GR3EN Relighting Studio

GR3EN (SIGGRAPH 2026) is a generative relighting model: give it a video, tell it which light sources to turn on, off, or recolor, and it re-renders the whole video under the new lighting.

arXiv · Project Page · Code · Model

How to use

  1. Upload a video — or click an example scene at the bottom of the page.
  2. Click each light source in the frame; SAM 2 segments it automatically. Use New light to add the next one.
  3. Set each light: pick a color, choose On / Off / No change, adjust intensity, then render the control mask.
  4. Relight — one run, or ×5 for five random-seed variations. A run takes under 30 seconds on ZeroGPU.

Paper scenes come with ready-made light masks and jump straight to step 3.

This is not an official Google product.
1Upload
2Select lights
3Configure lights
4Relight
Upload a video to begin
Working resolution — lower is recommended for speed

Assets used in the paper (Eyeful dataset)

Video + palette mask included — click one to jump straight to light configuration.

More scenes — input only (RE10K · robotics · ego-centric)

No mask included: clicking loads the video and you select the lights yourself with SAM2.