koobas.hobune.stream
Why are there visible artifacts in my imported geometry?
When I import this mesh into Unity I get ugly visible artifacts splotches on the surface: 
Here I use a matte red-ish material and the black and grey crud is clearly visible. What is happening here? How do I fix this?
you can try the calculate normal setting on import. if the ugly stuff vanishes it's a problem with the normals.
I calc normals and tangents in mesh import.
I used Blender to inspect the data and look for things - inverted normals, etc. - to clean up but saw no issues.
Also, this model renders fine in an iOS/Metal app I wrote using Xcode.
