Dear everybody,
This is the second time this happens to me.
Perfect geometry and when it renders I get loads of light coloured triangles all over the face… any ideas? 
might be a problem with the displacement, check this thread http://www.chaosgroup.com/forum/phpBB2/viewtopic.php?t=14300
also, check if all normals are pointing the same way
I think it’s a loooong triangle. Well, try just to edit ur mesh in max. Several cuts makes it perfect.
I have tried all that guys no luck…
It doesnt look like a geometry error. The geometry is perfect. No wierd normals no overlaping faces.
The funny thing is I redrew the facade but it came up with the same rendering error?!?!?!
There is no displacement anywhere in the scene.
Vlado any ideas?
Would be best to send me a part of the scene for testing at vlado@chaosgroup.com; I do not know what may be off right away.
Best regards,
Vlado