Compressed textures (Eg DDS/crunch) not supported by ObjectLoader

[erno]

There is also no obvious place make this happen in your own code, short of
modifying ObjectLoader.

Currently the code uses ImageLoader which doesn't handle compressed textures.
A possible approach could be a new autodetecting image loader that could use
ImageLoader or DDSLoader (or PVR or ...) depending on type of image data encountered,
and a corresponding change in parseTextures
where it calls into the new loader for the Texture or CompressedTexture instance.

[antont]

any ideas here? am reading ObjectLoader and its use of ImageLoader to see how it goes now and perhaps find some way to add support for compressed ones

[antont]

tested by hacking ObjectLoader in a separate test copy ('ObjectLoaderDDS') back then.

happened to see this niceness in obj & mtl loading example now:

THREE.Loader.Handlers.add( /\.dds$/i, new THREE.DDSLoader() );

https://github.com/mrdoob/three.js/blob/dev/examples/webgl_loader_obj_mtl.html#L88

[Mugen87]

Merged into #17974.