Bug 244521

Summary: TextureMapper: elements with filter or opacity are wrongly z-positioned in 3D transform
Product: WebKit Reporter: Fujii Hironori <Hironori.Fujii>
Component: PlatformAssignee: Nobody <webkit-unassigned>
Status: NEW ---    
Severity: Normal CC: webkit-bug-importer
Priority: P2 Keywords: InRadar
Version: WebKit Nightly Build   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
test case none

Description Fujii Hironori 2022-08-29 17:32:12 PDT 
Created attachment 461996 [details]
test case

TextureMapper: elements with filter or opacity are wrongly z-positioned in 3D transform
Comment 1 Fujii Hironori 2022-08-29 17:35:46 PDT 
commitSurface draws filtered and blending textures with the identity transform. So, the depth is 0.
https://github.com/WebKit/WebKit/blob/bc90c50c6ba84974bbc861bcbb406bbcd35e845f/Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp#L510
Comment 2 Radar WebKit Bug Importer 2022-09-05 17:33:14 PDT 
<rdar://problem/99578862>