1772176 - Overlapping drop shadows causing strange artifacts in Firefox only

Status: RESOLVED WORKSFORME

(Core :: Graphics: WebRender, defect)

Description

[conor4arms]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0

Steps to reproduce:

Having multiple elements that cast drop-shadows overlap causes strange artifacts. Specifically when both these elements have their geometries defined by 3D transformations of child objects. Live example at https://conorpo.github.io/ (my portfolio that i am working on.

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:100.0) Gecko/20100101 Firefox/100.0

Actual results:

https://gyazo.com/55a0814dc10ec9f8d45216c768cfd16d

Overlapping drop shadows caused artifacts

Expected results:

Overlapping drop shadows should overlay properly

Comment 1

[conor4arms]

These artifacts do not appear in chrome.

Comment 2

[Alice0775 White]

Regression window:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=c6f1243c3ba45a4ad3cfd1cacdbf12ad377b4a81&tochange=fc2b3d6448bcc3575fffb1abc923e7e703aeef54

Comment 3

[BugBot [:suhaib / :marco]]

:gw, since you are the author of the regressor, bug 1749380, could you take a look?
For more information, please visit auto_nag documentation.

Comment 4

[BugBot [:suhaib / :marco]]

The severity field is not set for this bug.
:gw, could you have a look please?

For more information, please visit auto_nag documentation.

Comment 5

[Glenn Watson [:gw]]

This looks to be correct now, from a quick look at the existing linked site?

Comment 6

[BugBot [:suhaib / :marco]]

Redirect a needinfo that is pending on an inactive user to the triage owner.
:gw, since the bug has recent activity, could you please find another way to get the information or close the bug as INCOMPLETE if it is not actionable?

For more information, please visit BugBot documentation.

Comment 7

[conor4arms]

Hello! I git switched to my site as it was when I made this post and the issue is completely gone. I can send code or create minimal example if needed.