Summary: Simplify finding the data directories in the tests.
Reviewed By: nikhilaravi
Differential Revision: D27634293
fbshipit-source-id: dc308a7c86c41e6fae56a2ab58187c9f0335b575
Summary: Make common functions for finding directories where test data is found, instead of lots of tests using their own `__file__` while trying to get ./tests/data and the tutorials data.
Reviewed By: nikhilaravi
Differential Revision: D27633701
fbshipit-source-id: 1467bb6018cea16eba3cab097d713116d51071e9
Summary: Implements the ascii OFF file format. This was discussed in https://github.com/facebookresearch/pytorch3d/issues/216
Reviewed By: theschnitz
Differential Revision: D25788834
fbshipit-source-id: c141d1f4ba3bad24e3c1f280a20aee782bfd74d6