Volume Intersect Problem

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DionXein
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Volume Intersect Problem

Post by DionXein » Sat Nov 21, 2020 11:58 am

I found strange behaviour while using smoke in blender and rendering it with Lux. Here u can see example scene: smoke domain intersect marble dog figure and enlight dog volume. Figure is smoke collision effector and doesn't really intersect smoke. If change priority value of volumes - it can only cut a part of dog but nothing else.
To see difference just disable smoke domain rendering in outliner

Blender 2.9, Lux 2.5 beta1

Scene for testing: https://drive.google.com/file/d/1e3GifT ... NPTnX0Y_U/
Attachments
WithDomain.jpg
WithoutDomain.jpg

Luximage
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Re: Volume Intersect Problem

Post by Luximage » Tue Nov 24, 2020 3:07 pm

Interesting scene, the spotlight seems to be the problem, it illuminates the smoke and visually cuts the dog in half.

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DionXein
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Re: Volume Intersect Problem

Post by DionXein » Tue Nov 24, 2020 3:34 pm

Okay, seems no one knows where problem is. May be anyone knows how to render smoke in different pass with shading from original objects and combine it?
Just make all other objects holdout? :?:

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DionXein
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Re: Volume Intersect Problem

Post by DionXein » Tue Nov 24, 2020 3:35 pm

Luximage wrote:
Tue Nov 24, 2020 3:07 pm
Interesting scene, the spotlight seems to be the problem, it illuminates the smoke and visually cuts the dog in half.
Spotlight appears the problem, not cause it.

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Dade
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Re: Volume Intersect Problem

Post by Dade » Thu Nov 26, 2020 3:50 pm

I should have fixed this problem.
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Luximage
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Re: Volume Intersect Problem

Post by Luximage » Fri Nov 27, 2020 2:34 pm

Dade wrote:
Thu Nov 26, 2020 3:50 pm
I should have fixed this problem.
I downloaded the latest daily build and i think the problem remains.

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Dade
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Re: Volume Intersect Problem

Post by Dade » Fri Nov 27, 2020 3:31 pm

Luximage wrote:
Fri Nov 27, 2020 2:34 pm
Dade wrote:
Thu Nov 26, 2020 3:50 pm
I should have fixed this problem.
I downloaded the latest daily build and i think the problem remains.
The scene you posted works fine here, check if you have correctly updated BlendLuxCore.
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B.Y.O.B.
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Re: Volume Intersect Problem

Post by B.Y.O.B. » Fri Nov 27, 2020 3:57 pm

I can also still reproduce the problem with the latest sources (from auto build on Windows, self-compiled on Linux) with this scene: https://github.com/LuxCoreRender/BlendL ... issues/601 (after moving the domain cube a bit to the left).

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DionXein
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Re: Volume Intersect Problem

Post by DionXein » Sat Nov 28, 2020 5:21 am

I check last build (16 hours ago) and problems still there
Attachments
Still_problem.jpg
Still_problem_1.jpg
Still_problem2.jpg
Still_problem3.jpg

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Dade
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Re: Volume Intersect Problem

Post by Dade » Tue Dec 01, 2020 1:47 pm

It is working fine here:

ss.jpg

and it wasn't before (the posted scene doesn't include smoke data so I'm using an homogeneous volume both cases).

What kind of result do you get ?
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