Still unsolved: how to pass custom parameters to such loaders.

See discussion: https://github.com/alteredq/three.js/commit/5c43e9467c9d7ce9682d684f6a753a85449e58b2

Not really sure what would be the best way to deal with such external loader types dependencies.

Thanks to @jeromeetienne for finding this. Fixes #2381

Also extended example to show this.

Transplanted hemisphere specular from Phong. Also had to go back to using varying for view position as computing it in the fragment shader wasn't really working :S

This is all just guessing. Other people have only diffuse term for hemisphere lights, but there should be also some specular term, in real world shiny things are shiny no matter which light.

Moved colors, bumpScale, shininess and anisotropy parameters from lightmap example code to its JSON file.

Use two component normalScale and set eventual flipping per-model. It's quite ugly but it could do the job if we don't find a better solution.

Do not merge yet.

See #2358

Required some tweaking to CanvasRenderer material logic.

Thanks to @toji for blog post and DDS utilities.

Fixes #2348

TODO: example textures for alpha formats (DXT3, DXT5).

See #2349

Particles are rendered using drawArrays, so there is no need for indices or offsets.

Particle sorting not implemented for BufferGeometry, will need to check if this is possible to do efficiently.

Normal maps store the perturbation of the surface normal (vector field), as opposed to bump maps, which are height fields (scalar field).

See #2352

Work-in-progress, don't merge yet.

All examples should work now.

The only weird thing seems to be that for some reason bone texture doesn't like to be assigned to arbitrary texture unit (or more precisely to alternating texture units).

See #2340

As discussed in #2340

Do not merge yet, this is not finished.

Uhm, some day it would be nice to rewrite all this Shape/Path/Curve/CurvePath code...

Fixed standard materials shaders to use properly transformed positions and normals with skinning and morphing.

Also while at it I did some shader snippets cleanup and optimizations here and there.

There were quite drastic changes, impacting almost everything. It should work, I went through all WebGL examples, but you never know, there are myriads of possible material combinations. Please let me know if you find something broken.

See #2336

Now it doesn't throw exception but still doesn't work ok, there are freaky artefacts.

Fixed bug in CanvasRenderer where it would try to render a smooth shaded face even if mesh had no vertex normals.