[Interest] QML animation flicker

[Jarno Seppänen]

Hi,
I'm trying out Qt 5.0.0-beta1, but I'm seeing some unexpected
animation flicker. I have a rotating rectangle which starts to flicker
during a simultaneous ColorAnimation, without it the rotation is
smooth. Is this an issue with my setup and should I change my QML code
somehow? I've gotten similar results on two Ubuntu laptops, running
11.04 and 12.04.

------------------------ start code ------------------------

import QtQuick 2.0
import QtGraphicalEffects 1.0

FocusScope {

    SequentialAnimation {
        loops: Animation.Infinite; running: true
        PauseAnimation { duration: 3000 }
        ColorAnimation { target: glow; property: "color"; to:
"#444444"; duration: 3000; easing.type: Easing.InOutQuad }
        PauseAnimation { duration: 3000 }
        ColorAnimation { target: glow; property: "color"; to: "black";
duration: 3000; easing.type: Easing.InOutQuad }
    }

    RadialGradient {
        gradient: Gradient {
            GradientStop { id: glow; position: 0.0; color: "black" }
            GradientStop { position: 0.5; color: "black" }
        }
        anchors.fill: parent
    }

    Rectangle {
        width: 3000
        height: 100
        color:"green"
        NumberAnimation on rotation {
            from:0
            to:360
            loops:-1
            duration:3000
        }
        anchors.centerIn:parent
    }
}

------------------------ end code ------------------------

Regards,
Jarno