WebGPUBackend: Fix generateMipmaps() in texture layers

[sunag]

Related issue: Closes #29145

[github-actions]

📦 Bundle size

Full ESM build, minified and gzipped.

Filesize dev	Filesize PR	Diff
685.4 kB (169.7 kB)	685.4 kB (169.7 kB)	+0 B

🌳 Bundle size after tree-shaking

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

Filesize dev	Filesize PR	Diff
462 kB (111.4 kB)	462 kB (111.4 kB)	+0 B

[Spiri0]

wow, that was quick. I made the change locally in src/renderers/webgpu/utils/WebGPUTextureUtils.js to test it. Normally that's enough. Unfortunately, I still only see mipmaps for the first texture in the array. Do I need to pay attention to anything else?

[sunag]

Maybe be necessary build again three.webgpu.js

[Spiri0]

Ah I understand, since r167 with three.webgpu.js the node system has become a core part. You were right sunag. I just had to rebuild three.webgpu.js
Now it's working properly