f6a58489b8
WebGPU rejects block-compressed textures whose base dimensions aren't multiples of 4; three's KTX2Loader only warns and transcodes anyway, so a baked GLB carrying one odd-sized user-item texture (e.g. 299x399) poisoned every render pass — endless 'Invalid BindGroup … Invalid CommandBuffer' spam. Route such payloads through a fallback transcode to uncompressed RGBA32 and repackage the pixels as a plain DataTexture (three's WebGPU upload path crashes on a CompressedTexture holding rgba8 data). Co-authored-by: Claude Fable 5 <noreply@anthropic.com>