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dirt node + displace = artifact

Posted: Fri Nov 21, 2014 8:41 am
by Andygraph3D
Here a example with octane 2.04
Is it fixed in last release ?

Re: dirt node + displace = artifact

Posted: Mon Nov 24, 2014 8:39 pm
by Bulwerk
I have the same issue and would love for it to be fixed.

Here is my example.
Screen Shot 2014-11-21 at 9.58.50 AM.png

Re: dirt node + displace = artifact

Posted: Mon Nov 24, 2014 8:51 pm
by face_off
May I suggest testing with the latest (2.13) release, and if it is still an issue, post the problem to the 2.13 test thread at http://render.otoy.com/forum/viewtopic.php?f=33&t=43530.

Paul

Re: dirt node + displace = artifact

Posted: Tue Nov 25, 2014 5:48 am
by bepeg4d
hi, have you tried to play with the ray epsilon value in the kernel node?
it dramatically change the dirt effect when displacement is active ;)

Re: dirt node + displace = artifact

Posted: Tue Nov 25, 2014 8:17 am
by Andygraph3D
bepeg4d wrote:hi, have you tried to play with the ray epsilon value in the kernel node?
it dramatically change the dirt effect when displacement is active ;)
i have the same issue with ray epsilon to zero ..

Re: dirt node + displace = artifact

Posted: Wed Nov 26, 2014 9:48 am
by bepeg4d
you need to augment it not reduce it ;)
here is an example:
at the default value
Schermata 2014-11-26 alle 10.42.07.jpg
and with ray epsilon at 0.1
Schermata 2014-11-26 alle 10.42.35.jpg

Re: dirt node + displace = artifact

Posted: Wed Nov 26, 2014 1:50 pm
by Andygraph3D
bepeg4d wrote:you need to augment it not reduce it ;)

many thx for tip ;-)

Re: dirt node + displace = artifact

Posted: Thu Nov 27, 2014 7:11 am
by Seekerfinder
bepeg4d wrote:you need to augment it not reduce it ;)
here is an example:
at the default value
Schermata 2014-11-26 alle 10.42.07.jpg
and with ray epsilon at 0.1
Schermata 2014-11-26 alle 10.42.35.jpg
I like that shot Bepe, just BTW...

Seeker