Closed
Bug 698948
Opened 13 years ago
Closed 1 years ago
'perspective' and rotatey() can make text disappear
Categories
(Core :: Graphics, defect)
Tracking
()
RESOLVED
WORKSFORME
People
(Reporter: wooster_spam, Unassigned)
References
Details
Attachments
(4 files)
Rendering of test case in Firefox Nightly 10.0a1
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:10.0a1) Gecko/20111101 Firefox/10.0a1
Build ID: 20111101031108
Steps to reproduce:
See attached test case.
Actual results:
Block elements transformed with a 3d transform within a block element which has overflow set to "hidden" are not transformed properly.
Expected results:
Both block elements should be rotated around the Y axis by 40 degrees.
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Comment 1•13 years ago
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Comment 2•13 years ago
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Comment 3•13 years ago
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Additionally, the text doesn't render properly in the 3d transformed block element.
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Comment 4•13 years ago
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Both squares are transformed for me in a recent nightly. Can you confirm that's true?
However, the text doesn't render here:
data:text/html,<!doctype html>
<div style="width:100px; -moz-perspective:317px">
<div style="-moz-transform: rotatey(20deg)">
This text is invisible?
Changing 20deg to 19.998deg makes the text visible. Changing the perspective to 317.03px also makes it visible. Changing the angle to -20deg or any other negative number makes the text visible, and so does any angle I tried with rotatex() instead of rotatey().
Blocks: 505115
Status: UNCONFIRMED → NEW
Ever confirmed: true
Summary: overflow:hidden affects rendering of 3d transforms → 'perspective' and rotatey() can make text disappear
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Comment 5•12 years ago
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(In reply to Aryeh Gregor from comment #4)
> However, the text doesn't render here:
>
> data:text/html,<!doctype html>
> <div style="width:100px; -moz-perspective:317px">
> <div style="-moz-transform: rotatey(20deg)">
> This text is invisible?
Is this maybe because the rotation puts some of the text at a z-position greater than the perspective? If so, this is bug 726766.
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Comment 6•12 years ago
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Comment 7•12 years ago
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(In reply to Aryeh Gregor from comment #4)
> Both squares are transformed for me in a recent nightly. Can you confirm
> that's true?
I'm seeing slightly different, but still incorrect rendering behavior on 15.a1 (2012-06-01). Rendering of the test case attached.
> However, the text doesn't render here:
I don't see the relationship between this bug and 726766.
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Comment 8•12 years ago
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You're right, it's not related. The perspective in your original test-case is large enough that even if the rotation were 90deg, nothing should have a z-component larger than the perspective. Same for my reduced test-case in comment 4. My bad.
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Updated•2 years ago
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Severity: normal → S3
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Comment 9•1 years ago
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Unable to reproduce. The text does remain visible.
Status: NEW → RESOLVED
Closed: 1 years ago
Resolution: --- → WORKSFORME
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Updated•1 years ago
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Component: General → Graphics
Product: Firefox → Core
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Description
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