# Render animation to WebM with 'Transparent' alpha channels?

I saw this question asked, but all of the answers were out of date by a couple years. Since most web browsers now support Webm with alpha channels, has Blender included a way to encode alpha channels to Webm?

If not, could someone provide an ffmpeg cli command to render a png sequence to a webm with alpha channels? I don't see anything in the ffmpeg manual.

• Seems there is no option in 2.93.4... ffmpeg -framerate 25 -f image2 -i frames/%03d.png -c:v libvpx-vp9 -pix_fmt yuva420p output.webm from Convert PNGs to webm video with transparency Sep 25 at 7:41