Issues

• MCMC + 3DGUT with ~200° fisheye (OPENCV_FISHEYE): training loss doubles after ~2k iterations, giant Gaussians cover test views

  nv-tlabs/3dgrut#274 · Filter by author Earicplanescape opened on Sep 21, 2026

• 3DGRUT support policy — best-effort, no SLA (please read first)

  nv-tlabs/3dgrut#266 · Filter by author wilsonCernWq opened on Jul 23, 2026

• install_env_uv.sh fails in conda environment because CUDA_* and UV_* environment variables are not initialized

  nv-tlabs/3dgrut#264 · Filter by author Koki-Hayasaka opened on Jul 10, 2026
  1

• USDZ exported during training (with cameras) renders nothing in Isaac Sim 5.1, while ply_to_usd export (export_cameras=False) from the same checkpoint works

  nv-tlabs/3dgrut#262 · Filter by author hms-gymnopedie opened on Jul 4, 2026

• Is the srgb_rec709_display an accurate description of the colorspace?

  nv-tlabs/3dgrut#259 · Filter by author swahtz opened on Jun 30, 2026

• Missing #running-with-docker in README.md

  nv-tlabs/3dgrut#256 · Filter by author yamada-sexta opened on Jun 16, 2026

• Support for Gaussians deforming with physics (soft body / MPM)?

  nv-tlabs/3dgrut#252 · Filter by author ChangjingLiu opened on Jun 3, 2026

• Missing map.xodr (OpenDRIVE) and related map metadata for USDZ-exported scene in CARLA-NuRec pipeline

  nv-tlabs/3dgrut#250 · Filter by author beenn opened on May 19, 2026

• can't see anything in isaacsim after load the usd(usdz) file,but playground.py runs normally and get correct scene.

  nv-tlabs/3dgrut#246 · Filter by author Michelangelo-Y opened on May 11, 2026
  2

• Bug Report: fused_ssim_cuda ImportError – undefined symbol on Turing GPU

  nv-tlabs/3dgrut#245 · Filter by author Lumos-424 opened on May 7, 2026

• Black rendering and 0.00 output on Turing (RTX 20-series) GPUs

  nv-tlabs/3dgrut#244 · Filter by author eliund3rwood opened on May 6, 2026

• Severe Surface Spikes and Blurring in 3DGS Reconstruction

  nv-tlabs/3dgrut#238 · Filter by author SimonWang404 opened on Apr 27, 2026
  1

• VR experience with usdz & Isaac

  nv-tlabs/3dgrut#224 · Filter by author Ziefen-Chou opened on Apr 2, 2026
  2

• Questions about the implementation of BVH for 3DGRT

  nv-tlabs/3dgrut#221 · Filter by author 12hyhy12 opened on Mar 31, 2026

• Isaac Sim failed to load exported usdz file

  nv-tlabs/3dgrut#220 · Filter by author tongsky723 opened on Mar 31, 2026
  4

• What exactly is 3dgrut, and how do I use it in practice?

  nv-tlabs/3dgrut#217 · Filter by author xjubep opened on Mar 25, 2026

• cudaErrorIllegalAddress in renderBackward on GB10 (SM_12.1 / Grace Blackwell)

  nv-tlabs/3dgrut#204 · Filter by author revl-rrorg opened on Mar 19, 2026
  1

• exported to usdz - doesn't receive light in omniverse?

  nv-tlabs/3dgrut#196 · Filter by author antithing opened on Mar 4, 2026
  2

• Mesh physic

  nv-tlabs/3dgrut#192 · Filter by author edwuvolumes opened on Feb 15, 2026
  3

• Training failed at 19%

  nv-tlabs/3dgrut#191 · Filter by author edwuvolumes opened on Feb 13, 2026
  1

• Add a light in threedplayground viewer?

  nv-tlabs/3dgrut#181 · Filter by author antithing opened on Jan 15, 2026

• ISAAC Sim renders 3DGS with striped artifacts.

  nv-tlabs/3dgrut#176 · Filter by author CoderMoYao opened on Dec 15, 2025
  1

• 3DGUT: “Initialize Model ” no reply

  nv-tlabs/3dgrut#174 · Filter by author JCpeny opened on Dec 10, 2025
  2

• Whenever I try to visualize through the GUI, I get this error.

  nv-tlabs/3dgrut#171 · Filter by author vanstrong12138 opened on Nov 20, 2025
  1

• Error while running from docker components

  nv-tlabs/3dgrut#170 · Filter by author viktorho opened on Nov 13, 2025