Summary: This diff implements the inverse of D28992470 (8006842f2a): a function to extract OpenCV convention camera parameters from a PyTorch3D `PerspectiveCameras` object. This is the first part of the new PyTorch3d<>OpenCV<>Pulsar conversion functions.
Reviewed By: patricklabatut
Differential Revision: D29278411
fbshipit-source-id: 68d4555b508dbe8685d8239443f839d194cc2484
Summary: Implements a conversion function between OpenCV and PyTorch3D cameras.
Reviewed By: patricklabatut
Differential Revision: D28992470
fbshipit-source-id: dbcc9f213ec293c2f6938261c704aea09aad3c90