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assimp / assimp

The official Open-Asset-Importer-Library Repository. Loads 40+ 3D-file-formats into one unified and clean data structure.
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Bug: FBX number of bones quadrupled #5534

Closed UltraEngine closed 1 month ago

UltraEngine commented 1 month ago

It appears that the FBX loader quadruples the number of bones in the model. This will have a strong negative impact on rendering performance.

image png 0376435ce64edae91cbf6d82dc9ca898

For comparison, this is what our FBX converter produces: bones

tellypresence commented 1 month ago

Please attach or add links to model file(s) for investigation

UltraEngine commented 1 month ago

Apparently, there is a PRESERVEPIVOTS... setting to resolve this, but reading about that indicates that it introduces new problems of its own.