assimp/assimp — pull request #60 by YoheiKakiuchi (2013-07-27 01:44:39+00:00)
Title: IGNORE_UP_DIRECTION for not transforming point of vertices

For using collada mesh, somethimes converting UP_DIRECTION is not needed.
So, for avoiding transform points, using raw points directly, I add AI_CONFIG_IMPORT_COLLADA_IGNORE_UP_DIRECTION.