How to export caption track with alpha?
I have a fully-subtitled feature doc to turnover to finishing, and the vendor is requesting the subtitles as a separate TIFF sequence with alpha. So - how to export a TIFF sequence? I can export the sequence as a separate ProRes file with only the captions, of course, but can I get an alpha channel into that? I presume they can always luma key it, but wondering if it's possible to do as requested?
