# Threejs WebGPU Light Probes Grid + SSGI - Technical Breakdown

> Since using probes is a very technical subject and difficult to understand without visual examples, I decided to create a video with an exaggerated example…

Canonical page: https://andersonmancini.dev/videos/threejs-webgpu-light-probes-grid-ssgi-technical-breakdown

Published: 2026-05-27 · Duration: 2:42 · Category: Tutorials · Tags: three.js, webgpu, tutorial, post-processing, threejsjourney, creativecoding

Watch: [YouTube](https://www.youtube.com/watch?v=iklqjgIpVG8) · [Subscribe to the channel](https://www.youtube.com/@AndersonMancini?sub_confirmation=1)

Since using probes is a very technical subject and difficult to understand without visual examples, I decided to create a video with an exaggerated example to show the incredible results that MrDoob work with probes can provide.

As you can see in the video, the hybrid solution of probes with SSGI blends the best of both worlds: projected lights when the objects emitting the color are in the scene, and indirect light provided by the probes when they are not.

Of course, nobody is going to use red and green walls at home lol. This is just a visual example to exaggerate the use and demonstrate how the technology works from a creative point of view.

I hope it helps someone .

## Related projects

- [Lumen Decor Studio 1](https://andersonmancini.dev/projects/lumen-decor-studio-1.md) — SSGI interior visualization with WebGPU