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[SOLVED] Volume Box Falloff AA artefacts


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Hello,

 

I am working on a scene using a lot of volume boxes.

Those create the desired effect.

 

Everything works fine as long as I do not combine AA (in the render options) and the falloff option (in the material).

 

It also DOES work combo like: AA + Falloff + NO HDR

It DOES work: AA + NO Falloff + HDR

It does NOT work: AA + Falloff + HDR

 

The combinations seems to bring up strange render issues. Please look at the images attached.

 

Thx.

 

werner

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post-767-0-13443200-1401782231_thumb.jpg

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Hi Werner,

I'm afraid we can't reproduce such behavior so it would be very helpful if you could send us Unigine log file at least.
Also a minimal test scene would be very helpful.

Thanks!

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Dear Sebastin,

 

uploading a testscene atm ~ 350 mb.

 

Attached the startoptions.

 

The scene is set to a camera which is moving around the object array. The artefacts are occuring with these current settings.

 

Cheers

 

Werner

 

 

 

post-767-0-67463300-1401874730_thumb.jpg

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Ok, I think I come closer to that issue.

 

The object in the center uses a material with a GLOW.

 

This seems to do the damage.

 

Disabling the object or assigning a different material solves the render issues.

 

Anyway .. there seems to be a render order issue?

 

Best.

Werner

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Hi Werner,

Sorry for the late reply.
This issue is confirmed and added to our bug tracker.

It seems that this issue actually related to the combination of glow + hdr.

 

Thanks for the test scene and your suggestions.

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