Better quality using render region?

[atoyuser1]

this is odd, I'm getting better results from emissive renders when enabling render region:

This is at 512 samples:

Render

render region

[aoktar]

no odd, it's not producing or re-rendering the parts. Never stops at max-samples if you could notify. It's just for working on small areas with less time.

[atoyuser1]

no odd, it's not producing or re-rendering the parts. Never stops at max-samples if you could notify. It's just for working on small areas with less time.

Ah I see.
Is there a way to improve this emitted light without rendering at thousands of samples?
I think I asked similar question here: viewtopic.php?f=30&t=78740&p=406766#p406766

I've tried adaptive sampling and denoiser, but I am on Octane PR11, so I think it's not working for that version

[elsksa]

Is there a way to improve this emitted light without rendering at thousands of samples?

Hi, in this following link, there are some tips and recommendations that could help: https://www.elsksa.me/scientia/cgi-offl ... r-settings

[atoyuser1]

Is there a way to improve this emitted light without rendering at thousands of samples?

Hi, in this following link, there are some tips and recommendations that could help: https://www.elsksa.me/scientia/cgi-offl ... r-settings

Thanks Elska, I read that and I also tried your tips from this thread where you suggested using a GaussianSpectrum. I still cannot get a acceptable render from 512 samples:

Noise from emitted light

I attached my files in case you want to have a look

LightTest-v01.orbx

Orbx file

(9.66 MiB) Downloaded 67 times

LightTest-v01.c4d.zip

C4D file

(101.9 KiB) Downloaded 81 times

[atoyuser1]

I can get round this using 10,000 samples and adaptive sampling. 42 seconds:

Adaptive sampling. 10,000 samples

LightTest-v02.c4d.zip

(79 KiB) Downloaded 67 times

Surely there is a better way? Unfortunately I don't have the luxury of the denoiser