Light patches in render.

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Old 10 October 2012   #1
Light patches in render.

Hi I was wondering what this could be, when I render my scene there are some white light patches popping up, in those region are no lights. My setup is one main light for the directional sun (infinite light) and a HDRI for the environment.

Anyone knows what could be causing that?

Thanks
Thomas
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File Type: jpg Sunset-Pictures0056.jpg (97.1 KB, 137 views)
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TMAS
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Old 10 October 2012   #2
I think I found the issue, turning off "Refractive Caustics" in the Gi seems to do the trick.
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TMAS
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www.invisiblefilms.com
 
Old 10 October 2012   #3
I was wrong it still is happening. Anyone?

Thanks
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Old 10 October 2012   #4
practically impossible to tell without the scene sadly. I see some clouds in the sky perhaps they are affecting the results
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Kai Pedersen
 
Old 10 October 2012   #5
Long time back, it was happening with me. It looks like burning that's why its happening. change light setting/behavior or parameters and try.

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Old 11 November 2012   #6
It was the HDRI image itself. To fix I just emulated the sky colors in a shader radient and the patched were gone, and the image looked close to identical.

Thanks for the help!
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TMAS
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www.invisiblefilms.com
 
Old 11 November 2012   #7
in the future, you can double the image width wise in PS, blur it, crop the center section and have a nice blurred HDRI that will render faster and cleaner. Ideally a sparse convolution would be better, but I'm giving the simple solution with the tools you should already have.
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Kai Pedersen
 
Old 11 November 2012   #8
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