Open a command prompt, cd into the directory you've put your image series, and then something like:įfmpeg -framerate 30 -i something-%04d.png -c:v libvpx-vp9 -pix_fmt yuva420p -qmin 0 -qmax 20 -metadata:s:v:0 alpha_mode="1" -auto-alt-ref 0 your-output-filename.webm
Currently, Firefox does not support transparency in these codecs (nor does VLC) so you'll have to be using a Chrome based browser source (OBS rather than XSplit). Now you need to stitch the individual frames into a movie file, in a format that supports transparency - in this case the VP8 or VP9 codec. something-0000.png and the number increasesĮnsure you have a transparent background in whatever you use to create the animation Make sure your resolution is set to whatever is appropriate for 2d animation Synfig, which is open source, and has a cheap video course you can buy to get up to speed, or maybe the crashy but otherwise great for free VSDC - SAVE OFTEN!)Įxport the animation to a series of individual PNG frames - things to bear in mind:
If you want it for free, it becomes a multi step process.Ĭreate your animation in whatever you like (e.g.
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