I’ve seen several discussions on exporting transparent videos here, but I still don’t understand if it can be done, and if so how. I set the background of the document to be transparent, and add the CSS to have a transparent body, but it seems that the scene has a white background so the exports always have a white background. Ultimately I’m interested in exporting a video, which I don’t think is directly supported yet, although this should in theory be possible at least through PNG export. Is there a way to do it now? If so how? Thanks.
There's nothing to comment on/report on the app side - the recommended method is still to do a PNG Sequence export with 'Make background transparent' in the Document Inspector turned on, and then use other software to stitch together the PNGs to a video.
Note that mp4 video does not support alpha channels. The good news is that HEVC video does, so this would be what a future Hype option would support.