diff --git a/src/main/java/de/bixilon/minosoft/data/registries/blocks/state/BlockState.kt b/src/main/java/de/bixilon/minosoft/data/registries/blocks/state/BlockState.kt
index bb3faff9a..3c48b542c 100644
--- a/src/main/java/de/bixilon/minosoft/data/registries/blocks/state/BlockState.kt
+++ b/src/main/java/de/bixilon/minosoft/data/registries/blocks/state/BlockState.kt
@@ -20,10 +20,10 @@ import de.bixilon.minosoft.data.registries.identified.ResourceLocation
 import de.bixilon.minosoft.gui.rendering.models.block.state.render.BlockRender
 
 open class BlockState(
-    val block: Block,
+    @JvmField val block: Block,
     val luminance: Int,
 ) {
-    var model: BlockRender? = null
+    @JvmField var model: BlockRender? = null
 
     constructor(block: Block, settings: BlockStateSettings) : this(block, settings.luminance)
 
diff --git a/src/main/java/de/bixilon/minosoft/data/world/chunk/light/SectionLight.kt b/src/main/java/de/bixilon/minosoft/data/world/chunk/light/SectionLight.kt
index d700b35ad..9bc1c05bf 100644
--- a/src/main/java/de/bixilon/minosoft/data/world/chunk/light/SectionLight.kt
+++ b/src/main/java/de/bixilon/minosoft/data/world/chunk/light/SectionLight.kt
@@ -25,7 +25,7 @@ import de.bixilon.minosoft.protocol.protocol.ProtocolDefinition
 
 class SectionLight(
     val section: ChunkSection,
-    var light: ByteArray = ByteArray(ProtocolDefinition.BLOCKS_PER_SECTION), // packed (skyLight: 0xF0, blockLight: 0x0F)
+    @JvmField var light: ByteArray = ByteArray(ProtocolDefinition.BLOCKS_PER_SECTION), // packed (skyLight: 0xF0, blockLight: 0x0F)
 ) : AbstractSectionLight() {
 
     fun onBlockChange(x: Int, y: Int, z: Int, previous: BlockState?, state: BlockState?) {
diff --git a/src/main/java/de/bixilon/minosoft/gui/rendering/models/block/state/baked/cull/FaceCulling.kt b/src/main/java/de/bixilon/minosoft/gui/rendering/models/block/state/baked/cull/FaceCulling.kt
index e5e2b5b24..9b1bcf2fb 100644
--- a/src/main/java/de/bixilon/minosoft/gui/rendering/models/block/state/baked/cull/FaceCulling.kt
+++ b/src/main/java/de/bixilon/minosoft/gui/rendering/models/block/state/baked/cull/FaceCulling.kt
@@ -69,6 +69,16 @@ object FaceCulling {
         return area
     }
 
+    private inline fun minOf(a: Float, b: Float): Float {
+        if (a < b) return a
+        return b
+    }
+
+    private inline fun maxOf(a: Float, b: Float): Float {
+        if (a > b) return a
+        return b
+    }
+
     private fun FaceProperties.getSideArea(target: FaceProperties): Float {
         val start = start.array
         val targetStart = target.start.array