Clamp: try to understand it (luxrender 2.5)
Posted: Mon Aug 02, 2021 9:50 am
Hi guys,
I've some free time to make some tests.
I'm testing the clamp feature trying to help Lux producing more clean images.
At least this is what I've understood as the main reason to use it.
Using clamp should be useful to avoid fireflies and due to this, the image should need less samples to be clear.
Is this right? I've correctly understood the reason why use clamp?
I've got some results that I consider "strange" compared to the mission of the clamp feature.
PGI on - Clamp on PGI on - Clamp off PGI off - Clamp on PGI off - Clamp off
In my opinion, the clamped images seem more noisy than the unclamped.
Do you agree?
If yes, is it correct?
I've created a simple scene you can find as attached.
I've some free time to make some tests.
I'm testing the clamp feature trying to help Lux producing more clean images.
At least this is what I've understood as the main reason to use it.
Using clamp should be useful to avoid fireflies and due to this, the image should need less samples to be clear.
Is this right? I've correctly understood the reason why use clamp?
I've got some results that I consider "strange" compared to the mission of the clamp feature.
PGI on - Clamp on PGI on - Clamp off PGI off - Clamp on PGI off - Clamp off
In my opinion, the clamped images seem more noisy than the unclamped.
Do you agree?
If yes, is it correct?
I've created a simple scene you can find as attached.