📦 Bundle size

Full ESM build, minified and gzipped.

🌳 Bundle size after tree-shaking

Minimal build including a renderer, camera, empty scene, and dependencies.

@mrdoob I'm already very close to the IBL expected result in WebGPU for Equirectangular Textures.

WebGPU	WebGL

Textures

One thing has been bugging me for a while, it seems we have a texture configuration policy in three.js. Texture settings are often tweaked overriding the defined settings automatically. I'll give you an example:

The settings are:

texture.minFilter = THREE.LinearFilter;
texture.generateMipmaps = false;
//texture.needsPMREMUpdate = false;

Texture settings are converted to

texture.minFilter = THREE.LinearMipmapLinearFilter;
texture.generateMipmaps = true;
//texture.needsPMREMUpdate = true;

This is something I'm going to implement it texture configuration policy in the WebGPU to maintain backwards compatibility I think... I don't know if we can change that at this point, or if there is one description to this somewhere that I haven't noticed.

/cc @mrdoob @Mugen87 @LeviPesin

Is this the line you're referring to?

I think that would be it:

Both Equirectangular*Mapping and Cube*Mapping are converted to PMREM, as normally IBL relies on mipmaps whether prefiltered or not, the descriptions I wrote in the previous post about replace the settings automatically I think it's closer to the original intention or expectation since the user would not have access to the PMREM texture. I think that we could say that Equirectangular*Mapping and Cube*Mapping are the predominant settings.