Nebula Effect

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Ported from this example in HTML5 example, Source code

import QtQuick 1.1

Rectangle {
    width: 570
    height: 570
    color: "black"

    Repeater {
        id: repeater
        model: 8

        Rectangle {
            id: rect
            visible: false
            color: "transparent"
            clip: true
            width: 285
            height: 285
            x: parent.width / 2 - width / 2
            y: parent.height / 2 - height / 2

            Timer {
                id: timer
                interval: 500 * index
                running: true
                repeat: false
                onTriggered: {
                    rect.visible = true
                    animation.running = true
                }
            }

            Image {
                source: "nebula.jpg"
                smooth: true
                x: –1 * (Math.random() * 285) >> 0
                y: –1 * (Math.random() * 285) >> 0
            }

            ParallelAnimation {
                id: animation
                running: false
                loops: Animation.Infinite

                SequentialAnimation {
                    NumberAnimation {
                        target: rect
                        property: "opacity"
                        from: .0
                        to: 1.0
                        duration: 3000
                    }

                    NumberAnimation {
                        target: rect
                        property: "opacity"
                        from: 1.0
                        to: .0
                        duration: 500
                    }
                }

                NumberAnimation {
                    target: rect
                    property: "scale"
                    from: 2.0
                    to: 4.0
                    duration: 4000
                }
            }
        }
    }
}

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