Shader can take time to compile at first (~20s). It can freeze browser during that delay, don't panic 🙂.
/!\ WIP, see TODO below
Use mouse to move camera and keys (WASD/ZQSD + CTRL + SHIFT) to navigate through scene.
Not supported on phones.
Fix imperfect handling of pdf for specular
Some GPU do not compute sphere visibility properly which introduces a bias for iterative