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Re: How to use fog

Posted: Mon Mar 18, 2013 9:50 pm
by mbetke
Whats happening with Mr.PMC here?
It is much faster than Pathtracing but gives big blotches which go fullbrigt. I had to reduce scattering to 0.1 and scale to 0.05 to reduce it a bit.
But look is totally different as PT.

PMC goes mad after 80 samples or so.

Re: How to use fog

Posted: Tue Mar 19, 2013 10:24 am
by gueoct
princedragoncok wrote:Everything goes out of focus when I put it in a bigger scene and the focus picker doesn't seem to solve the problem.
The Focus picker can only pick the sphere, of course...

hide the sphere - focus - unhide the sphere!

sucks, but i don“t know a different way...

Re: How to use fog

Posted: Tue Mar 19, 2013 10:28 am
by mbetke
You need to use the camera target. Or lower the aperature on a large scene.

Re: How to use fog

Posted: Tue Mar 19, 2013 10:30 pm
by FooZe
mbetke wrote:Whats happening with Mr.PMC here?
It is much faster than Pathtracing but gives big blotches which go fullbrigt. I had to reduce scattering to 0.1 and scale to 0.05 to reduce it a bit.
But look is totally different as PT.

PMC goes mad after 80 samples or so.

Hi Mbetke,

This can be normal for PMC for low samples per pixel, try leaving it to render out some more, at least a couple of thousand spp. Hopefully it will level out to be more similar to PT.

Thanks
Chris.

Re: How to use fog

Posted: Wed Mar 20, 2013 2:29 am
by Tugpsx
I like the rays, as you have shown them.To get this working, does the light have to come into contact with the sphere

Re: How to use fog

Posted: Thu Mar 21, 2013 7:59 am
by mbetke
No it just gets brighter and brighter. No changes and very unusual if I compare with other PMC renderings. I had this bright blotches phenomenon last time if I use too bright HDR images.

Re: How to use fog

Posted: Fri Mar 22, 2013 2:59 am
by JuM
Karba wrote:
JuM wrote:However it can not be used in big scenes.
Really?
What about that?
Fantastic!!! thats what i mean exactly:D
Karba could you please share the settings? or max file!!!

Re: How to use fog

Posted: Wed Mar 27, 2013 5:35 pm
by noelnoel
I always try to make images as fast as possible, modified file attachment with fog, direct light ambient oclusion
direct.jpg
OctaneFog directlight.zip
(41.75 KiB) Downloaded 350 times

Re: How to use fog

Posted: Thu Apr 11, 2013 6:53 pm
by retmia
noelnoel wrote:I always try to make images as fast as possible, modified file attachment with fog, direct light ambient oclusion
direct.jpg
OctaneFog directlight.zip
Thank you very much, it really fastens the renders!

...

Is there a way to increase the fog density so that at a distance of around ten meters in an outside scene we start to only see the fog ?

Re: How to use fog

Posted: Tue Nov 29, 2016 3:37 am
by ACantarel
-resloved