[Webkit-unassigned] [Bug 230749] REGRESSION (Safari 15): Poor WebGL gl.POINTS performance

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=230749

--- Comment #10 from Gregg Tavares <gman at chromium.org> ---
Sorry, I didn't mean to imply that solution solves this particular perf issue. 

Instead I just meant to point out, if you're using points, as the demo linked above shows then 

(1) lots of your users are having those images disappear when their center hits the edge of the view and others are not. You really shouldn't be using points at all if you want things to run the same across devices. Checking my own devices I can see the particles are disappearing early on my AMD Mac but moving offscreen smoothly on my NVidia PC.

(2) emulating points is trivial, solves that issue, and only requires a single draw call, same as POINTS, so whatever overhead there is per draw call should disappear  ... separate from any perf bugs in WebKit, ANGLE, the driver.

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