nv-tlabs/3dgrut

Health v2 · maintenance only

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2390 stars · 278 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

NVIDIA's official implementations of 3D Gaussian Ray Tracing (3DGRT) and 3D Gaussian Unscented Transform (3DGUT), which render volumetric Gaussian particles via ray tracing, rasterization, or a hybrid of both. It supports distorted cameras, time-dependent effects like rolling shutters, and secondary ray effects such as reflections, refraction, and shadows.

Use cases

• render 3d gaussian splatting scenes with ray tracing
• train gaussian splatting models with distorted fisheye cameras
• handle rolling shutter effects in 3d reconstruction
• render reflections and shadows in gaussian splat scenes
• hybrid rasterization and ray tracing of particle scenes
• reconstruct 3d scenes from video with rolling shutter

When to choose

• you need secondary ray effects like reflections, refraction, or shadows with gaussian splatting
• your capture cameras have distortion or rolling shutter artifacts
• you have NVIDIA RTX hardware and want research-grade gaussian ray tracing
• you want to combine rasterization speed with ray tracing flexibility

When to avoid

• you need a fast, production-ready general gaussian splatting framework - use gsplat instead as the authors recommend
• you lack dedicated ray-tracing GPU hardware and only need basic splatting
• you need a plug-and-play viewer rather than a research codebase

Facets

library · maturity active

graphics computer-vision image-processing simulation computer-vision graphics machine-learning python windows gaussian-splatting ray-tracing 3d-reconstruction neural-rendering nvidia cuda siggraph gpu linux

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