diff --git a/src/main/java/com/jozufozu/flywheel/backend/instancing/InstanceData.java b/src/main/java/com/jozufozu/flywheel/backend/instancing/InstanceData.java
index 125ddbdeb..5379822de 100644
--- a/src/main/java/com/jozufozu/flywheel/backend/instancing/InstanceData.java
+++ b/src/main/java/com/jozufozu/flywheel/backend/instancing/InstanceData.java
@@ -1,7 +1,5 @@
 package com.jozufozu.flywheel.backend.instancing;
 
-import com.jozufozu.flywheel.backend.gl.buffer.VecBuffer;
-
 public abstract class InstanceData {
 
 	Instancer<?> owner;
@@ -9,8 +7,6 @@ public abstract class InstanceData {
 	boolean dirty;
 	boolean removed;
 
-	public abstract void write(VecBuffer buf);
-
 	public void markDirty() {
 		owner.markDirty(this);
 	}
diff --git a/src/main/java/com/jozufozu/flywheel/backend/struct/BasicStructType.java b/src/main/java/com/jozufozu/flywheel/backend/struct/BasicStructType.java
deleted file mode 100644
index eaa9eaa3d..000000000
--- a/src/main/java/com/jozufozu/flywheel/backend/struct/BasicStructType.java
+++ /dev/null
@@ -1,50 +0,0 @@
-package com.jozufozu.flywheel.backend.struct;
-
-import com.jozufozu.flywheel.backend.gl.attrib.VertexFormat;
-import com.jozufozu.flywheel.backend.gl.buffer.VecBuffer;
-import com.jozufozu.flywheel.backend.instancing.InstanceData;
-import com.jozufozu.flywheel.util.NonNullSupplier;
-
-public class BasicStructType<S extends InstanceData> implements StructType<S> {
-
-	private final NonNullSupplier<S> factory;
-	private final VertexFormat format;
-
-	public BasicStructType(NonNullSupplier<S> factory, VertexFormat format) {
-		this.factory = factory;
-		this.format = format;
-	}
-
-	@Override
-	public S create() {
-		return factory.get();
-	}
-
-	@Override
-	public VertexFormat format() {
-		return format;
-	}
-
-	@Override
-	public StructWriter<S> getWriter(VecBuffer backing) {
-		return new BasicWriter(backing);
-	}
-
-	public class BasicWriter implements StructWriter<S> {
-		private final VecBuffer buffer;
-
-		public BasicWriter(VecBuffer buffer) {
-			this.buffer = buffer;
-		}
-
-		@Override
-		public void write(S struct) {
-			struct.write(buffer);
-		}
-
-		@Override
-		public void seek(int pos) {
-			buffer.position(pos * format.getStride());
-		}
-	}
-}
diff --git a/src/main/java/com/jozufozu/flywheel/core/materials/BasicData.java b/src/main/java/com/jozufozu/flywheel/core/materials/BasicData.java
index 3434b5284..eed1208bd 100644
--- a/src/main/java/com/jozufozu/flywheel/core/materials/BasicData.java
+++ b/src/main/java/com/jozufozu/flywheel/core/materials/BasicData.java
@@ -1,6 +1,5 @@
 package com.jozufozu.flywheel.core.materials;
 
-import com.jozufozu.flywheel.backend.gl.buffer.VecBuffer;
 import com.jozufozu.flywheel.backend.instancing.InstanceData;
 
 public abstract class BasicData extends InstanceData implements IFlatLight<BasicData> {
@@ -65,8 +64,4 @@ public abstract class BasicData extends InstanceData implements IFlatLight<Basic
 		return this;
 	}
 
-	@Override
-	public void write(VecBuffer buf) {
-		buf.putByteArray(new byte[]{blockLight, skyLight, r, g, b, a});
-	}
 }
diff --git a/src/main/java/com/jozufozu/flywheel/core/materials/model/ModelData.java b/src/main/java/com/jozufozu/flywheel/core/materials/model/ModelData.java
index 7f53555ba..0b5b2590a 100644
--- a/src/main/java/com/jozufozu/flywheel/core/materials/model/ModelData.java
+++ b/src/main/java/com/jozufozu/flywheel/core/materials/model/ModelData.java
@@ -1,8 +1,6 @@
 package com.jozufozu.flywheel.core.materials.model;
 
-import com.jozufozu.flywheel.backend.gl.buffer.VecBuffer;
 import com.jozufozu.flywheel.core.materials.BasicData;
-import com.jozufozu.flywheel.util.WriteSafe;
 import com.jozufozu.flywheel.util.transform.Rotate;
 import com.jozufozu.flywheel.util.transform.Scale;
 import com.jozufozu.flywheel.util.transform.Translate;
@@ -48,13 +46,6 @@ public class ModelData extends BasicData implements Translate<ModelData>, Rotate
 		return this;
 	}
 
-	@Override
-	public void write(VecBuffer buf) {
-		super.write(buf);
-		((WriteSafe) (Object) model).write(buf);
-		((WriteSafe) (Object) normal).write(buf);
-	}
-
 	@Override
 	public ModelData multiply(Quaternion quaternion) {
 		markDirty();
diff --git a/src/main/java/com/jozufozu/flywheel/core/materials/oriented/OrientedData.java b/src/main/java/com/jozufozu/flywheel/core/materials/oriented/OrientedData.java
index 850b426a3..d819870f2 100644
--- a/src/main/java/com/jozufozu/flywheel/core/materials/oriented/OrientedData.java
+++ b/src/main/java/com/jozufozu/flywheel/core/materials/oriented/OrientedData.java
@@ -1,6 +1,5 @@
 package com.jozufozu.flywheel.core.materials.oriented;
 
-import com.jozufozu.flywheel.backend.gl.buffer.VecBuffer;
 import com.jozufozu.flywheel.core.materials.BasicData;
 import com.jozufozu.flywheel.util.vec.Vec3;
 import com.mojang.math.Quaternion;
@@ -92,20 +91,5 @@ public class OrientedData extends BasicData {
 		return this;
 	}
 
-	@Override
-	public void write(VecBuffer buf) {
-		super.write(buf);
-
-		buf.putFloat(posX);
-		buf.putFloat(posY);
-		buf.putFloat(posZ);
-		buf.putFloat(pivotX);
-		buf.putFloat(pivotY);
-		buf.putFloat(pivotZ);
-		buf.putFloat(qX);
-		buf.putFloat(qY);
-		buf.putFloat(qZ);
-		buf.putFloat(qW);
-	}
 }