- Qt 5.3
- Qt Multimedia
- QML Video Shader Effects Example
- EffectShockwave.qml Example File
- Qt 5.3.2 Reference Documentation

# EffectShockwave.qml Example File

video/qmlvideofx/qml/qmlvideofx/EffectShockwave.qml

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    import QtQuick 2.0

    Effect {
        id: root
        parameters: ListModel {
            ListElement {
                name: "Amplitude"
                value: 0.5
            }
        }

        // Transform slider values, and bind result to shader uniforms
        property real granularity: parameters.get(0).value * 20
        property real weight: parameters.get(0).value

        property real centerX
        property real centerY
        property real time

        SequentialAnimation {
            running: true
            loops: Animation.Infinite
            ScriptAction {
                script: {
                    centerX = Math.random()
                    centerY = Math.random()
                }
            }
            NumberAnimation {
                target: root
                property: "time"
                from: 0
                to: 1
                duration: 1000
            }
        }

        fragmentShaderFilename: "shockwave.fsh"
    }