How to keep wind effects after exporting?

Is there any way to keep the wind effects on your tree after exporting it as a .fbx (Into Unreal Engine 4)?

Thanks!

Formerly this was not possible I think. As far as I understand the wind effects are done with a shader that reads (invisible) vertex colors in the mesh to determine the amount of movement etc. The OBJ format doesn't support vertex colors, but FBX does.

Since there is a FBX export now I did a a test: exported a tree, converted the ASCII FBX to binary FBX with Autodesk FBX Converter 2013.3 and imported into Blender. The vertex colors are there! So now all we would have to do is to find out what the colors mean and write a shader that uses them in the same way. I don't know if EVOLVED have open sourced their shader somewhere?

EDIT: Yes they do, it is in the shaders section on their website!