My first interior in Luxcore

Post your tests, experiments and unfinished renderings here.
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Snowcarver
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My first interior in Luxcore

Post by Snowcarver »

Hi!
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Sharlybg
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Re: My first interior in Luxcore

Post by Sharlybg »

This is a really good one for a first project with engine.
Can you give us more infos about the 3D package you have ?
Wich luxcore settings used and render time + hardware ?

Thanks for taking time to share with the community ;)
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Snowcarver
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Re: My first interior in Luxcore

Post by Snowcarver »

Thank You for Feedback!

Blender 2.93 + LuxCore 2.6 PreRelease

CPU Core i5-8400 2,8 GHz

1000 samples on about 35 min, CPU only

1152x980 px.

1.PNG
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Sharlybg
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Re: My first interior in Luxcore

Post by Sharlybg »

That look fine considering you are on CPU. Maybe radius scale could be lower for speed up ( from 8 to 1 for example).
But it is still fine as it kept you away from artifacts( you can work with lower number when you are more advanced).

But Your Artficial light may be the cause of lot of fireflies. If it is the case give them an extremelly small importance Value :
In general mesh light source with lot of triangles destroy performances.
importance.jpg
It will make the light source visible without the fireflies
(while you can put point light + IES just under the light source wich is more efficient to sample for the engine)
Last edited by Sharlybg on Fri Oct 08, 2021 1:14 pm, edited 1 time in total.
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Snowcarver
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Re: My first interior in Luxcore

Post by Snowcarver »

Sharlybg wrote: Thu Oct 07, 2021 11:16 am That look fine considering you are on CPU. Maybe radius scale could be lower for speed up ( from 8 to 1 for example).
But it is still fine as it kept you away from artifacts( you can work with lower number when you are more advanced).

But Your Artficial light may be the cause of lot of fireflies. If it is the case give them an extremelly importance Value :
In general mesh light source with lot of triangles destroy performances.
importance.jpg

It will make the light source visible without the fireflies
(while you can put point light + IES just under the light source wich is more efficient to sample for the engine)
Big thank You! This is really valuable recommendation for me, is what I was looking for. I tried these settings and the noise goes away much faster with them. Plus I couldn't figure out how to make a "fake" emission in LuxCore. Now I figure it thanks to you.

And a small question from Your experience. How do You relate lumens in LuxCore to the power of real lamps? Empirically or by some tabular data?
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Sharlybg
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Re: My first interior in Luxcore

Post by Sharlybg »

I'm glad this help you ;)
And a small question from Your experience. How do You relate lumens in LuxCore to the power of real lamps? Empirically or by some tabular data?
This is a more complexe question. in most time i just make what look ok and realistic for the project.
At the end of the day we don't model light bulb filament like in real life.And most of time we don't use real camera tonemapper.
Maybe Devs could give you a better understanding of that topic for sure.
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Snowcarver
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Re: My first interior in Luxcore

Post by Snowcarver »

More resolution (1290x1097)
Less samples (400 samples)
Less time (20 min, it could even be stopped on 15 min)
Lamps look more sexy 8-)

Thanks to Sharlybg!
20min400sam.jpg
I also have changed mtls of the walls and ceiling, backround in the windows,
added more bloom, vignette and CA.
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