Noice

Hello everyone. I have a problem with the noise which is ruinig almost all of my scenes. I try to use a large number of samples but, this doesn’t work. The problem is solved a bit when I hit the denoising option, but there’s still some place with noise on pics anyway, like here
(you can see it near the kettle and shelves with dishes) :

Denoising cleans the image, but there are still places with noise that it doesn’t “notice”, which spoils the final render. How to fix it?
PS: I used the dishes found here https://www.blendswap.com/blends/view/26617, made by user Jay-Artist https://www.blendswap.com/user/Jay-Artist

1 Like

How large is your large number of samples?

about 2000 samples.

What are your clamping settings?
Have you used branched path tracing?
Is there an HDRI outside the window?

Also, most often the problem lies in shaders/materials…

I guess it’s time for Cycles to get diagnostic sample pass to help solve these kind of cases.

exactly. there are glass materials, I even stop using it for a while, 'cause of the noise, and pick up transparent and translucent instead, but it looks awful. There also some dark spots, but I can’t put the light everywhere on the scene to ged rid of the noise.

Here is the render settings (it’s from the other user, but myne is the same).


Thre is no HDRI light, and I don’t know what is “branched path tracing”, lol.

either

or
https://www.blendswap.com/blends/view/91903

Try setting clamp direct to 10, clamp indirect to 2.

Branched path tracing is an alternate sampling mode that does multiple samples per sample. in scenes with lots of lights, it enables all lights to be sampled every time. It works much better with scenes lit by lamp objects. Each sample takes a little longer, but is much cleaner.
image

@SterlingRoth, @burnin thanx for your help!