mrdoob/three.js — pull request #4607 by eric79 (2014-03-25 21:51:25+00:00)
Title: Add support to collada loader for all 4 opaque modes

Note: this changes the default transparency behavior (be sure to call it out in release notes - some collada files may need to change)

This change should bring us in line with the [collada 1.5.0 spec](http://www.khronos.org/files/collada_1_5_release_notes.pdf) - see pg 16.

This does have an effect on two of the examples:

- `loader / collada / keyframe` shows a little gray tesselated sphere at the center of the scene that used to be transparent
- `loader / collada / skinning` shows some specular hotspots on the character that weren't there before. That one baffles me. @tparisi, do you have any idea why that might have happened?