Hi,

I have created several game cards in Cinema4D R23. I have applied different textures according different polygons selections into C4D. It works fine in C4D, I can see one texture on the up face on my card and another texture on the backface of the card. Unfortunatly, when I import the FBX file into iClone, I can see only the front face of the card with the correct texture. The back face seems no to be registred and not applied. I see the correct texture in the iClone texture menu but it's not applied to the object.

Seems like different Polygons selections are a pure C4D function, how can I convert them into iClone compatible feature ?

Thank you,

Pierre

There is a 2 sided box in modify panel. Make sure the box is checked.
I don't know hardly anything about Cinema 4D. My answer may not be correct.
I just read your post, and took a screenshot of the 2 sided box modify panel. 
The screenshot also has my current park project I am working on.