implement Plane.js, add to common.js and update Frustum.js to use it instead of Vector4 - issue #2706

This got broken after GeometryLoader got removed, using instead JSONLoader.

Another step towards WebGLDeferredRenderer. It's still quite a mess but at least now code lives outside of the examples (and is reusable, to a degree).

These are first steps toward WebGLDeferredRenderer. This will take a while.

Not needed now that these are in G-Buffers.

This allows to have different per-object Phong materials in deferred shading.

To use FBX converter you must now install FBX SDK Python bindings yourself from here:

http://usa.autodesk.com/adsk/servlet/pc/item?siteID=123112&id=10775847

See #2686

Using vec3 <=> float conversions from @benaadams

For the moment just testing how it works (had to fix blending in WebGLRenderer for this). Seems with two RGBA float passes we could eventually get quite decent material range.

See discussion in https://github.com/mrdoob/three.js/commit/d951fcbcfa8efa8b7cecc10075e5e78be4027bac

This happens when you use MeshFaceMaterial for a single material model (that's what was going on in Lucy example).

Alternatively, we could set face.materialIndex by default to 0 instead of "undefined". This kinda makes sense, just would need to be checked if it wouldn't break things.

This was causing a major headscratching in deferred rendering where I just couldn't get rid of data alpha seeping into color channels.

Watch out for unexpected changes. I believe NoBlending is correct for opaque pass, but there could be some demos that depend on incorrect behavior with NormalBlending (getting transparency without setting "material.transparent" flag).

Most likely troubles could come from using transparent PNGs without setting "material.transparent".

So far these work:
new THREE.Color( 'rgb(255,0,0)' );
new THREE.Color( 'purple' );
new THREE.Color( 0xff0000 );

This is in anticipation of combining more geometry passes, need modifiable shader.

These replace frontFaceDirection parameter strings in renderer.setFaceCulling( cullFace, frontFaceDirection ):

"cw"  => THREE.FrontFaceDirectionCW
"ccw" => THREE.FrontFaceDirectionCCW

See related cullFace constants changes in #2683

Default value THREE.CullFaceFront, other valid value THREE.CullFaceBack.

These constants also go into renderer.setFaceCulling( cullFace, frontFace ) where they replace strings:

"back"  => THREE.CullFaceBack
"front" => THREE.CullFaceFront
"frontback"    => THREE.CullFaceFrontBack
""/0/undefined => THREE.CullFaceNone

See discussion in #2683

Default value is THREE.BackSide (use backfaces of objects when rendering depth map), other valid value is THREE.FrontSide (use frontfaces of objects when rendering depth map).

See discussion in #2683

Specular parameters will eventually need to go into G-buffer.

Started with extraction of deferred shading code snippets into more reusable components.

Before base class attributes that weren't in the constructors were not cloned properly in derived classes.