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Displacement Cracks

Posted: Fri Oct 31, 2014 5:07 pm
by profbetis
In this setup I have a keyboard constructed entirely from displacement, and it looks great (good job on that feature guys). While usually unnoticeable, I have discovered that there are cracks in the displacement. I found this because I have lights underneath it that make it glow. The strange thing is, this crack is not attached to the surface, it's more of an effect that moves with the camera.

It seems to change based on aperture size.
Image
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Here is a small gallery to flip through showing how it moves with the camera
http://imgur.com/a/jbnxK#0

You can also see some artifacts along the right edge of the pumpkin (which is also done with displacements)
Image

Re: Displacement Cracks

Posted: Mon Nov 03, 2014 1:48 am
by FooZe
Are you happy to post (or PM) a copy of the keyboard scene?

Re: Displacement Cracks

Posted: Mon Nov 03, 2014 4:55 pm
by profbetis
Here is the scene file with relevant textures

Re: Displacement Cracks

Posted: Tue Nov 04, 2014 2:51 am
by FooZe
Thanks for that profbetis, we have managed to reproduce it here and it should be fixed in a future release.

Re: Displacement Cracks

Posted: Tue Nov 04, 2014 4:58 pm
by profbetis
You guys are the best!!

If it's not too terribly complex, what caused this artifact/issue? I love the internal workings of raytracers

Re: Displacement Cracks

Posted: Tue Nov 04, 2014 9:13 pm
by FooZe
I don't know, I'm just the messenger :)

Re: Displacement Cracks

Posted: Tue Nov 04, 2014 9:23 pm
by Karba
profbetis wrote:You guys are the best!!

If it's not too terribly complex, what caused this artifact/issue? I love the internal workings of raytracers
bug in displacement ray intersection.