fix #1 finally

start work on shader abstraction
use backend for ebos
fix some issues with ghost instances, more work to be done

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

@@ -471,6 +471,19 @@ public abstract class KineticTileEntity extends SmartTileEntity
 		return 16384.0D; // TODO: make this a config option
 	}
 
+	@Override
+	public void onLoad() {
+		super.onLoad();
+		if (world != null && world.isRemote)
+			CreateClient.kineticRenderer.add(this);
+	}
+
+	@Override
+	public void onChunkUnloaded() {
+		if (world != null && world.isRemote)
+			CreateClient.kineticRenderer.remove(this);
+	}
+
 	@Override
 	public void requestModelDataUpdate() {
 		super.requestModelDataUpdate();

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

@@ -478,6 +478,11 @@ public class BeltTileEntity extends KineticTileEntity {
 		updateLight();
 	}
 
+	@Override
+	public boolean shouldRenderAsTE() {
+		return isController();
+	}
+
 	private void updateLight() {
 		skyLight = (byte) world.getLightLevel(LightType.SKY, pos);
 		blockLight = (byte) world.getLightLevel(LightType.BLOCK, pos);

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

@@ -1,5 +1,6 @@
 package com.simibubi.create.foundation.mixin;
 
+import com.simibubi.create.CreateClient;
 import com.simibubi.create.foundation.render.FastRenderDispatcher;
 import net.minecraft.tileentity.TileEntity;
 import net.minecraft.util.math.BlockPos;
@@ -27,6 +28,6 @@ public class OnRemoveTileMixin {
      */
     @Inject(at = @At(value = "INVOKE_ASSIGN", target = "Lnet/minecraft/world/World;getTileEntity(Lnet/minecraft/util/math/BlockPos;)Lnet/minecraft/tileentity/TileEntity;"), method = "removeTileEntity", locals = LocalCapture.CAPTURE_FAILHARD)
     private void onRemoveTile(BlockPos pos, CallbackInfo ci, TileEntity te) {
-        if (isRemote) FastRenderDispatcher.enqueueRemove(te);
+        if (isRemote) CreateClient.kineticRenderer.remove(te);
     }
 }

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

@@ -35,8 +35,7 @@ import java.util.function.Consumer;
 public class FastRenderDispatcher {
 
     public static WorldAttached<ConcurrentHashMap.KeySetView<TileEntity, Boolean>> queuedUpdates = new WorldAttached<>(ConcurrentHashMap::newKeySet);
-    public static WorldAttached<ConcurrentHashMap.KeySetView<TileEntity, Boolean>> queuedRemovals = new WorldAttached<>(ConcurrentHashMap::newKeySet);
+    public static WorldAttached<ConcurrentHashMap.KeySetView<TileEntity, Boolean>> addedLastTick = new WorldAttached<>(ConcurrentHashMap::newKeySet);
-    public static WorldAttached<ConcurrentHashMap.KeySetView<TileEntityInstance<?>, Boolean>> addedLastTick = new WorldAttached<>(ConcurrentHashMap::newKeySet);
 
     private static Matrix4f projectionMatrixThisFrame = null;
 
@@ -48,15 +47,10 @@ public class FastRenderDispatcher {
         queuedUpdates.get(te.getWorld()).add(te);
     }
 
-    public static void enqueueRemove(TileEntity te) {
-        queuedRemovals.get(te.getWorld()).add(te);
-    }
-
     public static void tick() {
         ClientWorld world = Minecraft.getInstance().world;
 
-        runQueue(addedLastTick.get(world), TileEntityInstance::updateLight);
+        runQueue(addedLastTick.get(world), CreateClient.kineticRenderer::onLightUpdate);
-        runQueue(queuedRemovals.get(world), CreateClient.kineticRenderer::remove);
         CreateClient.kineticRenderer.clean();
 
         runQueue(queuedUpdates.get(world), CreateClient.kineticRenderer::update);

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

@@ -1,6 +1,6 @@
 package com.simibubi.create.foundation.render;
 
-import com.simibubi.create.foundation.render.gl.shader.Shader;
+import com.simibubi.create.foundation.render.gl.shader.AllShaderPrograms;
 import com.simibubi.create.foundation.render.gl.shader.ShaderCallback;
 import com.simibubi.create.foundation.render.gl.shader.ShaderHelper;
 import com.simibubi.create.foundation.render.instancing.*;
@@ -11,9 +11,7 @@ import net.minecraft.tileentity.TileEntity;
 
 import javax.annotation.Nullable;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
-import java.util.stream.Collectors;
 
 public class InstancedTileRenderer {
     protected Map<TileEntity, TileEntityInstance<?>> renderers = new HashMap<>();
@@ -25,8 +23,8 @@ public class InstancedTileRenderer {
     }
 
     public void registerMaterials() {
-        materials.put(KineticRenderMaterials.BELTS, new RenderMaterial<>(Shader.BELT, BeltModel::new));
+        materials.put(KineticRenderMaterials.BELTS, new RenderMaterial<>(AllShaderPrograms.BELT, BeltModel::new));
-        materials.put(KineticRenderMaterials.ROTATING, new RenderMaterial<>(Shader.ROTATING, RotatingModel::new));
+        materials.put(KineticRenderMaterials.ROTATING, new RenderMaterial<>(AllShaderPrograms.ROTATING, RotatingModel::new));
     }
 
     @SuppressWarnings("unchecked")
@@ -42,13 +40,15 @@ public class InstancedTileRenderer {
     @SuppressWarnings("unchecked")
     @Nullable
     public <T extends TileEntity> TileEntityInstance<? super T> getInstance(T tile, boolean create) {
-        if (renderers.containsKey(tile)) {
+        TileEntityInstance<?> instance = renderers.get(tile);
-            return (TileEntityInstance<? super T>) renderers.get(tile);
+
+        if (instance != null) {
+            return (TileEntityInstance<? super T>) instance;
         } else if (create) {
             TileEntityInstance<? super T> renderer = InstancedTileRenderRegistry.instance.create(this, tile);
 
             if (renderer != null) {
-                FastRenderDispatcher.addedLastTick.get(tile.getWorld()).add(renderer);
+                FastRenderDispatcher.addedLastTick.get(tile.getWorld()).add(tile);
                 renderers.put(tile, renderer);
             }
 
@@ -60,16 +60,22 @@ public class InstancedTileRenderer {
 
     public <T extends TileEntity> void onLightUpdate(T tile) {
         if (tile instanceof IInstanceRendered) {
-            TileEntityInstance<? super T> instance = getInstance(tile);
+            TileEntityInstance<? super T> instance = getInstance(tile, false);
 
             if (instance != null)
                 instance.updateLight();
         }
     }
 
+    public <T extends TileEntity> void add(T tile) {
+        if (tile instanceof IInstanceRendered) {
+            getInstance(tile);
+        }
+    }
+
     public <T extends TileEntity> void update(T tile) {
         if (tile instanceof IInstanceRendered) {
-            TileEntityInstance<? super T> instance = getInstance(tile);
+            TileEntityInstance<? super T> instance = getInstance(tile, false);
 
             if (instance != null)
                 instance.update();
@@ -91,8 +97,7 @@ public class InstancedTileRenderer {
         // Clean up twice a second. This doesn't have to happen every tick,
         // but this does need to be run to ensure we don't miss anything.
         if (AnimationTickHolder.ticks % 10 == 0) {
-            List<TileEntity> removed = renderers.keySet().stream().filter(TileEntity::isRemoved).collect(Collectors.toList());
+            renderers.keySet().stream().filter(TileEntity::isRemoved).forEach(renderers::remove);
-            removed.forEach(renderers::remove);
         }
     }
 

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

@@ -2,6 +2,7 @@ package com.simibubi.create.foundation.render;
 
 import com.mojang.blaze3d.platform.GlStateManager;
 import com.mojang.datafixers.util.Pair;
+import com.simibubi.create.foundation.render.gl.Backend;
 import com.simibubi.create.foundation.render.gl.GlBuffer;
 import net.minecraft.client.renderer.BufferBuilder;
 import net.minecraft.client.renderer.vertex.VertexFormatElement;
@@ -41,15 +42,11 @@ public class TemplateBuffer {
         ebo.bind(GL15.GL_ELEMENT_ARRAY_BUFFER);
 
         GL15.glBufferData(GL15.GL_ELEMENT_ARRAY_BUFFER, indicesSize, GL15.GL_STATIC_DRAW);
-
+        Backend.MAP_BUFFER.mapBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, indicesSize, indices -> {
-        ByteBuffer indices = GL15.glMapBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER, GL15.GL_WRITE_ONLY);
-
             for (int i = 0; i < vertexCount; i++) {
                 indices.putShort((short) i);
             }
-        indices.rewind();
+        });
-
-        GL15.glUnmapBuffer(GL15.GL_ELEMENT_ARRAY_BUFFER);
 
         ebo.unbind(GL15.GL_ELEMENT_ARRAY_BUFFER);
 

src/main/java/com/simibubi/create/foundation/render/contraption/ContraptionKineticRenderer.java

@@ -1,7 +1,7 @@
 package com.simibubi.create.foundation.render.contraption;
 
 import com.simibubi.create.foundation.render.InstancedTileRenderer;
-import com.simibubi.create.foundation.render.gl.shader.Shader;
+import com.simibubi.create.foundation.render.gl.shader.AllShaderPrograms;
 import com.simibubi.create.foundation.render.instancing.BeltModel;
 import com.simibubi.create.foundation.render.instancing.KineticRenderMaterials;
 import com.simibubi.create.foundation.render.instancing.RenderMaterial;
@@ -12,8 +12,8 @@ public class ContraptionKineticRenderer extends InstancedTileRenderer {
 
     @Override
     public void registerMaterials() {
-        materials.put(KineticRenderMaterials.BELTS, new RenderMaterial<>(Shader.CONTRAPTION_BELT, BeltModel::new));
+        materials.put(KineticRenderMaterials.BELTS, new RenderMaterial<>(AllShaderPrograms.CONTRAPTION_BELT, BeltModel::new));
-        materials.put(KineticRenderMaterials.ROTATING, new RenderMaterial<>(Shader.CONTRAPTION_ROTATING, RotatingModel::new));
+        materials.put(KineticRenderMaterials.ROTATING, new RenderMaterial<>(AllShaderPrograms.CONTRAPTION_ROTATING, RotatingModel::new));
-        materials.put(KineticRenderMaterials.ACTORS, new RenderMaterial<>(Shader.CONTRAPTION_ACTOR, RotatingActorModel::new));
+        materials.put(KineticRenderMaterials.ACTORS, new RenderMaterial<>(AllShaderPrograms.CONTRAPTION_ACTOR, RotatingActorModel::new));
     }
 }

src/main/java/com/simibubi/create/foundation/render/contraption/ContraptionRenderDispatcher.java

@@ -5,7 +5,7 @@ import com.simibubi.create.content.contraptions.components.structureMovement.Abs
 import com.simibubi.create.content.contraptions.components.structureMovement.AbstractContraptionEntityRenderer;
 import com.simibubi.create.content.contraptions.components.structureMovement.Contraption;
 import com.simibubi.create.content.contraptions.components.structureMovement.ContraptionHandler;
-import com.simibubi.create.foundation.render.gl.shader.Shader;
+import com.simibubi.create.foundation.render.gl.shader.AllShaderPrograms;
 import com.simibubi.create.foundation.render.gl.shader.ShaderCallback;
 import com.simibubi.create.foundation.render.gl.shader.ShaderHelper;
 import com.simibubi.create.foundation.utility.AnimationTickHolder;
@@ -97,7 +97,7 @@ public class ContraptionRenderDispatcher {
 
         ShaderCallback callback = ShaderHelper.getViewProjectionCallback(projectionMat, viewMat);
 
-        int structureShader = ShaderHelper.useShader(Shader.CONTRAPTION_STRUCTURE, callback);
+        int structureShader = ShaderHelper.useShader(AllShaderPrograms.CONTRAPTION_STRUCTURE, callback);
         for (RenderedContraption renderer : renderers.values()) {
             renderer.doRenderLayer(layer, structureShader);
         }

src/main/java/com/simibubi/create/foundation/render/gl/GlPrimitiveType.java

@@ -0,0 +1,37 @@
+package com.simibubi.create.foundation.render.gl;
+
+import net.minecraftforge.api.distmarker.Dist;
+import net.minecraftforge.api.distmarker.OnlyIn;
+
+@OnlyIn(Dist.CLIENT)
+public enum GlPrimitiveType {
+    FLOAT(4, "Float", 5126),
+    UBYTE(1, "Unsigned Byte", 5121),
+    BYTE(1, "Byte", 5120),
+    USHORT(2, "Unsigned Short", 5123),
+    SHORT(2, "Short", 5122),
+    UINT(4, "Unsigned Int", 5125),
+    INT(4, "Int", 5124);
+
+    private final int size;
+    private final String displayName;
+    private final int glConstant;
+
+    private GlPrimitiveType(int p_i46095_3_, String p_i46095_4_, int p_i46095_5_) {
+        this.size = p_i46095_3_;
+        this.displayName = p_i46095_4_;
+        this.glConstant = p_i46095_5_;
+    }
+
+    public int getSize() {
+        return this.size;
+    }
+
+    public String getDisplayName() {
+        return this.displayName;
+    }
+
+    public int getGlConstant() {
+        return this.glConstant;
+    }
+}

src/main/java/com/simibubi/create/foundation/render/gl/shader/AllShaderPrograms.java

@@ -0,0 +1,55 @@
+package com.simibubi.create.foundation.render.gl.shader;
+
+import com.simibubi.create.Create;
+import net.minecraft.util.ResourceLocation;
+
+public enum AllShaderPrograms {
+    ROTATING("shader/rotating.vert", "shader/instanced.frag"),
+    BELT("shader/belt.vert", "shader/instanced.frag"),
+    CONTRAPTION_STRUCTURE("shader/contraption_structure.vert", "shader/contraption_structure.frag"),
+    CONTRAPTION_ROTATING("shader/contraption_rotating.vert", "shader/contraption.frag"),
+    CONTRAPTION_BELT("shader/contraption_belt.vert", "shader/contraption.frag"),
+    CONTRAPTION_ACTOR("shader/contraption_actor.vert", "shader/contraption.frag"),
+    ;
+
+    public final String vert;
+    public final String frag;
+
+    AllShaderPrograms(String vert, String frag) {
+        this.vert = vert;
+        this.frag = frag;
+    }
+}
+
+//public class AllShaderPrograms {
+//    public static final ProgramBuilder ROTATING = new ProgramBuilder(name("rotating"))
+//            .vert(vert("rotating"))
+//            .frag(frag("instanced"));
+//    public static final ProgramBuilder BELT = new ProgramBuilder(name("belt"))
+//            .vert(vert("belt"))
+//            .frag(frag("instanced"));
+//    public static final ProgramBuilder CONTRAPTION_STRUCTURE = new ProgramBuilder(name("contraption_structure"))
+//            .vert(vert("contraption_structure"))
+//            .frag(frag("contraption_structure"));
+//    public static final ProgramBuilder CONTRAPTION_ROTATING = new ProgramBuilder(name("contraption_rotating"))
+//            .vert(vert("contraption_rotating"))
+//            .frag(frag("contraption"));
+//    public static final ProgramBuilder CONTRAPTION_BELT = new ProgramBuilder(name("contraption_belt"))
+//            .vert(vert("contraption_belt"))
+//            .frag(frag("contraption"));
+//    public static final ProgramBuilder CONTRAPTION_ACTOR = new ProgramBuilder(name("contraption_actor"))
+//            .vert(vert("contraption_actor"))
+//            .frag(frag("contraption"));
+//
+//    private static ResourceLocation vert(String file) {
+//        return new ResourceLocation(Create.ID, "shader/" + file + ".vert");
+//    }
+//
+//    private static ResourceLocation frag(String file) {
+//        return new ResourceLocation(Create.ID, "shader/" + file + ".vert");
+//    }
+//
+//    private static ResourceLocation name(String name) {
+//        return new ResourceLocation(Create.ID, name);
+//    }
+//}

src/main/java/com/simibubi/create/foundation/render/gl/shader/GLSLType.java

@@ -0,0 +1,45 @@
+package com.simibubi.create.foundation.render.gl.shader;
+
+import com.simibubi.create.foundation.render.gl.GlPrimitiveType;
+
+public class GLSLType {
+    public static final GLSLType FLOAT = new GLSLType("mat4", GlPrimitiveType.FLOAT, 16);
+    public static final GLSLType VEC2 = new GLSLType("vec4", GlPrimitiveType.FLOAT, 4);
+    public static final GLSLType VEC3 = new GLSLType("vec3", GlPrimitiveType.FLOAT, 3);
+    public static final GLSLType VEC4 = new GLSLType("vec2", GlPrimitiveType.FLOAT, 2);
+    public static final GLSLType MAT4 = new GLSLType("float", GlPrimitiveType.FLOAT, 1);
+
+    private final String symbol;
+    private final GlPrimitiveType base;
+    private final int count;
+    private final int size;
+    private final int attributeCount;
+
+    public GLSLType(String symbol, GlPrimitiveType base, int count) {
+        this.symbol = symbol;
+        this.base = base;
+        this.count = count;
+        this.size = base.getSize() * count;
+        this.attributeCount = (this.size + 15) / 16; // ceiling division. GLSL vertex attributes can only be 16 bytes wide
+    }
+
+    public String getSymbol() {
+        return symbol;
+    }
+
+    public GlPrimitiveType getBase() {
+        return base;
+    }
+
+    public int getCount() {
+        return count;
+    }
+
+    public int getSize() {
+        return size;
+    }
+
+    public int getAttributeCount() {
+        return attributeCount;
+    }
+}

src/main/java/com/simibubi/create/foundation/render/gl/shader/ProgramBuilder.java

@@ -0,0 +1,49 @@
+package com.simibubi.create.foundation.render.gl.shader;
+
+import net.minecraft.util.ResourceLocation;
+
+import java.util.EnumMap;
+import java.util.Map;
+
+public class ProgramBuilder {
+
+    private final ResourceLocation name;
+    private final Map<ShaderType, ResourceLocation> shaders;
+
+    private ShaderConstants constants;
+
+    public ProgramBuilder(ResourceLocation name) {
+        this.name = name;
+        shaders = new EnumMap<>(ShaderType.class);
+    }
+
+    public ResourceLocation getName() {
+        return name;
+    }
+
+    public Map<ShaderType, ResourceLocation> getShaders() {
+        return shaders;
+    }
+
+    public ShaderConstants getConstants() {
+        return constants;
+    }
+
+    public ProgramBuilder setConstants(ShaderConstants constants) {
+        this.constants = constants;
+        return this;
+    }
+
+    public ProgramBuilder vert(ResourceLocation file) {
+        return shader(ShaderType.VERTEX, file);
+    }
+
+    public ProgramBuilder frag(ResourceLocation file) {
+        return shader(ShaderType.FRAGMENT, file);
+    }
+
+    public ProgramBuilder shader(ShaderType type, ResourceLocation file) {
+        shaders.put(type, file);
+        return this;
+    }
+}

src/main/java/com/simibubi/create/foundation/render/gl/shader/Shader.java

@@ -1,19 +0,0 @@
-package com.simibubi.create.foundation.render.gl.shader;
-
-public enum Shader {
-    ROTATING("shader/rotating.vert", "shader/instanced.frag"),
-    BELT("shader/belt.vert", "shader/instanced.frag"),
-    CONTRAPTION_STRUCTURE("shader/contraption_structure.vert", "shader/contraption_structure.frag"),
-    CONTRAPTION_ROTATING("shader/contraption_rotating.vert", "shader/contraption.frag"),
-    CONTRAPTION_BELT("shader/contraption_belt.vert", "shader/contraption.frag"),
-    CONTRAPTION_ACTOR("shader/contraption_actor.vert", "shader/contraption.frag"),
-    ;
-
-    public final String vert;
-    public final String frag;
-
-    Shader(String vert, String frag) {
-        this.vert = vert;
-        this.frag = frag;
-    }
-}

src/main/java/com/simibubi/create/foundation/render/gl/shader/ShaderConstants.java

@@ -0,0 +1,21 @@
+package com.simibubi.create.foundation.render.gl.shader;
+
+import java.util.ArrayList;
+
+public class ShaderConstants {
+
+    private final ArrayList<String> defines;
+
+    public ShaderConstants() {
+        defines = new ArrayList<>();
+    }
+
+    public ShaderConstants define(String def) {
+        defines.add(def);
+        return this;
+    }
+
+    public ArrayList<String> getDefines() {
+        return defines;
+    }
+}

src/main/java/com/simibubi/create/foundation/render/gl/shader/ShaderHelper.java

@@ -34,7 +34,7 @@ public class ShaderHelper {
     public static final FloatBuffer VEC3_BUFFER = MemoryUtil.memAllocFloat(3);
     public static final FloatBuffer MATRIX_BUFFER = MemoryUtil.memAllocFloat(16);
 
-    private static final Map<Shader, ShaderProgram> PROGRAMS = new EnumMap<>(Shader.class);
+    private static final Map<AllShaderPrograms, ShaderProgram> PROGRAMS = new EnumMap<>(AllShaderPrograms.class);
 
     @SuppressWarnings("deprecation")
     public static void initShaders() {
@@ -46,7 +46,7 @@ public class ShaderHelper {
                         if (predicate.test(VanillaResourceType.SHADERS)) {
                             PROGRAMS.values().forEach(ShaderLinkHelper::deleteShader);
                             PROGRAMS.clear();
-                            for (Shader shader : Shader.values()) {
+                            for (AllShaderPrograms shader : AllShaderPrograms.values()) {
                                 createProgram(manager, shader);
                             }
                         }
@@ -54,7 +54,7 @@ public class ShaderHelper {
         }
     }
 
-    public static int getShaderHandle(Shader shader) {
+    public static int getShaderHandle(AllShaderPrograms shader) {
         ShaderProgram shaderProgram = PROGRAMS.get(shader);
 
         return shaderProgram.getProgram();
@@ -74,11 +74,11 @@ public class ShaderHelper {
         };
     }
 
-    public static int useShader(Shader shader) {
+    public static int useShader(AllShaderPrograms shader) {
         return useShader(shader, null);
     }
 
-    public static int useShader(Shader shader, @Nullable ShaderCallback cb) {
+    public static int useShader(AllShaderPrograms shader, @Nullable ShaderCallback cb) {
         ShaderProgram prog = PROGRAMS.get(shader);
         if (prog == null) {
             return -1;
@@ -109,7 +109,7 @@ public class ShaderHelper {
         ShaderLinkHelper.useProgram(0);
     }
 
-    private static void createProgram(IResourceManager manager, Shader shader) {
+    private static void createProgram(IResourceManager manager, AllShaderPrograms shader) {
         try {
             ShaderLoader vert = createShader(manager, shader.vert, ShaderLoader.ShaderType.VERTEX);
             ShaderLoader frag = createShader(manager, shader.frag, ShaderLoader.ShaderType.FRAGMENT);

src/main/java/com/simibubi/create/foundation/render/gl/shader/ShaderType.java

@@ -0,0 +1,6 @@
+package com.simibubi.create.foundation.render.gl.shader;
+
+public enum ShaderType {
+    VERTEX,
+    FRAGMENT,
+}

src/main/java/com/simibubi/create/foundation/render/gl/shader/ShaderUniforms.java

@@ -0,0 +1,13 @@
+package com.simibubi.create.foundation.render.gl.shader;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+public class ShaderUniforms {
+    private final Map<String, GLSLType> uniforms;
+
+    public ShaderUniforms() {
+        this.uniforms = new HashMap<>();
+    }
+}

src/main/java/com/simibubi/create/foundation/render/instancing/BeltData.java

@@ -1,6 +1,7 @@
 package com.simibubi.create.foundation.render.instancing;
 
 import com.simibubi.create.foundation.block.render.SpriteShiftEntry;
+import com.simibubi.create.foundation.render.gl.GlPrimitiveType;
 import net.minecraft.client.renderer.texture.TextureAtlasSprite;
 import net.minecraft.client.renderer.vertex.VertexFormatElement;
 
@@ -10,7 +11,7 @@ import static com.simibubi.create.foundation.render.instancing.VertexAttribute.*
 
 public class BeltData extends KineticData<BeltData> {
     public static final VertexAttribute TARGET_UV = copy("scrollTexture", VEC4);
-    public static final VertexAttribute SCROLL_MULT = new VertexAttribute("scrollMult", VertexFormatElement.Type.BYTE, 1, true);
+    public static final VertexAttribute SCROLL_MULT = new VertexAttribute("scrollMult", GlPrimitiveType.BYTE, 1, true);
 
     public static VertexFormat FORMAT = new VertexFormat(KineticData.FORMAT, ROTATION, UV, TARGET_UV, SCROLL_MULT);
 

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

@@ -7,7 +7,7 @@ import com.simibubi.create.AllBlockPartials;
 import com.simibubi.create.content.contraptions.base.KineticTileEntityRenderer;
 import com.simibubi.create.foundation.render.Compartment;
 import com.simibubi.create.foundation.render.SuperByteBufferCache;
-import com.simibubi.create.foundation.render.gl.shader.Shader;
+import com.simibubi.create.foundation.render.gl.shader.AllShaderPrograms;
 import com.simibubi.create.foundation.render.gl.shader.ShaderCallback;
 import com.simibubi.create.foundation.render.gl.shader.ShaderHelper;
 import net.minecraft.block.BlockState;
@@ -33,17 +33,17 @@ public class RenderMaterial<MODEL extends InstancedModel<?>> {
 
     protected final Map<Compartment<?>, Cache<Object, MODEL>> models;
     protected final ModelFactory<MODEL> factory;
-    protected final Shader shader;
+    protected final AllShaderPrograms shader;
     protected final Predicate<RenderType> layerPredicate;
 
     /**
      * Creates a material that renders in the default layer (CUTOUT_MIPPED)
      */
-    public RenderMaterial(Shader shader, ModelFactory<MODEL> factory) {
+    public RenderMaterial(AllShaderPrograms shader, ModelFactory<MODEL> factory) {
         this(shader, factory, type -> type == RenderType.getCutoutMipped());
     }
 
-    public RenderMaterial(Shader shader, ModelFactory<MODEL> factory, Predicate<RenderType> layerPredicate) {
+    public RenderMaterial(AllShaderPrograms shader, ModelFactory<MODEL> factory, Predicate<RenderType> layerPredicate) {
         this.models = new HashMap<>();
         this.factory = factory;
         this.shader = shader;

src/main/java/com/simibubi/create/foundation/render/instancing/VertexAttribute.java

@@ -1,26 +1,26 @@
 package com.simibubi.create.foundation.render.instancing;
 
-import net.minecraft.client.renderer.vertex.VertexFormatElement;
+import com.simibubi.create.foundation.render.gl.GlPrimitiveType;
 import org.lwjgl.opengl.GL20;
 
 public class VertexAttribute {
-    public static final VertexAttribute MAT4 = new VertexAttribute("mat4", VertexFormatElement.Type.FLOAT, 16);
+    public static final VertexAttribute MAT4 = new VertexAttribute("mat4", GlPrimitiveType.FLOAT, 16);
-    public static final VertexAttribute VEC4 = new VertexAttribute("vec4", VertexFormatElement.Type.FLOAT, 4);
+    public static final VertexAttribute VEC4 = new VertexAttribute("vec4", GlPrimitiveType.FLOAT, 4);
-    public static final VertexAttribute VEC3 = new VertexAttribute("vec3", VertexFormatElement.Type.FLOAT, 3);
+    public static final VertexAttribute VEC3 = new VertexAttribute("vec3", GlPrimitiveType.FLOAT, 3);
-    public static final VertexAttribute VEC2 = new VertexAttribute("vec2", VertexFormatElement.Type.FLOAT, 2);
+    public static final VertexAttribute VEC2 = new VertexAttribute("vec2", GlPrimitiveType.FLOAT, 2);
-    public static final VertexAttribute FLOAT = new VertexAttribute("float", VertexFormatElement.Type.FLOAT, 1);
+    public static final VertexAttribute FLOAT = new VertexAttribute("float", GlPrimitiveType.FLOAT, 1);
 
     public static final VertexAttribute POSITION = copy("pos", VEC3);
     public static final VertexAttribute INSTANCE_POSITION = copy("instancePos", VEC3);
     public static final VertexAttribute ROTATION = copy("eulerAngles", VEC3);
-    public static final VertexAttribute NORMAL = new VertexAttribute("normal", VertexFormatElement.Type.BYTE, 3, true);
+    public static final VertexAttribute NORMAL = new VertexAttribute("normal", GlPrimitiveType.BYTE, 3, true);
-    public static final VertexAttribute RGBA = new VertexAttribute("rgba", VertexFormatElement.Type.UBYTE, 4, true);
+    public static final VertexAttribute RGBA = new VertexAttribute("rgba", GlPrimitiveType.UBYTE, 4, true);
-    public static final VertexAttribute RGB = new VertexAttribute("rgb", VertexFormatElement.Type.UBYTE, 3, true);
+    public static final VertexAttribute RGB = new VertexAttribute("rgb", GlPrimitiveType.UBYTE, 3, true);
     public static final VertexAttribute UV = copy("uv", VEC2);
-    public static final VertexAttribute LIGHT = new VertexAttribute("light", VertexFormatElement.Type.UBYTE, 2, true);
+    public static final VertexAttribute LIGHT = new VertexAttribute("light", GlPrimitiveType.UBYTE, 2, true);
 
     private final String name;
-    private final VertexFormatElement.Type type;
+    private final GlPrimitiveType type;
     private final int count;
     private final int size;
     private final int attributeCount;
@@ -39,11 +39,11 @@ public class VertexAttribute {
         this.normalized = that.normalized;
     }
 
-    public VertexAttribute(String name, VertexFormatElement.Type type, int count) {
+    public VertexAttribute(String name, GlPrimitiveType type, int count) {
         this(name, type, count, false);
     }
 
-    public VertexAttribute(String name, VertexFormatElement.Type type, int count, boolean normalized) {
+    public VertexAttribute(String name, GlPrimitiveType type, int count, boolean normalized) {
         this.name = name;
         this.type = type;
         this.count = count;

src/main/java/com/simibubi/create/foundation/render/light/LightVolume.java

@@ -2,6 +2,7 @@ package com.simibubi.create.foundation.render.light;
 
 import com.simibubi.create.foundation.render.RenderWork;
 import com.simibubi.create.foundation.render.gl.GlTexture;
+import com.simibubi.create.foundation.render.gl.shader.ShaderHelper;
 import net.minecraft.util.math.BlockPos;
 import net.minecraft.util.math.SectionPos;
 import net.minecraft.world.ILightReader;
@@ -26,7 +27,19 @@ public class LightVolume {
         setSampleVolume(sampleVolume);
 
         this.glTexture = new GlTexture(GL20.GL_TEXTURE_3D);
-        this.lightData = MemoryUtil.memAlloc(this.textureVolume.volume() * 2);
+        this.lightData = MemoryUtil.memAlloc(this.textureVolume.volume() * 2); // TODO: reduce this to span only sampleVolume
+
+        // allocate space for the texture
+        GL20.glActiveTexture(GL20.GL_TEXTURE4);
+        glTexture.bind();
+
+        int sizeX = textureVolume.sizeX();
+        int sizeY = textureVolume.sizeY();
+        int sizeZ = textureVolume.sizeZ();
+        GL12.glTexImage3D(GL12.GL_TEXTURE_3D, 0, GL40.GL_RG8, sizeX, sizeY, sizeZ, 0, GL40.GL_RG, GL40.GL_UNSIGNED_BYTE, 0);
+
+        glTexture.unbind();
+        GL20.glActiveTexture(GL20.GL_TEXTURE0);
     }
 
     private void setSampleVolume(GridAlignedBB sampleVolume) {
@@ -217,11 +230,19 @@ public class LightVolume {
 
     private void uploadTexture() {
         if (bufferDirty) {
+            GL20.glPixelStorei(GL20.GL_UNPACK_ROW_LENGTH, 0);
+            GL20.glPixelStorei(GL20.GL_UNPACK_SKIP_PIXELS, 0);
+            GL20.glPixelStorei(GL20.GL_UNPACK_SKIP_ROWS, 0);
+            GL20.glPixelStorei(GL20.GL_UNPACK_SKIP_IMAGES, 0);
+            GL20.glPixelStorei(GL20.GL_UNPACK_IMAGE_HEIGHT, 0);
+            GL20.glPixelStorei(GL20.GL_UNPACK_ALIGNMENT, 2);
             int sizeX = textureVolume.sizeX();
             int sizeY = textureVolume.sizeY();
             int sizeZ = textureVolume.sizeZ();
 
-            GL12.glTexImage3D(GL12.GL_TEXTURE_3D, 0, GL40.GL_RG8, sizeX, sizeY, sizeZ, 0, GL40.GL_RG, GL40.GL_UNSIGNED_BYTE, lightData);
+            GL12.glTexSubImage3D(GL12.GL_TEXTURE_3D, 0, 0, 0, 0, sizeX, sizeY, sizeZ, GL40.GL_RG, GL40.GL_UNSIGNED_BYTE, lightData);
+
+            GL20.glPixelStorei(GL20.GL_UNPACK_ALIGNMENT, 4); // 4 is the default
             bufferDirty = false;
         }
     }