Added a bound check for vertex deform groups on export

tangent-opensource / blender

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Added a bound check for vertex deform groups on export #3

Closed tangent-trevor closed 3 years ago

tangent-trevor commented 3 years ago

This should solve the crash that happened when the MDeformWeight->def_nr was greater than the number of bDeformGroup structs associated with the object. I was unable to determine the scenario that created these conditions but this logic should be identical to how their internal code handles it (see BKE_defvert_find_index).