Pytorch3d: Camera's BUG: when I set elev=90 or 270

[qmlu-cn]

when I set elev = 90 or 270, the result is a line.

self.elev=90
self.azim=0
R, T = look_at_view_transform(self.dist, self.elev, self.azim, device=self.device,at=at) 
self.cameras = FoVPerspectiveCameras(device=self.device, R=R, T=T)
std_image = self.renderer(std_mesh, cameras=self.cameras)

[albertotono]

Do you have this warning?

 /usr/local/lib/python3.6/dist-packages/pytorch3d/transforms/transform3d.py:707: UserWarning: R is not a valid rotation matrix
  warnings.warn(msg)

as workaround I used 89.9999

[nikhilaravi]

Which version of PyTorch3D are you using? Are you installing from conda or Github? This issue should have been fixed by https://github.com/facebookresearch/pytorch3d/commit/eb517dd70b20c8431a1cfc46e47b4c5c78529c5b. One possibility is that you need to increase the tolerance on this line: https://github.com/facebookresearch/pytorch3d/blob/30e4e891dbbccb6b9ca416182e70187eaced71a0/pytorch3d/renderer/cameras.py#L1232

[qmlu-cn]

Do you have this warning?

 /usr/local/lib/python3.6/dist-packages/pytorch3d/transforms/transform3d.py:707: UserWarning: R is not a valid rotation matrix
  warnings.warn(msg)

as workaround I used 89.9999

Yes

[qmlu-cn]

Which version of PyTorch3D are you using? Are you installing from conda or Github? This issue should have been fixed by eb517dd. One possibility is that you need to increase the tolerance on this line:

https://github.com/facebookresearch/pytorch3d/blob/30e4e891dbbccb6b9ca416182e70187eaced71a0/pytorch3d/renderer/cameras.py#L1232

I'm using PyTorch3D 2.5. And I installed it from conda. Thank you for your reply. I have fixed this problem.