Issue: Arnold Batch Render with Alpha Channel

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# 1 20-12-2014 , 12:20 AM

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Join Date: Dec 2014

Posts: 3

Issue: Arnold Batch Render with Alpha Channel

When batch rendering with Arnold Render(1.1.0.3) in Maya 2015 (Windows 7), I get an alpha channel rendering a single frame. When batch rendering an entire animation i do not get the alpha channel in the images to composite. Any help would be appreciated.

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# 2 20-12-2014 , 08:04 AM

The Nurb Herd
Join Date: Oct 2007

Location: London

Posts: 2,381

which image type are you rendering?

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# 3 20-12-2014 , 06:14 PM

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Join Date: Dec 2014

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Initially I used .png, it didnt worked. Then I tried .tiff and that still did not work.

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# 4 21-12-2014 , 10:44 PM

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Join Date: Feb 2012

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i'm having the same trouble.

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# 5 21-12-2014 , 10:46 PM

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single frame renders alpha well, but when batch rendering, it shows black background

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# 6 14-02-2015 , 01:33 AM

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I have exported as .exr and the alpha channel is there.

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# 7 25-08-2015 , 02:25 PM

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tif seems to work fine also. There is something wrong with the png´s alpha. Even with standard materials matte it doesnt work.

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# 8 16-02-2017 , 12:52 PM

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Location: Belgrade, Serbia

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tif seems to work fine also. There is something wrong with the png´s alpha. Even with standard materials matte it doesnt work.

Originally Posted by theironman

Great! Thanks!