AO Lightmap problem
 

Hi everyone!

I'd like to ask some help. I'm started to make the Type 7B Turm AO lightmap with the help of flakmonkey's Creating-Ambient-Occlusion-Maps tutorial.
The problem is, there is 3 materials, and the .obj, file is exported with these 3 materials. In Maya I do everything that the tutorial shows. But when i wanted to import, it show the these error massage:

http://i213.photobucket.com/albums/c...6011/error.png

After automatic mapping, I tried to save the file with Maya, named as "-uv2.obj". Then I use the Surface Shader and make the Rendering. As next step I import the "-uv2.obj" file into the S3D program.

http://i213.photobucket.com/albums/c...011/7B_Int.png

But the game reports error and shuts down.
I didn't have problem with one materinal, but when there are more I couldn't import into S3D.

Can you help me?