Luxcore 2.2 with Blender 2.8 WAY brighter than 2.1 with Blender 2.79

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Honeyradiance
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Joined: Wed May 22, 2019 9:55 am

Luxcore 2.2 with Blender 2.8 WAY brighter than 2.1 with Blender 2.79

Post by Honeyradiance » Fri Feb 14, 2020 12:04 am

Hello,
I created a scene in Blendluxcore 2.1 on blender 2.79, with lots of light sources, keyframed emission and opacity on materials, and a World Volume with homogenous scattering for mist effect. I was reluctant to switch to Blender 2.8 because of the learning curve for the new interface. But the render farm I use is forcing me to switch to Blendluxcore 2.2 on Blender 2.8 or more. When I opened the file and rendered it the image was WAY too bright. For comparison, I am posting two images. Everything else has been unchanged. I just opened the file. Though this is a different frame, the lighting doesn't change that radically. And I checked other frames and they're all this bright. Though the sample I am posting from Blender 2.79 is at 1000 samples, after 2 hrs of render, I am now at 1178 samples on Blender 2.8 and its not improving at all.
Blender 2.79 Blendluxcore 2.1
Blender 2.79 Blendluxcore 2.1
Blender 2.8 Blendluxcore 2.2
Blender 2.8 Blendluxcore 2.2


Honeyradiance
Posts: 4
Joined: Wed May 22, 2019 9:55 am

Re: Luxcore 2.2 with Blender 2.8 WAY brighter than 2.1 with Blender 2.79

Post by Honeyradiance » Fri Feb 14, 2020 2:24 am

How do I normalize blackbody? I do not see anything about blackbody in version 2.1 or nodes emission normalize so I can reproduce the same settings in 2.2. Haven't graduated to 2.3 yet


chafouin
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Location: Tokyo

Re: Luxcore 2.2 with Blender 2.8 WAY brighter than 2.1 with Blender 2.79

Post by chafouin » Fri Feb 14, 2020 5:23 pm

It's surprising that you are getting different brightness with 2.2 as the changes we made will be part of 2.3. Did you download the stable 2.2 or a daily build?

If you can share your scene, I can help you debug it.

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B.Y.O.B.
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Re: Luxcore 2.2 with Blender 2.8 WAY brighter than 2.1 with Blender 2.79

Post by B.Y.O.B. » Fri Feb 14, 2020 6:24 pm

I don't remember any broken compatibility in v2.2, and there's no mention of it in the release logs.
I would try to disable lights until you found the culprit, it's probably only affecting one light type.

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