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Hey @developit , I've been working with Houdini recently and this feature would be really nice to have. Seems like it might not be doable but I also see that this PR is a couple years old at this point. Wondering if there have been any developments that make this worth revisting? |
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@spmonahan there haven't been any changes to the web platform that would make it possible to polyfill this, and it's very unlikely there will be (since those changes would most likely happen as part of Houdini). |
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I figured as much :( Thanks for the quick reply! |
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It looks like Safari supports animating registered custom properties now: |
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This tracks animation state and runs a frame loop to update painted elements that are affected by transition/animation changes. It's pretty slow though, and these browsers don't provide "rendered values" for animating/transitioning custom properties anyway. The result is basically that the polyfill triggers a bunch of painter updates, none of which are useful.
Without tracking:
With tracking: