Introduction to Maya - Rendering in Arnold
This course will look at the fundamentals of rendering in Arnold. We'll go through the different light types available, cameras, shaders, Arnold's render settings and finally how to split an image into render passes (AOV's), before we then reassemble it i
# 1 20-12-2014 , 12:20 AM
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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.

# 2 20-12-2014 , 08:04 AM
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which image type are you rendering?

# 3 20-12-2014 , 06:14 PM
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Initially I used .png, it didnt worked. Then I tried .tiff and that still did not work.

# 4 21-12-2014 , 10:44 PM
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i'm having the same trouble.

# 5 21-12-2014 , 10:46 PM
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single frame renders alpha well, but when batch rendering, it shows black background

# 6 14-02-2015 , 01:33 AM
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I have exported as .exr and the alpha channel is there.

# 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.

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

Great! Thanks!

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