1701058 - feComposite blend operators render as white

Status: RESOLVED DUPLICATE of bug 455986

(Core :: SVG, defect)

Description

[stu.axon]

Attachment: Screenshot_2021-03-25 Combine Input Images With The feComposite Filter Primitive(1).png

User Agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:86.0) Gecko/20100101 Firefox/86.0

Steps to reproduce:

Visited this page
https://vanseodesign.com/web-design/svg-filter-primitives-fecomposite/

Actual results:

All the examples using feComposite render as white

Expected results:

There should be different outputs in these boxes.

Comment 1

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

The Bugbug bot thinks this bug should belong to the 'Core::Graphics: WebRender' component, and is moving the bug to that component. Please revert this change in case you think the bot is wrong.

Comment 2

[Timothy Nikkel (:tnikkel)]

I see the same thing in Firefox and Chrome.

Comment 3

[Jeff Muizelaar [:jrmuizel]]

It works in Safari. Perhaps the browsers are interpreting the spec differently.

Comment 4

[Jeff Muizelaar [:jrmuizel]]

Robert, do you know which browsers are correct?

Comment 5

[Robert Longson [:longsonr]]

The bug is misidentified. The problem is not supporting fragments in feImage. Our implementation of feComposite is correct.

Comment 7

[stu.axon]

Thanks for looking at this.