun update(offset: Int3, useBounds: Boolean = false) {
+    fun update(offset: Int3, useBounds: Boolean = false, multiplier: Float = 1.0f) {
         val ctx = blockContext
         val blockState = ctx.blockState(offset)
         val quadBounds: FloatArray = FloatArray(12)
         val flags = BitSet(3).apply { set(0) }
 
         ao.updateVertexBrightness(ctx.world, blockState.block, ctx.pos + offset, face, quadBounds, flags)
-        ordered.forEachIndexed { idx, aoData -> aoData.set(ao.vertexBrightness[idx], ao.vertexColorMultiplier[idx]) }
+        ordered.forEachIndexed { idx, aoData -> aoData.set(ao.vertexBrightness[idx], ao.vertexColorMultiplier[idx] * multiplier) }
     }
 
     operator fun get(dir1: EnumFacing, dir2: EnumFacing): AoData {