This mesh has texture colors which display correctly, but ComputeVertexColors doesn’t work: afterward when inspected in Grasshopper/DeconstructMesh there are no colors. If I export as .ply with vertex colors it works: when I re-import that file the mesh is colored by vertex. So Rhino is able to ass…

Hi Bathsheba - it seems to be related to the bitmap - other images or textures applied to the mesh reasult in vertex colors being assigned. And this image on other meshes fails. @Bathsheba it seems a workaround is to bring in the texture to the texture panel, make a new Custom material with that…

I tried opening the image in Photoshop and re-saving as 8-bit PNG, 24-bit PNG, and JPG; all failed. Weird. It’s like Rhino doesn’t like the colors, even though it can plainly read them perfectly well. I can’t seem to apply your workaround…I put an image in the texture panel, but when creating a cus…

We also have an open ticket at the moment to resolve some inconsistent behaviors we’re seeing. https://mcneel.myjetbrains.com/youtrack/issue/RH-77165/ComputeVertexColor-command-doesnt-appear-to-work

Thanks! My particular example still fails in 8.0.23276.13303.

Hi Bathsheba, I see that, thanks -Pascal

ComputeVertexColors fails on this mesh

Rhino Rhino for Windows

brian (Brian Gillespie) October 3, 2023, 10:44pm 5

RH-77165 is fixed in the latest BETA

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ComputeVertexColors fails on this mesh

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