OK some of you may be able to answer this question, How do you solve the artifact problem as in my image, i have tried increasing the shadow min bias to 1.5 on the only light with shadows on, and still no fix. Surely EF should have fixed this in P7????? they had P6 for 2Years, what on earth were they doing???? I wouldnt have minded so much but they know this problem exists and the probable way in which users can correct it, so why havent they put it in the P7 MANUAL????? Please someone tell me how to correct this or i will stop using AO cause this always happens.... oh and EF please tell your customers how to sort out these sort of issues if you cant be bothered to fix them....

thats my rant over with.....lol

Check the "Normals_Forward" box on the PoserSurface of the relevant materials.

Ultimate answer is to not use double sided polygons.

use single sided squares instead of cloth planes for creating walls, this happens all the time with flat 2sided objects with any raytracing element. annoying? yes but fixable

Ahhhhhh... damn those Normals on the flat squares in the primatives library....lol
Cheers nruddock.....
Happy New Year

I always use flattened cubes for my walls.
DPH