UV mamping - ArchchiCad Model Artantis render

[Anonymous]

I have a problem while rendering an Archicad model in Artlantis.
The Uv mapping doesn't work for most of the objects (it's greyed out in Art.lantis drop down window). I could live with that when using simple the square objects but the organic shapes like the curtains or blakets with the patterns look really bad (little triangles are showing, blurs, especially on objects curves)/.
I have read somewhere online that Archicad might not support UV texturing, but I am not fully understand this problem so I am hoping for some help or clarification!
And I am sorry if this issue has been raised already.
Thank you