Skinning pass on skinned mesh renderer

Unity Engine
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1

I am trying to a achieve a smearing effect (example) on meshes and I am doing it via compute shader. While it works fine for a normal mesh. I can’t get it to work on a skinned mesh. The skinning process seems to overwrite all changes done by the compute shader. Is there any way to execute my compute shader after the skinning process?

2

I did some more digging and after installing RenderDoc I noticed that my compute shader allegedly has no bytebuffer set. Even though I set the buffer in LateUpdate.
Late Update Code

private void LateUpdate() {
        GraphicsBuffer vertexBuffer = null;
        if (renderer.vertexBufferTarget.HasFlag(GraphicsBuffer.Target.Raw)) {
            vertexBuffer = renderer.GetVertexBuffer();

            shader.SetBuffer(kernelID, "vertices", vertexBuffer);
            shader.SetInt("stride", vertexBuffer.stride);
            shader.SetInt("vertexCount", vertexBuffer.count);
        } else {
            Debug.LogWarning("Vertex buffer isnt set as raw!");
        }

        shader.Dispatch(kernelID, Mathf.CeilToInt(renderer.sharedMesh.vertexCount / 256f), 1, 1);
        if (vertexBuffer != null) vertexBuffer.Dispose();
    }

RenderDoc

8727546--1180692--renderdoc.png
8727546--1180692--renderdoc.png1287×365 16.7 KB

3

Turns out GPU skinning was turned off. I assumed it was on. Turning it back on fixed the issue.

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