People who want to build this branch will need update their OpenCollada. On Linux OpenCollada builds without patching. As usual I updated the build doc: http://wiki.blender.org/index.php/User:Kazanbas/Building_Collada_Branch#Building_the_COLLADA_GSoC_branch A small change will be necessary in cmake and scons options on Mac and Windows: OpenCollada's libBuffer was renamed to libbuffer.