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<h1 class="title">main.qml Example File</h1>
<span class="subtitle">scenegraph/textureinthread/main.qml</span>
<!-- $$$scenegraph/textureinthread/main.qml-description -->
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<pre class="qml">
/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the examples of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
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** accordance with the commercial license agreement provided with the
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** information use the contact form at https://www.qt.io/contact-us.
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** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
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import QtQuick 2.0
import SceneGraphRendering 1.0
Item {
width: 400
height: 400
// The checkers background
ShaderEffect {
id: tileBackground
anchors.fill: parent
property real tileSize: 16
property color color1: Qt.rgba(0.9, 0.9, 0.9, 1);
property color color2: Qt.rgba(0.85, 0.85, 0.85, 1);
property size pixelSize: Qt.size(width / tileSize, height / tileSize);
fragmentShader:
"
uniform lowp vec4 color1;
uniform lowp vec4 color2;
uniform highp vec2 pixelSize;
varying highp vec2 qt_TexCoord0;
void main() {
highp vec2 tc = sign(sin(3.14159265358979323846 * qt_TexCoord0 * pixelSize));
if (tc.x != tc.y)
gl_FragColor = color1;
else
gl_FragColor = color2;
}
"
}
Renderer {
id: renderer
anchors.fill: parent
anchors.margins: 10
// The transform is just to show something interesting..
transform: [
Rotation { id: rotation; axis.x: 0; axis.z: 0; axis.y: 1; angle: 0; origin.x: renderer.width / 2; origin.y: renderer.height / 2; },
Translate { id: txOut; x: -renderer.width / 2; y: -renderer.height / 2 },
Scale { id: scale; },
Translate { id: txIn; x: renderer.width / 2; y: renderer.height / 2 }
]
Behavior on opacity { NumberAnimation { duration: 500 } }
opacity: 0
Component.onCompleted: renderer.opacity = 1;
}
// Just to show something interesting
SequentialAnimation {
PauseAnimation { duration: 5000 }
ParallelAnimation {
NumberAnimation { target: scale; property: "xScale"; to: 0.6; duration: 1000; easing.type: Easing.InOutBack }
NumberAnimation { target: scale; property: "yScale"; to: 0.6; duration: 1000; easing.type: Easing.InOutBack }
}
NumberAnimation { target: rotation; property: "angle"; to: 80; duration: 1000; easing.type: Easing.InOutCubic }
NumberAnimation { target: rotation; property: "angle"; to: -80; duration: 1000; easing.type: Easing.InOutCubic }
NumberAnimation { target: rotation; property: "angle"; to: 0; duration: 1000; easing.type: Easing.InOutCubic }
NumberAnimation { target: renderer; property: "opacity"; to: 0.5; duration: 1000; easing.type: Easing.InOutCubic }
PauseAnimation { duration: 1000 }
NumberAnimation { target: renderer; property: "opacity"; to: 0.8; duration: 1000; easing.type: Easing.InOutCubic }
ParallelAnimation {
NumberAnimation { target: scale; property: "xScale"; to: 1; duration: 1000; easing.type: Easing.InOutBack }
NumberAnimation { target: scale; property: "yScale"; to: 1; duration: 1000; easing.type: Easing.InOutBack }
}
running: true
loops: Animation.Infinite
}
Rectangle {
id: labelFrame
anchors.margins: -10
radius: 5
color: "white"
border.color: "black"
opacity: 0.8
anchors.fill: label
}
Text {
id: label
anchors.bottom: renderer.bottom
anchors.left: renderer.left
anchors.right: renderer.right
anchors.margins: 20
wrapMode: Text.WordWrap
text: "The blue rectangle with the vintage 'Q' is an FBO, rendered by the application in a dedicated background thread. The background thread juggles two FBOs, one that is being rendered to and one for displaying. The texture to display is posted to the scene graph and displayed using a QSGSimpleTextureNode."
}
}
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<!-- @@@scenegraph/textureinthread/main.qml -->
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distrib
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Mageia
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7
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i586
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media
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core-updates
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by-pkgid
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6e2327ca1c896c6d674ae53117299f21
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files
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1673
