Uploaded image for project: 'Qt'
  1. Qt
  2. QTBUG-43811

QML animation running too fast on Windows 7

XMLWordPrintable

      Consider the following simple example:

      import QtQuick 2.0

Rectangle {
    id: root
    width: 800
    height: 600
    color: "black"
    focus: true

    Rectangle {
        id: rect
        width: 150
        height: parent.height
	color: "seagreen"
        visible: animation.running

        NumberAnimation on x {
            id: animation
            from: -rect.width
            to: root.width
            loops: Animation.Infinite
            duration: 4000
            running: false
        }
    }

    Keys.onSpacePressed: animation.running = true
}

      The speed of green bar is incosistent when switching between different versions of Qt on Windows 7 (x64). The speed is equal and as expected for versions 5.1.1, 5.2.1, and 5.3. Alas, on 5.4 animation is running approximately 2 times faster than desired.

      No such behaviour for Mac OS X 10.10, and Ubuntu 12.02 (verified for the same list of Qt versions).

        1. Radeon settings.png
          111 kB
          Elias Steurer
        No reviews matched the request. Check your Options in the drop-down menu of this sections header.

            sletta Gunnar Sletta
            dvolosnykh Dmitry Volosnykh
            Votes:
            1 Vote for this issue
            Watchers:
            6 Start watching this issue

              Created:
              Updated:
              Resolved:

                There are no open Gerrit changes