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Qt Quick MultiEffect Example: EffectsBench

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import QtQuick 2.12 import QtQuick.Window 2.12 import QtGraphicalEffects 1.12 import "qrc:/quickmultieffect" Window { id: mainWindow // Multiplier for resolution independency readonly property real dp: 0.2 + Math.min(width, height) / 1200 // Size of a single item property real itemSize: 256 // How many effects are applied, 1-4 // 1: blur, 2: +desaturate, 3: +shadow, 4: +mask property int effectsAmount: 4 // Amount of items to render property int items: 15 // When false QuickMultiEffect is used, when true GraphicalEffects is used. property bool showGraphicalEffect: false property real animation1: 0.0 property real animation2: 0.0 property bool animationRunning: true visible: true width: 1280 height: 720 title: qsTr("QuickMultiEffect EffectsBench") color: "#404040" SequentialAnimation on animation1 { loops: Animation.Infinite paused: !mainWindow.animationRunning NumberAnimation { to: 1.0 duration: 2000 easing.type: Easing.InOutQuad } NumberAnimation { to: 0.0 duration: 2000 easing.type: Easing.InOutQuad } } NumberAnimation on animation2 { loops: Animation.Infinite paused: !mainWindow.animationRunning duration: 1000 * items from: 0 to: Math.PI * 2 } MouseArea { anchors.fill: parent onClicked: { mainWindow.animationRunning = !mainWindow.animationRunning; } } Rectangle { id: effectTypeButton z: 2 anchors.top: parent.top anchors.left: parent.left anchors.margins: 10 width: 200 height: 40 color: "#d0d0d0" border.color: "#000000" border.width: 1 Text { anchors.centerIn: parent text: mainWindow.showGraphicalEffect ? "Qt Graphical Effects" : "QuickMultiEffect" font.pixelSize: 16 color: "#202020" } MouseArea { anchors.fill: parent anchors.margins: -10 onClicked: { mainWindow.showGraphicalEffect = !mainWindow.showGraphicalEffect; } } } Item { id: testSourceItem anchors.centerIn: parent width: mainWindow.itemSize height: mainWindow.itemSize layer.enabled: true visible: false Image { anchors.fill: parent anchors.margins: 30 fillMode: Image.PreserveAspectFit source: "images/Built_with_Qt.png" } } Image { id: testMaskItem source: "mask.png" visible: false } Repeater { id: repeater model: mainWindow.items Item { readonly property real posX: (index - (mainWindow.items - 1) / 2) / mainWindow.items readonly property real posY: Math.sin(animation2 * (index + 1)) anchors.centerIn: parent anchors.horizontalCenterOffset: posX * mainWindow.width * 0.6 anchors.verticalCenterOffset: posY * mainWindow.height * 0.2 width: testSourceItem.width height: testSourceItem.height QuickMultiEffect { anchors.fill: parent visible: !mainWindow.showGraphicalEffect source: testSourceItem paddingEnabled: false blurEnabled: true blurMax: 16 blur: 1.0 - mainWindow.animation1 saturationEnabled: effectsAmount > 1 saturation: -1.0 * mainWindow.animation1 shadowEnabled: effectsAmount > 2 shadowHorizontalOffset: 10 - 20 * mainWindow.animation1 shadowVerticalOffset: 10 shadowBlur: 1.0 maskEnabled: effectsAmount > 3 maskSource: testMaskItem maskThresholdLow: mainWindow.animation1 * 0.8 maskSpreadLow: 0.2 } Item { anchors.fill: parent visible: mainWindow.showGraphicalEffect FastBlur { id: effect1 anchors.fill: parent source: testSourceItem transparentBorder: false radius: 16 * (1.0 - mainWindow.animation1) visible: effectsAmount == 1 } Desaturate { id: effect2 anchors.fill: parent source: effectsAmount > 1 ? effect1 : null visible: effectsAmount == 2 desaturation: mainWindow.animation1 } DropShadow { id: effect3 anchors.fill: parent z: -1 source: effectsAmount > 2 ? effect2 : null // DropShadow is applied for already blurred item so // blur amounts don't fully match with QuickMultiEffect. samples: 8 horizontalOffset: 10 - 20 * mainWindow.animation1 verticalOffset: 10 visible: effectsAmount == 3 } ThresholdMask { id: effect4 anchors.fill: parent source: effectsAmount > 3 ? effect3 : null maskSource: testMaskItem threshold: mainWindow.animation1 * 0.8 spread: 0.2 visible: effectsAmount == 4 } } } } FpsItem { id: fpsItem anchors.right: parent.right } }