1476205 - matrix3d AntiAlias works incorrectly

Status: RESOLVED DUPLICATE of bug 1151543

(Core :: Graphics, defect, P3)

Description

[hyrious]

Attachment: open this file in Firefox will reproduce the error

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.181 Safari/537.36

Steps to reproduce:

apply "transform: matrix3d(1,0,0,.001,0,1,0,0,0,0,1,0,0,0,0,1);" to an element with "background-color, border, transform-origin"


Actual results:

the antialias applied to the edges of the element is incorrect and jaggy.


Expected results:

the edges should be smoothed.

Comment 1

[u554753]

Hi hyrious,

Thanks for reporting this issue.

Reproducible with the following specs:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0
Build ID:  20180704003137

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0
Build ID:  20180719140244

Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0
Build ID:  20180720101508

Comment 2

[Sotaro Ikeda [:sotaro]]

I could reproduce the problem. :mattwoodrow, can you comment to the bug?

Comment 3

[Matt Woodrow (:mattwoodrow)]

This is because we don't currently have support for edge antialiasing on Windows, this is covered by bug 1151543.

Looks like WebRender does support this though, so that might be the solution here.