1757851 - Wireframe effect on 3D demo only present in Firefox

Status: RESOLVED DUPLICATE of bug 1850869

(Core :: Graphics: WebRender, defect, P3)

Description

[Gregory Pappas [:gregp]]

Attachment: tree.png

Steps to reproduce:

Visit https://codepen.io/danwilson/pen/VwzNLYd
Remove mix-blend-mode: overlay; from CSS pane

Actual results:

Wireframe effect

Expected results:

No wireframe effect

Comment 1

[Brad Werth [:bradwerth]]

I see the wireframe effect (the edges of divs) with or without the mix-blend-mode applied.

Comment 2

[Kelsey Gilbert [:jgilbert]]

I see this when I zoom to 130%.

Comment 3

[Glenn Watson [:gw]]

Attachment: tree.html

A relatively minimized repro case - just the one tree rotating. I see the bug on the edges, though that might be because I run at 150% by default.

Comment 4

[Glenn Watson [:gw]]

The issue (both the original link and the minimal case) also reproduce on current release Firefox, so it must be a pre-existing bug and not a regression from bug #1749380.

Comment 5

[Mayank Bansal]

dupe of bug 1671784 ?

Comment 6

[Glenn Watson [:gw]]

Yes, seems likely that they are the same.

Comment 8

[Mayank Bansal]

This did not get fixed by bug 1671784. As per discussion with :gw, unduping this bug.

Comment 9

[Mayank Bansal]

Cant repro anymore. Calling this fixed by bug 1850869 and duping.