Fixes mrdoob#19511 This is one potential approach for allowing GLTFLoader to utilize ImageBitmaps, which significantly reduce stalls in rendering when uploading textures to the GPU. Alternatively, if allowing a custom ImageLoader to be supplied to the TextureLoader is not desirable, we could use ImageBitmapLoader and CanvasTexture in this class directly when ImageBitmaps are supported and fallback to TextureLoader otherwise. The reason this is limited to GLTFLoader for now is that ImageBitmap-based textures don't support Y-flipping in the same way that the traditional approach does. If a workaround is figured out for that then ImageBitmaps could be used more widely.

Commits

Commits on Jun 9, 2020

Allow GLTFLoader to use ImageBitmapLoader

Applying @Mugen87's suggestion

Fix a lint error

Update js/loaders/GLTFLoader.js

Alternate way of implementing image bitmap support

Applying @Mugen87 's suggestion