Instanced pulleys first pass

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

@@ -16,10 +16,10 @@ import com.simibubi.create.content.contraptions.fluids.FluidTransportBehaviour.A
 import com.simibubi.create.content.contraptions.processing.burner.BlazeBurnerBlock.HeatLevel;
 import com.simibubi.create.content.contraptions.relays.belt.BeltData;
 import com.simibubi.create.foundation.render.SuperByteBuffer;
-import com.simibubi.create.foundation.render.backend.MaterialTypes;
+import com.simibubi.create.foundation.render.backend.MaterialType;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedTileRenderer;
-import com.simibubi.create.foundation.render.backend.core.ModelData;
+import com.simibubi.create.foundation.render.backend.instancing.RenderMaterial;
 import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.Iterate;
 import com.simibubi.create.foundation.utility.Lang;
@@ -237,20 +237,7 @@ public class AllBlockPartials {
 		return CreateClient.bufferCache.renderDirectionalPartial(this, referenceState, facing, ms);
 	}
 
-	public InstancedModel<RotatingData> renderOnRotating(InstancedTileRenderer<?> ctx, BlockState referenceState) {
-		return ctx.getMaterial(KineticRenderMaterials.ROTATING).getModel(this, referenceState);
-	}
-
-	public InstancedModel<BeltData> renderOnBelt(InstancedTileRenderer<?> ctx, BlockState referenceState) {
-		return ctx.getMaterial(KineticRenderMaterials.BELTS).getModel(this, referenceState);
-	}
-
-	public InstancedModel<RotatingData> renderOnDirectionalSouthRotating(InstancedTileRenderer<?> dispatcher, BlockState referenceState) {
-		Direction facing = referenceState.get(FACING);
-		return renderOnDirectionalSouthRotating(dispatcher, referenceState, facing);
-	}
-
-	public InstancedModel<RotatingData> renderOnDirectionalSouthRotating(InstancedTileRenderer<?> dispatcher, BlockState referenceState, Direction facing) {
+	public <M extends InstancedModel<?>> M getModel(RenderMaterial<?, M> mat, BlockState referenceState, Direction facing) {
 		Supplier<MatrixStack> ms = () -> {
 			MatrixStack stack = new MatrixStack();
 			MatrixStacker.of(stack)
@@ -260,25 +247,7 @@ public class AllBlockPartials {
 						 .unCentre();
 			return stack;
 		};
-		return dispatcher.getMaterial(KineticRenderMaterials.ROTATING).getModel(this, referenceState, facing, ms);
-	}
-
-	public InstancedModel<ModelData> renderOnHorizontalModel(InstancedTileRenderer<?> dispatcher, BlockState referenceState) {
-		Direction facing = referenceState.get(HORIZONTAL_FACING);
-		return renderOnDirectionalSouthModel(dispatcher, referenceState, facing);
-	}
-
-	public InstancedModel<ModelData> renderOnDirectionalSouthModel(InstancedTileRenderer<?> dispatcher, BlockState referenceState, Direction facing) {
-		Supplier<MatrixStack> ms = () -> {
-			MatrixStack stack = new MatrixStack();
-			MatrixStacker.of(stack)
-						 .centre()
-						 .rotateY(AngleHelper.horizontalAngle(facing))
-						 .rotateX(AngleHelper.verticalAngle(facing))
-						 .unCentre();
-			return stack;
-		};
-		return dispatcher.getMaterial(MaterialTypes.TRANSFORMED).getModel(this, referenceState, facing, ms);
+		return mat.getModel(this, referenceState, facing, ms);
 	}
 
 }

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

@@ -61,6 +61,7 @@ import com.simibubi.create.content.contraptions.components.structureMovement.gan
 import com.simibubi.create.content.contraptions.components.structureMovement.mounted.CartAssemblerTileEntity;
 import com.simibubi.create.content.contraptions.components.structureMovement.piston.MechanicalPistonRenderer;
 import com.simibubi.create.content.contraptions.components.structureMovement.piston.MechanicalPistonTileEntity;
+import com.simibubi.create.content.contraptions.components.structureMovement.pulley.PulleyInstance;
 import com.simibubi.create.content.contraptions.components.structureMovement.pulley.PulleyRenderer;
 import com.simibubi.create.content.contraptions.components.structureMovement.pulley.PulleyTileEntity;
 import com.simibubi.create.content.contraptions.components.turntable.TurntableTileEntity;
@@ -398,7 +399,7 @@ public class AllTileEntities {
 
 	public static final TileEntityEntry<PulleyTileEntity> ROPE_PULLEY = Create.registrate()
 		.tileEntity("rope_pulley", PulleyTileEntity::new)
-		.instance(() -> ShaftInstance::new)
+		.instance(() -> PulleyInstance::new)
 		.validBlocks(AllBlocks.ROPE_PULLEY)
 		.renderer(() -> PulleyRenderer::new)
 		.register();

src/main/java/com/simibubi/create/content/contraptions/base/HalfShaftInstance.java

@@ -15,7 +15,7 @@ public class HalfShaftInstance extends SingleRotatingInstance {
     @Override
     protected InstancedModel<RotatingData> getModel() {
         Direction dir = getShaftDirection();
-        return AllBlockPartials.SHAFT_HALF.renderOnDirectionalSouthRotating(renderer, blockState, dir);
+        return AllBlockPartials.SHAFT_HALF.getModel(getRotatingMaterial(), blockState, dir);
     }
 
     protected Direction getShaftDirection() {

src/main/java/com/simibubi/create/content/contraptions/base/ShaftlessCogInstance.java

@@ -12,6 +12,6 @@ public class ShaftlessCogInstance extends SingleRotatingInstance {
 
     @Override
     protected InstancedModel<RotatingData> getModel() {
-        return AllBlockPartials.SHAFTLESS_COGWHEEL.renderOnRotating(renderer, tile.getBlockState());
+		return renderer.getMaterial(KineticRenderMaterials.ROTATING).getModel(AllBlockPartials.SHAFTLESS_COGWHEEL, tile.getBlockState());
 	}
 }

src/main/java/com/simibubi/create/content/contraptions/components/actors/DrillInstance.java

@@ -1,11 +1,16 @@
 package com.simibubi.create.content.contraptions.components.actors;
 
+import net.minecraft.block.BlockState;
+
 import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileEntity;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.content.contraptions.base.SingleRotatingInstance;
 import com.simibubi.create.foundation.render.backend.instancing.*;
 
+import static net.minecraft.state.properties.BlockStateProperties.FACING;
+
 public class DrillInstance extends SingleRotatingInstance {
 
     public DrillInstance(InstancedTileRenderer<?> modelManager, KineticTileEntity tile) {
@@ -14,6 +19,7 @@ public class DrillInstance extends SingleRotatingInstance {
 
     @Override
     protected InstancedModel<RotatingData> getModel() {
-        return AllBlockPartials.DRILL_HEAD.renderOnDirectionalSouthRotating(renderer, tile.getBlockState());
+		BlockState referenceState = tile.getBlockState();
+		return AllBlockPartials.DRILL_HEAD.getModel(getRotatingMaterial(), referenceState, referenceState.get(FACING));
 	}
 }

src/main/java/com/simibubi/create/content/contraptions/components/crank/HandCrankInstance.java

@@ -3,6 +3,7 @@ package com.simibubi.create.content.contraptions.components.crank;
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.simibubi.create.AllBlockPartials;
 import com.simibubi.create.content.contraptions.base.SingleRotatingInstance;
+import com.simibubi.create.foundation.render.backend.MaterialTypes;
 import com.simibubi.create.foundation.render.backend.instancing.*;
 import com.simibubi.create.foundation.render.backend.core.ModelData;
 import com.simibubi.create.foundation.utility.AnimationTickHolder;
@@ -29,7 +30,7 @@ public class HandCrankInstance extends SingleRotatingInstance implements IDynami
             return;
 
         facing = blockState.get(BlockStateProperties.FACING);
-        InstancedModel<ModelData> model = renderedHandle.renderOnDirectionalSouthModel(modelManager, blockState, facing.getOpposite());
+		InstancedModel<ModelData> model = renderedHandle.getModel(getTransformMaterial(), blockState, facing.getOpposite());
         crank = model.createInstance();
 
         rotateCrank();

src/main/java/com/simibubi/create/content/contraptions/components/fan/FanInstance.java

@@ -3,6 +3,7 @@ package com.simibubi.create.content.contraptions.components.fan;
 import static net.minecraft.state.properties.BlockStateProperties.FACING;
 
 import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileInstance;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedTileRenderer;
@@ -16,14 +17,16 @@ public class FanInstance extends KineticTileInstance<EncasedFanTileEntity> {
     protected final RotatingData shaft;
     protected final RotatingData fan;
     final Direction direction;
+    private final Direction opposite;
 
     public FanInstance(InstancedTileRenderer<?> modelManager, EncasedFanTileEntity tile) {
         super(modelManager, tile);
 
         direction = blockState.get(FACING);
 
-        shaft = AllBlockPartials.SHAFT_HALF.renderOnDirectionalSouthRotating(modelManager, blockState, direction.getOpposite()).createInstance();
-        fan = AllBlockPartials.ENCASED_FAN_INNER.renderOnDirectionalSouthRotating(modelManager, blockState, direction.getOpposite()).createInstance();
+        opposite = direction.getOpposite();
+        shaft = AllBlockPartials.SHAFT_HALF.getModel(getRotatingMaterial(), blockState, opposite).createInstance();
+        fan = AllBlockPartials.ENCASED_FAN_INNER.getModel(getRotatingMaterial(), blockState, opposite).createInstance();
 
         setup(shaft);
         setup(fan, getFanSpeed());
@@ -46,7 +49,7 @@ public class FanInstance extends KineticTileInstance<EncasedFanTileEntity> {
 
     @Override
     public void updateLight() {
-        BlockPos behind = pos.offset(direction.getOpposite());
+        BlockPos behind = pos.offset(opposite);
         relight(behind, shaft);
 
         BlockPos inFront = pos.offset(direction);

src/main/java/com/simibubi/create/content/contraptions/components/flywheel/FlyWheelInstance.java

@@ -6,19 +6,25 @@ import java.util.List;
 import com.google.common.collect.Lists;
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileInstance;
 import com.simibubi.create.content.contraptions.base.RotatingData;
+import com.simibubi.create.foundation.render.backend.MaterialTypes;
 import com.simibubi.create.foundation.render.backend.instancing.*;
 
 import com.simibubi.create.foundation.render.backend.core.ModelData;
 import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.AnimationTickHolder;
 import com.simibubi.create.foundation.utility.MatrixStacker;
+
+import net.minecraft.block.BlockState;
 import net.minecraft.state.properties.BlockStateProperties;
 import net.minecraft.util.Direction;
 import net.minecraft.util.Rotation;
 import net.minecraft.util.math.MathHelper;
 
+import static net.minecraft.state.properties.BlockStateProperties.HORIZONTAL_FACING;
+
 public class FlyWheelInstance extends KineticTileInstance<FlywheelTileEntity> implements IDynamicInstance {
 
     protected final Direction facing;
@@ -42,11 +48,12 @@ public class FlyWheelInstance extends KineticTileInstance<FlywheelTileEntity> im
     public FlyWheelInstance(InstancedTileRenderer<?> modelManager, FlywheelTileEntity tile) {
         super(modelManager, tile);
 
-        facing = blockState.get(BlockStateProperties.HORIZONTAL_FACING);
+        facing = blockState.get(HORIZONTAL_FACING);
 
         shaft = setup(shaftModel().createInstance());
 
-        wheel = AllBlockPartials.FLYWHEEL.renderOnHorizontalModel(modelManager, blockState.rotate(Rotation.CLOCKWISE_90)).createInstance();
+        BlockState referenceState = blockState.rotate(Rotation.CLOCKWISE_90);
+        wheel = AllBlockPartials.FLYWHEEL.getModel(getTransformMaterial(), referenceState, referenceState.get(HORIZONTAL_FACING)).createInstance();
 
         connection = FlywheelBlock.getConnection(blockState);
         if (connection != null) {
@@ -152,7 +159,7 @@ public class FlyWheelInstance extends KineticTileInstance<FlywheelTileEntity> im
     }
 
     protected InstancedModel<RotatingData> shaftModel() {
-        return AllBlockPartials.SHAFT_HALF.renderOnDirectionalSouthRotating(renderer, blockState, facing.getOpposite());
+        return AllBlockPartials.SHAFT_HALF.getModel(getRotatingMaterial(), blockState, facing.getOpposite());
     }
 
     protected void transformConnector(MatrixStacker ms, boolean upper, boolean rotating, float angle, boolean flip) {

src/main/java/com/simibubi/create/content/contraptions/components/millstone/MillStoneCogInstance.java

@@ -1,6 +1,7 @@
 package com.simibubi.create.content.contraptions.components.millstone;
 
 import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileEntity;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.content.contraptions.base.SingleRotatingInstance;
@@ -15,6 +16,6 @@ public class MillStoneCogInstance extends SingleRotatingInstance {
 
     @Override
     protected InstancedModel<RotatingData> getModel() {
-        return AllBlockPartials.MILLSTONE_COG.renderOnRotating(renderer, tile.getBlockState());
+        return getRotatingMaterial().getModel(AllBlockPartials.MILLSTONE_COG, tile.getBlockState());
     }
 }

src/main/java/com/simibubi/create/content/contraptions/components/saw/SawInstance.java

@@ -3,12 +3,14 @@ package com.simibubi.create.content.contraptions.components.saw;
 import static net.minecraft.state.properties.BlockStateProperties.FACING;
 
 import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileEntity;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.content.contraptions.base.SingleRotatingInstance;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedTileRenderer;
 
+import net.minecraft.block.BlockState;
 import net.minecraft.util.Rotation;
 
 public class SawInstance extends SingleRotatingInstance {
@@ -19,9 +21,11 @@ public class SawInstance extends SingleRotatingInstance {
 
     @Override
     protected InstancedModel<RotatingData> getModel() {
-        if (blockState.get(FACING).getAxis().isHorizontal())
-            return AllBlockPartials.SHAFT_HALF.renderOnDirectionalSouthRotating(renderer, blockState.rotate(tile.getWorld(), tile.getPos(), Rotation.CLOCKWISE_180));
-        else
+        if (blockState.get(FACING).getAxis().isHorizontal()) {
+			BlockState referenceState = blockState.rotate(tile.getWorld(), tile.getPos(), Rotation.CLOCKWISE_180);
+			return AllBlockPartials.SHAFT_HALF.getModel(getRotatingMaterial(), referenceState, referenceState.get(FACING));
+		} else {
 			return getRotatingMaterial().getModel(shaft());
 		}
+    }
 }

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

@@ -7,6 +7,7 @@ import com.simibubi.create.content.contraptions.base.IRotate;
 import com.simibubi.create.content.contraptions.base.KineticTileEntity;
 import com.simibubi.create.content.contraptions.base.KineticTileEntityRenderer;
 import com.simibubi.create.foundation.render.SuperByteBuffer;
+import com.simibubi.create.foundation.render.backend.FastRenderDispatcher;
 import com.simibubi.create.foundation.utility.AngleHelper;
 
 import net.minecraft.block.BlockState;
@@ -41,6 +42,9 @@ public abstract class AbstractPulleyRenderer extends KineticTileEntityRenderer {
 	@Override
 	protected void renderSafe(KineticTileEntity te, float partialTicks, MatrixStack ms, IRenderTypeBuffer buffer,
 		int light, int overlay) {
+
+		if (FastRenderDispatcher.available(te.getWorld())) return;
+
 		super.renderSafe(te, partialTicks, ms, buffer, light, overlay);
 		float offset = getOffset(te, partialTicks);
 		boolean running = isRunning(te);

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

@@ -0,0 +1,209 @@
+package com.simibubi.create.content.contraptions.components.structureMovement.pulley;
+
+import net.minecraft.client.renderer.Vector3f;
+import net.minecraft.util.Direction;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.MathHelper;
+import net.minecraft.world.ILightReader;
+import net.minecraft.world.LightType;
+
+import java.util.Arrays;
+import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.AllBlocks;
+import com.simibubi.create.content.contraptions.relays.encased.ShaftInstance;
+import com.simibubi.create.foundation.render.backend.core.OrientedData;
+import com.simibubi.create.foundation.render.backend.instancing.*;
+import com.simibubi.create.foundation.render.backend.instancing.util.ConditionalInstance;
+import com.simibubi.create.foundation.render.backend.instancing.util.InstanceGroup;
+import com.simibubi.create.foundation.render.backend.instancing.util.SelectInstance;
+import com.simibubi.create.foundation.render.backend.light.GridAlignedBB;
+import com.simibubi.create.foundation.render.backend.light.LightUpdateListener;
+import com.simibubi.create.foundation.render.backend.light.LightUpdater;
+import com.simibubi.create.foundation.utility.AnimationTickHolder;
+
+public class PulleyInstance extends ShaftInstance implements IDynamicInstance, LightUpdateListener {
+
+	final PulleyTileEntity tile = (PulleyTileEntity) super.tile;
+	final OrientedData coil;
+	final SelectInstance<OrientedData> magnet;
+	final InstanceGroup<OrientedData> rope;
+	final ConditionalInstance<OrientedData> halfRope;
+
+	private float offset;
+	private final Direction rotatingAbout;
+	private final Vector3f rotationAxis;
+
+	private byte[] bLight = new byte[1];
+	private byte[] sLight = new byte[1];
+	private GridAlignedBB volume;
+
+	public PulleyInstance(InstancedTileRenderer<?> dispatcher, PulleyTileEntity tile) {
+		super(dispatcher, tile);
+
+		rotatingAbout = Direction.getFacingFromAxis(Direction.AxisDirection.POSITIVE, axis);
+		rotationAxis = rotatingAbout.getUnitVector();
+		updateOffset();
+
+		coil = getCoilModel()
+				.createInstance()
+				.setPosition(getInstancePosition());
+
+		magnet = new SelectInstance<>(this::getMagnetModelIndex);
+		magnet.addModel(getMagnetModel())
+				.addModel(getHalfMagnetModel());
+
+		rope = new InstanceGroup<>(getRopeModel());
+		resizeRope();
+
+		halfRope = new ConditionalInstance<>(getHalfRopeModel(), this::shouldRenderHalfRope);
+
+		beginFrame();
+	}
+
+	@Override
+	public void beginFrame() {
+		updateOffset();
+
+		coil.setRotation(rotationAxis.getDegreesQuaternion(offset * 180));
+		magnet.update().get().ifPresent(data ->
+				data.setPosition(getInstancePosition())
+						.nudge(0, -offset, 0)
+						.setBlockLight(bLight[bLight.length - 1])
+						.setSkyLight(sLight[sLight.length - 1])
+		);
+
+		halfRope.check().get().ifPresent(rope -> {
+			float f = offset % 1;
+			float halfRopeNudge = f > .75f ? f - 1 : f;
+
+			rope.setPosition(getInstancePosition())
+					.nudge(0, -halfRopeNudge, 0)
+					.setBlockLight(bLight[0])
+					.setSkyLight(sLight[0]);
+		});
+
+		if (isRunning()) {
+			resizeRope();
+			int size = rope.size();
+			for (int i = 0; i < size; i++) {
+				rope.get(i)
+						.setPosition(getInstancePosition())
+						.nudge(0, -offset + i + 1, 0)
+						.setBlockLight(bLight[size - i])
+						.setSkyLight(sLight[size - i]);
+			}
+		} else {
+			rope.clear();
+		}
+	}
+
+	@Override
+	public void updateLight() {
+		super.updateLight();
+		relight(pos, coil);
+	}
+
+	@Override
+	public void remove() {
+		super.remove();
+		coil.delete();
+		magnet.delete();
+		rope.clear();
+		halfRope.delete();
+	}
+
+	protected InstancedModel<OrientedData> getRopeModel() {
+		return getOrientedMaterial().getModel(AllBlocks.ROPE.getDefaultState());
+	}
+
+	protected InstancedModel<OrientedData> getMagnetModel() {
+		return getOrientedMaterial().getModel(AllBlocks.PULLEY_MAGNET.getDefaultState());
+	}
+
+	protected InstancedModel<OrientedData> getHalfMagnetModel() {
+		return getOrientedMaterial().getModel(AllBlockPartials.ROPE_HALF_MAGNET, blockState);
+	}
+
+	protected InstancedModel<OrientedData> getCoilModel() {
+		return AllBlockPartials.ROPE_COIL.getModel(getOrientedMaterial(), blockState, rotatingAbout);
+	}
+
+	protected InstancedModel<OrientedData> getHalfRopeModel() {
+		return getOrientedMaterial().getModel(AllBlockPartials.ROPE_HALF, blockState);
+	}
+
+	protected float getOffset() {
+		float partialTicks = AnimationTickHolder.getPartialTicks();
+		return PulleyRenderer.getTileOffset(partialTicks, tile);
+	}
+
+	protected boolean isRunning() {
+		return tile.running || tile.isVirtual();
+	}
+
+	protected void resizeRope() {
+		if (rope.resize(getNeededRopeCount())) {
+
+			int length = MathHelper.ceil(offset);
+			volume = GridAlignedBB.from(pos.down(length), pos);
+			volume.fixMinMax();
+
+			bLight = Arrays.copyOf(bLight, length + 1);
+			sLight = Arrays.copyOf(sLight, length + 1);
+
+			initLight(world, volume);
+
+			LightUpdater.getInstance().startListening(volume, this);
+		}
+	}
+
+	private void updateOffset() {
+		offset = getOffset();
+	}
+
+	private int getNeededRopeCount() {
+		return Math.max(0, MathHelper.ceil(offset - 1.25f));
+	}
+
+	private boolean shouldRenderHalfRope() {
+		float f = offset % 1;
+		return offset > .75f && (f < .25f || f > .75f);
+	}
+
+	private int getMagnetModelIndex() {
+		if (isRunning() || offset == 0) {
+			return  offset > .25f ? 0 : 1;
+		} else {
+			return -1;
+		}
+	}
+
+	@Override
+	public boolean decreaseFramerateWithDistance() {
+		return false;
+	}
+
+	@Override
+	public boolean onLightUpdate(ILightReader world, LightType type, GridAlignedBB changed) {
+		changed.intersectAssign(volume);
+
+		initLight(world, changed);
+
+		return false;
+	}
+
+	private void initLight(ILightReader world, GridAlignedBB changed) {
+		int top = this.pos.getY();
+		BlockPos.Mutable pos = new BlockPos.Mutable();
+		changed.forEachContained((x, y, z) -> {
+			pos.setPos(x, y, z);
+			byte block = (byte) world.getLightLevel(LightType.BLOCK, pos);
+			byte sky = (byte) world.getLightLevel(LightType.SKY, pos);
+
+			int i = top - y;
+
+			bLight[i] = block;
+			sLight[i] = sky;
+		});
+	}
+}

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

@@ -41,16 +41,7 @@ public class PulleyRenderer extends AbstractPulleyRenderer {
 	@Override
 	protected float getOffset(KineticTileEntity te, float partialTicks) {
 		PulleyTileEntity pulley = (PulleyTileEntity) te;
-		float offset = pulley.getInterpolatedOffset(partialTicks);
-
-		if (pulley.movedContraption != null) {
-			AbstractContraptionEntity e = pulley.movedContraption;
-			PulleyContraption c = (PulleyContraption) pulley.movedContraption.getContraption();
-			double entityPos = MathHelper.lerp(partialTicks, e.lastTickPosY, e.getY());
-			offset = (float) -(entityPos - c.anchor.getY() - c.initialOffset);
-		}
-
-		return offset;
+		return getTileOffset(partialTicks, pulley);
 	}
 
 	@Override
@@ -58,4 +49,17 @@ public class PulleyRenderer extends AbstractPulleyRenderer {
 		return ((PulleyTileEntity) te).running || te.isVirtual();
 	}
 
+
+	static float getTileOffset(float partialTicks, PulleyTileEntity tile) {
+		float offset = tile.getInterpolatedOffset(partialTicks);
+
+		if (tile.movedContraption != null) {
+			AbstractContraptionEntity e = tile.movedContraption;
+			PulleyContraption c = (PulleyContraption) tile.movedContraption.getContraption();
+			double entityPos = MathHelper.lerp(partialTicks, e.lastTickPosY, e.getY());
+			offset = (float) -(entityPos - c.anchor.getY() - c.initialOffset);
+		}
+
+		return offset;
+	}
 }

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

@@ -241,6 +241,6 @@ public class PulleyTileEntity extends LinearActuatorTileEntity {
 
 	@Override
 	public boolean shouldRenderAsTE() {
-		return true;
+		return false;
 	}
 }

src/main/java/com/simibubi/create/content/contraptions/fluids/PumpCogInstance.java

@@ -1,12 +1,17 @@
 package com.simibubi.create.content.contraptions.fluids;
 
+import net.minecraft.block.BlockState;
+
 import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileEntity;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.content.contraptions.base.SingleRotatingInstance;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedTileRenderer;
 
+import static net.minecraft.state.properties.BlockStateProperties.FACING;
+
 public class PumpCogInstance extends SingleRotatingInstance {
 
     public PumpCogInstance(InstancedTileRenderer<?> modelManager, KineticTileEntity tile) {
@@ -15,6 +20,7 @@ public class PumpCogInstance extends SingleRotatingInstance {
 
     @Override
     protected InstancedModel<RotatingData> getModel() {
-        return AllBlockPartials.MECHANICAL_PUMP_COG.renderOnDirectionalSouthRotating(renderer, tile.getBlockState());
+        BlockState referenceState = tile.getBlockState();
+        return AllBlockPartials.MECHANICAL_PUMP_COG.getModel(getRotatingMaterial(), referenceState, referenceState.get(FACING));
     }
 }

src/main/java/com/simibubi/create/content/contraptions/relays/belt/BeltInstance.java

@@ -6,6 +6,7 @@ import java.util.function.Supplier;
 import com.mojang.blaze3d.matrix.MatrixStack;
 import com.simibubi.create.AllBlockPartials;
 import com.simibubi.create.AllBlocks;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileInstance;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.foundation.block.render.SpriteShiftEntry;
@@ -59,7 +60,7 @@ public class BeltInstance extends KineticTileInstance<BeltTileEntity> {
             AllBlockPartials beltPartial = BeltRenderer.getBeltPartial(diagonal, start, end, bottom);
             SpriteShiftEntry spriteShift = BeltRenderer.getSpriteShiftEntry(color, diagonal, bottom);
 
-            InstancedModel<BeltData> beltModel = beltPartial.renderOnBelt(modelManager, blockState);
+            InstancedModel<BeltData> beltModel = modelManager.getMaterial(KineticRenderMaterials.BELTS).getModel(beltPartial, blockState);
 
             keys.add(setup(beltModel.createInstance(), bottom, spriteShift));
 

src/main/java/com/simibubi/create/content/contraptions/relays/encased/SplitShaftInstance.java

@@ -4,11 +4,13 @@ import java.util.ArrayList;
 
 import com.simibubi.create.AllBlockPartials;
 import com.simibubi.create.content.contraptions.base.IRotate;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileInstance;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.foundation.render.backend.instancing.InstanceData;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedTileRenderer;
+import com.simibubi.create.foundation.render.backend.instancing.RenderMaterial;
 import com.simibubi.create.foundation.utility.Iterate;
 
 import net.minecraft.block.Block;
@@ -25,9 +27,11 @@ public class SplitShaftInstance extends KineticTileInstance<SplitShaftTileEntity
 
         float speed = tile.getSpeed();
 
+        RenderMaterial<?, InstancedModel<RotatingData>> rotatingMaterial = getRotatingMaterial();
+
         for (Direction dir : Iterate.directionsInAxis(getRotationAxis())) {
 
-            InstancedModel<RotatingData> half = AllBlockPartials.SHAFT_HALF.renderOnDirectionalSouthRotating(modelManager, blockState, dir);
+            InstancedModel<RotatingData> half = AllBlockPartials.SHAFT_HALF.getModel(rotatingMaterial, blockState, dir);
 
             float splitSpeed = speed * tile.getRotationSpeedModifier(dir);
 

src/main/java/com/simibubi/create/content/contraptions/relays/gearbox/GearboxInstance.java

@@ -4,11 +4,13 @@ import java.util.EnumMap;
 import java.util.Map;
 
 import com.simibubi.create.AllBlockPartials;
+import com.simibubi.create.content.contraptions.base.KineticRenderMaterials;
 import com.simibubi.create.content.contraptions.base.KineticTileInstance;
 import com.simibubi.create.content.contraptions.base.RotatingData;
 import com.simibubi.create.foundation.render.backend.instancing.InstanceData;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedTileRenderer;
+import com.simibubi.create.foundation.render.backend.instancing.RenderMaterial;
 import com.simibubi.create.foundation.utility.Iterate;
 
 import net.minecraft.state.properties.BlockStateProperties;
@@ -32,12 +34,14 @@ public class GearboxInstance extends KineticTileInstance<GearboxTileEntity> {
         int skyLight = world.getLightLevel(LightType.SKY, pos);
         updateSourceFacing();
 
+        RenderMaterial<?, InstancedModel<RotatingData>> rotatingMaterial = getRotatingMaterial();
+
         for (Direction direction : Iterate.directions) {
             final Direction.Axis axis = direction.getAxis();
             if (boxAxis == axis)
                 continue;
 
-            InstancedModel<RotatingData> shaft = AllBlockPartials.SHAFT_HALF.renderOnDirectionalSouthRotating(modelManager, blockState, direction);
+            InstancedModel<RotatingData> shaft = AllBlockPartials.SHAFT_HALF.getModel(rotatingMaterial, blockState, direction);
 
             RotatingData key = shaft.createInstance();
 

src/main/java/com/simibubi/create/content/logistics/block/mechanicalArm/ArmInstance.java

@@ -170,7 +170,7 @@ public class ArmInstance extends SingleRotatingInstance implements IDynamicInsta
 
 	@Override
 	protected InstancedModel<RotatingData> getModel() {
-		return AllBlockPartials.ARM_COG.renderOnRotating(renderer, tile.getBlockState());
+		return getRotatingMaterial().getModel(AllBlockPartials.ARM_COG, tile.getBlockState());
 	}
 
 	@Override

src/main/java/com/simibubi/create/foundation/OptionalUtil.java

@@ -0,0 +1,24 @@
+package com.simibubi.create.foundation;
+
+import java.util.Optional;
+import java.util.function.Supplier;
+
+public class OptionalUtil {
+
+	public static <T> Optional<T> thenTry(Optional<T> first, Optional<T> thenTry) {
+		if (first.isPresent()) {
+			return first;
+		} else {
+			return thenTry;
+		}
+	}
+
+	public static <T> Optional<T> thenTryLazy(Supplier<Optional<T>> first, Supplier<Optional<T>> thenTry) {
+		Optional<T> one = first.get();
+		if (one.isPresent()) {
+			return one;
+		} else {
+			return thenTry.get();
+		}
+	}
+}

src/main/java/com/simibubi/create/foundation/render/backend/instancing/RenderMaterial.java

@@ -85,13 +85,7 @@ public class RenderMaterial<P extends BasicProgram, MODEL extends InstancedModel
     }
 
     protected void makeRenderCalls() {
-        for (Cache<Object, MODEL> cache : models.values()) {
-            for (MODEL model : cache.asMap().values()) {
-                if (!model.isEmpty()) {
-                    model.render();
-                }
-            }
-        }
+        runOnAll(InstancedModel::render);
     }
 
     public void runOnAll(Consumer<MODEL> f) {

src/main/java/com/simibubi/create/foundation/render/backend/instancing/util/ConditionalInstance.java

@@ -0,0 +1,52 @@
+package com.simibubi.create.foundation.render.backend.instancing.util;
+
+import java.util.Optional;
+import javax.annotation.Nullable;
+import com.simibubi.create.foundation.render.backend.instancing.InstanceData;
+import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
+
+public class ConditionalInstance<D extends InstanceData> {
+
+	final InstancedModel<D> model;
+	Condition condition;
+
+	@Nullable
+	private D instance;
+
+	public ConditionalInstance(InstancedModel<D> model, Condition condition) {
+		this.model = model;
+		this.condition = condition;
+
+		check();
+	}
+
+	public ConditionalInstance<D> setCondition(Condition condition) {
+		this.condition = condition;
+		return this;
+	}
+
+	public ConditionalInstance<D> check() {
+		boolean shouldShow = condition.shouldShow();
+		if (shouldShow && instance == null) {
+			instance = model.createInstance();
+		} else if (!shouldShow && instance != null) {
+			instance.delete();
+			instance = null;
+		}
+
+		return this;
+	}
+
+	public Optional<D> get() {
+		return Optional.ofNullable(instance);
+	}
+
+	public void delete() {
+		if (instance != null) instance.delete();
+	}
+
+	@FunctionalInterface
+	public interface Condition {
+		boolean shouldShow();
+	}
+}

src/main/java/com/simibubi/create/foundation/render/backend/instancing/util/InstanceGroup.java

@@ -0,0 +1,83 @@
+package com.simibubi.create.foundation.render.backend.instancing.util;
+
+import net.minecraft.util.NonNullList;
+
+import java.util.*;
+import com.simibubi.create.foundation.render.backend.instancing.InstanceData;
+import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
+
+public class InstanceGroup<D extends InstanceData> extends AbstractCollection<D>  {
+
+	final InstancedModel<D> model;
+	final List<D> backing;
+
+	public InstanceGroup(InstancedModel<D> model) {
+		this.model = model;
+
+		this.backing = new ArrayList<>();
+	}
+
+	public InstanceGroup(InstancedModel<D> model, int size) {
+		this.model = model;
+
+		this.backing = new ArrayList<>(size);
+
+		for (int i = 0; i < size; i++) {
+			addInstance();
+		}
+	}
+
+	/**
+	 *
+	 * @param count
+	 * @return True if the number of elements changed.
+	 */
+	public boolean resize(int count) {
+		int size = size();
+		if (count == size) return false;
+
+		if (count <= 0) {
+			clear();
+			return size > 0;
+		}
+
+		if (count > size) {
+			for (int i = size; i < count; i++) {
+				addInstance();
+			}
+		} else {
+			List<D> unnecessary = backing.subList(count, size);
+			unnecessary.forEach(InstanceData::delete);
+			unnecessary.clear();
+		}
+
+		return true;
+	}
+
+	public InstanceData addInstance() {
+		D instance = model.createInstance();
+		backing.add(instance);
+
+		return instance;
+	}
+
+	public D get(int index) {
+		return backing.get(index);
+	}
+
+	@Override
+	public Iterator<D> iterator() {
+		return backing.iterator();
+	}
+
+	@Override
+	public int size() {
+		return backing.size();
+	}
+
+	@Override
+	public void clear() {
+		backing.forEach(InstanceData::delete);
+		backing.clear();
+	}
+}

src/main/java/com/simibubi/create/foundation/render/backend/instancing/util/SelectInstance.java

@@ -0,0 +1,59 @@
+package com.simibubi.create.foundation.render.backend.instancing.util;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+import javax.annotation.Nullable;
+import com.simibubi.create.foundation.render.backend.instancing.InstanceData;
+import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
+
+public class SelectInstance<D extends InstanceData> {
+
+	final List<InstancedModel<D>> models;
+
+	ModelSelector selector;
+
+	private int last = -1;
+	@Nullable
+	private D current;
+
+	public SelectInstance(ModelSelector selector) {
+		this.models = new ArrayList<>();
+		this.selector = selector;
+	}
+
+	public SelectInstance<D> addModel(InstancedModel<D> model) {
+		models.add(model);
+		return this;
+	}
+
+	public SelectInstance<D> update() {
+		int i = selector.modelIndexToShow();
+
+		if (i < 0 || i >= models.size()) {
+			if (current != null) {
+				current.delete();
+				current = null;
+			}
+		} else if (i != last) {
+			if (current != null) current.delete();
+
+			current = models.get(i).createInstance();
+		}
+
+		last = i;
+		return this;
+	}
+
+	public Optional<D> get() {
+		return Optional.ofNullable(current);
+	}
+
+	public void delete() {
+		if (current != null) current.delete();
+	}
+
+	public interface ModelSelector {
+		int modelIndexToShow();
+	}
+}