Hi all, I set up this image with the background being the Prop square translated in the negative z-direction to be behind the subject, and then scaled to 2000% so that the background would fill the entire portrait. When I rendered it, I got the weird pattern on the background. I had not applied any material settings apart from the plain vanilla white setting that comes with the square prop. Can someone please tell me what is going on here, and how I can fix this problem ? thanks and regards, Andrew

Did you flatten the cube? Try using the one sided square instead, that sometimes helps with these artifacts. I am not 100% sure why it happens, I had it happen recently with the Daz freebie temple as well... You're using P6, right?

Yes, I am using P6 SR1, and I am already using the square (not the cube)

Attach the displacement node to the image texture then set the displacement value to 0.001 :-)

Not any more :D In P6 SR1, just go to the material room and check "Normals Forward" for the material that shows the pattern.

Attached Link: http://www.renderosity.com/messages.ez?Form.ShowMessage=1957629

Used to have the problem. Dunno if this will help. :-)

Mathman, make sure you are using the one sided square. This looks like you are using the two sided sqaure.

The only squares that are in the P6 primitives are the one-sided square or the hi-res square (otherwise known as the Cloth Plane). I used the one-sided square. I have, however, just repeated the exercise, and had no problem this time. Go figure. Thanks all who responded. regards, Andrew

Hmm. Looks like a pretty nice "sci-fi" background to me (now, which button should I push? This one? Or that one? No - wait - that button looks good...) Pity you couldn't reproduce the effect, it could have come in useful:-)) OTOH, I'm glad for you that the problem went away; unwanted side-effects are always a PITA.. Cheers, Diolma

A footnote : it has occurred to me that when I got the problematic pattern on the prop, I had bumped up the atmospheric strength on the spotlight, and also set the atmosphere dial to about 0.01 to create a volumetric fog effect. I wonder if that had anything to do with it ? (I should have mentioned this at the beginning)

Mathman, are you sure you used the one-sided square? Because in my Poser 6 primitives library I have One Sided Square, Square Hi-Res, and Square. Here is an example, One Sided Square on the left, Square on the right.

Hmmm interesting .... maybe I was mistaken, and used the square, as you got exactly the same sort of pattern.

Still.. I got the same effect on a Daz prop.. you can see it clearly in the pic HERE - in the background. So how do you fix THAT? I can't just swap the temple for a ine sided square L Or would it help with the thing Stewer mentioned? the Normals forward? Unfortunately I didn't save the PZ3 so I can't try it :) Is it an error in Poser or an error on certain props? As it doesn't do like this on ALL props... And if it's an error in the prop, what can be done to eliminate it? (I wouldn't like to make a prop that had this error)