I’m using Adobe Media Encoder, exporting from AE with alpha. I can reimport the footage into AE or premiere and see the alpha channel is preserved. I have access to windows or Mac for export.
I’ve tested on VLC independently, using both quicktime and AVI containers with no compression, straight (unmatted) color with RGB+alpha at 32-bit. I can’t get a single example to display correctly upon playback in Intuiface: it displays the alpha channel as black. In my exports, the background was intentionally set to blue, to ensure it wasn’t carrying it through.
The sample video file posted in the knowledge base article is missing/404, so I have no basis of something that “works.”
Thanks for your thoughts.