Problems with VRAY Scene Background

[Newbie82]

Hi,

i'm using Vray 1.5 and have the following problem. Everytime when I render my scene I receive the following result. How can I get rid of the streaks (marked in the red squares)? I just want to get a smooth background without streaks.



Thanks for your Support.

[LarsSonparsson]

Try to render without reflective GI caustics.
I'm 90% sure thats the reason for those artifacts.

[Newbie82]

Thanks for the quick answer, but unfortunately I receive the same render result. When I turn indirect illumination generally off, the artifacts are gone. But thats the main function of vray.

What could be the failure???

[LarsSonparsson]

What if you set Irradiance map mode to "single frame". ...just to be sure, that you are not loading some wrong ir map, when having it in "from file" mode.

[Newbie82]

Problem solved

Thank you! It worked well. I had an old Map. When I rendered it without reflection causics into a new map all problems were gone!!!

[Newbie82]

Now I have the problem, when I render a animation and crate a irradiance and light cage file, the problems (artifacts) come up again at frame 300. What can I do to avoid that problem?