Jeremy Reizenstein 1251446383 Use sample_pdf from PyTorch3D in NeRF
Summary:
Use PyTorch3D's new faster sample_pdf function instead of local Python implementation.

Also clarify deps for the Python implementation.

Reviewed By: gkioxari

Differential Revision: D30512109

fbshipit-source-id: 84cfdc00313fada37a6b29837de96f6a4646434f
2021-08-31 11:26:26 -07:00
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