Attached Link: http://www.apvn53.dsl.pipex.com/Temp/Square%20Problem.jpg

...put it into a scene and render. Do you get something like the image in the URL? More importantly, does anyone know how to fix this easily? I hav an object that is made up of loads of these squares and I can't use it in Poser 5 unless I can solve this problem!

That's cool! On the left is the one-sided square, on the right is the two-sided square. Must be a SR4 "feature", or else there's a Martian trapped between the facets of the square, trying to send a distress message in visual Morse.

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It's not an SR4 feature, I've always had this problem with Poser 5, but I've been able to avoid it...till now. I really don't want to rebuild the prop I made with these poser squares in Poser 4. I'm wondering if Poser 5 replaced the square's obj file. I may have to re-install Poser 4 to get the original object.

Isn't this the one where a tiny bit of displacement resolves the issue?

You got my curiosity roused... The OBJ files are identical in P4 and P5. The PP2 (after extracting from PPZ form) are also identical. So switching files probably wouldn't help.

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Yep, displacement solves it...

and after...

I usually attach a Simple_Color node, myself.

In most cases, simply checking "remove backfacing polygons" in the render settings fixes it - no displacement necessary.

I've had this problem happen before. It gets really annoying when you use a flat square prop (with an image) as a background. If this is the same prop that was used in P4, why would "remove backfacing polygons" help? Isn't this prop just one polygon? (Hence the name "flat square".) How many polygons are in this prop and how could someone have originally built it with reversed polygons? --John

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Jhoagland, it does work, though. The reason it happens is because P5 is trying to render the backfacing polys -- which there aren't any of, and so, nothing. however, I generally prefer to use the displacement option -- and no node is needed. It allows for a bit of speed.

thou and I, my friend, can, in the most flunkey world, make, each of us, one non-flunkey, one hero, if we like: that will be two heroes to begin with. (Carlyle)

The "square" prop are two polygons, the "one sided square" is only one polygon. The problem is that both polygons in the square prop are in exactly the same place (they share the four corner vertices), only facing in opposite directions (opposite normals). FireFly is trying to render both polygons, and due to the limited precision of 64bit floating point calculations, you get artifacts.

Thanks guys! I thought that maybe the obj file had been replaced or corrupted with the Poser 5 install, but it obviously isn't that. I'm off to bed now, thanks to you guys this problem won't kep me awake. :0)