Post #1381712
2026-03-30 11:06 UTC
Live demo: https://random-stuff.jakearchibald.com/apps/partial-img-decode/?demo=cat-3-pass.avif&density=2, although the progressive rendering is Chrome-only right now.
Firefox bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1712813
The progressive passes work like frames of a video, in that subsequent passes can be inter-frames, reusing data.
Replies (1)
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@jaffathecake@mastodon.social 2026-03-30 11:58
Because you can provide arbitrary image data to the encoder for the progressive passes, you're in full control over what those passes look like. In this example, I've created a pass that's blurred except for the 'focal point' of the image (I'm not sure it's a good effect though).