Suggested Clamp Values

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Racleborg
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Suggested Clamp Values

Post by Racleborg » Mon Jul 30, 2018 12:55 pm

Hi All

With interiors, is there a general rule to aim for with the Suggested Clamp Values?

Are values around 200-300 regarded as acceptable, or is this a bit too high?

I usually aim to keep them under about 50. Is this restricting myself too much?

Thank you

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Sharlybg
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Re: Suggested Clamp Values

Post by Sharlybg » Mon Jul 30, 2018 1:00 pm

Clamp value depend mostly on the kind of lighting you have in your scene. the brighter the light source the higher the clamp/suggested clamp values will be.

My trick is to have 10X the suggested clamp for interior and try to down it until i loose to much detail.
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Racleborg
Posts: 218
Joined: Sat Apr 07, 2018 10:31 am

Re: Suggested Clamp Values

Post by Racleborg » Mon Jul 30, 2018 1:20 pm

Hi Sharlybg

Thank you for your response.

Could you elaborate a bit, please. I'm not quite sure what you mean by:
Sharlybg wrote:
Mon Jul 30, 2018 1:00 pm
My trick is to have 10X the suggested clamp for interior and try to down it until i loose to much detail.
10X?

(If I could get renders that look half as good as yours I'd be well happy! :D )

Cheers

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B.Y.O.B.
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Re: Suggested Clamp Values

Post by B.Y.O.B. » Mon Jul 30, 2018 1:32 pm

I have described the procedure here a bit: https://blenderartists.org/t/motorcycle ... ?u=b.y.o.b

It's also on my to do list to find a better algorithm for suggesting optimal clamp values: https://github.com/LuxCoreRender/BlendL ... issues/195
However I first have to come up with some testing/validation method (and there is probably never a "perfect method" because what counts as a firefly is depending on the scene a bit).
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Racleborg
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Re: Suggested Clamp Values

Post by Racleborg » Mon Jul 30, 2018 1:42 pm

B.Y.O.B. wrote:
Mon Jul 30, 2018 1:32 pm
I have described the procedure here a bit: https://blenderartists.org/t/motorcycle ... ?u=b.y.o.b
Thank you for the link, which has explained it very clearly for me.

Have a nice weekend.

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