How to: Use FBX File?
Currently cocos support .c3b/.c3t/.obj files. If you want to use .fbx files, you need to convert them to the file types that cocos supports.
How to convert:
1 Locate tools/fbx-conv folder in engine directory, and find the converter;
2 Choose appropriate converter for different operating system;
3 Convert the .fbx file to a .c3b file. See 3D Models for more details.