Only a few moves left

- flywheel stuff only barely depends on create
 - start drafting what multiple backends could look like

src/main/java/com/jozufozu/flywheel/backend/Backend.java

@@ -20,19 +20,17 @@ import org.lwjgl.opengl.GLCapabilities;
 
 import com.jozufozu.flywheel.backend.core.BasicProgram;
 import com.jozufozu.flywheel.backend.core.CrumblingRenderer;
-import com.jozufozu.flywheel.backend.core.EffectsContext;
 import com.jozufozu.flywheel.backend.core.WorldContext;
 import com.jozufozu.flywheel.backend.core.WorldTileRenderer;
-import com.jozufozu.flywheel.backend.effects.EffectsHandler;
 import com.jozufozu.flywheel.backend.gl.shader.GlProgram;
 import com.jozufozu.flywheel.backend.gl.shader.ProgramSpec;
 import com.jozufozu.flywheel.backend.gl.versioned.GlCompat;
 import com.jozufozu.flywheel.backend.instancing.IFlywheelWorld;
 import com.jozufozu.flywheel.backend.instancing.InstancedModel;
 import com.jozufozu.flywheel.backend.instancing.MaterialSpec;
+import com.jozufozu.flywheel.util.WorldAttached;
 import com.simibubi.create.content.contraptions.KineticDebugger;
 import com.simibubi.create.foundation.config.AllConfigs;
-import com.simibubi.create.foundation.utility.WorldAttached;
 
 import it.unimi.dsi.fastutil.longs.Long2ObjectMap;
 import net.minecraft.client.Minecraft;
@@ -65,7 +63,6 @@ public class Backend {
 	public static GLCapabilities capabilities;
 	public static GlCompat compat;
 
-	public static EffectsHandler effects;
 	public static WorldAttached<WorldTileRenderer<BasicProgram>> tileRenderer = new WorldAttached<>(() -> new WorldTileRenderer<>(WorldContext.INSTANCE));
 	public static LazyValue<Vector<CrumblingRenderer>> blockBreaking = new LazyValue<>(() -> {
 		Vector<CrumblingRenderer> renderers = new Vector<>(10);
@@ -86,7 +83,6 @@ public class Backend {
 	static {
 		register(WorldContext.INSTANCE);
 		register(WorldContext.CRUMBLING);
-		register(EffectsContext.INSTANCE);
 
 		listeners.refreshListener(world -> {
 			if (canUseInstancing() && world != null) {
@@ -191,11 +187,6 @@ public class Backend {
 				compat.instancedArraysSupported();
 
 		enabled = AllConfigs.CLIENT.experimentalRendering.get() && !OptifineHandler.usingShaders();
-
-		if (enabled) {
-			if (effects != null) effects.delete();
-			effects = new EffectsHandler();
-		}
 	}
 
 	public static void tick() {
@@ -211,7 +202,6 @@ public class Backend {
 	public static void renderLayer(ClientWorld world, RenderType layer, Matrix4f viewProjection, double cameraX, double cameraY, double cameraZ) {
 		if (!canUseInstancing(world)) return;
 		WorldTileRenderer<BasicProgram> renderer = tileRenderer.get(world);
-		if (renderer == null) return;
 
 		layer.startDrawing();
 

src/main/java/com/jozufozu/flywheel/backend/core/materials/ModelData.java

@@ -2,8 +2,8 @@ package com.jozufozu.flywheel.backend.core.materials;
 
 import java.nio.ByteBuffer;
 
-import com.jozufozu.flywheel.backend.RenderUtil;
 import com.jozufozu.flywheel.backend.instancing.InstancedModel;
+import com.jozufozu.flywheel.util.RenderUtil;
 import com.mojang.blaze3d.matrix.MatrixStack;
 
 public class ModelData extends BasicData {

src/main/java/com/jozufozu/flywheel/backend/gl/shader/GlProgram.java

@@ -17,9 +17,9 @@ import static org.lwjgl.opengl.GL20.glUseProgram;
 import java.util.Collection;
 
 import com.jozufozu.flywheel.backend.Backend;
-import com.jozufozu.flywheel.backend.RenderUtil;
 import com.jozufozu.flywheel.backend.gl.GlObject;
 import com.jozufozu.flywheel.backend.gl.attrib.IVertexAttrib;
+import com.jozufozu.flywheel.util.RenderUtil;
 
 import net.minecraft.util.ResourceLocation;
 import net.minecraft.util.math.vector.Matrix4f;

src/main/java/com/jozufozu/flywheel/backend/instancing/RenderMaterial.java

@@ -1,31 +1,42 @@
 package com.jozufozu.flywheel.backend.instancing;
 
+import java.util.Arrays;
+import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.function.Consumer;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
+import java.util.stream.Collectors;
 
 import org.apache.commons.lang3.tuple.Pair;
+import org.lwjgl.opengl.GL11;
 
 import com.google.common.cache.Cache;
 import com.google.common.cache.CacheBuilder;
 import com.jozufozu.flywheel.backend.Backend;
-import com.jozufozu.flywheel.backend.RenderUtil;
 import com.jozufozu.flywheel.backend.core.BasicProgram;
 import com.jozufozu.flywheel.backend.core.PartialModel;
 import com.jozufozu.flywheel.backend.gl.shader.ProgramSpec;
 import com.jozufozu.flywheel.backend.gl.shader.ShaderCallback;
+import com.jozufozu.flywheel.util.BakedQuadWrapper;
+import com.jozufozu.flywheel.util.RenderUtil;
+import com.jozufozu.flywheel.util.VirtualEmptyModelData;
 import com.mojang.blaze3d.matrix.MatrixStack;
-import com.simibubi.create.foundation.render.SuperByteBufferCache;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.client.Minecraft;
+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.model.BakedQuad;
 import net.minecraft.client.renderer.model.IBakedModel;
+import net.minecraft.client.renderer.texture.OverlayTexture;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
 import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraftforge.client.model.data.IModelData;
 
 public class RenderMaterial<P extends BasicProgram, MODEL extends InstancedModel<?>> {
 
@@ -120,9 +131,37 @@ public class RenderMaterial<P extends BasicProgram, MODEL extends InstancedModel
 	}
 
 	private MODEL buildModel(IBakedModel model, BlockState referenceState, MatrixStack ms) {
-		BufferBuilder builder = SuperByteBufferCache.getBufferBuilder(model, referenceState, ms);
+		BufferBuilder builder = getBufferBuilder(model, referenceState, ms);
 
 		return factory.makeModel(renderer, builder);
 	}
 
+	private static final Direction[] dirs;
+
+	static {
+		Direction[] directions = Direction.values();
+
+		dirs = Arrays.copyOf(directions, directions.length + 1);
+	}
+
+	public static BufferBuilder getBufferBuilder(IBakedModel model, BlockState referenceState, MatrixStack ms) {
+		Minecraft mc = Minecraft.getInstance();
+		BlockRendererDispatcher dispatcher = mc.getBlockRendererDispatcher();
+		BlockModelRenderer blockRenderer = dispatcher.getBlockModelRenderer();
+		BufferBuilder builder = new BufferBuilder(512);
+
+		BakedQuadWrapper quadReader = new BakedQuadWrapper();
+
+		IModelData modelData = model.getModelData(mc.world, BlockPos.ZERO.up(255), referenceState, VirtualEmptyModelData.INSTANCE);
+		List<BakedQuad> quads = Arrays.stream(dirs)
+				.flatMap(dir -> model.getQuads(referenceState, dir, mc.world.rand, modelData).stream())
+				.collect(Collectors.toList());
+
+		builder.begin(GL11.GL_QUADS, DefaultVertexFormats.BLOCK);
+		blockRenderer.renderModel(mc.world, model, referenceState, BlockPos.ZERO.up(255), ms, builder, true,
+				mc.world.rand, 42, OverlayTexture.DEFAULT_UV, VirtualEmptyModelData.INSTANCE);
+		builder.finishDrawing();
+		return builder;
+	}
+
 }

src/main/java/com/jozufozu/flywheel/backend/light/GridAlignedBB.java

@@ -1,8 +1,8 @@
 package com.jozufozu.flywheel.backend.light;
 
-import static com.jozufozu.flywheel.backend.RenderUtil.isPowerOf2;
+import static com.jozufozu.flywheel.util.RenderUtil.isPowerOf2;
 
-import com.jozufozu.flywheel.backend.RenderUtil;
+import com.jozufozu.flywheel.util.RenderUtil;
 
 import net.minecraft.util.Direction;
 import net.minecraft.util.math.AxisAlignedBB;

src/main/java/com/jozufozu/flywheel/backend/light/LightUpdater.java

@@ -3,7 +3,7 @@ package com.jozufozu.flywheel.backend.light;
 import java.util.WeakHashMap;
 import java.util.function.LongConsumer;
 
-import com.simibubi.create.foundation.utility.WeakHashSet;
+import com.jozufozu.flywheel.util.WeakHashSet;
 
 import it.unimi.dsi.fastutil.longs.Long2ObjectMap;
 import it.unimi.dsi.fastutil.longs.Long2ObjectOpenHashMap;

src/main/java/com/jozufozu/flywheel/util/BakedQuadWrapper.java

@@ -0,0 +1,216 @@
+package com.jozufozu.flywheel.util;
+
+import net.minecraft.client.renderer.model.BakedQuad;
+import net.minecraft.client.renderer.vertex.DefaultVertexFormats;
+import net.minecraft.client.renderer.vertex.VertexFormat;
+import net.minecraft.client.renderer.vertex.VertexFormatElement;
+import net.minecraft.util.math.vector.Vector2f;
+import net.minecraft.util.math.vector.Vector3f;
+
+public class BakedQuadWrapper {
+	private final FormatCache formatCache = new FormatCache();
+	private BakedQuad quad;
+	private int[] vertexData;
+
+	public BakedQuadWrapper() {
+	}
+
+	public BakedQuadWrapper(BakedQuad quad) {
+		this.quad = quad;
+		this.vertexData = quad.getVertexData();
+	}
+
+	public void setQuad(BakedQuad quad) {
+		this.quad = quad;
+		this.vertexData = this.quad.getVertexData();
+	}
+
+	public static BakedQuadWrapper of(BakedQuad quad) {
+		return new BakedQuadWrapper(quad);
+	}
+
+	public void refreshFormat() {
+		formatCache.refresh();
+	}
+
+	public BakedQuad getQuad() {
+		return quad;
+	}
+
+	public void clear() {
+		quad = null;
+		vertexData = null;
+	}
+
+	// Getters
+
+	public float getPosX(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.position]);
+	}
+
+	public float getPosY(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.position + 1]);
+	}
+
+	public float getPosZ(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.position + 2]);
+	}
+
+	public Vector3f getPos(int vertexIndex) {
+		return new Vector3f(getPosX(vertexIndex), getPosY(vertexIndex), getPosZ(vertexIndex));
+	}
+
+	public void copyPos(int vertexIndex, Vector3f pos) {
+		pos.set(getPosX(vertexIndex), getPosY(vertexIndex), getPosZ(vertexIndex));
+	}
+
+	public int getColor(int vertexIndex) {
+		return vertexData[vertexIndex * formatCache.vertexSize + formatCache.color];
+	}
+
+	public float getTexU(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.texture]);
+	}
+
+	public float getTexV(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.texture + 1]);
+	}
+
+	public Vector2f getTex(int vertexIndex) {
+		return new Vector2f(getTexU(vertexIndex), getTexV(vertexIndex));
+	}
+
+	public int getLight(int vertexIndex) {
+		return vertexData[vertexIndex * formatCache.vertexSize + formatCache.light];
+	}
+
+	public float getNormalX(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.normal]);
+	}
+
+	public float getNormalY(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.normal + 1]);
+	}
+
+	public float getNormalZ(int vertexIndex) {
+		return Float.intBitsToFloat(vertexData[vertexIndex * formatCache.vertexSize + formatCache.normal + 2]);
+	}
+
+	public Vector3f getNormal(int vertexIndex) {
+		return new Vector3f(getNormalX(vertexIndex), getNormalY(vertexIndex), getNormalZ(vertexIndex));
+	}
+
+	public void copyNormal(int vertexIndex, Vector3f normal) {
+		normal.set(getNormalX(vertexIndex), getNormalY(vertexIndex), getNormalZ(vertexIndex));
+	}
+
+	// Setters
+
+	public void setPosX(int vertexIndex, float x) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.position] = Float.floatToRawIntBits(x);
+	}
+
+	public void setPosY(int vertexIndex, float y) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.position + 1] = Float.floatToRawIntBits(y);
+	}
+
+	public void setPosZ(int vertexIndex, float z) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.position + 2] = Float.floatToRawIntBits(z);
+	}
+
+	public void setPos(int vertexIndex, float x, float y, float z) {
+		setPosX(vertexIndex, x);
+		setPosY(vertexIndex, y);
+		setPosZ(vertexIndex, z);
+	}
+
+	public void setPos(int vertexIndex, Vector3f pos) {
+		setPos(vertexIndex, pos.getX(), pos.getY(), pos.getZ());
+	}
+
+	public void setColor(int vertexIndex, int color) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.color] = color;
+	}
+
+	public void setTexU(int vertexIndex, float u) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.texture] = Float.floatToRawIntBits(u);
+	}
+
+	public void setTexV(int vertexIndex, float v) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.texture + 1] = Float.floatToRawIntBits(v);
+	}
+
+	public void setTex(int vertexIndex, float u, float v) {
+		setTexU(vertexIndex, u);
+		setTexV(vertexIndex, v);
+	}
+
+	public void setTex(int vertexIndex, Vector2f tex) {
+		setTex(vertexIndex, tex.x, tex.y);
+	}
+
+	public void setLight(int vertexIndex, int light) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.light] = light;
+	}
+
+	public void setNormalX(int vertexIndex, float normalX) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.normal] = Float.floatToRawIntBits(normalX);
+	}
+
+	public void setNormalY(int vertexIndex, float normalY) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.normal + 1] = Float.floatToRawIntBits(normalY);
+	}
+
+	public void setNormalZ(int vertexIndex, float normalZ) {
+		vertexData[vertexIndex * formatCache.vertexSize + formatCache.normal + 2] = Float.floatToRawIntBits(normalZ);
+	}
+
+	public void setNormal(int vertexIndex, float normalX, float normalY, float normalZ) {
+		setNormalX(vertexIndex, normalX);
+		setNormalY(vertexIndex, normalY);
+		setNormalZ(vertexIndex, normalZ);
+	}
+
+	public void setNormal(int vertexIndex, Vector3f normal) {
+		setNormal(vertexIndex, normal.getX(), normal.getY(), normal.getZ());
+	}
+
+	private static class FormatCache {
+		private static final VertexFormat FORMAT = DefaultVertexFormats.BLOCK;
+
+		public FormatCache() {
+			refresh();
+		}
+
+		// Integer size
+		public int vertexSize;
+
+		// Element integer offsets
+		public int position;
+		public int color;
+		public int texture;
+		public int light;
+		public int normal;
+
+		public void refresh() {
+			vertexSize = FORMAT.getIntegerSize();
+			for (int elementId = 0; elementId < FORMAT.getElements().size(); elementId++) {
+				VertexFormatElement element = FORMAT.getElements().get(elementId);
+				int intOffset = FORMAT.getOffset(elementId) / Integer.BYTES;
+				if (element.getUsage() == VertexFormatElement.Usage.POSITION) {
+					position = intOffset;
+				} else if (element.getUsage() == VertexFormatElement.Usage.COLOR) {
+					color = intOffset;
+				} else if (element.getUsage() == VertexFormatElement.Usage.UV) {
+					if (element.getIndex() == 0) {
+						texture = intOffset;
+					} else if (element.getIndex() == 2) {
+						light = intOffset;
+					}
+				} else if (element.getUsage() == VertexFormatElement.Usage.NORMAL) {
+					normal = intOffset;
+				}
+			}
+		}
+	}
+}

src/main/java/com/jozufozu/flywheel/util/RenderUtil.java

@@ -1,14 +1,14 @@
-package com.jozufozu.flywheel.backend;
+package com.jozufozu.flywheel.util;
 
 import java.util.function.Supplier;
 
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.simibubi.create.foundation.utility.AngleHelper;
-import com.simibubi.create.foundation.utility.MatrixStacker;
 
 import net.minecraft.util.Direction;
 import net.minecraft.util.math.vector.Matrix3f;
 import net.minecraft.util.math.vector.Matrix4f;
+import net.minecraft.util.math.vector.Vector3f;
 
 public class RenderUtil {
 	public static int nextPowerOf2(int a) {
@@ -88,11 +88,15 @@ public class RenderUtil {
 	public static Supplier<MatrixStack> rotateToFace(Direction facing) {
 		return () -> {
 			MatrixStack stack = new MatrixStack();
-			MatrixStacker.of(stack)
-					.centre()
-					.rotateY(AngleHelper.horizontalAngle(facing))
-					.rotateX(AngleHelper.verticalAngle(facing))
-					.unCentre();
+//			MatrixStacker.of(stack)
+//					.centre()
+//					.rotateY(AngleHelper.horizontalAngle(facing))
+//					.rotateX(AngleHelper.verticalAngle(facing))
+//					.unCentre();
+			stack.peek().getModel().setTranslation(0.5f, 0.5f, 0.5f);
+			stack.multiply(Vector3f.POSITIVE_Y.getDegreesQuaternion(AngleHelper.horizontalAngle(facing)));
+			stack.multiply(Vector3f.POSITIVE_X.getDegreesQuaternion(AngleHelper.verticalAngle(facing)));
+			stack.translate(-0.5f, -0.5f, -0.5f);
 			return stack;
 		};
 	}

src/main/java/com/jozufozu/flywheel/util/VirtualEmptyModelData.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.foundation.utility;
+package com.jozufozu.flywheel.util;
 
 import net.minecraftforge.client.model.data.IModelData;
 import net.minecraftforge.client.model.data.ModelProperty;

src/main/java/com/jozufozu/flywheel/util/WeakHashSet.java

@@ -1,4 +1,4 @@
-package com.simibubi.create.foundation.utility;
+package com.jozufozu.flywheel.util;
 
 import java.util.AbstractSet;
 import java.util.Collection;

src/main/java/com/jozufozu/flywheel/util/WorldAttached.java

@@ -0,0 +1,41 @@
+package com.jozufozu.flywheel.util;
+
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Consumer;
+
+import javax.annotation.Nonnull;
+
+import net.minecraft.world.IWorld;
+import net.minecraftforge.common.util.NonNullSupplier;
+
+public class WorldAttached<T> {
+
+	Map<IWorld, T> attached;
+	private final NonNullSupplier<T> factory;
+
+	public WorldAttached(NonNullSupplier<T> factory) {
+		this.factory = factory;
+		attached = new HashMap<>();
+	}
+
+	@Nonnull
+	public T get(IWorld world) {
+		T t = attached.get(world);
+		if (t != null)
+			return t;
+		T entry = factory.get();
+		put(world, entry);
+		return entry;
+	}
+
+	public void put(IWorld world, T entry) {
+		attached.put(world, entry);
+	}
+
+	public void forEach(Consumer<T> consumer) {
+		attached.values()
+				.forEach(consumer);
+	}
+
+}

src/main/java/com/simibubi/create/CreateClient.java

@@ -28,6 +28,7 @@ import com.simibubi.create.foundation.ponder.content.PonderIndex;
 import com.simibubi.create.foundation.ponder.elements.WorldSectionElement;
 import com.simibubi.create.foundation.render.AllMaterialSpecs;
 import com.simibubi.create.foundation.render.AllProgramSpecs;
+import com.simibubi.create.foundation.render.CreateFlywheelHandler;
 import com.simibubi.create.foundation.render.SuperByteBufferCache;
 import com.simibubi.create.foundation.utility.ghost.GhostBlocks;
 import com.simibubi.create.foundation.utility.outliner.Outliner;
@@ -81,7 +82,7 @@ public class CreateClient {
 		modEventBus.addListener(AllParticleTypes::registerFactories);
 
 		Backend.init();
-		ContraptionRenderDispatcher.init();
+		CreateFlywheelHandler.init();
 		OptifineHandler.init();
 	}
 

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/Contraption.java

@@ -26,7 +26,6 @@ import org.apache.commons.lang3.tuple.MutablePair;
 import org.apache.commons.lang3.tuple.Pair;
 
 import com.jozufozu.flywheel.backend.instancing.IFlywheelWorld;
-import com.jozufozu.flywheel.backend.light.EmptyLighter;
 import com.jozufozu.flywheel.backend.light.GridAlignedBB;
 import com.simibubi.create.AllBlocks;
 import com.simibubi.create.AllMovementBehaviours;
@@ -50,6 +49,7 @@ import com.simibubi.create.content.contraptions.components.structureMovement.pul
 import com.simibubi.create.content.contraptions.components.structureMovement.pulley.PulleyBlock.MagnetBlock;
 import com.simibubi.create.content.contraptions.components.structureMovement.pulley.PulleyBlock.RopeBlock;
 import com.simibubi.create.content.contraptions.components.structureMovement.pulley.PulleyTileEntity;
+import com.simibubi.create.content.contraptions.components.structureMovement.render.EmptyLighter;
 import com.simibubi.create.content.contraptions.fluids.tank.FluidTankTileEntity;
 import com.simibubi.create.content.contraptions.relays.advanced.GantryShaftBlock;
 import com.simibubi.create.content.contraptions.relays.belt.BeltBlock;

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/ControlledContraptionEntity.java

@@ -132,7 +132,7 @@ public class ControlledContraptionEntity extends AbstractContraptionEntity {
 	protected void tickContraption() {
 		prevAngle = angle;
 		tickActors();
-		
+
 		if (controllerPos == null)
 			return;
 		if (!world.isBlockPresent(controllerPos))

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/DirectionalExtenderScrollOptionSlot.java

@@ -30,4 +30,4 @@ public class DirectionalExtenderScrollOptionSlot extends CenteredSideValueBoxTra
 			MatrixStacker.of(ms).rotateY(AngleHelper.horizontalAngle(state.get(BlockStateProperties.FACING)) - 90);
 		super.rotate(state, ms);
 	}
-}
+}

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/render/ContraptionContext.java

@@ -1,8 +1,8 @@
-package com.jozufozu.flywheel.backend.core;
+package com.simibubi.create.content.contraptions.components.structureMovement.render;
 
 import com.jozufozu.flywheel.backend.ShaderLoader;
+import com.jozufozu.flywheel.backend.core.WorldContext;
 import com.jozufozu.flywheel.backend.gl.shader.FogSensitiveProgram;
-import com.simibubi.create.content.contraptions.components.structureMovement.render.ContraptionProgram;
 import com.simibubi.create.foundation.render.AllProgramSpecs;
 
 import net.minecraft.util.ResourceLocation;

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/render/ContraptionKineticRenderer.java

@@ -7,7 +7,6 @@ import javax.annotation.Nullable;
 
 import org.apache.commons.lang3.tuple.Pair;
 
-import com.jozufozu.flywheel.backend.core.ContraptionContext;
 import com.jozufozu.flywheel.backend.instancing.InstancedModel;
 import com.jozufozu.flywheel.backend.instancing.InstancedTileRenderer;
 import com.jozufozu.flywheel.backend.instancing.RenderMaterial;

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/render/ContraptionRenderDispatcher.java

@@ -9,7 +9,6 @@ import org.lwjgl.opengl.GL13;
 import org.lwjgl.opengl.GL40;
 
 import com.jozufozu.flywheel.backend.Backend;
-import com.jozufozu.flywheel.backend.core.ContraptionContext;
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.simibubi.create.AllMovementBehaviours;
 import com.simibubi.create.CreateClient;
@@ -57,13 +56,6 @@ public class ContraptionRenderDispatcher {
 	public static final Compartment<Pair<Contraption, Integer>> CONTRAPTION = new Compartment<>();
 	protected static PlacementSimulationWorld renderWorld;
 
-	public static void init() {
-		Backend.register(ContraptionContext.INSTANCE);
-		Backend.listeners.renderLayerListener(ContraptionRenderDispatcher::renderLayer);
-		Backend.listeners.setupFrameListener(ContraptionRenderDispatcher::beginFrame);
-		Backend.listeners.refreshListener($ -> ContraptionRenderDispatcher.invalidateAll());
-	}
-
 	public static void tick() {
 		if (Minecraft.getInstance().isGamePaused()) return;
 

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/render/EmptyLighter.java

@@ -1,5 +1,6 @@
-package com.jozufozu.flywheel.backend.light;
+package com.simibubi.create.content.contraptions.components.structureMovement.render;
 
+import com.jozufozu.flywheel.backend.light.GridAlignedBB;
 import com.simibubi.create.content.contraptions.components.structureMovement.Contraption;
 import com.simibubi.create.content.contraptions.components.structureMovement.ContraptionLighter;
 

src/main/java/com/simibubi/create/content/contraptions/components/structureMovement/render/LightVolumeDebugger.java

@@ -1,9 +1,9 @@
-package com.jozufozu.flywheel.backend.light;
+package com.simibubi.create.content.contraptions.components.structureMovement.render;
 
 import java.util.ArrayList;
 
+import com.jozufozu.flywheel.backend.light.GridAlignedBB;
 import com.mojang.blaze3d.matrix.MatrixStack;
-import com.simibubi.create.content.contraptions.components.structureMovement.render.ContraptionRenderDispatcher;
 import com.simibubi.create.foundation.renderState.SuperRenderTypeBuffer;
 import com.simibubi.create.foundation.utility.AnimationTickHolder;
 import com.simibubi.create.foundation.utility.Pair;

src/main/java/com/simibubi/create/content/contraptions/processing/BasinRenderer.java

@@ -86,9 +86,9 @@ public class BasinRenderer extends SmartTileEntityRenderer<BasinTileEntity> {
 
 			for (int i = 0; i <= stack.getCount() / 8; i++) {
 				ms.push();
-				
+
 				Vector3d vec = VecHelper.offsetRandomly(Vector3d.ZERO, r, 1 / 16f);
-				
+
 				ms.translate(vec.x, vec.y, vec.z);
 				renderItem(ms, buffer, light, overlay, stack);
 				ms.pop();
@@ -114,13 +114,13 @@ public class BasinRenderer extends SmartTileEntityRenderer<BasinTileEntity> {
 			.getBlockState(basin.getPos()
 				.offset(direction))
 			.getBlock() instanceof BasinBlock;
-		
+
 		for (IntAttached<ItemStack> intAttached : basin.visualizedOutputItems) {
 			float progress = 1 - (intAttached.getFirst() - partialTicks) / BasinTileEntity.OUTPUT_ANIMATION_TIME;
-			
+
 			if (!outToBasin && progress > .35f)
 				continue;
-			
+
 			ms.push();
 			MatrixStacker.of(ms)
 				.translate(outVec)

src/main/java/com/simibubi/create/content/contraptions/relays/elementary/BracketedKineticBlockModel.java

@@ -4,8 +4,8 @@ import java.util.ArrayList;
 import java.util.List;
 import java.util.Random;
 
+import com.jozufozu.flywheel.util.VirtualEmptyModelData;
 import com.simibubi.create.foundation.tileEntity.TileEntityBehaviour;
-import com.simibubi.create.foundation.utility.VirtualEmptyModelData;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.client.Minecraft;

src/main/java/com/simibubi/create/content/curiosities/projector/ChromaticProjectorInstance.java

@@ -1,9 +1,9 @@
 package com.simibubi.create.content.curiosities.projector;
 
-import com.jozufozu.flywheel.backend.Backend;
 import com.jozufozu.flywheel.backend.instancing.IDynamicInstance;
 import com.jozufozu.flywheel.backend.instancing.InstancedTileRenderer;
 import com.jozufozu.flywheel.backend.instancing.TileEntityInstance;
+import com.simibubi.create.foundation.render.effects.EffectsHandler;
 
 public class ChromaticProjectorInstance extends TileEntityInstance<ChromaticProjectorTileEntity> implements IDynamicInstance {
 
@@ -13,7 +13,7 @@ public class ChromaticProjectorInstance extends TileEntityInstance<ChromaticProj
 
 	@Override
 	public void beginFrame() {
-		Backend.effects.addSphere(tile.getFilter());
+		EffectsHandler.getInstance().addSphere(tile.getFilter());
 	}
 
 	@Override

src/main/java/com/simibubi/create/content/curiosities/projector/ChromaticProjectorTileEntity.java

@@ -2,8 +2,8 @@ package com.simibubi.create.content.curiosities.projector;
 
 import java.util.Vector;
 
-import com.jozufozu.flywheel.backend.effects.FilterSphere;
 import com.jozufozu.flywheel.backend.instancing.IInstanceRendered;
+import com.simibubi.create.foundation.render.effects.FilterSphere;
 import com.simibubi.create.foundation.tileEntity.SyncedTileEntity;
 
 import net.minecraft.block.BlockState;

src/main/java/com/simibubi/create/content/curiosities/projector/ColorEffect.java

@@ -6,8 +6,8 @@ import java.util.List;
 import java.util.function.Function;
 import java.util.function.Supplier;
 
-import com.jozufozu.flywheel.backend.effects.ColorMatrices;
 import com.simibubi.create.foundation.gui.AllGuiTextures;
+import com.simibubi.create.foundation.render.effects.ColorMatrices;
 import com.simibubi.create.foundation.tileEntity.behaviour.scrollvalue.ScrollValueBehaviour;
 import com.simibubi.create.foundation.utility.Lang;
 

src/main/java/com/simibubi/create/content/curiosities/projector/FilterStep.java

@@ -3,7 +3,7 @@ package com.simibubi.create.content.curiosities.projector;
 import java.util.Iterator;
 import java.util.Vector;
 
-import com.jozufozu.flywheel.backend.effects.ColorMatrices;
+import com.simibubi.create.foundation.render.effects.ColorMatrices;
 
 import net.minecraft.nbt.CompoundNBT;
 import net.minecraft.nbt.ListNBT;

src/main/java/com/simibubi/create/content/schematics/client/SchematicTransformation.java

@@ -213,7 +213,7 @@ public class SchematicTransformation {
 		z.start(pos.getZ());
 		moveTo(pos);
 	}
-	
+
 	public void moveTo(BlockPos pos) {
 		moveTo(pos.getX(), pos.getY(), pos.getZ());
 	}

src/main/java/com/simibubi/create/foundation/gui/GuiGameElement.java

@@ -3,6 +3,7 @@ package com.simibubi.create.foundation.gui;
 import javax.annotation.Nullable;
 
 import com.jozufozu.flywheel.backend.core.PartialModel;
+import com.jozufozu.flywheel.util.VirtualEmptyModelData;
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.platform.GlStateManager;
 import com.mojang.blaze3d.platform.GlStateManager.DestFactor;
@@ -12,7 +13,6 @@ import com.mojang.blaze3d.vertex.IVertexBuilder;
 import com.simibubi.create.foundation.fluid.FluidRenderer;
 import com.simibubi.create.foundation.utility.ColorHelper;
 import com.simibubi.create.foundation.utility.VecHelper;
-import com.simibubi.create.foundation.utility.VirtualEmptyModelData;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.block.Blocks;

src/main/java/com/simibubi/create/foundation/mixin/RenderHooksMixin.java

@@ -11,6 +11,7 @@ import com.jozufozu.flywheel.backend.Backend;
 import com.jozufozu.flywheel.backend.OptifineHandler;
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.platform.GlStateManager;
+import com.simibubi.create.foundation.render.effects.EffectsHandler;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.client.renderer.ActiveRenderInfo;
@@ -100,7 +101,9 @@ public class RenderHooksMixin {
 
 	@Inject(method = "render", at = @At(value = "INVOKE", target = "Lnet/minecraft/client/renderer/WorldRenderer;renderChunkDebugInfo(Lnet/minecraft/client/renderer/ActiveRenderInfo;)V"))
 	private void applyFilters(MatrixStack stack, float p_228426_2_, long p_228426_3_, boolean p_228426_5_, ActiveRenderInfo p_228426_6_, GameRenderer p_228426_7_, LightTexture p_228426_8_, Matrix4f p_228426_9_, CallbackInfo ci) {
-		Backend.effects.render(stack.peek().getModel());
+		EffectsHandler instance = EffectsHandler.getInstance();
+		if (instance != null)
+			instance.render(stack.peek().getModel());
 	}
 
 	// Instancing

src/main/java/com/simibubi/create/foundation/mixin/StoreProjectionMatrixMixin.java

@@ -10,8 +10,8 @@ import org.spongepowered.asm.mixin.injection.callback.CallbackInfo;
 import org.spongepowered.asm.mixin.injection.callback.CallbackInfoReturnable;
 
 import com.jozufozu.flywheel.backend.Backend;
-import com.jozufozu.flywheel.backend.effects.EffectsHandler;
 import com.mojang.blaze3d.matrix.MatrixStack;
+import com.simibubi.create.foundation.render.effects.EffectsHandler;
 
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.renderer.ActiveRenderInfo;

src/main/java/com/simibubi/create/foundation/ponder/PonderScene.java

@@ -524,4 +524,4 @@ public class PonderScene {
 		this.finished = finished;
 	}
 
-}
+}

src/main/java/com/simibubi/create/foundation/ponder/elements/WorldSectionElement.java

@@ -261,7 +261,7 @@ public class WorldSectionElement extends AnimatedSceneElement {
 				((ITickableTileEntity) te).tick();
 		});
 	}
-	
+
 	@Override
 	public void whileSkipping(PonderScene scene) {
 		if (redraw)

src/main/java/com/simibubi/create/foundation/render/CreateFlywheelHandler.java

@@ -0,0 +1,16 @@
+package com.simibubi.create.foundation.render;
+
+import com.jozufozu.flywheel.backend.Backend;
+import com.simibubi.create.content.contraptions.components.structureMovement.render.ContraptionContext;
+import com.simibubi.create.content.contraptions.components.structureMovement.render.ContraptionRenderDispatcher;
+import com.simibubi.create.foundation.render.effects.EffectsContext;
+
+public class CreateFlywheelHandler {
+	public static void init() {
+		Backend.register(ContraptionContext.INSTANCE);
+		Backend.register(EffectsContext.INSTANCE);
+		Backend.listeners.renderLayerListener(ContraptionRenderDispatcher::renderLayer);
+		Backend.listeners.setupFrameListener(ContraptionRenderDispatcher::beginFrame);
+		Backend.listeners.refreshListener($ -> ContraptionRenderDispatcher.invalidateAll());
+	}
+}

src/main/java/com/simibubi/create/foundation/render/SuperByteBufferCache.java

@@ -12,8 +12,8 @@ import org.lwjgl.opengl.GL11;
 import com.google.common.cache.Cache;
 import com.google.common.cache.CacheBuilder;
 import com.jozufozu.flywheel.backend.core.PartialModel;
+import com.jozufozu.flywheel.util.VirtualEmptyModelData;
 import com.mojang.blaze3d.matrix.MatrixStack;
-import com.simibubi.create.foundation.utility.VirtualEmptyModelData;
 
 import net.minecraft.block.BlockState;
 import net.minecraft.client.Minecraft;

src/main/java/com/simibubi/create/foundation/render/TemplateBuffer.java

@@ -13,15 +13,19 @@ public class TemplateBuffer {
 	protected int formatSize;
 	protected int vertexCount;
 
+	public TemplateBuffer() {
+
+	}
+
 	public TemplateBuffer(BufferBuilder buf) {
 		Pair<BufferBuilder.DrawState, ByteBuffer> state = buf.popData();
 		ByteBuffer rendered = state.getSecond();
 		rendered.order(ByteOrder.nativeOrder()); // Vanilla bug, endianness does not carry over into sliced buffers
 
 		formatSize = buf.getVertexFormat()
-			.getSize();
+				.getSize();
 		vertexCount = state.getFirst()
-			.getCount();
+				.getCount();
 		int size = vertexCount * formatSize;
 
 		template = ByteBuffer.allocate(size);

src/main/java/com/simibubi/create/foundation/render/effects/ColorMatrices.java

@@ -1,4 +1,4 @@
-package com.jozufozu.flywheel.backend.effects;
+package com.simibubi.create.foundation.render.effects;
 
 import com.simibubi.create.foundation.utility.AngleHelper;
 

src/main/java/com/simibubi/create/foundation/render/effects/EffectsContext.java

@@ -1,8 +1,7 @@
-package com.jozufozu.flywheel.backend.core;
+package com.simibubi.create.foundation.render.effects;
 
 import com.jozufozu.flywheel.backend.ShaderContext;
 import com.jozufozu.flywheel.backend.ShaderLoader;
-import com.jozufozu.flywheel.backend.effects.SphereFilterProgram;
 import com.jozufozu.flywheel.backend.gl.shader.ShaderSpecLoader;
 import com.jozufozu.flywheel.backend.gl.shader.SingleProgram;
 import com.simibubi.create.foundation.render.AllProgramSpecs;

src/main/java/com/simibubi/create/foundation/render/effects/EffectsHandler.java

@@ -1,18 +1,19 @@
-package com.jozufozu.flywheel.backend.effects;
+package com.simibubi.create.foundation.render.effects;
 
 import java.util.ArrayList;
 
+import javax.annotation.Nullable;
+
 import org.lwjgl.opengl.GL11;
 import org.lwjgl.opengl.GL15;
 import org.lwjgl.opengl.GL20;
 import org.lwjgl.opengl.GL30;
 
 import com.jozufozu.flywheel.backend.Backend;
-import com.jozufozu.flywheel.backend.RenderUtil;
-import com.jozufozu.flywheel.backend.core.EffectsContext;
 import com.jozufozu.flywheel.backend.gl.GlBuffer;
 import com.jozufozu.flywheel.backend.gl.GlPrimitiveType;
 import com.jozufozu.flywheel.backend.gl.GlVertexArray;
+import com.jozufozu.flywheel.util.RenderUtil;
 import com.simibubi.create.foundation.render.AllProgramSpecs;
 import com.simibubi.create.foundation.utility.AnimationTickHolder;
 
@@ -27,6 +28,22 @@ import net.minecraft.util.math.vector.Vector3d;
 
 public class EffectsHandler {
 
+	private static EffectsHandler instance;
+
+	@Nullable
+	public static EffectsHandler getInstance() {
+		if (Backend.available() && instance == null) {
+			instance = new EffectsHandler();
+		}
+
+		if (!Backend.available() && instance != null) {
+			instance.delete();
+			instance = null;
+		}
+
+		return instance;
+	}
+
 	public static float getNearPlane() {
 		return 0.05f;
 	}

src/main/java/com/simibubi/create/foundation/render/effects/FilterSphere.java

@@ -1,8 +1,8 @@
-package com.jozufozu.flywheel.backend.effects;
+package com.simibubi.create.foundation.render.effects;
 
 import java.nio.FloatBuffer;
 
-import com.jozufozu.flywheel.backend.RenderUtil;
+import com.jozufozu.flywheel.util.RenderUtil;
 
 import net.minecraft.util.math.vector.Matrix4f;
 

src/main/java/com/simibubi/create/foundation/render/effects/ScreenQuadAttributes.java

@@ -1,4 +1,4 @@
-package com.jozufozu.flywheel.backend.effects;
+package com.simibubi.create.foundation.render.effects;
 
 import com.jozufozu.flywheel.backend.gl.attrib.CommonAttributes;
 import com.jozufozu.flywheel.backend.gl.attrib.IAttribSpec;

src/main/java/com/simibubi/create/foundation/render/effects/SphereFilterProgram.java

@@ -1,4 +1,4 @@
-package com.jozufozu.flywheel.backend.effects;
+package com.simibubi.create.foundation.render.effects;
 
 import java.nio.FloatBuffer;
 import java.util.ArrayList;

src/main/java/com/simibubi/create/foundation/utility/WorldAttached.java

@@ -4,7 +4,6 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
-import java.util.function.Consumer;
 import java.util.function.Supplier;
 
 import javax.annotation.Nullable;
@@ -41,9 +40,4 @@ public class WorldAttached<T> {
 		attached.put(world, entry);
 	}
 
-	public void forEach(Consumer<T> consumer) {
-		attached.values()
-			.forEach(consumer);
-	}
-
 }

src/main/java/com/simibubi/create/foundation/utility/ghost/GhostBlockRenderer.java

@@ -10,10 +10,10 @@ import javax.annotation.Nullable;
 
 import org.lwjgl.system.MemoryStack;
 
+import com.jozufozu.flywheel.util.VirtualEmptyModelData;
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.mojang.blaze3d.vertex.IVertexBuilder;
 import com.simibubi.create.foundation.renderState.SuperRenderTypeBuffer;
-import com.simibubi.create.foundation.utility.VirtualEmptyModelData;
 import com.simibubi.create.foundation.utility.placement.PlacementHelpers;
 
 import net.minecraft.block.BlockState;

src/main/java/com/simibubi/create/foundation/utility/outliner/Outline.java

@@ -51,7 +51,7 @@ public abstract class Outline {
 		float lineWidth = params.getLineWidth();
 		if (lineWidth == 0)
 			return;
-		
+
 		IVertexBuilder builder = buffer.getBuffer(RenderTypes.getOutlineSolid());
 
 		Vector3d diff = end.subtract(start);

src/main/resources/assets/create/flywheel/shaders/skeleton/instanced/instanced.vert

@@ -0,0 +1,17 @@
+#version 110
+#FLWPrefixFields(FLWVertexData, attribute __a_)
+#FLWPrefixFields(FLWInstanceData, attribute __a_)
+
+#FLWPrefixFields(FLWOut, varying __v2f_)
+
+void main() {
+    FLWVertexData v;
+    #FLWAssignToFields(FLWVertexData, v, a_)
+
+    FLWInstanceData i;
+    #FLWAssignToFields(FLWInstanceData, i, a_)
+
+    FLWOut o = FLWMain(v, i);
+
+    #FLWAssignFromFields(FLWOut, o, v2f_)
+}

src/main/resources/assets/create/flywheel/shaders/skeleton/meshlet/meshlet.glsl

@@ -0,0 +1,43 @@
+#version 450
+#extension GL_NV_mesh_shader : require
+
+layout(local_size_x=32) in;
+
+layout(max_vertices=64, max_primitives=32) out;
+
+layout (std430, binding = 1) buffer _vertices {
+    FLWVertexData vertices[];
+} vb;
+
+struct s_meshlet {
+    uint vertices[64];
+    uint indices[96];
+    uint vertex_count;
+    uint index_count;
+};
+
+layout (std430, binding = 2) buffer _meshlets {
+    s_meshlet meshlets[];
+} mbuf;
+
+layout (location = 0) out PerVertexData {
+    vec4 color;
+} v_out[];// [max_vertices]
+
+void main() {
+    uint mi = gl_WorkGroupID.x;
+    uint thread_id = gl_LocalInvocationID.x;
+
+    uint primIdx = thread_id * 3;
+    uint vertStartIdx = thread_id * 2;
+
+    gl_MeshVerticesNV[vertStartIdx + 0].gl_Position;
+    gl_MeshVerticesNV[vertStartIdx + 1].gl_Position;
+
+    gl_PrimitiveIndicesNV[primIdx + 0] = mbuf.meshlets[mi].indices[primIdx + 0];
+    gl_PrimitiveIndicesNV[primIdx + 1] = mbuf.meshlets[mi].indices[primIdx + 1];
+    gl_PrimitiveIndicesNV[primIdx + 2] = mbuf.meshlets[mi].indices[primIdx + 2];
+
+    gl_PrimitiveCountNV = mbuf.meshlets[mi].vertex_count / 2;
+
+}