Q: set/draw vertex colors of a mesh?

Rendering
1

Hi…,

is it possible to set/draw vertex colors of a mesh?

Thanks

Michael

2

Rendered mode will draw meshes with their vertex colors if they exist.

To set there are not many options. I think there is a ComputeVertexColors command. Other than that use either Grasshopper or write a script to set vertex colors.

3

Hi @jesterKing,

yes, I’ve seen _ComputeVertexColors and some Grasshopper topics.

All to complicated for me, I would like to use a simple set/draw command. Perhaps a topic for your wishlist.

Thanks

Michael

4

This should do it when your mesh has a texture mapped to it.

5

Yes, but I have no texture, I want to set this manually. In the end I would need vertex colors for Marmoset Toolbags Bevel shader: Revolutionize Your 3D Workflow with Toolbag's Bevel Shader | Marmoset Toolbag

6

I personally would just use Blender to do the vertex painting.

7

Yes, this would work, but I don’t want to deal with too much programs.

8

There currently isn’t just a good vertex painting facility in Rhino as far as I know. And instead of waiting for something to materialize you can do the work already now.

9

In grasshopper you can set the vertex colors per vertex by deconstructing and reconstructing the same mesh:

Screenshot 2025-11-18 at 19.25.35
Screenshot 2025-11-18 at 19.25.35491×264 18.3 KB

You could “paint” the vertex selection in Rhino and then color the selected vertices in Grasshopper? This is a little convoluted, but should work.