svg rotated text or lines render differently when animated. Leads to jittering

RESOLVED INACTIVE

Status

()

Core
SVG
RESOLVED INACTIVE
5 years ago
4 hours ago

People

(Reporter: -, Unassigned)

Tracking

({regression})

18 Branch
x86_64
Windows 7
regression
Points:
---

Firefox Tracking Flags

(firefox21 affected, firefox22 affected, firefox23 affected, firefox24 affected, firefox-esr17 unaffected)

Details

Attachments

(2 attachments)

(Reporter)

Description

5 years ago
Created attachment 750952 [details]
svg_rotated_text_before_and_after.png

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0 (Beta/Release)
Build ID: 20130511120803

Steps to reproduce:

created svg text with transform="rotate(0 20,40)"
javascript interval changes rotation angle by 1 every 500ms


Actual results:

Visible jittering between blurry and clear text.


Expected results:

Text is not jittering.
Can you attach a testcase please?
Flags: needinfo?(timofey.illarionov)
Component: Untriaged → SVG
Product: Firefox → Core
(Reporter)

Comment 2

5 years ago
Created attachment 750954 [details]
testcase

added testcase
also jsfiddle link http://jsfiddle.net/Pf6zR/3/ if needed
Flags: needinfo?(timofey.illarionov)
Attachment #750954 - Attachment mime type: text/plain → text/html

Comment 3

5 years ago
It works as expecting if set svg.display-lists.painting.enabled to false
Blocks: 776054
Status: UNCONFIRMED → NEW
status-firefox21: --- → affected
status-firefox22: --- → affected
status-firefox23: --- → affected
status-firefox24: --- → affected
status-firefox-esr17: --- → unaffected
Ever confirmed: true
Version: 21 Branch → 18 Branch

Updated

5 years ago
Keywords: regression
Transitioning between active and inactive layers I guess? Use CSS animations instead :-)
Duplicate of this bug: 897892
Summary: svg rotated text is blurry at first, then it becomes clear. Leads to jittering → svg rotated text or lines render differently when animated. Leads to jittering
Duplicate of this bug: 913139

Comment 7

4 hours ago
Per policy at https://wiki.mozilla.org/Bug_Triage/Projects/Bug_Handling/Bug_Husbandry#Inactive_Bugs. If this bug is not an enhancement request or a bug not present in a supported release of Firefox, then it may be reopened.
Status: NEW → RESOLVED
Last Resolved: 4 hours ago
Resolution: --- → INACTIVE
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