Bug 256087

Summary:	WebGL is not able to reuse old display buffers as drawing buffers if the frames are long
Product:	WebKit	Reporter:	Kimmo Kinnunen <kkinnunen>
Component:	WebGL	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	dino, kbr, kkinnunen, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Local Build
Hardware:	Unspecified
OS:	Unspecified
Bug Depends on:
Bug Blocks:	255987

Description Kimmo Kinnunen 2023-04-28 05:00:57 PDT

WebGL is not able to reuse old display buffers as drawing buffers if the frames are long

If the frames are long, but within 16ms, the WebGL is not able to reuse old display buffers as new drawing buffers.

Likely updateRendering() prepares WebGL for display too soon relative to the UI-side compositing committing in-flight frame.

See for example app in bug 255987

Comment 1 Radar WebKit Bug Importer 2023-04-28 05:01:13 PDT

<rdar://problem/108654803>