[Webkit-unassigned] [Bug 236130] Low fps when mesh instances are scaled to 0

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=236130

Kenneth Russell <kbr at google.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |geofflang at google.com,
                   |                            |gman at chromium.org,
                   |                            |johncunningham at apple.com,
                   |                            |jonahr at google.com,
                   |                            |kpiddington at apple.com

--- Comment #2 from Kenneth Russell <kbr at google.com> ---
Possibly related to the switch to ANGLE's Metal backend?

Note that there exist surprising pathological geometry cases for GPUs. One I'm aware of from years back was long skinny almost-vertical triangles - this ran much more slowly on vendors' GPUs than others.

It might be the case that the tiny geometry is causing lots of overlapping fragments to be rendered, and maybe serialized, on the GPU.

Please indicate what type of Mac this is reproduced on.

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