p5 javascript coded snow with one of my watercolors in background ability to capture snippets of the video
change it to use webm like the others convert with the below command
ffmpeg -r 10 -i snow_webm.webm -c:a copy -c:v libx264 -vf "pad=ceil(iw/2)*2:ceil(ih/2)*2" -b:v 5M -maxrate 5M snow.mp4