Possible code errors in raster settings

[tb2-sy]

In line 52 of gaussian_renderer.py, camera_center = torch.linalg.inv(extr)[:3, 3]seems to be changed to camera_center = torch.linalg.inv(extr)[3, :3], although judging from the results It seems to have little impact.

[lizhe00]

torch.linalg.inv(extr)[3, :3] is zero, because the translation vector is at the upper right corner of extr. You can print both torch.linalg.inv(extr)[:3, 3] and torch.linalg.inv(extr)[3, :3] to check them.

[tb2-sy]

torch.linalg.inv(extr)[3, :3] is zero, because the translation vector is at the upper right corner of extr. You can print both torch.linalg.inv(extr)[:3, 3] and torch.linalg.inv(extr)[3, :3] to check them.

Thanks for the reply. I made a mistake. The code is torch.linalg.inv(extr)[:3, 3] instead of using the transposed world_view_transform to find the inversion.