bad noise in render, help please!!!!

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bad noise in render, help please!!!!

Postby Matteo3d » Tue Nov 08, 2016 3:09 pm

Matteo3d Tue Nov 08, 2016 3:09 pm
Hello guys,
I have this scene,

https://www.flickr.com/photos/149043467 ... res/89r45F


16000 path tracing samples, but, super bad noise!
i use light + hdr

how to solve?
win 10, 64 gb, 2x 1080ti
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Re: bad noise in render, help please!!!!

Postby nuno1980 » Wed Nov 16, 2016 12:52 pm

nuno1980 Wed Nov 16, 2016 12:52 pm
"Super"!?? but little noises. lol

Change to PMC kernel for solve. :) But may get longer time, sorry.
NOTE: I'm sorry for bad english due to mute ;)

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Re: bad noise in render, help please!!!!

Postby mib2berlin » Fri Nov 18, 2016 2:38 pm

mib2berlin Fri Nov 18, 2016 2:38 pm
Hi, yes PMC help for indoor render.
Set diffuse/specular depth to 6 or lower, check coherent ratio 0.5 need a few hundred sample to clean but render much faster.
Remove the wall in back of the camera or add a big mesh emitter with low value to get more light in the room.
Such an image should be noise free in 2-3000 samples or something is wrong with material/light setup.

Cheers, mib
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Re: bad noise in render, help please!!!!

Postby Matteo3d » Fri Nov 18, 2016 4:34 pm

Matteo3d Fri Nov 18, 2016 4:34 pm
thanks to everyone, render very clean, fantastic!

for mib2berlin: check coherent ratio 0.5...
in PMc no coherent ratio, but, diffuse\specular 6-8... very good
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Re: bad noise in render, help please!!!!

Postby blackshore » Thu Dec 22, 2016 8:21 am

blackshore Thu Dec 22, 2016 8:21 am
Matteo3d wrote:Hello guys,
I have this scene,

https://www.flickr.com/photos/149043467 ... res/89r45F


16000 path tracing samples, but, super bad noise!
i use light + hdr

how to solve?


Try to increase the samples on light and render settings for specular and diffuse.
Octane is not 100% unbiased, it uses probabilistic methods for all kernel modes.
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