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A comment on New WebKit features in Safari 15.4. Parent comment

Re:New WebKit features in Safari 15.4 by arilotter on Tuesday March 15, 2022 @11:29AM (#30686527)
I haven't made a minimal viable repro yet, but - our game renders perfectly on any iOS lower than 15.4, but on 15.4, this happens: https://cdn.discordapp.com/attachments/913446741154611250/95...

Happens on latest Safari on MacOS, too: https://cdn.discordapp.com/attachments/476502698066182179/95...

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Re:New WebKit features in Safari 15.4 by AbacusAvenger on Thursday March 17, 2022 @02:11PM (#30714198)
It could be an ANGLE change responsible. I know Apple's been working on the Metal rendering backend. Maybe something in that is breaking for you.

I'm not sure if the video represents what's going on perfectly, but it appears like maybe it's reading old data from an improperly cleared framebuffer or something?

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