The Assimp library does not expose the FBX control point indices. This
change causes vertices that are close enough in their position to be
considered as coming from the same control point. This allows the mesh
optimizer to consider vertices with the same control point index (or
"original vertex index" as it is called in the code) for deduplication.
Signed-off-by: Chris Burel <burelc@amazon.com>
Chris Burel
e4e1946018