Post #2609683
2026-04-30 20:30 UTC
@shovemedia@triangletoot.party Is it possible it’s premultiplied alpha?
Replies (2)
-
@mwichary@mastodon.online 2026-04-30 20:31
@shovemedia@triangletoot.party For webm: -c:v libvpx-vp9 -pix_fmt yuva420p -auto-alt-ref 0 For Safari: -c:v hevc_videotoolbox -allow_sw 1 -q:v 25 -alpha_quality 0.35 -vtag hvc1 -pix_fmt yuva420p
-
@shovemedia@triangletoot.party 2026-04-30 20:36
@mwichary@mastodon.online that was my thought too, but I did a gradient to test semi-transparency and it’s fine. It’s only an issue at the shape edges (I’m playing with converting CSS-animated SVG to video)