no gradient propagation in info ["mean2d"] for forward rendering …
Jun 12, 2025 · I also occurred this, that is a bug in the 3dgut method. May I ask, besides ignoring the gradient of this variable, are there any other good solutions? Or should we just wait for the …
Viewmat gradient backward to optimize camera position
Feb 1, 2024 · In order to re activate camera pose opt in nerfstudio, I cherry pick the gradient backward proposed in branch : https://github.com/nerfstudio-project/gsplat/tree/vickie/camera …
Pose optimization for 2dgs? · Issue #546 · nerfstudio-project/gsplat
Hello, I happened to compare the pose optimization gradient between 3dgs and 2dgs. I found that viewmat has always 0.0 gradient. A minimal example can be found as blew.
Where is the gradient computation for camera poses …
May 7, 2025 · Where is the gradient computation for camera poses implemented in GSplat? #668 New issue Closed caikunyang
'Tensor' object has no attribute 'absgrad' #374 - GitHub
Aug 28, 2024 · It seems splitting info ["means2d"] modifies the custom gradient computation in the backwards pass that would normally happen with absgrad=True.
Question about the derivation of the view matrix gradient in paper
Jan 5, 2024 · I'm recently reading your paper (Mathematical Supplement for the gsplat Library) and have one question about the derivation of the view matrix gradient. I understand the …
Scale and normalization of means2d grad #298 - GitHub
Jul 23, 2024 · I have a question on implementation. In DefaultStrategy, GS growth is done with a comparison of a threshold and a gradient norm. The calculation of the gradient norm is finally …
numerical stability problem · Issue #248 · nerfstudio-project/gsplat
Jul 1, 2024 · I've checked the inputs and all the tensors are guaranteed to be not nan, but when I tried to calculate the gradient of render_outputs or alpha over gaussian params (e.g. scales), …
How to add custom backward gradients · Issue #465 - GitHub
Oct 24, 2024 · After a lot of trial and error I think the gradient is computing well now, however I still do not know a good procedure to tackle this task: how to modify/add the derivative in the …
scale_reg of MCMC strategy when training with with_ut
Oct 30, 2025 · It seems that when training with 3dgut, the gradient cannot flow to splats' scales. If we add scale_reg loss to splats, those splats will gradually shrink to a tiny scale, is this a …