[Webkit-unassigned] [Bug 238197] WebGL: rendering difference OpenGL, Metal: MSAA + disable depth_test causes depth invalid depth buffer (AMD)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=238197

--- Comment #1 from Kenneth Russell <kbr at google.com> ---
What's the behavior on Chrome Canary, both with the defaults, and with the command line argument:
  --use-angle=metal
? If the two paths render identically there, then this will be fixed with the forthcoming ANGLE roll in Bug 238171.

On my 2017 dual-GPU Intel/AMD MacBook Pro, I don't see a behavioral difference in either Canary or stable Safari 15.4, using gSwitch to force on the AMD GPU. This might be specific to this particular GPU family. There have certainly been other bugs specific to newer AMD GPUs than were in the 2017 MBP.

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