[Webkit-unassigned] [Bug 232071] Hardware PCF filtering does not work on iOS 15 when using WebGL2

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=232071

--- Comment #3 from Kyle Piddington <kpiddington at apple.com> ---
(In reply to Kenneth Russell from comment #2)
> Only Apple engineers will be able to triage this effectively but is there
> any way you can provide a smaller test case?
> 
> Although - I think depth comparisons in the direct-to-Metal translator were
> a known missing feature and might have been implemented upstream. Kyle, do
> you remember? Searching anglebug.com I couldn't find recent CLs.

I believe the CL you were thinking of was here: https://chromium-review.googlesource.com/c/angle/angle/+/3232818, which just added some workarounds for platforms that didn't correctly implement sample_compare for various options.

Martin, which iOS device are you seeing this regression on? Could you attach a screenshot so I could compare on my own devices?

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