Crashes in what way?
LoadMesh and LoadAnimMesh return 0 if they fail (i.e. if the file doesn't exist) - they won't be causing your program to crash unless there's something wrong with the B3D files themselves.
LoadMesh and LoadAnimMesh return 0 if they fail (i.e. if the file doesn't exist) - they won't be causing your program to crash unless there's something wrong with the B3D files themselves.