READ THIS if you use vertex colors and have plans to update to Blender 4.1

Hello community!

Blender 4.1 has killed the possibility to export vertex colors to GLB if the mesh has no material assigned! Simply the COLOR_0 attribute is not exported.

We compress the exported GLB with an external tool and we thought the error comes from the tool. After a few hours of trial and error we traced it back to Blender.

We use vertex colors to fake AO maps:
image

Textures are assigned in babylon.js and the result is:

Hopefuly this tip can prevent you from pulling your hair out after facing the same issue and not able to solve it :smiley:

:vulcan_salute:

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This is the PR which killed it:

The community responses are quite negative. This one is LOL:

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