Mental Ray render-to-texture: black circle around (0;0;0)

diamond3

Hi,

I'm getting large black circle on Lighting Map when rendering to texture using Mental Ray.

The scene consists of terrain laying at 0 height (Z coordinate) and a few buildings.

Notice the large black circle, near the center of resulting texture. It appears at the origin of coordinates - around point (0;0;0).
I know I can avoid this by moving scene somewhere further from (0;0;0), but is there any options to avoid this in simpler way?

Neox

is this a double sided mesh? maybe the backside is clipping through. I have high doubts that this has anything to do with the world or UV position, if so that is really weird

diamond3

No, it is not double-sided. This happened to me before on similar scenes, too. It would appear around (0;0;0) every time.

Bruno Afonseca

I'm going to keep an eye on this since I often get this problem as well... Some random blobs or squares on my render-to-texture results. Never thought about moving the object away though!