[Webkit-unassigned] [Bug 51609] New: Adding CSS transitions should result in a smooth animation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=51609

           Summary: Adding CSS transitions should result in a smooth
                    animation
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: webkit at meurisse.org


Created an attachment (id=77438)
 --> (https://bugs.webkit.org/attachment.cgi?id=77438&action=review)
Testcase

When combining CSS transitions (eg. an animated div inside another animated div), I expect the resulting animation to be smooth. Instead, each position is rounded to the closest pixel before the final sum. Please look at the attachment for a demo (and open it in Firefox4 for the expected result).

Please note that using floating point arithmetic for calulation would solve both this bug and #15827 as the lack of synchronization will then result in less than 1px of error.

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