DR-GS: Physically-Based Deformable and Relightable 2D Gaussians

DR-GS proposes a more physically grounded take on 2D Gaussian splatting for deformable assets. Instead of treating appearance as a baked snapshot, it explicitly disentangles geometry, lighting, and material, so the same asset can be deformed and relit without falling apart visually.

That matters because a lot of GS-based deformable reconstruction still struggles once lighting changes or the object moves away from the captured pose. The paper calls out two common problems: illumination getting baked into textures, and snapshot-style reconstruction limiting later material edits. DR-GS is meant to address both in one pipeline.

The authors say the method preserves reflections and specular highlights on glossy surfaces better than prior approaches, while also supporting post-reconstruction parameter editing. In practical terms, that could be useful for virtual production, VR/AR asset creation, and any pipeline where artists want to tweak materials after capture instead of redoing the whole reconstruction.

This is still an arXiv paper, submitted on 28 Jun 2026, so it’s research rather than a shipping tool. But the direction is interesting for engine and rendering folks because it pushes Gaussian splatting closer to a proper inverse-rendering workflow instead of a purely appearance-driven reconstruction trick.