Bug 239599

Summary:	Crash or or no rendering when antialiasing is enabled
Product:	WebKit	Reporter:	Philip Taylor <philip.taylor>
Component:	ANGLE	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Major	CC:	dino, geofflang, gman, jonahr, kbr, kkinnunen, kpiddington
Priority:	P2
Version:	Safari 15
Hardware:	All
OS:	All

Description Philip Taylor 2022-04-21 05:35:40 PDT

I have noticed several people online saying that antialiasing has been causing problems recently on Safari, but I couldn't find a bug related to it...

This page loads, because antialiasing is disabled.
https://docs.zea.live/Safari-Crash-Test/?grid

This page crashes because antialiasing is enabled.
https://docs.zea.live/Safari-Crash-Test/?grid&antialias


Note: we also have the same behavior in Chrome on Apple devices, so I am guessing that the issues is in the ANGLE/Metal layer that they both use.


Note2: this bug is using the same repro scene as this other issue: https://bugs.webkit.org/show_bug.cgi?id=239015

Comment 1 Kenneth Russell 2022-04-21 21:19:15 PDT

This is a duplicate of the other WebGL MSAA bugs. The test case loads in Safari Technology Preview Release 143 (Safari 15.4, WebKit 17614.1.7.7) on an M1 Mac and  doesn't load on Safari Version 15.4 (17613.1.17.1.13).

*** This bug has been marked as a duplicate of bug 238196 ***