bad noise in render, help please!!!! Tweet

[Matteo3d]

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?

[nuno1980]

"Super"!?? but little noises. lol

Change to PMC kernel for solve. But may get longer time, sorry.

[mib2berlin]

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

[Matteo3d]

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

[blackshore]

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.