koobas.hobune.stream
Script generated mesh with blendshapes gets messed up when uvs are added
I'm creating a mesh asset using an editor script. I just create a mesh with new Mesh(), set mesh.vertices, mesh.triangles, mesh.normals, and add a bunch of blendshapes using mesh.AddBlendShapeFrame() (adding in a weight of 1, and the delta vertices and normals, and setting delta tangents to null). This works as expected. However, once I set mesh.uv, everything is messed up on the blendshapes. The default mesh looks fine, but once I add some weight to one of the blendshapes, the uvs AND the vertex positions get messed up, so somehow adding uvs is changing the delta vertices of the blendshapes? I dunno what's going on. I tested it on a standard material to be sure my custom shader wasn't the problem.
