Includes, quaternions, and frames.

- Shaders can now reference other files with #flwinclude <"...">.
 - Shaders are now located in assets/flywheel/shaders.
 - Include paths are namespaced (a la ResourceLocation) and relative to the flywheel shaders root folder.
 - Optimized glsl rotations using quaternions (when applicable) and vectorized matrix construction.
 - Vectorize diffuse lighting calculations.
 - Micro optimization in SmartTileEntity.java

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

@@ -10,7 +10,7 @@ public enum ActorVertexAttributes implements IVertexAttrib {
     LIGHT("aModelLight", CommonAttributes.LIGHT),
     OFFSET("aOffset", CommonAttributes.FLOAT),
     AXIS("aAxis", CommonAttributes.NORMAL),
-    INSTANCE_ROTATION("aInstanceRot", CommonAttributes.VEC3),
+    INSTANCE_ROTATION("aInstanceRot", CommonAttributes.QUATERNION),
     ROTATION_CENTER("aRotationCenter", CommonAttributes.NORMAL),
     SPEED("aSpeed", CommonAttributes.FLOAT),
     ;

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

@@ -6,6 +6,7 @@ import com.simibubi.create.foundation.render.backend.gl.attrib.VertexFormat;
 import com.simibubi.create.foundation.render.backend.instancing.InstanceData;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 
+import net.minecraft.client.renderer.Quaternion;
 import net.minecraft.client.renderer.Vector3f;
 import net.minecraft.util.math.BlockPos;
 
@@ -23,9 +24,10 @@ public class ContraptionActorData extends InstanceData {
     private byte rotationAxisX;
     private byte rotationAxisY;
     private byte rotationAxisZ;
-    private float localRotationX;
+    private float qX;
-    private float localRotationY;
+    private float qY;
-    private float localRotationZ;
+    private float qZ;
+    private float qW;
     private byte rotationCenterX = 64;
     private byte rotationCenterY = 64;
     private byte rotationCenterZ = 64;
@@ -88,15 +90,11 @@ public class ContraptionActorData extends InstanceData {
         return this;
     }
 
-    public ContraptionActorData setLocalRotation(Vector3f axis) {
+    public ContraptionActorData setLocalRotation(Quaternion q) {
-        setLocalRotation(axis.getX(), axis.getY(), axis.getZ());
+        this.qX = q.getX();
-        return this;
+        this.qY = q.getY();
-    }
+        this.qZ = q.getZ();
-
+        this.qW = q.getW();
-    public ContraptionActorData setLocalRotation(float localRotationX, float localRotationY, float localRotationZ) {
-        this.localRotationX = localRotationX;
-        this.localRotationY = localRotationY;
-        this.localRotationZ = localRotationZ;
         return this;
     }
 
@@ -106,7 +104,7 @@ public class ContraptionActorData extends InstanceData {
         putVec2(buf, blockLight, skyLight);
         put(buf, rotationOffset);
         putVec3(buf, rotationAxisX, rotationAxisY, rotationAxisZ);
-        putVec3(buf, localRotationX, localRotationY, localRotationZ);
+        putVec4(buf, qX, qY, qZ, qW);
         putVec3(buf, rotationCenterX, rotationCenterY, rotationCenterZ);
         put(buf, speed);
 

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

@@ -10,6 +10,7 @@ import com.simibubi.create.foundation.render.backend.instancing.RenderMaterial;
 import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.VecHelper;
 import net.minecraft.block.BlockState;
+import net.minecraft.client.renderer.Quaternion;
 import net.minecraft.util.Direction;
 
 public class DrillActorInstance extends ActorInstance {
@@ -25,8 +26,15 @@ public class DrillActorInstance extends ActorInstance {
         BlockState state = context.state;
 
         facing = state.get(DrillBlock.FACING);
-        float eulerX = AngleHelper.verticalAngle(facing) + ((facing.getAxis() == Direction.Axis.Y) ? 180 : 0);
+
-        float eulerY = facing.getHorizontalAngle();
+        Direction.Axis axis = facing.getAxis();
+        float eulerX = AngleHelper.verticalAngle(facing);
+
+        float eulerY;
+        if (axis == Direction.Axis.Y)
+            eulerY = 0;
+        else
+            eulerY = facing.getHorizontalAngle() + ((axis == Direction.Axis.X) ? 180 : 0);
 
         drillHead = renderMaterial.getModel(AllBlockPartials.DRILL_HEAD, state).createInstance();
 
@@ -35,7 +43,7 @@ public class DrillActorInstance extends ActorInstance {
                  .setBlockLight(localBlockLight())
                  .setRotationOffset(0)
                  .setRotationAxis(0, 0, 1)
-                 .setLocalRotation(eulerX, eulerY, 0)
+                 .setLocalRotation(new Quaternion(eulerX, eulerY, 0, true))
                  .setSpeed(getSpeed(facing));
     }
 

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

@@ -8,6 +8,7 @@ import com.simibubi.create.foundation.render.backend.instancing.InstanceKey;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 import com.simibubi.create.foundation.render.backend.instancing.RenderMaterial;
 import net.minecraft.block.BlockState;
+import net.minecraft.client.renderer.Quaternion;
 import net.minecraft.client.renderer.Vector3f;
 import net.minecraft.util.Direction;
 import net.minecraft.world.LightType;
@@ -32,13 +33,14 @@ public class HarvesterActorInstance extends ActorInstance {
 
         harvester = renderMaterial.getModel(AllBlockPartials.HARVESTER_BLADE, state).createInstance();
 
+        float horizontalAngle = facing.getHorizontalAngle() + ((facing.getAxis() == Direction.Axis.X) ? 180 : 0);
         harvester.getInstance()
                  .setPosition(context.localPos)
                  .setBlockLight(localBlockLight())
                  .setRotationOffset(0)
                  .setRotationCenter(rotOffset)
                  .setRotationAxis(-1, 0, 0)
-                 .setLocalRotation(0, facing.getHorizontalAngle(), 0)
+                 .setLocalRotation(new Quaternion(Vector3f.POSITIVE_Y, horizontalAngle, true))
                  .setSpeed(getSpeed(facing));
     }
 

src/main/java/com/simibubi/create/content/contraptions/components/deployer/DeployerInstance.java

@@ -31,6 +31,8 @@ public class DeployerInstance extends ShaftInstance implements ITickableInstance
     float zRot;
     float zRotPole;
 
+    float progress = Float.NaN;
+
     public DeployerInstance(InstancedTileRenderer<?> dispatcher, KineticTileEntity tile) {
         super(dispatcher, tile);
     }
@@ -57,13 +59,19 @@ public class DeployerInstance extends ShaftInstance implements ITickableInstance
     @Override
     public void tick() {
 
-        updateHandPose();
+        boolean newHand = updateHandPose();
+
+        float newProgress = getProgress(AnimationTickHolder.getPartialTicks());
+
+        if (!newHand && MathHelper.epsilonEquals(newProgress, progress)) return;
+
+        progress = newProgress;
 
         MatrixStack ms = new MatrixStack();
         MatrixStacker msr = MatrixStacker.of(ms);
 
         msr.translate(getFloatingPos())
-           .translate(getHandOffset(AnimationTickHolder.getPartialTicks()));
+           .translate(getHandOffset());
 
         transformModel(msr, pole, hand, yRot, zRot, zRotPole);
 
@@ -99,13 +107,7 @@ public class DeployerInstance extends ShaftInstance implements ITickableInstance
         return true;
     }
 
-    protected Vec3d getHandOffset(float partialTicks) {
+    protected Vec3d getHandOffset() {
-        float progress = 0;
-        if (tile.state == DeployerTileEntity.State.EXPANDING)
-            progress = 1 - (tile.timer - partialTicks * tile.getTimerSpeed()) / 1000f;
-        if (tile.state == DeployerTileEntity.State.RETRACTING)
-            progress = (tile.timer - partialTicks * tile.getTimerSpeed()) / 1000f;
-
         float handLength = tile.getHandPose() == AllBlockPartials.DEPLOYER_HAND_POINTING ? 0
                 : tile.getHandPose() == AllBlockPartials.DEPLOYER_HAND_HOLDING ? 4 / 16f : 3 / 16f;
         float distance = Math.min(MathHelper.clamp(progress, 0, 1) * (tile.reach + handLength), 21 / 16f);
@@ -113,6 +115,14 @@ public class DeployerInstance extends ShaftInstance implements ITickableInstance
         return offset;
     }
 
+    private float getProgress(float partialTicks) {
+        if (tile.state == DeployerTileEntity.State.EXPANDING)
+            return 1 - (tile.timer - partialTicks * tile.getTimerSpeed()) / 1000f;
+        if (tile.state == DeployerTileEntity.State.RETRACTING)
+            return (tile.timer - partialTicks * tile.getTimerSpeed()) / 1000f;
+        return 0;
+    }
+
     static void transformModel(MatrixStacker msr, InstanceKey<ModelData> pole, InstanceKey<ModelData> hand, float yRot, float zRot, float zRotPole) {
 
         msr.centre();

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

@@ -8,6 +8,7 @@ import com.simibubi.create.foundation.block.render.SpriteShiftEntry;
 import com.simibubi.create.foundation.render.backend.gl.attrib.VertexFormat;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 
+import net.minecraft.client.renderer.Quaternion;
 import net.minecraft.client.renderer.texture.TextureAtlasSprite;
 
 public class BeltData extends KineticData<BeltData> {
@@ -16,9 +17,10 @@ public class BeltData extends KineticData<BeltData> {
                                                     .addAttributes(BeltVertexAttributes.class)
                                                     .build();
 
-    private float rotX;
+    private float qX;
-    private float rotY;
+    private float qY;
-    private float rotZ;
+    private float qZ;
+    private float qW;
     private float sourceU;
     private float sourceV;
     private float minU;
@@ -31,10 +33,11 @@ public class BeltData extends KineticData<BeltData> {
         super(owner);
     }
 
-    public BeltData setRotation(float rotX, float rotY, float rotZ) {
+    public BeltData setRotation(Quaternion q) {
-        this.rotX = rotX;
+        this.qX = q.getX();
-        this.rotY = rotY;
+        this.qY = q.getY();
-        this.rotZ = rotZ;
+        this.qZ = q.getZ();
+        this.qW = q.getW();
         return this;
     }
 
@@ -61,7 +64,7 @@ public class BeltData extends KineticData<BeltData> {
     public void write(ByteBuffer buf) {
         super.write(buf);
 
-        putVec3(buf, rotX, rotY, rotZ);
+        putVec4(buf, qX, qY, qZ, qW);
 
         putVec2(buf, sourceU, sourceV);
         putVec4(buf, minU, minV, maxU, maxV);

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

@@ -13,9 +13,11 @@ import com.simibubi.create.foundation.block.render.SpriteShiftEntry;
 import com.simibubi.create.foundation.render.backend.instancing.InstanceKey;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedModel;
 import com.simibubi.create.foundation.render.backend.instancing.InstancedTileRenderer;
+import com.simibubi.create.foundation.utility.AngleHelper;
 import com.simibubi.create.foundation.utility.Iterate;
 import com.simibubi.create.foundation.utility.MatrixStacker;
 
+import net.minecraft.client.renderer.Quaternion;
 import net.minecraft.item.DyeColor;
 import net.minecraft.util.Direction;
 import net.minecraft.world.LightType;
@@ -114,10 +116,10 @@ public class BeltInstance extends KineticTileInstance<BeltTileEntity> {
     private float getScrollSpeed() {
         float speed = tile.getSpeed();
         if (((facing.getAxisDirection() == Direction.AxisDirection.NEGATIVE) ^ upward) ^
-                ((alongX && !diagonal) || (alongZ && diagonal)) ^ (vertical && facing.getAxisDirection() == Direction.AxisDirection.NEGATIVE)) {
+                ((alongX && !diagonal) || (alongZ && diagonal))) {
             speed = -speed;
         }
-        if (sideways && (facing == Direction.SOUTH || facing == Direction.WEST))
+        if (sideways && (facing == Direction.SOUTH || facing == Direction.WEST) || (vertical && facing == Direction.EAST))
             speed = -speed;
 
         return speed;
@@ -155,15 +157,18 @@ public class BeltInstance extends KineticTileInstance<BeltTileEntity> {
     }
 
     private InstanceKey<BeltData> setup(InstanceKey<BeltData> key, boolean bottom, SpriteShiftEntry spriteShift) {
-        float rotX = (!diagonal && beltSlope != BeltSlope.HORIZONTAL ? 90 : 0) + (beltSlope == BeltSlope.DOWNWARD ? 180 : 0);
+        boolean downward = beltSlope == BeltSlope.DOWNWARD;
-        float rotY = facing.getHorizontalAngle() + (upward ? 180 : 0) + (sideways ? 90 : 0);
+        float rotX = (!diagonal && beltSlope != BeltSlope.HORIZONTAL ? 90 : 0) + (downward ? 180 : 0) + (sideways ? 90 : 0) + (vertical && alongZ ? 180 : 0);
-        float rotZ = sideways ? 90 : ((vertical && facing.getAxisDirection() == Direction.AxisDirection.NEGATIVE) ? 180 : 0);
+        float rotY = facing.getHorizontalAngle() + ((diagonal ^ alongX) && !downward ? 180 : 0) + (sideways && alongZ ? 180 : 0) + (vertical && alongX ? 90 : 0);
+        float rotZ = (sideways ? 90 : 0) + (vertical && alongX ? 90 : 0);
+
+        Quaternion q = new Quaternion(rotX, rotY, rotZ, true);
 
         key.getInstance()
            .setTileEntity(tile)
            .setBlockLight(world.getLightLevel(LightType.BLOCK, pos))
            .setSkyLight(world.getLightLevel(LightType.SKY, pos))
-           .setRotation(rotX, rotY, rotZ)
+           .setRotation(q)
            .setRotationalSpeed(getScrollSpeed())
            .setRotationOffset(bottom ? 0.5f : 0f)
            .setScrollTexture(spriteShift)

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

@@ -6,7 +6,7 @@ import com.simibubi.create.foundation.render.backend.gl.attrib.IVertexAttrib;
 import com.simibubi.create.foundation.render.backend.gl.attrib.VertexAttribSpec;
 
 public enum BeltVertexAttributes implements IVertexAttrib {
-    INSTANCE_ROTATION("aInstanceRot", CommonAttributes.VEC3),
+    INSTANCE_ROTATION("aInstanceRot", CommonAttributes.QUATERNION),
     SOURCE_TEX("aSourceTexture", CommonAttributes.UV),
     SCROLL_TEX("aScrollTexture", CommonAttributes.VEC4),
     SCROLL_MULT("aScrollMult", CommonAttributes.NORMALIZED_BYTE),

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

@@ -108,7 +108,7 @@ public class AllProgramSpecs {
 
 
         private static ResourceLocation loc(String name) {
-            return new ResourceLocation(Create.ID, "shader/" + name);
+            return new ResourceLocation(Create.ID, name);
         }
     }
 }

src/main/java/com/simibubi/create/foundation/render/backend/Backend.java

@@ -1,36 +1,26 @@
 package com.simibubi.create.foundation.render.backend;
 
-import java.io.BufferedInputStream;
-import java.io.IOException;
-import java.io.InputStream;
 import java.nio.FloatBuffer;
-import java.util.EnumMap;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.function.Predicate;
 
 import com.simibubi.create.foundation.render.backend.gl.GlFog;
-import com.simibubi.create.foundation.render.backend.gl.GlFogMode;
 import com.simibubi.create.foundation.render.backend.gl.shader.*;
 import com.simibubi.create.foundation.render.backend.gl.versioned.GlFeatureCompat;
 import com.simibubi.create.foundation.render.backend.instancing.IFlywheelWorld;
 import net.minecraft.world.World;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
-import org.lwjgl.opengl.GL;
 import org.lwjgl.opengl.GLCapabilities;
 import org.lwjgl.system.MemoryUtil;
 
 import com.simibubi.create.foundation.config.AllConfigs;
 
 import net.minecraft.client.Minecraft;
-import net.minecraft.client.renderer.texture.TextureUtil;
 import net.minecraft.resources.IReloadableResourceManager;
 import net.minecraft.resources.IResourceManager;
 import net.minecraft.util.ResourceLocation;
-import net.minecraftforge.resource.IResourceType;
 import net.minecraftforge.resource.ISelectiveResourceReloadListener;
-import net.minecraftforge.resource.VanillaResourceType;
 
 public class Backend {
     public static final Boolean SHADER_DEBUG_OUTPUT = true;
@@ -38,8 +28,8 @@ public class Backend {
     public static final Logger log = LogManager.getLogger(Backend.class);
     public static final FloatBuffer MATRIX_BUFFER = MemoryUtil.memAllocFloat(16);
 
-    private static final Map<ResourceLocation, ProgramSpec<?>> registry = new HashMap<>();
+    static final Map<ResourceLocation, ProgramSpec<?>> registry = new HashMap<>();
-    private static final Map<ProgramSpec<?>, ProgramGroup<?>> programs = new HashMap<>();
+    static final Map<ProgramSpec<?>, ProgramGroup<?>> programs = new HashMap<>();
 
     private static boolean enabled;
 
@@ -102,85 +92,13 @@ public class Backend {
         IResourceManager manager = mc.getResourceManager();
 
         if (manager instanceof IReloadableResourceManager) {
-            ISelectiveResourceReloadListener listener = Backend::onResourceManagerReload;
+            ISelectiveResourceReloadListener listener = ShaderLoader::onResourceManagerReload;
             ((IReloadableResourceManager) manager).addReloadListener(listener);
         }
     }
 
-    private static void onResourceManagerReload(IResourceManager manager, Predicate<IResourceType> predicate) {
-        if (predicate.test(VanillaResourceType.SHADERS)) {
-            capabilities = GL.createCapabilities();
-            compat = new GlFeatureCompat(capabilities);
-
-            OptifineHandler.refresh();
-            refresh();
-
-            if (gl20()) {
-
-                programs.values().forEach(ProgramGroup::delete);
-                programs.clear();
-                for (ProgramSpec<?> shader : registry.values()) {
-                    loadProgram(manager, shader);
-                }
-
-                log.info("Loaded all shader programs.");
-            }
-        }
-    }
-
     public static void refresh() {
         enabled = AllConfigs.CLIENT.experimentalRendering.get() && !OptifineHandler.usingShaders();
     }
 
-    private static <P extends GlProgram, S extends ProgramSpec<P>> void loadProgram(IResourceManager manager, S programSpec) {
-        try {
-            Map<GlFogMode, P> programGroup = new EnumMap<>(GlFogMode.class);
-
-            for (GlFogMode fogMode : GlFogMode.values()) {
-                programGroup.put(fogMode, loadProgram(manager, programSpec, fogMode));
-            }
-
-            programs.put(programSpec, new ProgramGroup<>(programGroup));
-
-            log.debug("Loaded program {}", programSpec.name);
-        } catch (IOException ex) {
-            log.error("Failed to load program {}", programSpec.name, ex);
-            return;
-        }
-    }
-
-    private static <P extends GlProgram, S extends ProgramSpec<P>> P loadProgram(IResourceManager manager, S programSpec, GlFogMode fogMode) throws IOException {
-        GlShader vert = null;
-        GlShader frag = null;
-        try {
-            ShaderConstants defines = new ShaderConstants(programSpec.defines);
-
-            defines.defineAll(fogMode.getDefines());
-
-            vert = loadShader(manager, programSpec.getVert(), ShaderType.VERTEX, defines);
-            frag = loadShader(manager, programSpec.getFrag(), ShaderType.FRAGMENT, defines);
-
-            GlProgram.Builder builder = GlProgram.builder(programSpec.name, fogMode).attachShader(vert).attachShader(frag);
-
-            programSpec.attributes.forEach(builder::addAttribute);
-
-            return builder.build(programSpec.factory);
-
-        } finally {
-            if (vert != null) vert.delete();
-            if (frag != null) frag.delete();
-        }
-    }
-
-    private static GlShader loadShader(IResourceManager manager, ResourceLocation name, ShaderType type, GlShader.PreProcessor preProcessor) throws IOException {
-        try (InputStream is = new BufferedInputStream(manager.getResource(name).getInputStream())) {
-            String source = TextureUtil.func_225687_b_(is);
-
-            if (source == null) {
-                throw new IOException("Could not load program " + name);
-            } else {
-                return new GlShader(type, name, source, preProcessor);
-            }
-        }
-    }
 }

src/main/java/com/simibubi/create/foundation/render/backend/ShaderLoader.java

@@ -0,0 +1,202 @@
+package com.simibubi.create.foundation.render.backend;
+
+import com.google.common.collect.Lists;
+import com.google.common.collect.Sets;
+import com.mojang.blaze3d.systems.RenderSystem;
+import com.simibubi.create.foundation.render.backend.gl.GlFogMode;
+import com.simibubi.create.foundation.render.backend.gl.shader.*;
+import com.simibubi.create.foundation.render.backend.gl.versioned.GlFeatureCompat;
+import net.minecraft.resources.IResource;
+import net.minecraft.resources.IResourceManager;
+import net.minecraft.util.ResourceLocation;
+import net.minecraftforge.resource.IResourceType;
+import net.minecraftforge.resource.VanillaResourceType;
+import org.lwjgl.opengl.GL;
+import org.lwjgl.system.MemoryUtil;
+
+import java.io.*;
+import java.nio.Buffer;
+import java.nio.ByteBuffer;
+import java.nio.channels.Channels;
+import java.nio.channels.FileChannel;
+import java.nio.channels.ReadableByteChannel;
+import java.util.*;
+import java.util.function.Predicate;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+public class ShaderLoader {
+    public static final String SHADER_DIR = "flywheel/shaders/";
+    public static final ArrayList<String> EXTENSIONS = Lists.newArrayList(".vert", ".vsh", ".frag", ".fsh", ".glsl");
+
+    static final Map<ResourceLocation, String> shaderSource = new HashMap<>();
+
+    static void onResourceManagerReload(IResourceManager manager, Predicate<IResourceType> predicate) {
+        if (predicate.test(VanillaResourceType.SHADERS)) {
+            Backend.capabilities = GL.createCapabilities();
+            Backend.compat = new GlFeatureCompat(Backend.capabilities);
+
+            OptifineHandler.refresh();
+            Backend.refresh();
+
+            if (Backend.gl20()) {
+                shaderSource.clear();
+                loadShaderSources(manager);
+
+                Backend.programs.values().forEach(ProgramGroup::delete);
+                Backend.programs.clear();
+                Backend.registry.values().forEach(ShaderLoader::loadProgram);
+
+                Backend.log.info("Loaded all shader programs.");
+            }
+        }
+    }
+
+    private static void loadShaderSources(IResourceManager manager){
+        Collection<ResourceLocation> allShaders = manager.getAllResourceLocations(SHADER_DIR, s -> {
+            for (String ext : EXTENSIONS) {
+                if (s.endsWith(ext)) return true;
+            }
+            return false;
+        });
+
+        for (ResourceLocation location : allShaders) {
+            try {
+                IResource resource = manager.getResource(location);
+
+                String file = readToString(resource.getInputStream());
+
+                ResourceLocation name = new ResourceLocation(location.getNamespace(),
+                                                             location.getPath().substring(SHADER_DIR.length()));
+
+                shaderSource.put(name, file);
+            } catch (IOException e) {
+
+            }
+        }
+    }
+
+    static <P extends GlProgram, S extends ProgramSpec<P>> void loadProgram(S programSpec) {
+        Map<GlFogMode, P> programGroup = new EnumMap<>(GlFogMode.class);
+
+        for (GlFogMode fogMode : GlFogMode.values()) {
+            programGroup.put(fogMode, loadProgram(programSpec, fogMode));
+        }
+
+        Backend.programs.put(programSpec, new ProgramGroup<>(programGroup));
+
+        Backend.log.debug("Loaded program {}", programSpec.name);
+    }
+
+    private static <P extends GlProgram, S extends ProgramSpec<P>> P loadProgram(S programSpec, GlFogMode fogMode) {
+        GlShader vert = null;
+        GlShader frag = null;
+        try {
+            ShaderConstants defines = new ShaderConstants(programSpec.defines);
+
+            defines.defineAll(fogMode.getDefines());
+
+            vert = loadShader(programSpec.getVert(), ShaderType.VERTEX, defines);
+            frag = loadShader(programSpec.getFrag(), ShaderType.FRAGMENT, defines);
+
+            GlProgram.Builder builder = GlProgram.builder(programSpec.name, fogMode).attachShader(vert).attachShader(frag);
+
+            programSpec.attributes.forEach(builder::addAttribute);
+
+            return builder.build(programSpec.factory);
+
+        } finally {
+            if (vert != null) vert.delete();
+            if (frag != null) frag.delete();
+        }
+    }
+
+    private static final Pattern includePattern = Pattern.compile("#flwinclude <\"([\\w\\d_]+:[\\w\\d_./]+)\">");
+
+    private static String processIncludes(ResourceLocation baseName, String source) {
+        HashSet<ResourceLocation> seen = new HashSet<>();
+        seen.add(baseName);
+
+        return includeRecursive(source, seen).collect(Collectors.joining("\n"));
+    }
+
+    private static Stream<String> includeRecursive(String source, Set<ResourceLocation> seen) {
+        return new BufferedReader(new StringReader(source)).lines().flatMap(line -> {
+
+            Matcher matcher = includePattern.matcher(line);
+
+            if (matcher.find()) {
+                String includeName = matcher.group(1);
+
+                ResourceLocation include = new ResourceLocation(includeName);
+
+                if (seen.add(include)) {
+                    String includeSource = shaderSource.get(include);
+
+                    if (includeSource != null) {
+                        return includeRecursive(includeSource, seen);
+                    }
+                }
+            }
+
+            return Stream.of(line);
+        });
+    }
+
+    private static GlShader loadShader(ResourceLocation name, ShaderType type, ShaderConstants defines) {
+        String source = shaderSource.get(name);
+
+        source = processIncludes(name, source);
+
+        if (defines != null)
+            source = defines.process(source);
+
+
+        return new GlShader(type, name, source);
+    }
+
+    public static String readToString(InputStream is) {
+        RenderSystem.assertThread(RenderSystem::isOnRenderThread);
+        ByteBuffer bytebuffer = null;
+
+        try {
+            bytebuffer = readToBuffer(is);
+            int i = bytebuffer.position();
+            ((Buffer)bytebuffer).rewind();
+            return MemoryUtil.memASCII(bytebuffer, i);
+        } catch (IOException e) {
+
+        } finally {
+            if (bytebuffer != null) {
+                MemoryUtil.memFree(bytebuffer);
+            }
+
+        }
+
+        return null;
+    }
+
+    public static ByteBuffer readToBuffer(InputStream is) throws IOException {
+        ByteBuffer bytebuffer;
+        if (is instanceof FileInputStream) {
+            FileInputStream fileinputstream = (FileInputStream)is;
+            FileChannel filechannel = fileinputstream.getChannel();
+            bytebuffer = MemoryUtil.memAlloc((int)filechannel.size() + 1);
+
+            while (filechannel.read(bytebuffer) != -1) { }
+        } else {
+            bytebuffer = MemoryUtil.memAlloc(8192);
+            ReadableByteChannel readablebytechannel = Channels.newChannel(is);
+
+            while (readablebytechannel.read(bytebuffer) != -1) {
+                if (bytebuffer.remaining() == 0) {
+                    bytebuffer = MemoryUtil.memRealloc(bytebuffer, bytebuffer.capacity() * 2);
+                }
+            }
+        }
+
+        return bytebuffer;
+    }
+}

src/main/java/com/simibubi/create/foundation/render/backend/ShaderLoadingException.java

@@ -0,0 +1,23 @@
+package com.simibubi.create.foundation.render.backend;
+
+public class ShaderLoadingException extends RuntimeException {
+
+    public ShaderLoadingException() {
+    }
+
+    public ShaderLoadingException(String message) {
+        super(message);
+    }
+
+    public ShaderLoadingException(String message, Throwable cause) {
+        super(message, cause);
+    }
+
+    public ShaderLoadingException(Throwable cause) {
+        super(cause);
+    }
+
+    public ShaderLoadingException(String message, Throwable cause, boolean enableSuppression, boolean writableStackTrace) {
+        super(message, cause, enableSuppression, writableStackTrace);
+    }
+}

src/main/java/com/simibubi/create/foundation/render/backend/gl/attrib/CommonAttributes.java

@@ -9,6 +9,7 @@ public class CommonAttributes {
     public static final VertexAttribSpec VEC2 = new VertexAttribSpec(GlPrimitiveType.FLOAT, 2);
     public static final VertexAttribSpec FLOAT = new VertexAttribSpec(GlPrimitiveType.FLOAT, 1);
 
+    public static final VertexAttribSpec QUATERNION = new VertexAttribSpec(GlPrimitiveType.FLOAT, 4);
     public static final VertexAttribSpec NORMAL = new VertexAttribSpec(GlPrimitiveType.BYTE, 3, true);
     public static final VertexAttribSpec UV = new VertexAttribSpec(GlPrimitiveType.FLOAT, 2);
 

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

@@ -12,18 +12,11 @@ public class GlShader extends GlObject {
     public final ResourceLocation name;
     public final ShaderType type;
 
-    public GlShader(ShaderType type, ResourceLocation name, String source, PreProcessor preProcessor) {
+    public GlShader(ShaderType type, ResourceLocation name, String source) {
         this.type = type;
         this.name = name;
         int handle = GL20.glCreateShader(type.glEnum);
 
-        if (preProcessor != null) {
-            source = preProcessor.process(source);
-
-            if (Backend.SHADER_DEBUG_OUTPUT)
-                Backend.log.debug("Preprocessor run on " + name);// + ":\n" + source);
-        }
-
         GL20.glShaderSource(handle, source);
         GL20.glCompileShader(handle);
 

src/main/java/com/simibubi/create/foundation/tileEntity/SmartTileEntity.java

@@ -147,9 +147,7 @@ public abstract class SmartTileEntity extends SyncedTileEntity implements ITicka
 
 	@SuppressWarnings("unchecked")
 	public <T extends TileEntityBehaviour> T getBehaviour(BehaviourType<T> type) {
-		if (behaviours.containsKey(type))
+		return (T) behaviours.get(type);
-			return (T) behaviours.get(type);
-		return null;
 	}
 
 	protected boolean isItemHandlerCap(Capability<?> cap) {

src/main/resources/assets/create/flywheel/shaders/belt.vert

@@ -1,6 +1,10 @@
 #version 110
 #define PI 3.1415926538
 
+#flwinclude <"create:core/quaternion.glsl">
+#flwinclude <"create:core/matutils.glsl">
+#flwinclude <"create:core/diffuse.glsl">
+
 attribute vec3 aPos;
 attribute vec3 aNormal;
 attribute vec2 aTexCoords;
@@ -10,7 +14,7 @@ attribute vec2 aLight;
 attribute vec3 aNetworkTint;
 attribute float aSpeed;
 attribute float aOffset;
-attribute vec3 aInstanceRot;
+attribute vec4 aInstanceRot;
 attribute vec2 aSourceTexture;
 attribute vec4 aScrollTexture;
 attribute float aScrollMult;
@@ -38,54 +42,24 @@ uniform vec3 uCameraPos;
 varying float FragDistance;
 #endif
 
-mat4 rotate(vec3 axis, float angle) {
-    float s = sin(angle);
-    float c = cos(angle);
-    float oc = 1. - c;
-
-    return mat4(oc * axis.x * axis.x + c,           oc * axis.x * axis.y - axis.z * s,  oc * axis.z * axis.x + axis.y * s,  0.,
-                oc * axis.x * axis.y + axis.z * s,  oc * axis.y * axis.y + c,           oc * axis.y * axis.z - axis.x * s,  0.,
-                oc * axis.z * axis.x - axis.y * s,  oc * axis.y * axis.z + axis.x * s,  oc * axis.z * axis.z + c,           0.,
-                0.,                                 0.,                                 0.,                                 1.);
-}
-
-float diffuse(vec3 normal) {
-    float x = normal.x;
-    float y = normal.y;
-    float z = normal.z;
-    return min(x * x * .6 + y * y * ((3. + y) / 4.) + z * z * .8, 1.);
-}
-
-mat4 rotation(vec3 rot) {
-    return rotate(vec3(0., 1., 0.), rot.y) * rotate(vec3(0., 0., 1.), rot.z) * rotate(vec3(1., 0., 0.), rot.x);
-}
-
-mat4 localRotation() {
-    vec3 rot = fract(aInstanceRot / 360.) * PI * 2.;
-    return rotation(rot);
-}
-
 void main() {
-    mat4 localRotation = localRotation();
+    vec3 rotated = rotateVertexByQuat(aPos - .5, aInstanceRot) + aInstancePos + .5;
-    vec4 worldPos = localRotation * vec4(aPos - .5, 1.) + vec4(aInstancePos + .5, 0.);
 
-    #ifdef CONTRAPTION
+    vec4 worldPos = vec4(rotated, 1.);
+
+    vec3 norm = rotateVertexByQuat(aNormal, aInstanceRot);
+
+#ifdef CONTRAPTION
     worldPos = uModel * worldPos;
-    mat4 normalMat = uModel * localRotation;
+    norm = normalize(modelToNormal(uModel) * norm);
 
     BoxCoord = (worldPos.xyz - uLightBoxMin) / uLightBoxSize;
     #if defined(USE_FOG)
     FragDistance = length(worldPos.xyz);
     #endif
-    #else
+#elif defined(USE_FOG)
-    mat4 normalMat = localRotation;
-
-    #if defined(USE_FOG)
     FragDistance = length(worldPos.xyz - uCameraPos);
-    #endif
+#endif
-    #endif
-
-    vec3 norm = normalize(normalMat * vec4(aNormal, 0.)).xyz;
 
     float scrollSize = aScrollTexture.w - aScrollTexture.y;
     float scroll = fract(aSpeed * uTime / (31.5 * 16.) + aOffset) * scrollSize * aScrollMult;

src/main/resources/assets/create/flywheel/shaders/contraption_actor.vert

@@ -0,0 +1,71 @@
+#version 110
+#define PI 3.1415926538
+
+#flwinclude <"create:core/matutils.glsl">
+#flwinclude <"create:core/quaternion.glsl">
+#flwinclude <"create:core/diffuse.glsl">
+
+// model data
+attribute vec3 aPos;
+attribute vec3 aNormal;
+attribute vec2 aTexCoords;
+
+// instance data
+attribute vec3 aInstancePos;
+attribute vec2 aModelLight;
+attribute float aOffset;
+attribute vec3 aAxis;
+attribute vec4 aInstanceRot;
+attribute vec3 aRotationCenter;
+attribute float aSpeed;
+
+
+varying float Diffuse;
+varying vec2 TexCoords;
+varying vec4 Color;
+varying vec3 BoxCoord;
+varying vec2 Light;
+
+uniform vec3 uLightBoxSize;
+uniform vec3 uLightBoxMin;
+uniform mat4 uModel;
+
+uniform float uTime;
+uniform mat4 uViewProjection;
+uniform int uDebug;
+
+uniform vec3 uCameraPos;
+
+#if defined(USE_FOG)
+varying float FragDistance;
+#endif
+
+void main() {
+    float degrees = aOffset + uTime * aSpeed / 20.;
+    //float angle = fract(degrees / 360.) * PI * 2.;
+
+    vec4 kineticRot = quat(aAxis, degrees);
+    vec3 rotated = rotateVertexByQuat(aPos - aRotationCenter, kineticRot) + aRotationCenter;
+    vec3 localPos = rotateVertexByQuat(rotated - .5, aInstanceRot) + aInstancePos + .5;
+
+    vec4 worldPos = uModel * vec4(localPos, 1.);
+
+    vec3 norm = rotateVertexByQuat(rotateVertexByQuat(aNormal, kineticRot), aInstanceRot);
+    norm = modelToNormal(uModel) * norm;
+
+    BoxCoord = (worldPos.xyz - uLightBoxMin) / uLightBoxSize;
+    Diffuse = diffuse(norm);
+    TexCoords = aTexCoords;
+    Light = aModelLight;
+    gl_Position = uViewProjection * worldPos;
+
+    #if defined(USE_FOG)
+    FragDistance = length(worldPos.xyz);
+    #endif
+
+    if (uDebug == 2) {
+        Color = vec4(norm, 1.);
+    } else {
+        Color = vec4(1.);
+    }
+}

src/main/resources/assets/create/flywheel/shaders/contraption_structure.vert

@@ -1,6 +1,9 @@
 #version 110
 #define PI 3.1415926538
 
+#flwinclude <"create:core/matutils.glsl">
+#flwinclude <"create:core/diffuse.glsl">
+
 attribute vec3 aPos;
 attribute vec3 aNormal;
 attribute vec2 aTexCoords;
@@ -27,24 +30,6 @@ uniform vec3 uCameraPos;
 varying float FragDistance;
 #endif
 
-mat4 rotate(vec3 axis, float angle) {
-    float s = sin(angle);
-    float c = cos(angle);
-    float oc = 1. - c;
-
-    return mat4(oc * axis.x * axis.x + c,           oc * axis.x * axis.y - axis.z * s,  oc * axis.z * axis.x + axis.y * s,  0.,
-                oc * axis.x * axis.y + axis.z * s,  oc * axis.y * axis.y + c,           oc * axis.y * axis.z - axis.x * s,  0.,
-                oc * axis.z * axis.x - axis.y * s,  oc * axis.y * axis.z + axis.x * s,  oc * axis.z * axis.z + c,           0.,
-                0.,                                 0.,                                 0.,                                 1.);
-}
-
-float diffuse(vec3 normal) {
-    float x = normal.x;
-    float y = normal.y;
-    float z = normal.z;
-    return min(x * x * .6 + y * y * ((3. + y) / 4.) + z * z * .8, 1.);
-}
-
 void main() {
     vec4 viewPos = uModel * vec4(aPos, 1.);
 

src/main/resources/assets/create/flywheel/shaders/core/diffuse.glsl

@@ -0,0 +1,5 @@
+
+float diffuse(vec3 normal) {
+    vec3 n2 = normal * normal * vec3(.6, .25, .8);
+    return min(n2.x + n2.y * (3. + normal.y) + n2.z, 1.);
+}

src/main/resources/assets/create/flywheel/shaders/core/matutils.glsl

@@ -0,0 +1,42 @@
+
+//mat4 rotate(vec3 axis, float angle) {
+//    float s = sin(angle);
+//    float c = cos(angle);
+//    float oc = 1. - c;
+//
+//    return mat4(
+//    oc * axis.x * axis.x + c,           oc * axis.x * axis.y - axis.z * s,  oc * axis.z * axis.x + axis.y * s,  0.,
+//    oc * axis.x * axis.y + axis.z * s,  oc * axis.y * axis.y + c,           oc * axis.y * axis.z - axis.x * s,  0.,
+//    oc * axis.z * axis.x - axis.y * s,  oc * axis.y * axis.z + axis.x * s,  oc * axis.z * axis.z + c,           0.,
+//    0.,                                 0.,                                 0.,                                 1.
+//    );
+//}
+
+mat4 rotate(vec3 axis, float angle) {
+    float s = sin(angle);
+    float c = cos(angle);
+    float oc = 1. - c;
+
+    vec3 sa = axis * s;
+
+    mat4 mr = mat4(1.);
+    mr[0].xyz = oc * axis.xxz * axis.xyx + vec3(c, sa.z, -sa.y);
+    mr[1].xyz = oc * axis.xyy * axis.yyz + vec3(-sa.z, c, sa.x);
+    mr[2].xyz = oc * axis.zyz * axis.xzz + vec3(sa.y, -sa.x, c);
+
+    return mr;
+}
+
+mat4 rotation(vec3 rot) {
+    return rotate(vec3(0., 1., 0.), rot.y) * rotate(vec3(0., 0., 1.), rot.z) * rotate(vec3(1., 0., 0.), rot.x);
+}
+
+mat3 modelToNormal(mat4 mat) {
+    // Discard the edges. This won't be accurate for scaled or skewed matrices,
+    // but we don't have to work with those often.
+    mat3 m;
+    m[0] = mat[0].xyz;
+    m[1] = mat[1].xyz;
+    m[2] = mat[2].xyz;
+    return m;
+}

src/main/resources/assets/create/flywheel/shaders/core/quaternion.glsl

@@ -0,0 +1,56 @@
+
+#define PIOVER2 1.5707963268
+
+vec4 quat(vec3 axis, float angle) {
+    float halfAngle = angle * PIOVER2 / 180.0;
+    vec2 cs = sin(vec2(PIOVER2 - halfAngle, halfAngle)); // compute sin and cos in one instruction
+    return vec4(axis.xyz * cs.y,  cs.x);
+}
+
+vec4 quatMult(vec4 q1, vec4 q2) {
+    // disgustingly vectorized quaternion multiplication
+    vec4 a = q1.w * q2.xyzw;
+    vec4 b = q1.x * q2.wzxy * vec4(1., -1., 1., -1.);
+    vec4 c = q1.y * q2.zwxy * vec4(1., 1., -1., -1.);
+    vec4 d = q1.z * q2.yxwz * vec4(-1., 1., 1., -1.);
+
+    return a + b + c + d;
+}
+//
+//vec4 exp(vec4 q) {
+//    vec3 i = q.xyz;
+//    float r = sqrt(dot(i, i));
+//    float et = exp(q.w);
+//    float s = et * sin(r) / r;
+//
+//    vec4 qr;
+//    qr.w = et * cos(r);
+//    qr.xyz = i * s;
+//
+//    return qr;
+//}
+//
+//vec4 ln(vec4 q) {
+//    vec3 i = q.xyz;
+//    float r = sqrt(dot(i, i));
+//    float t = atan(r, q.w) / r;
+//
+//    vec4 qr;
+//    qr.w = log(dot(q, q)) * 0.5;
+//    qr.xyz = i * t;
+//
+//    return qr;
+//}
+//
+//vec4 pow(vec4 q, float n) {
+//    return exp(ln(q) * n);
+//}
+
+vec3 rotateVertexByQuat(vec3 v, vec4 q) {
+    vec3 i = q.xyz;
+    return v + 2.0 * cross(i, cross(i, v) + q.w * v);
+}
+
+vec3 rotateAbout(vec3 v, vec3 axis, float angle) {
+    return rotateVertexByQuat(v, quat(axis, angle));
+}

src/main/resources/assets/create/flywheel/shaders/flap.vert

@@ -1,6 +1,10 @@
 #version 110
 #define PI 3.1415926538
 
+#flwinclude <"create:core/matutils.glsl">
+#flwinclude <"create:core/quaternion.glsl">
+#flwinclude <"create:core/diffuse.glsl">
+
 attribute vec3 aPos;
 attribute vec3 aNormal;
 attribute vec2 aTexCoords;
@@ -40,24 +44,6 @@ uniform vec3 uCameraPos;
 varying float FragDistance;
 #endif
 
-float diffuse(vec3 normal) {
-    float x = normal.x;
-    float y = normal.y;
-    float z = normal.z;
-    return min(x * x * .6 + y * y * ((3. + y) / 4.) + z * z * .8, 1.);
-}
-
-mat4 rotate(vec3 axis, float angle) {
-    float s = sin(angle);
-    float c = cos(angle);
-    float oc = 1. - c;
-
-    return mat4(oc * axis.x * axis.x + c,           oc * axis.x * axis.y - axis.z * s,  oc * axis.z * axis.x + axis.y * s,  0.,
-    oc * axis.x * axis.y + axis.z * s,  oc * axis.y * axis.y + c,           oc * axis.y * axis.z - axis.x * s,  0.,
-    oc * axis.z * axis.x - axis.y * s,  oc * axis.y * axis.z + axis.x * s,  oc * axis.z * axis.z + c,           0.,
-    0.,                                 0.,                                 0.,                                 1.);
-}
-
 float toRad(float degrees) {
     return fract(degrees / 360.) * PI * 2.;
 }
@@ -72,35 +58,32 @@ float getFlapAngle() {
     float which = step(0., aFlapness);
     float degrees = which * halfAngle + (1. - which) * angle; // branchless conditional multiply
 
-    return -toRad(degrees);
+    return degrees;
 }
 
 void main() {
     float flapAngle = getFlapAngle();
 
-    mat4 orientation = rotate(vec3(0., 1., 0.), toRad(aHorizontalAngle));
+    vec4 orientation = quat(vec3(0., 1., 0.), -aHorizontalAngle);
-    mat4 flapRotation = rotate(vec3(1., 0., 0.), flapAngle);
+    vec4 flapRotation = quat(vec3(1., 0., 0.), flapAngle);
 
-    vec4 worldPos = flapRotation * vec4(aPos - aPivot, 1.) + vec4(aPivot + aSegmentOffset, 0.);
+    vec3 rotated = rotateVertexByQuat(aPos - aPivot, flapRotation) + aPivot + aSegmentOffset;
-    worldPos = orientation * vec4(worldPos.xyz - .5, 1.) + vec4(aInstancePos + .5, 0.);
+    rotated = rotateVertexByQuat(rotated - .5, orientation) + aInstancePos + .5;
+
+    vec4 worldPos = vec4(rotated, 1.);
+    vec3 norm = rotateVertexByQuat(rotateVertexByQuat(aNormal, flapRotation), orientation);
 
     #ifdef CONTRAPTION
     worldPos = uModel * worldPos;
-    mat4 normalMat = uModel * orientation * flapRotation;
+    norm = modelToNormal(uModel) * norm;
 
     BoxCoord = (worldPos.xyz - uLightBoxMin) / uLightBoxSize;
     #if defined(USE_FOG)
     FragDistance = length(worldPos.xyz);
     #endif
-    #else
+    #elif defined(USE_FOG)
-    mat4 normalMat = orientation * flapRotation;
-
-    #if defined(USE_FOG)
     FragDistance = length(worldPos.xyz - uCameraPos);
     #endif
-    #endif
-
-    vec3 norm = normalize(normalMat * vec4(aNormal, 0.)).xyz;
 
     Diffuse = diffuse(norm);
     TexCoords = aTexCoords;

src/main/resources/assets/create/flywheel/shaders/model.vert

@@ -1,5 +1,8 @@
 #version 110
 
+#flwinclude <"create:core/matutils.glsl">
+#flwinclude <"create:core/diffuse.glsl">
+
 attribute vec3 aPos;
 attribute vec3 aNormal;
 attribute vec2 aTexCoords;
@@ -32,23 +35,6 @@ uniform vec3 uCameraPos;
 varying float FragDistance;
 #endif
 
-mat3 modelToNormal(mat4 mat) {
-    // Discard the edges. This won't be accurate for scaled or skewed matrices,
-    // but we don't have to work with those often.
-    mat3 m;
-    m[0] = mat[0].xyz;
-    m[1] = mat[1].xyz;
-    m[2] = mat[2].xyz;
-    return m;
-}
-
-float diffuse(vec3 normal) {
-    float x = normal.x;
-    float y = normal.y;
-    float z = normal.z;
-    return min(x * x * .6 + y * y * ((3. + y) / 4.) + z * z * .8, 1.);
-}
-
 void main() {
     vec4 worldPos = aTransform * vec4(aPos, 1.);
 

src/main/resources/assets/create/flywheel/shaders/rotating.vert

@@ -0,0 +1,82 @@
+#version 110
+#define PI 3.1415926538
+
+#flwinclude <"create:core/quaternion.glsl">
+#flwinclude <"create:core/matutils.glsl">
+#flwinclude <"create:core/diffuse.glsl">
+
+attribute vec3 aPos;
+attribute vec3 aNormal;
+attribute vec2 aTexCoords;
+
+attribute vec3 aInstancePos;
+attribute vec2 aLight;
+attribute vec3 aNetworkTint;
+attribute float aSpeed;
+attribute float aOffset;
+attribute vec3 aAxis;
+
+varying vec2 TexCoords;
+varying vec4 Color;
+varying float Diffuse;
+varying vec2 Light;
+
+#if defined(CONTRAPTION)
+varying vec3 BoxCoord;
+
+uniform vec3 uLightBoxSize;
+uniform vec3 uLightBoxMin;
+uniform mat4 uModel;
+#endif
+
+uniform float uTime;
+uniform mat4 uViewProjection;
+uniform int uDebug;
+
+uniform vec3 uCameraPos;
+
+#if defined(USE_FOG)
+varying float FragDistance;
+#endif
+
+void main() {
+    float degrees = aOffset + uTime * aSpeed * 3./10.;
+    vec4 kineticRot = quat(aAxis, degrees);
+
+    vec4 worldPos = vec4(rotateVertexByQuat(aPos - .5, kineticRot) + aInstancePos + .5, 1.);
+
+    vec3 norm = rotateVertexByQuat(aNormal, kineticRot);
+
+    #ifdef CONTRAPTION
+    worldPos = uModel * worldPos;
+    norm = modelToNormal(uModel) * norm;
+
+    BoxCoord = (worldPos.xyz - uLightBoxMin) / uLightBoxSize;
+    #if defined(USE_FOG)
+    FragDistance = length(worldPos.xyz);
+    #endif
+    #elif defined(USE_FOG)
+    FragDistance = length(worldPos.xyz - uCameraPos);
+    #endif
+
+    Diffuse = diffuse(norm);
+    TexCoords = aTexCoords;
+    Light = aLight;
+    gl_Position = uViewProjection * worldPos;
+
+    #ifdef CONTRAPTION
+    if (uDebug == 2) {
+        Color = vec4(norm, 1.);
+    } else {
+        Color = vec4(1.);
+    }
+    #else
+    if (uDebug == 1) {
+        Color = vec4(aNetworkTint, 1.);
+    } else if (uDebug == 2) {
+        Color = vec4(norm, 1.);
+    } else {
+        Color = vec4(1.);
+    }
+    #endif
+}

src/main/resources/assets/create/shader/contraption_actor.vert

@@ -1,94 +0,0 @@
-#version 110
-#define PI 3.1415926538
-// model data
-attribute vec3 aPos;
-attribute vec3 aNormal;
-attribute vec2 aTexCoords;
-
-// instance data
-attribute vec3 aInstancePos;
-attribute vec2 aModelLight;
-attribute float aOffset;
-attribute vec3 aAxis;
-attribute vec3 aInstanceRot;
-attribute vec3 aRotationCenter;
-attribute float aSpeed;
-
-
-varying float Diffuse;
-varying vec2 TexCoords;
-varying vec4 Color;
-varying vec3 BoxCoord;
-varying vec2 Light;
-
-uniform vec3 uLightBoxSize;
-uniform vec3 uLightBoxMin;
-uniform mat4 uModel;
-
-uniform float uTime;
-uniform mat4 uViewProjection;
-uniform int uDebug;
-
-uniform vec3 uCameraPos;
-
-#if defined(USE_FOG)
-varying float FragDistance;
-#endif
-
-mat4 rotate(vec3 axis, float angle) {
-    float s = sin(angle);
-    float c = cos(angle);
-    float oc = 1. - c;
-
-    return mat4(oc * axis.x * axis.x + c,           oc * axis.x * axis.y - axis.z * s,  oc * axis.z * axis.x + axis.y * s,  0.,
-                oc * axis.x * axis.y + axis.z * s,  oc * axis.y * axis.y + c,           oc * axis.y * axis.z - axis.x * s,  0.,
-                oc * axis.z * axis.x - axis.y * s,  oc * axis.y * axis.z + axis.x * s,  oc * axis.z * axis.z + c,           0.,
-                0.,                                 0.,                                 0.,                                 1.);
-}
-
-float diffuse(vec3 normal) {
-    float x = normal.x;
-    float y = normal.y;
-    float z = normal.z;
-    return min(x * x * .6 + y * y * ((3. + y) / 4.) + z * z * .8, 1.);
-}
-
-mat4 rotation(vec3 rot) {
-    return rotate(vec3(0., 1., 0.), rot.y) * rotate(vec3(0., 0., 1.), rot.z) * rotate(vec3(1., 0., 0.), rot.x);
-}
-
-mat4 kineticRotation() {
-    float degrees = aOffset + uTime * aSpeed / 20.;
-    float angle = fract(degrees / 360.) * PI * 2.;
-
-    return rotate(normalize(aAxis), -angle);
-}
-
-void main() {
-    mat4 kineticRotation = kineticRotation();
-    vec4 localPos = kineticRotation * vec4(aPos - aRotationCenter, 1.) + vec4(aRotationCenter, 0.);
-
-    vec3 rot = fract(aInstanceRot / 360.) * PI * 2.;
-    mat4 localRot = rotation(rot);
-    localPos = localRot * vec4(localPos.xyz - .5, 1.) + vec4(aInstancePos + .5, 0.);
-
-    vec4 worldPos = uModel * localPos;
-
-    vec3 norm = normalize(uModel * localRot * kineticRotation * vec4(aNormal, 0.)).xyz;
-
-    BoxCoord = (worldPos.xyz - uLightBoxMin) / uLightBoxSize;
-    Diffuse = diffuse(norm);
-    TexCoords = aTexCoords;
-    Light = aModelLight;
-    gl_Position = uViewProjection * worldPos;
-
-    #if defined(USE_FOG)
-    FragDistance = length(worldPos.xyz);
-    #endif
-
-    if (uDebug == 2) {
-        Color = vec4(norm, 1.);
-    } else {
-        Color = vec4(1.);
-    }
-}

src/main/resources/assets/create/shader/rotating.vert

@@ -1,108 +0,0 @@
-#version 110
-#define PI 3.1415926538
-attribute vec3 aPos;
-attribute vec3 aNormal;
-attribute vec2 aTexCoords;
-
-attribute vec3 aInstancePos;
-attribute vec2 aLight;
-attribute vec3 aNetworkTint;
-attribute float aSpeed;
-attribute float aOffset;
-attribute vec3 aAxis;
-
-varying vec2 TexCoords;
-varying vec4 Color;
-varying float Diffuse;
-varying vec2 Light;
-
-#if defined(CONTRAPTION)
-varying vec3 BoxCoord;
-
-uniform vec3 uLightBoxSize;
-uniform vec3 uLightBoxMin;
-uniform mat4 uModel;
-#endif
-
-uniform float uTime;
-uniform mat4 uViewProjection;
-uniform int uDebug;
-
-uniform vec3 uCameraPos;
-
-#if defined(USE_FOG)
-varying float FragDistance;
-#endif
-
-mat4 rotate(vec3 axis, float angle) {
-    float s = sin(angle);
-    float c = cos(angle);
-    float oc = 1. - c;
-
-    return mat4(oc * axis.x * axis.x + c,           oc * axis.x * axis.y - axis.z * s,  oc * axis.z * axis.x + axis.y * s,  0.,
-                oc * axis.x * axis.y + axis.z * s,  oc * axis.y * axis.y + c,           oc * axis.y * axis.z - axis.x * s,  0.,
-                oc * axis.z * axis.x - axis.y * s,  oc * axis.y * axis.z + axis.x * s,  oc * axis.z * axis.z + c,           0.,
-                0.,                                 0.,                                 0.,                                 1.);
-}
-
-float diffuse(vec3 normal) {
-    float x = normal.x;
-    float y = normal.y;
-    float z = normal.z;
-    return min(x * x * .6 + y * y * ((3. + y) / 4.) + z * z * .8, 1.);
-}
-
-mat4 rotation(vec3 rot) {
-    return rotate(vec3(0., 1., 0.), rot.y) * rotate(vec3(0., 0., 1.), rot.z) * rotate(vec3(1., 0., 0.), rot.x);
-}
-
-mat4 kineticRotation() {
-    float degrees = aOffset + uTime * aSpeed * -3./10.;
-    float angle = fract(degrees / 360.) * PI * 2.;
-
-    return rotate(aAxis, angle);
-}
-
-void main() {
-    mat4 kineticRotation = kineticRotation();
-    vec4 worldPos = kineticRotation * vec4(aPos - .5, 1.) + vec4(aInstancePos + .5, 0.);
-
-    #ifdef CONTRAPTION
-    worldPos = uModel * worldPos;
-    mat4 normalMat = uModel * kineticRotation;
-
-    BoxCoord = (worldPos.xyz - uLightBoxMin) / uLightBoxSize;
-    #if defined(USE_FOG)
-    FragDistance = length(worldPos.xyz);
-    #endif
-    #else
-    mat4 normalMat = kineticRotation;
-
-    #if defined(USE_FOG)
-    FragDistance = length(worldPos.xyz - uCameraPos);
-    #endif
-    #endif
-
-    vec3 norm = normalize(normalMat * vec4(aNormal, 0.)).xyz;
-
-    Diffuse = diffuse(norm);
-    TexCoords = aTexCoords;
-    Light = aLight;
-    gl_Position = uViewProjection * worldPos;
-
-    #ifdef CONTRAPTION
-    if (uDebug == 2) {
-        Color = vec4(norm, 1.);
-    } else {
-        Color = vec4(1.);
-    }
-    #else
-    if (uDebug == 1) {
-        Color = vec4(aNetworkTint, 1.);
-    } else if (uDebug == 2) {
-        Color = vec4(norm, 1.);
-    } else {
-        Color = vec4(1.);
-    }
-    #endif
-}