[Webkit-unassigned] [Bug 73410] New: Standardized API to animate spritesheets

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73410

           Summary: Standardized API to animate spritesheets
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: CSS
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: pbakaus at zynga.com


The currently fastest way to animate spritesheets (pngs with individual frames on a large sheet) on browsers that hardware accelerate 3D css transformed content is to put the actual spritesheet into a <div> with overflow hidden (set to the target frame size) and "shift" the spritesheet programmatically in JS via translate3d(). This is non-trivial, and my guess is that not only would a standardized API add clarity, but also might be further optimized.

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