Backbody Temperature and lights

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Leandro Oliveira
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Backbody Temperature and lights

Post by Leandro Oliveira » Sun Aug 30, 2020 10:55 pm

Hi, guys.

Is it possible to use Backbody Temperature with lights? Not a meshlight object.

Thanks in advance.

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FarbigeWelt
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Re: Backbody Temperature and lights

Post by FarbigeWelt » Tue Sep 01, 2020 7:33 am

Leandro Oliveira wrote:
Sun Aug 30, 2020 10:55 pm
Hi, guys.

Is it possible to use Backbody Temperature with lights? Not a meshlight object.

Thanks in advance.
If not implemented in 2.5 alpha, I guess not. It has been discussed several times.
A triangle mesh with emission equals one area light.
A ditto triangle at the first‘s backside gets closer to a point light with two light sources. To simulate a point light the triangles‘ surface should be tiny.

Maybe you have it like me and artistic power setting sound rather mystic, then switch and you are able to choose lux, lumen or candela.

I like lumen because this fits good to LED package information and size of the light does not matter.
Light and Word designing Creator - www.farbigewelt.ch - aka quantenkristall || #luxcorerender
Windows 10 Pro 64 || 2x16 Cores, AMD Ryzen 3950X @3.5GHz, 64 GB RAM, DDR4 @3.2 GHz
2x openCL, AMD Radeon RX 5700 XT, 8 GB VRAM || Gfp = SFFT Gflops

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Leandro Oliveira
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Joined: Thu Aug 27, 2020 6:05 pm

Re: Backbody Temperature and lights

Post by Leandro Oliveira » Tue Sep 01, 2020 10:27 pm

Thank you, FarbigeWelt. I´ll make some tests about relationship between Light and Meshlight intensities.

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FarbigeWelt
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Re: Backbody Temperature and lights

Post by FarbigeWelt » Wed Sep 02, 2020 1:39 pm

Leandro Oliveira wrote:
Tue Sep 01, 2020 10:27 pm
Thank you, FarbigeWelt. I´ll make some tests about relationship between Light and Meshlight intensities.
You might be interested in my post here: viewtopic.php?f=4&t=2528&p=25075#p25075, especially my dot-blend-file. :idea:
Light and Word designing Creator - www.farbigewelt.ch - aka quantenkristall || #luxcorerender
Windows 10 Pro 64 || 2x16 Cores, AMD Ryzen 3950X @3.5GHz, 64 GB RAM, DDR4 @3.2 GHz
2x openCL, AMD Radeon RX 5700 XT, 8 GB VRAM || Gfp = SFFT Gflops

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Leandro Oliveira
Posts: 36
Joined: Thu Aug 27, 2020 6:05 pm

Re: Backbody Temperature and lights

Post by Leandro Oliveira » Tue Sep 08, 2020 6:40 pm

Thank you, man! I´ll take a look.

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