Paul Wais

you're right, the cited code in nerfstudio is not equivalent to the cited multinerf code.. at least not the precise cited lines. The cited conversion appears to do a handedness...

but in opengl camera, -z is forward / look at. yet cast rays have positive lengths. So isn’t that transform a handedness change, then a flip of z? if you...

as i originally instigated this issue, i vote that https://github.com/nerfstudio-project/nerfstudio/pull/2793 effectively closes this one. @jkulhanek any thoughts?

Actually I think @jb-ye https://github.com/nerfstudio-project/nerfstudio/pull/2793 might have a bug? when `assume_colmap_world_coordinate_convention` is off, the camera poses read from colmap will change: https://github.com/jb-ye/nerfstudio/blob/8b4179fad405f1203fcfc973cad69ee051d40132/nerfstudio/data/dataparsers/colmap_dataparser.py#L163 BUT the world cloud will not change as...

@jb-ye but for methods like gaussian splatting, the world frame of the 3d points needs to be the same world frame referenced by the camera transforms, no? fwiw somebody was...

> Those options are reserved for the case when you want to keep the orientation of colmap world when exporting ply file Maybe the flag and functionality should just move...

@jb-ye The current issue with frames etc (and especially the really poor naming e.g. "transformation_matrix" that hides the actual frame name) has lead to a lot of confusion on Discord...

+1 There is also a `ZeroDivisionError` in `download_dataset.py` (line 138) if the download fails like this.

@davnov134 Happy Summer Holiday! The bugs here are: 1) The website generating the 51-line text links file appears to be broken. The urls are all expired. Perhaps it's generating a...

hmm looks like I had some connection issues. the download script still doesn't work for me tho. the selenium script does help a lot!!