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OverviewFelgo 1 Support › Rotation around x or y axis not working?


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  • #4735



    I’m currently porting a game made in QML for Meego to Felgo. Most things works fine but I have some issues with the “card flip”-animations that were implemented using  Rotation element around y axis. I made a small test application to test the Rotation element and it seems to work fine to rotate an object around z axis, but not around x or y.

    Here is my code:

    import VPlay 1.0
    import QtQuick 1.1
    GameWindow {
        activeScene: scene
        width: 640
        height: 960
        Scene {
            id: scene
            width: 320
            height: 480
            Rectangle {
                anchors.fill: parent
                color: "black"
                id: rectangle
                width: 100
                height: 100
                color: "red"
                anchors.centerIn: parent
                transform:  Rotation {
                    id: rotation
                    origin.x: rectangle.width/2
                    origin.y: rectangle.height/2
                    axis.x: 0; axis.y: 1; axis.z: 0     // set axis.y to 1 to rotate around y-axis
                    angle: 45    // the default angle

    Will this be fixed anytime soon?

    Thank you!

    – Mathias


    Felgo Team

    Hi Matthias,

    I’m sorry, but with our current renderer flipping is not possible. You could create the animation in any program and save the single sprite frames into a sprite sheet, and then play the animation sequence like an animated gif. Would this be sufficient for your use-case? Another workaround would be to animate the xScale of the sprite from 1 to 0, then change the sprite image, and then animate the xScale from 0 to 1.

    Cheers, Chris



    In my case using sprites would not be practical. Animating the width will work fine in my case even if the effect is not as nice as the QML flip rotation. Thanx for the input.

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