88125 2012-06-01 12:47:46 -0700 REGRESSION (r114283): Layer intersection broken in some cases 2022-10-25 08:11:31 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified NEW InRadar P2 Normal --- 88115 1 simon.fraser webkit-unassigned ahmad.saleem792 dino enne jamesr simon.fraser webkit-bug-importer oldest_to_newest 639636 0 145360 simon.fraser 2012-06-01 12:47:46 -0700 Created attachment 145360 Testcase http://trac.webkit.org/changeset/114283/ caused us to no longer make backing store in certain scenarios. However, that breaks rendering when layers intersect. 639639 1 webkit-bug-importer 2012-06-01 12:48:38 -0700 <rdar://problem/11577247> 639672 2 145367 simon.fraser 2012-06-01 13:29:59 -0700 Created attachment 145367 Clearer testcase 641909 3 simon.fraser 2012-06-05 14:49:44 -0700 The patch in bug 88115 fixes this. 641912 4 simon.fraser 2012-06-05 14:52:19 -0700 Actually the testcase should not show intersection, according to the CSS transforms spec. It has two separate preserve-3d elements, and children of those should not intersect between them. 1908090 5 ahmad.saleem792 2022-10-25 08:11:31 -0700 In testcase, all browsers (Safari 16.1, Chrome Canary 109 and Firefox Nightly 108) show that these rectangles intersect with each other. All browsers wrong or this is fixed or clarified in web-spec so this is not desired / expected results? Thanks! 145360 2012-06-01 12:47:46 -0700 2012-06-01 13:29:59 -0700 Testcase no-compositing-for-preserve-3d-2.html text/html 1353 simon.fraser PCFET0NUWVBFIGh0bWw+Cgo8aHRtbD4KPGhlYWQ+CiAgPHN0eWxlPgogICAgLmNvbnRhaW5lciB7 CiAgICAgICAgLXdlYmtpdC1wZXJzcGVjdGl2ZTogNTAwcHg7CiAgICAgICAgd2lkdGg6IDUwMHB4 OwogICAgICAgIGhlaWdodDogNTAwcHg7CiAgICB9CiAgICAuYm94IHsKICAgICAgcG9zaXRpb246 IHJlbGF0aXZlOwogICAgICBoZWlnaHQ6IDEwMHB4OwogICAgICB3aWR0aDogMTAwcHg7CiAgICAg IG1hcmdpbjogMTBweDsKICAgICAgbGVmdDogMDsKICAgICAgdG9wOiAwOwogICAgICBiYWNrZ3Jv dW5kLWNvbG9yOiBzaWx2ZXI7CiAgICB9CiAgICAKICAgIC5wcmVzZXJ2ZTNkIHsKICAgICAgcG9z aXRpb246IGFic29sdXRlOwogICAgICB3aWR0aDogMzAwcHg7CiAgICAgIGJvcmRlcjogMXB4IHNv bGlkIGJsYWNrOwogICAgICBwYWRkaW5nOiAyMHB4OwogICAgICBtYXJnaW46IDEwcHg7CiAgICAg IC13ZWJraXQtdHJhbnNmb3JtLXN0eWxlOiBwcmVzZXJ2ZS0zZDsKICAgIH0KICA8L3N0eWxlPgoK ICA8c2NyaXB0PgogIGlmICh3aW5kb3cubGF5b3V0VGVzdENvbnRyb2xsZXIpCiAgICBsYXlvdXRU ZXN0Q29udHJvbGxlci5kdW1wQXNUZXh0KCk7CiAgICAKICBmdW5jdGlvbiBkdW1wTGF5ZXJzKCkK ICB7CiAgICB2YXIgbGF5ZXJzUmVzdWx0ID0gZG9jdW1lbnQuZ2V0RWxlbWVudEJ5SWQoJ2xheWVy cycpOwogICAgaWYgKHdpbmRvdy5sYXlvdXRUZXN0Q29udHJvbGxlcikKICAgICAgbGF5ZXJzUmVz dWx0LmlubmVyVGV4dCA9IGxheW91dFRlc3RDb250cm9sbGVyLmxheWVyVHJlZUFzVGV4dCgpOwog ICAgCiAgfQogIHdpbmRvdy5hZGRFdmVudExpc3RlbmVyKCdsb2FkJywgZHVtcExheWVycywgZmFs c2UpCiAgPC9zY3JpcHQ+Cgo8L2hlYWQ+Cjxib2R5PgoKICAgIDxkaXYgY2xhc3M9ImNvbnRhaW5l ciI+CiAgICAgICAgPGRpdiBjbGFzcz0icHJlc2VydmUzZCI+CiAgICAgICAgICBUaGlzIGxheWVy IHNob3VsZCBiZSBjb21wb3NpdGVkLgogICAgICAgICAgPGRpdiBjbGFzcz0iYm94IiBzdHlsZT0i LXdlYmtpdC10cmFuc2Zvcm06IHJvdGF0ZSgwKSI+PC9kaXY+CiAgICAgICAgPC9kaXY+CgogICAg ICAgIDxkaXYgY2xhc3M9InByZXNlcnZlM2QiIHN0eWxlPSJ0b3A6IDUwcHg7Ij4KICAgICAgICAg IFRoaXMgbGF5ZXIgc2hvdWxkIGJlIGNvbXBvc2l0ZWQuCiAgICAgICAgICA8ZGl2IGNsYXNzPSJi b3giIHN0eWxlPSItd2Via2l0LXRyYW5zZm9ybTogcm90YXRlWSgzMGRlZykiPjwvZGl2PgogICAg ICAgIDwvZGl2PgogICAgICAgIAogICAgPC9kaXY+CjxwcmUgaWQ9ImxheWVycyI+TGF5ZXIgdHJl ZSBnb2VzIGhlcmUgaW4gRFJUPC9wcmU+Cgo8L2JvZHk+CjwvaHRtbD4K 145367 2012-06-01 13:29:59 -0700 2012-06-01 13:29:59 -0700 Clearer testcase intersection.html text/html 1309 simon.fraser PCFET0NUWVBFIGh0bWw+Cgo8aHRtbD4KPGhlYWQ+CiAgPHN0eWxlPgogICAgLmNvbnRhaW5lciB7 CiAgICAgICAgLXdlYmtpdC1wZXJzcGVjdGl2ZTogNTAwcHg7CiAgICAgICAgd2lkdGg6IDUwMHB4 OwogICAgICAgIGhlaWdodDogNTAwcHg7CiAgICB9CiAgICAuYm94IHsKICAgICAgcG9zaXRpb246 IHJlbGF0aXZlOwogICAgICBoZWlnaHQ6IDEwMHB4OwogICAgICB3aWR0aDogMTAwcHg7CiAgICAg IG1hcmdpbjogMTBweDsKICAgICAgbGVmdDogMDsKICAgICAgdG9wOiAwOwogICAgICBiYWNrZ3Jv dW5kLWNvbG9yOiBzaWx2ZXI7CiAgICAgIGJvcmRlcjogMnB4IHNvbGlkIGJsYWNrOwogICAgfQog ICAgCiAgICAucHJlc2VydmUzZCB7CiAgICAgIHBvc2l0aW9uOiBhYnNvbHV0ZTsKICAgICAgd2lk dGg6IDMwMHB4OwogICAgICBib3JkZXI6IDFweCBzb2xpZCBibGFjazsKICAgICAgcGFkZGluZzog MjBweDsKICAgICAgbWFyZ2luOiAxMHB4OwogICAgICAtd2Via2l0LXRyYW5zZm9ybS1zdHlsZTog cHJlc2VydmUtM2Q7CiAgICB9CiAgPC9zdHlsZT4KCiAgPHNjcmlwdD4KICBpZiAod2luZG93Lmxh eW91dFRlc3RDb250cm9sbGVyKQogICAgbGF5b3V0VGVzdENvbnRyb2xsZXIuZHVtcEFzVGV4dCgp OwogICAgCiAgZnVuY3Rpb24gZHVtcExheWVycygpCiAgewogICAgdmFyIGxheWVyc1Jlc3VsdCA9 IGRvY3VtZW50LmdldEVsZW1lbnRCeUlkKCdsYXllcnMnKTsKICAgIGlmICh3aW5kb3cubGF5b3V0 VGVzdENvbnRyb2xsZXIpCiAgICAgIGxheWVyc1Jlc3VsdC5pbm5lclRleHQgPSBsYXlvdXRUZXN0 Q29udHJvbGxlci5sYXllclRyZWVBc1RleHQoKTsKICAgIAogIH0KICB3aW5kb3cuYWRkRXZlbnRM aXN0ZW5lcignbG9hZCcsIGR1bXBMYXllcnMsIGZhbHNlKQogIDwvc2NyaXB0PgoKPC9oZWFkPgo8 Ym9keT4KCiAgICA8cD5UaGUgdHdvIGdyYXkgYm94ZXMgc2hvdWxkIGludGVyc2VjdDwvcD4KICAg IDxkaXYgY2xhc3M9ImNvbnRhaW5lciI+CiAgICAgICAgPGRpdiBjbGFzcz0icHJlc2VydmUzZCI+ CiAgICAgICAgICA8ZGl2IGNsYXNzPSJib3giPjwvZGl2PgogICAgICAgIDwvZGl2PgoKICAgICAg ICA8ZGl2IGNsYXNzPSJwcmVzZXJ2ZTNkIiBzdHlsZT0idG9wOiA1MHB4OyI+CiAgICAgICAgICA8 ZGl2IGNsYXNzPSJib3giIHN0eWxlPSItd2Via2l0LXRyYW5zZm9ybTogcm90YXRlWSgzMGRlZyk7 Ij48L2Rpdj4KICAgICAgICA8L2Rpdj4KICAgICAgICAKICAgIDwvZGl2Pgo8cHJlIGlkPSJsYXll cnMiPkxheWVyIHRyZWUgZ29lcyBoZXJlIGluIERSVDwvcHJlPgoKPC9ib2R5Pgo8L2h0bWw+Cg==