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I've managed to render PNGs which have my machine on a transparent background, but I want to have a video of it. I've tried lots of settings to no avail....the film/transparent setting doesn't seem to do anything.

Every vid I've rendered, whether it be straight from Blender Render or Cycles Render or via creating a film strip from the PNGs via Video Editor and creating a vid from there, turns up with a black background from my scene.

Whats the trick?



marked as duplicate by cegaton, Denis, Timaroberts, Duarte Farrajota Ramos, Ray Mairlot Jan 21 '17 at 11:10

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  • $\begingroup$ As far as I know no video format supports alpha channels, render as an image sequence instead. $\endgroup$ – Duarte Farrajota Ramos Jan 21 '17 at 6:46
  • 1
    $\begingroup$ @DuarteFarrajotaRamos there are versions of Prores that do support Alpha channels: ProRes4444 and the high bitrate versions of the DNxHD and DNxHR codecs. But you can't encode directly on them from blender. You would need an external encoder or ffmpeg $\endgroup$ – cegaton Jan 21 '17 at 16:46

Mp4 does not support alpha channel. You need to encode using a codec that does.


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