Bright little circles with GPU Path

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wasd
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Joined: Tue Apr 24, 2018 7:20 pm

Bright little circles with GPU Path

Post by wasd »

I just started using GPU Path, so I wonder might anyone know what's with those light circles?
window_b-4.png
Denoiser removes most of them, but they get stronger when sample count rises.
window_b-4-denoised.png
Here's the scene https://drive.google.com/open?id=12MoiA ... -YhoX9pFwx.
PhotoGI Cache is enabled in the scene, yet those circles also appear when it's disabled.
CPU Bidir + Metropolis | Core i5-4570
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B.Y.O.B.
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Re: Bright little circles with GPU Path

Post by B.Y.O.B. »

Are you using the bloom filter? They look like fireflies + bloom to me.
wasd
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Re: Bright little circles with GPU Path

Post by wasd »

B.Y.O.B. wrote: Sat Sep 14, 2019 8:19 pm Are you using the bloom filter? They look like fireflies + bloom to me.
I completely forgot about bloom :) Thank you very much! They're not circles, but are conventional fireflies.
Well, I'm not accustomed to fireflies. I used nothing but Bidir before and Bidir rarely produce them.
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Dade
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Re: Bright little circles with GPU Path

Post by Dade »

wasd wrote: Sat Sep 14, 2019 8:26 pm Well, I'm not accustomed to fireflies. I used nothing but Bidir before and Bidir rarely produce them.
Variance clamping is the tool to use with path tracing to removing them.
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wasd
Posts: 319
Joined: Tue Apr 24, 2018 7:20 pm

Re: Bright little circles with GPU Path

Post by wasd »

Dade wrote: Sat Sep 14, 2019 8:31 pm
wasd wrote: Sat Sep 14, 2019 8:26 pm Well, I'm not accustomed to fireflies. I used nothing but Bidir before and Bidir rarely produce them.
Variance clamping is the tool to use with path tracing to removing them.
Thanks a lot! I set suggested value for clamping and fireflies are gone.
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window_b-5.png
CPU Bidir + Metropolis | Core i5-4570
epilectrolytics
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Re: Bright little circles with GPU Path

Post by epilectrolytics »

Very nice interplay of the reflections from the four panes.
Simple but rewarding setup - great work!
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