Provide motion vector to deforming mesh renderer

[Qleenie]

Hi, I’d like to render a deforming mesh to a mesh renderer, and would like to also provide motion vectors, similar to “skinned motion vectors” in SkinnedMeshRenderer.

Is this possible to do this? I only see options for object or camera motion vectors. My deformation and motion vectors get calculated in a Compute Shader.

[Qleenie]

Found a way to do it, don’t know if this is the simplest way:

• Set compute buffer to material,
• add custom function node in shader graph,
• read buffer in custom function, write to Velocity Input of Vertex Stage (after turning on “Add Custom Velocity”), and
• turn “custom vector for vertex animation” on in Material.

Is there an easier way?

[icauroboros]

@Qleenie

Found a way to do it, don’t know if this is the simplest way:

• Set compute buffer to material,
• add custom function node in shader graph,
• read buffer in custom function, write to Velocity Input of Vertex Stage (after turning on “Add Custom Velocity”), and
• turn “custom vector for vertex animation” on in Material.

Is there an easier way?

Did you manage to find better way?

[Qleenie]

@icauroboros

Did you manage to find better way?

nope, doing it like I described. feels hacky, but it at least works…