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Render matte file?
Hi all,
I have a large project with lots of transparency. In addition to the RGB render, I also need to render a separate file of just the alpha channel as an animated grayscale matte for use in a different software suite. What’s the best way to do this?
Thanks!
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1 Reply
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Found the solution for anyone wondering, or who comes upon this same problem via Google in the future.
Add a new video layer to the top of your project. To that layer, add the effect Mask Generator->Alpha Mask. Drag the effect before Composite at the top to make it apply to the composite of the layers in the project below. Render as normal and you’ll have your matte file.
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