I'm trying to import a mesh out of 3dsMax into UDK and running into corruption issues. I have a highly detailed mesh to begin with so I'm scaling it way down in 3dsMax using ProOptimizer to under the UDK vertices ceiling. What's weird and where I'm running into a problem is that UDK corrupts any mesh I import into it that has been ProOptimized more any less than 90%. Optimizing and reducing the polys on the original mesh in 3ds by 90% or more imports fine into UDK but any less than that and I get crazy looking corrupted meshes in UDK. While 90% or more works it's a bit too low poly for my tastes so I'd like to get this figured out.
Image of the meshes in UDK after being ProOptimized and exported out of 3dsMax as FBX. From left to right: 90% optimization looks fine, 89% has some corruption, 75% has a ton of corruption.
Thoughts on WTF is happening here? Everything looks great in 3ds.