Gsplat

**Full Changelog**: https://github.com/nerfstudio-project/gsplat/compare/v0.1.12...v0.1.13

What's Changed
* Add backward gradient for background by KevinXu02 in https://github.com/nerfstudio-project/gsplat/pull/170
* enable doc versioning by liruilong940607 in https://github.com/nerfstudio-project/gsplat/pull/185
* Fix version value for Sphinx by brentyi in https://github.com/nerfstudio-project/gsplat/pull/191
* Improve numerical stability of _torch_impl.project_cov3d_ewa by oseiskar in https://github.com/nerfstudio-project/gsplat/pull/182
* Update project_pix to use eps by SimonF24 in https://github.com/nerfstudio-project/gsplat/pull/192
* create JIT compilation configs if necessary by ychfan in https://github.com/nerfstudio-project/gsplat/pull/164

New Contributors
* KevinXu02 made their first contribution in https://github.com/nerfstudio-project/gsplat/pull/170
* SimonF24 made their first contribution in https://github.com/nerfstudio-project/gsplat/pull/192
* ychfan made their first contribution in https://github.com/nerfstudio-project/gsplat/pull/164

**Full Changelog**: https://github.com/nerfstudio-project/gsplat/compare/v0.1.11...v.0.1.12

What's Changed
* Fast SH implementation by jb-ye in https://github.com/nerfstudio-project/gsplat/pull/165
* return result array for lower sh degrees by YertleTurtleGit in https://github.com/nerfstudio-project/gsplat/pull/171
* Implement AbsGS by liruilong940607 in https://github.com/nerfstudio-project/gsplat/pull/166

New Contributors
* YertleTurtleGit made their first contribution in https://github.com/nerfstudio-project/gsplat/pull/171

**Full Changelog**: https://github.com/nerfstudio-project/gsplat/compare/v0.1.10...v0.1.11

What's Changed
* Fix missing +0.5 in calculating uv coordinate by jb-ye in https://github.com/nerfstudio-project/gsplat/pull/151
* Check for normalized quats. by Mxbonn in https://github.com/nerfstudio-project/gsplat/pull/155

New Contributors
* Mxbonn made their first contribution in https://github.com/nerfstudio-project/gsplat/pull/155

**Full Changelog**: https://github.com/nerfstudio-project/gsplat/compare/v0.1.9...v0.1.10

What's Changed
* Small CUDA changes for nd rasterization by kerrj in https://github.com/nerfstudio-project/gsplat/pull/144
* Remove redundant projection matrix by oseiskar in https://github.com/nerfstudio-project/gsplat/pull/97
* Approximate view matrix gradient for pose optimization by oseiskar in https://github.com/nerfstudio-project/gsplat/pull/127

New Contributors
* oseiskar made their first contribution in https://github.com/nerfstudio-project/gsplat/pull/97

**Full Changelog**: https://github.com/nerfstudio-project/gsplat/compare/v0.1.8...v0.1.9

What's Changed
Some quality improvements because of:

* Fix v_mean3d in project_g and v_conic calculation in *rasterize_backward by jb-ye in https://github.com/nerfstudio-project/gsplat/pull/139
* add backprop grad of opacity compensation by jb-ye in https://github.com/nerfstudio-project/gsplat/pull/140


**Full Changelog**: https://github.com/nerfstudio-project/gsplat/compare/v0.1.7...v0.1.8