Bug 234218

Summary:	Metal backend fails
Product:	WebKit	Reporter:	markus
Component:	WebGL	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED DUPLICATE
Severity:	Normal	CC:	dino, kbr, kkinnunen
Priority:	P2
Version:	Safari 15
Hardware:	Unspecified
OS:	Unspecified

Description markus 2021-12-12 16:29:16 PST

Metal backend fails with this shader: https://www.shadertoy.com/view/NttSzB

Comment 1 Kimmo Kinnunen 2021-12-13 00:07:13 PST

Thanks for the report. This has been fixed and will ship in iOS15.2 and a future macOS release.
(Workaround by not feeding modMirror1 a single-component swizzle but a temporary variable and then set the temporary to the swizzle.

*** This bug has been marked as a duplicate of bug 230472 ***