3dgrut

Why we included this project

Developers and researchers in novel view synthesis will find the reference implementation here for rendering pre-trained 3D Gaussian scenes with a real choice of rendering strategy. The repo pairs two approaches to the same representation. 3DGRT traces rays through volumetric Gaussians, which handles distorted cameras, rolling shutters, and secondary effects like reflections and refraction, but it needs dedicated ray-tracing hardware and runs slower than classic splatting. 3DGUT keeps the same camera and effect support in a rasterization pipeline, so it stays fast on machines without RT cores. A hybrid mode, 3DGRUT, rasterizes primary rays and traces secondary ones. Practical touches are included too: interactive training progress viewers and an exported playground GUI with USD, PLY, and NuRec export. The honest trade-off is the hardware bill, so teams weighing render quality against throughput should plan their GPU budget before adopting the ray-traced path.