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Thursday, 14th of January 2021, 13:56:08 UTC
14:30:29
loke[m]
jackdaniel: No. I don't think so. Blending modes in things like XRENDER or Cairo doesn't want it. And you'd lose data if you try to unmultiply.
14:34:10
jackdaniel
loke[m]: afaik xrender expects premultiplied alpha
14:34:57
jackdaniel
(i.e https://keithp.com/~keithp/talks/usenix2001/xrender/)
14:35:39
jackdaniel
same for qt for what it's worth
16:11:20
jackdaniel
some progress: https://files.mastodon.social/media_attachments/files/105/554/945/554/546/796/original/3335d350fc3a8bac.png
16:19:41
jackdaniel
n.b clx-fb mishandles a stencil for some reason when blended against another translucent object
Friday, 15th of January 2021, 1:56:08 UTC