1916072 - ThreeJS' examples' WebGPU backend don't work

Status: NEW

(Core :: Graphics: WebGPU, defect)

Comment 1

[Erich Gubler [:ErichDonGubler]]

Blockers I observed:

• The vast majority of examples are blocked by failing to parse diagnostic directives (bug 1882800).
• Many examples emitted errors because the GPUDevice.createQuerySet API is not yet exposed (bug 1838729). Many of these crashed after these errors were emitted many times over a few seconds. 😬
• Automatic type conversion (bug 1829879)
• compute / particles / snow / external seems to fail on a CORS error. 😳 Not sure if that's a bug on our end yet.
• compute / texture / pingpong has some issues with a writeTex: texture_storage_2d<rgba16float, write> argument, not sure why yet.
• Many examples emitted errors with GPUQueue.copyExternalImageToTexture: 'source' member of GPUImageCopyExternalImage could not be converted to any of: ImageBitmap, HTMLCanvasElement, OffscreenCanvas..
• loader / gltf / compressed and many others emitted this error: GPUDevice.createTexture: 'etc2-rgb8unorm-srgb' (value of 'format' member of GPUTextureDescriptor) is not a valid value for enumeration GPUTextureFormat.

Comment 2

[Erich Gubler [:ErichDonGubler]]

Ah, the texture_storage_2d<…, write> error must be that our implementation of WGSL doesn't yet support the readonly_and_readwrite_storage_textures extension. Filed bug 1916464 to track this.