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Help: Odd streaks when further away

Posted: Thu Apr 16, 2020 7:30 am
by Chronic
Hi everyone,

I'm pretty new to Octane and have just started experimenting with it.
Currently I'm running into an odd problem with my rendering.
When I'm further away, strong streaks start to appear on everything. They disappear when I move closer towards the object.
This happens in both Path Trace and PMC.
I'm using an octaneSunSky environment to light it.

Image

Image

I imagine it has something to do with the kernel settings, but I haven't changed these from the default besides reducing max. samples.

Does someone have an idea what could be causing this?

I have attached the Maya file, in case someone wants to take a look at it.

Re: Help: Odd streaks when further away

Posted: Thu Apr 16, 2020 12:34 pm
by Braca
Just change the Rayepsilon to a biger value by one decimal point. For example from 0.00001 to 0.0001 and you are good to go.

Re: Help: Odd streaks when further away

Posted: Thu Apr 16, 2020 1:17 pm
by Chronic
Braca wrote:Just change the Rayepsilon to a biger value by one decimal point. For example from 0.00001 to 0.0001 and you are good to go.
Thank you for the suggestion Braca, that fixed it indeed!

I didn't know what the Rayepsilon value was, so I left it at the default 0.

Re: Help: Odd streaks when further away

Posted: Fri Apr 17, 2020 3:07 pm
by Braca
You are welcome, we had that issue couple of times before, you can also fix it with Octane unit scale, but rayepsilon works without any issues.