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Alpha Channel Issue
Hello,
I am trying to export a clip from Motion 4 to use in an AE CS3 project. I am exporting with the animation codec to include the alpha channel. In project properties the background is set to transparent. It works for about three seconds and then I see the black Background. Funny thing is when I do it again it messes up in a slightly different spot but eventually the alpha channel is gone around the three second mark. I can’t see anything in the composition that would be doing this.
Any ideas would be appreciated.
Thanks
Dave
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2 Replies
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Sounds like a memory issue, either RAM or VRAM. Set render quality to Normal if you have it at Best. Or export out without alpha, then a separate render of a greyscale alpha matte, and combine them with a travel matte in AE.
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Mark Spencer
Freelance Producer/Editor/Motion Graphics Artist
Apple-certified Master Trainer
Author, Motion 4 from Peachpit Press
https://www.applemotion.net -
No luck turning down the quality, but I found a work around for now. I will try your suggestion with the alpha matte etc when I have a moment, if only to learn how to do it that way. Thanks for the help Mark.
Regards
Dave Simpson
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