Blender Blendshapes flickering in Unity

Questions & Answers
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1

Hi.

I rigged, on Blender, a character with some blendshapes on the face. When I try to import the .fbx into Unity and play some animation clips I did on Blender the geometry flickers.

What’s happening and how to solve that?

Thanks.

Animation

2

It seems that normals are slightly modified around the vertices that are moved on the ShapeKeys and this can cause this problem. The quick fix might be to make Unity recalculate the asset normals instead of importing this into the model import settings.