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Re: [fxtf-drafts] [filter-effects-2] Backdrop filters should not use BackgroundImage (#53)

From: Amelia Bellamy-Royds via GitHub <sysbot+gh@w3.org>
Date: Sat, 22 Jun 2019 18:46:45 +0000
To: public-fxtf-archive@w3.org
Message-ID: <issue_comment.created-504689649-1561229203-sysbot+gh@w3.org>
The compat issue against changing `mix-blend-mode` could be addressed by adding a new [`isolation` value](https://drafts.fxtf.org/compositing-2/#propdef-isolation). `auto` (the default) could still isolate by stacking context, but there could be an override (`dont-isolate`?) that uses the full backdrop, if there are no technical reasons not to support that.

Connecting that back to `backdrop-filter`: the `auto` value of isolation is defined to be sensitive to a lot of context.  If the default isolation behavior creates nonsensical results when combined with `backdrop-filter`, then a different behavior could be defined specifically for the interaction between the two properties.

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Received on Saturday, 22 June 2019 18:46:46 UTC

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