Author Topic: Indirect Light noise  (Read 7135 times)

2014-10-14, 19:27:31

frito23

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I couldn't find anything about lowering the noise in indirect light.

I attached some files to show how much noise the indirect light has compared to the others passes.
(thanks for the member phadron for sharing his scene that i used for the render).


2014-10-14, 19:56:15
Reply #1

Ondra

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this is perfectly normal since indirect lighting is more difficult to compute, especially in such simply-lit scene
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2014-10-14, 20:15:35
Reply #2

maru

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You can try lowering LSM (light samples multiplier) to equalize the quality of direct and indirect noise. Just don't change values too fast. Lower LSM a bit, test. It should make the rendering faster to achieve the same level of noise.
Marcin Miodek | chaos-corona.com
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2014-10-14, 23:07:53
Reply #3

frito23

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Thanks for the tips, but I changed the LSM and the noise is still the same.
The previous one I rendered at the default value.


2014-10-14, 23:20:28
Reply #4

romullus

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Compare not for passes but for time and you'll see difference.
I'm not Corona Team member. Everything i say, is my personal opinion only.
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2014-10-15, 07:13:12
Reply #5

frito23

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Compare not for passes but for time and you'll see difference.
Yep, but I want to make less noise, noise free, like if my GI in vray gets grainy I just need to increase the subsamples.

2014-10-15, 09:33:39
Reply #6

romullus

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If you increase samples in Vray, it will takes longer to produce final result, right? So why do you think Corona should act opposite?
Think about that: if you decrease LSM, direct light will gets less samples with each pass, so renderer will calculate more passes in the same amount of time. More passes means that indirect and AA will be more clean
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2014-10-15, 10:10:15
Reply #7

maru

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You should make a test with fixed time, not passes.
Marcin Miodek | chaos-corona.com
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