1851508 - Rendering artifacts on purecss-pinup

Status: VERIFIED FIXED

(Core :: Graphics: WebRender, defect)

Description

[Mayank Bansal]

DPI=1, resolution = 1440p (may also need 90% browser zoom)
Go to https://diana-adrianne.com/purecss-pinup/

AR: rendering artifacts that look like rays emanating from the sun
ER: Not so

Regression range: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=059b77df2394c7caf1061e1b817e004878738efa&tochange=bd540bacea2eef0fa90fca78276afe5af11cdb5e

On a slow internet so cant do a proper regression. Suspect: bug 1849661

Comment 1

[Mayank Bansal]

Attachment: bug.png

Comment 2

[BugBot [:suhaib / :marco/ :calixte]]

Set release status flags based on info from the regressing bug 1849661

Comment 3

[Glenn Watson [:gw]]

Attachment: Bug 1851508 - Fix rendering artifacts on clip masks with nested perspective

Add support for drawing clip masks in the same reference frame as
the raster space without the perspective transform, which fixes
some complex edge cases with nested complex perspective transforms.

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/b5d67cf8946d
Fix rendering artifacts on clip masks with nested perspective r=gfx-reviewers,lsalzman

Comment 5

[Sandor Molnar[:smolnar]]

https://hg.mozilla.org/mozilla-central/rev/b5d67cf8946d

Comment 6

[Mayank Bansal]

This is fixed on the latest Nightly. Thanks!

Comment 7

[Andrej (:aglavic)]

== Change summary for alert #39559 (as of Fri, 15 Sep 2023 18:00:53 GMT) ==

Improvements:

Ratio	Test	Platform	Options	Absolute values (old vs new)
6%	rasterflood_gradient	macosx1015-64-shippable-qr	e10s fission stylo webrender-sw	1,178.42 -> 1,243.25
5%	rasterflood_gradient	macosx1015-64-shippable-qr	e10s fission stylo webrender-sw	1,178.83 -> 1,242.50

For up to date results, see: https://treeherder.mozilla.org/perfherder/alerts?id=39559

Comment 8

[Anca Soncutean, Desktop QA]

Reproduced with Fx 119.0a1 (2023-09-04) on Windows 10 (at 1440px resolution) .
Verified fixed with FX 120.0a1(2023-10-01) and Fx 119.0b3 on Windows 10 and macOS 13.