How to use fog

[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.

[gueoct]

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...

[mbetke]

You need to use the camera target. Or lower the aperature on a large scene.

[FooZe]

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.

[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

[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.

[JuM]

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!!!

[noelnoel]

I always try to make images as fast as possible, modified file attachment with fog, direct light ambient oclusion

OctaneFog directlight.zip

(41.75 KiB) Downloaded 349 times

[retmia]

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 ?

[ACantarel]

-resloved