Bug 233827

Summary:	REGRESSION(r286002) [GLIB] imported/w3c/web-platform-tests/css/css-transforms/animation/transform-interpolation-rotate-slerp.html is flaky image failing in the interpolation with inverse test cases
Product:	WebKit	Reporter:	Lauro Moura <lmoura>
Component:	Animations	Assignee:	Nobody <webkit-unassigned>
Status:	RESOLVED FIXED
Severity:	Normal	CC:	bugs-noreply, dino, graouts, mrobinson, webkit-bug-importer
Priority:	P2	Keywords:	InRadar
Version:	WebKit Nightly Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=233188

Description Lauro Moura 2021-12-03 10:41:52 PST

imported/w3c/web-platform-tests/css/css-transforms/animation/transform-interpolation-rotate-slerp.html

There is a slight difference in some edges (including the edge between green/blue portions) when the test case interpolates with the inverse. The deviation seems to be affected by the position, varying slightly according to the position of the rectangle (i.e. replacing all 5 rectangles with the same transformation yields different mismatches).

Comment 1 Lauro Moura 2021-12-03 10:59:39 PST

Update: It's actually flaky failing. Running locally, 6 out of 100 runs passed.

But it's still related to inverse interpolations. Without them, 100/100 passes.

PS: Updating the revision that introduced the regression. Mixed it with another gardening patch.

Comment 2 Diego Pino 2023-01-10 07:39:45 PST

The test or tests filed under this bug are not failing anymore. Test expectations updated in https://commits.webkit.org/258724@main.

Comment 3 Radar WebKit Bug Importer 2023-01-10 07:40:18 PST

<rdar://problem/104077189>