Object has degenerate base on import and grainy overlapping meshes

Development Platform & Builds
, , ,
1

![![![![![![alt text][1]][1]][1]][1]][1]][1]I imported a mesh from sketchup to UE4 as an fbx file and got the following warning: object has degenerate tangent bases.
Following that, when building the light, there was this overlapping grainy look to the mesh, I’m not sure if this is related to the import problem too.

Thanks in advance!

2

The warning is most likely it is related to your unwrap on UV channel 0. For proper display every object should have proper UV unwrap on channel 0.

3

Thank you for your answer. Sorry, as I’m new to UE4, would appreciate it if you could explain how to do the proper UV unwrap on channel 0? Do I do it in another 3d program? Thanks!