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<h1 class="title">Visualizer.qml Example File</h1>
<span class="subtitle">audio-visualizer-qml/Visualizer.qml</span>
<!-- $$$audio-visualizer-qml/Visualizer.qml-description -->
<div class="descr"> <a name="details"></a>
<pre class="qml">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt3D module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** 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
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
import Qt3D.Core 2.0
import Qt3D.Render 2.0
import Qt3D.Extras 2.0
import QtQuick 2.2 as QQ2
<span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> {
<span class="name">id</span>: <span class="name">sceneRoot</span>
property <span class="type">int</span> <span class="name">barRotationTimeMs</span>: <span class="number">1</span>
property <span class="type">int</span> <span class="name">numberOfBars</span>: <span class="number">1</span>
property <span class="type">string</span> <span class="name">animationState</span>: <span class="string">"stopped"</span>
property <span class="type">real</span> <span class="name">titleStartAngle</span>: <span class="number">95</span>
property <span class="type">real</span> <span class="name">titleStopAngle</span>: <span class="number">5</span>
<span class="name">onAnimationStateChanged</span>: {
<span class="keyword">if</span> (<span class="name">animationState</span> <span class="operator">==</span> <span class="string">"playing"</span>) {
<span class="name">mediaPlayer</span>.<span class="name">play</span>()
<span class="keyword">if</span> (<span class="name">progressTransformAnimation</span>.<span class="name">paused</span>)
<span class="name">progressTransformAnimation</span>.<span class="name">resume</span>()
<span class="keyword">else</span>
<span class="name">progressTransformAnimation</span>.<span class="name">start</span>()
} <span class="keyword">else</span> <span class="keyword">if</span> (<span class="name">animationState</span> <span class="operator">==</span> <span class="string">"paused"</span>) {
<span class="name">mediaPlayer</span>.<span class="name">pause</span>()
<span class="keyword">if</span> (<span class="name">progressTransformAnimation</span>.<span class="name">running</span>)
<span class="name">progressTransformAnimation</span>.<span class="name">pause</span>()
} <span class="keyword">else</span> {
<span class="name">mediaPlayer</span>.<span class="name">stop</span>()
<span class="name">progressTransformAnimation</span>.<span class="name">stop</span>()
<span class="name">progressTransform</span>.<span class="name">progressAngle</span> <span class="operator">=</span> <span class="name">progressTransform</span>.<span class="name">defaultStartAngle</span>
}
}
<span class="type">QQ2</span>.Item {
<span class="name">id</span>: <span class="name">stateItem</span>
<span class="name">state</span>: <span class="name">animationState</span>
<span class="name">states</span>: [
<span class="type">QQ2</span>.State {
<span class="name">name</span>: <span class="string">"playing"</span>
<span class="type">QQ2</span>.PropertyChanges {
<span class="name">target</span>: <span class="name">titlePrism</span>
<span class="name">titleAngle</span>: <span class="name">titleStopAngle</span>
}
},
<span class="type">QQ2</span>.State {
<span class="name">name</span>: <span class="string">"paused"</span>
<span class="type">QQ2</span>.PropertyChanges {
<span class="name">target</span>: <span class="name">titlePrism</span>
<span class="name">titleAngle</span>: <span class="name">titleStopAngle</span>
}
},
<span class="type">QQ2</span>.State {
<span class="name">name</span>: <span class="string">"stopped"</span>
<span class="type">QQ2</span>.PropertyChanges {
<span class="name">target</span>: <span class="name">titlePrism</span>
<span class="name">titleAngle</span>: <span class="name">titleStartAngle</span>
}
}
]
<span class="name">transitions</span>: <span class="name">QQ2</span>.Transition {
<span class="type">QQ2</span>.NumberAnimation {
<span class="name">property</span>: <span class="string">"titleAngle"</span>
<span class="name">duration</span>: <span class="number">2000</span>
<span class="name">running</span>: <span class="number">false</span>
}
}
}
<span class="keyword">function</span> <span class="name">startVisualization</span>() {
<span class="name">progressTransformAnimation</span>.<span class="name">duration</span> <span class="operator">=</span> <span class="name">mediaPlayer</span>.<span class="name">duration</span>
<span class="name">mainview</span>.<span class="name">state</span> <span class="operator">=</span> <span class="string">"playing"</span>
<span class="name">progressTransformAnimation</span>.<span class="name">start</span>()
}
<span class="type"><a href="qml-qt3d-render-camera.html">Camera</a></span> {
<span class="name">id</span>: <span class="name">camera</span>
<span class="name">projectionType</span>: <span class="name">CameraLens</span>.<span class="name">PerspectiveProjection</span>
<span class="name">fieldOfView</span>: <span class="number">45</span>
<span class="name">aspectRatio</span>: <span class="number">1820</span> <span class="operator">/</span> <span class="number">1080</span>
<span class="name">nearPlane</span>: <span class="number">0.1</span>
<span class="name">farPlane</span>: <span class="number">1000.0</span>
<span class="name">position</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0.014</span>, <span class="number">0.956</span>, <span class="number">2.178</span>)
<span class="name">upVector</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0.0</span>, <span class="number">1.0</span>, <span class="number">0.0</span>)
<span class="name">viewCenter</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0.0</span>, <span class="number">0.7</span>, <span class="number">0.0</span>)
}
<span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> {
<span class="name">components</span>: [
<span class="type"><a href="qml-qt3d-render-directionallight.html">DirectionalLight</a></span> {
<span class="name">intensity</span>: <span class="number">0.9</span>
<span class="name">worldDirection</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0</span>, <span class="number">0.6</span>, -<span class="number">1</span>)
}
]
}
<span class="type"><a href="qml-qt3d-render-rendersettings.html">RenderSettings</a></span> {
<span class="name">id</span>: <span class="name">external_forward_renderer</span>
<span class="name">activeFrameGraph</span>: <span class="name">ForwardRenderer</span> {
<span class="name">camera</span>: <span class="name">camera</span>
<span class="name">clearColor</span>: <span class="string">"transparent"</span>
}
}
<span class="name">components</span>: [<span class="name">external_forward_renderer</span>]
<span class="comment">// Bars</span>
<span class="type"><a href="qml-qt3d-extras-cuboidmesh.html">CuboidMesh</a></span> {
<span class="name">id</span>: <span class="name">barMesh</span>
<span class="name">xExtent</span>: <span class="number">0.1</span>
<span class="name">yExtent</span>: <span class="number">0.1</span>
<span class="name">zExtent</span>: <span class="number">0.1</span>
}
<span class="type"><a href="qml-qt3d-core-nodeinstantiator.html">NodeInstantiator</a></span> {
<span class="name">id</span>: <span class="name">collection</span>
property <span class="type">int</span> <span class="name">maxCount</span>: <span class="name">parent</span>.<span class="name">numberOfBars</span>
<span class="name">model</span>: <span class="name">maxCount</span>
<span class="name">delegate</span>: <span class="name">BarEntity</span> {
<span class="name">id</span>: <span class="name">cubicEntity</span>
<span class="name">entityMesh</span>: <span class="name">barMesh</span>
<span class="name">rotationTimeMs</span>: <span class="name">sceneRoot</span>.<span class="name">barRotationTimeMs</span>
<span class="name">entityIndex</span>: <span class="name">index</span>
<span class="name">entityCount</span>: <span class="name">sceneRoot</span>.<span class="name">numberOfBars</span>
<span class="name">entityAnimationsState</span>: <span class="name">animationState</span>
<span class="name">magnitude</span>: <span class="number">0</span>
}
}
<span class="comment">// TitlePrism</span>
<span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> {
<span class="name">id</span>: <span class="name">titlePrism</span>
property <span class="type">real</span> <span class="name">titleAngle</span>: <span class="name">titleStartAngle</span>
<span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> {
<span class="name">id</span>: <span class="name">titlePlane</span>
<span class="type"><a href="qml-qt3d-extras-planemesh.html">PlaneMesh</a></span> {
<span class="name">id</span>: <span class="name">titlePlaneMesh</span>
<span class="name">width</span>: <span class="number">550</span>
<span class="name">height</span>: <span class="number">100</span>
}
<span class="type"><a href="qml-qt3d-core-transform.html">Transform</a></span> {
<span class="name">id</span>: <span class="name">titlePlaneTransform</span>
<span class="name">scale</span>: <span class="number">0.003</span>
<span class="name">translation</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0</span>, <span class="number">0.11</span>, <span class="number">0</span>)
}
<span class="type"><a href="qml-qt3d-extras-normaldiffusemapalphamaterial.html">NormalDiffuseMapAlphaMaterial</a></span> {
<span class="name">id</span>: <span class="name">titlePlaneMaterial</span>
<span class="name">diffuse</span>: <span class="name">TextureLoader</span> { <span class="name">source</span>: <span class="string">"qrc:/images/demotitle.png"</span> }
<span class="name">normal</span>: <span class="name">TextureLoader</span> { <span class="name">source</span>: <span class="string">"qrc:/images/normalmap.png"</span> }
<span class="name">shininess</span>: <span class="number">1.0</span>
}
<span class="name">components</span>: [<span class="name">titlePlaneMesh</span>, <span class="name">titlePlaneMaterial</span>, <span class="name">titlePlaneTransform</span>]
}
<span class="comment">// Song title</span>
<span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> {
<span class="name">id</span>: <span class="name">songTitlePlane</span>
<span class="type"><a href="qml-qt3d-extras-planemesh.html">PlaneMesh</a></span> {
<span class="name">id</span>: <span class="name">songPlaneMesh</span>
<span class="name">width</span>: <span class="number">550</span>
<span class="name">height</span>: <span class="number">100</span>
}
<span class="type"><a href="qml-qt3d-core-transform.html">Transform</a></span> {
<span class="name">id</span>: <span class="name">songPlaneTransform</span>
<span class="name">scale</span>: <span class="number">0.003</span>
<span class="name">rotationX</span>: <span class="number">90</span>
<span class="name">translation</span>: <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">0</span>, -<span class="number">0.03</span>, <span class="number">0.13</span>)
}
property <span class="type"><a href="qml-qt3d-render-material.html">Material</a></span> <span class="name">songPlaneMaterial</span>: <span class="name">NormalDiffuseMapAlphaMaterial</span> {
<span class="name">diffuse</span>: <span class="name">TextureLoader</span> { <span class="name">source</span>: <span class="string">"qrc:/images/songtitle.png"</span> }
<span class="name">normal</span>: <span class="name">TextureLoader</span> { <span class="name">source</span>: <span class="string">"qrc:/images/normalmap.png"</span> }
<span class="name">shininess</span>: <span class="number">1.0</span>
}
<span class="name">components</span>: [<span class="name">songPlaneMesh</span>, <span class="name">songPlaneMaterial</span>, <span class="name">songPlaneTransform</span>]
}
property <span class="type"><a href="qml-qt3d-core-transform.html">Transform</a></span> <span class="name">titlePrismPlaneTransform</span>: <span class="name">Transform</span> {
<span class="name">matrix</span>: {
var <span class="name">m</span> = <span class="name">Qt</span>.<span class="name">matrix4x4</span>()
<span class="name">m</span>.<span class="name">translate</span>(<span class="name">Qt</span>.<span class="name">vector3d</span>(-<span class="number">0.5</span>, <span class="number">1.3</span>, -<span class="number">0.4</span>))
<span class="name">m</span>.<span class="name">rotate</span>(<span class="name">titlePrism</span>.<span class="name">titleAngle</span>, <span class="name">Qt</span>.<span class="name">vector3d</span>(<span class="number">1</span>, <span class="number">0</span>, <span class="number">0</span>))
<span class="keyword">return</span> <span class="name">m</span>;
}
}
<span class="name">components</span>: [<span class="name">titlePlane</span>, <span class="name">songTitlePlane</span>, <span class="name">titlePrismPlaneTransform</span>]
}
<span class="comment">// Circle to create the reflection effect</span>
<span class="type"><a href="qml-qt3d-render-mesh.html">Mesh</a></span> {
<span class="name">id</span>: <span class="name">circleMesh</span>
<span class="name">source</span>: <span class="string">"qrc:/meshes/circle.obj"</span>
}
<span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> {
<span class="name">id</span>: <span class="name">circleEntity</span>
property <span class="type"><a href="qml-qt3d-render-material.html">Material</a></span> <span class="name">circleMaterial</span>: <span class="name">PhongAlphaMaterial</span> {
<span class="name">alpha</span>: <span class="number">0.4</span>
<span class="name">ambient</span>: <span class="string">"black"</span>
<span class="name">diffuse</span>: <span class="string">"black"</span>
<span class="name">specular</span>: <span class="string">"black"</span>
<span class="name">shininess</span>: <span class="number">10000</span>
}
<span class="name">components</span>: [<span class="name">circleMesh</span>, <span class="name">circleMaterial</span>]
}
<span class="comment">// Progress</span>
<span class="type"><a href="qml-qt3d-render-mesh.html">Mesh</a></span> {
<span class="name">id</span>: <span class="name">progressMesh</span>
<span class="name">source</span>: <span class="string">"qrc:/meshes/progressbar.obj"</span>
}
<span class="type"><a href="qml-qt3d-core-transform.html">Transform</a></span> {
<span class="name">id</span>: <span class="name">progressTransform</span>
property <span class="type">real</span> <span class="name">defaultStartAngle</span>: -<span class="number">90</span>
property <span class="type">real</span> <span class="name">progressAngle</span>: <span class="name">defaultStartAngle</span>
<span class="name">rotationY</span>: <span class="name">progressAngle</span>
}
<span class="type"><a href="qml-qt3d-core-entity.html">Entity</a></span> {
property <span class="type"><a href="qml-qt3d-render-material.html">Material</a></span> <span class="name">progressMaterial</span>: <span class="name">PhongMaterial</span> {
<span class="name">ambient</span>: <span class="string">"#80C342"</span>
<span class="name">diffuse</span>: <span class="string">"black"</span>
}
<span class="name">components</span>: [<span class="name">progressMesh</span>, <span class="name">progressMaterial</span>, <span class="name">progressTransform</span>]
}
<span class="type">QQ2</span>.NumberAnimation {
<span class="name">id</span>: <span class="name">progressTransformAnimation</span>
<span class="name">target</span>: <span class="name">progressTransform</span>
<span class="name">property</span>: <span class="string">"progressAngle"</span>
<span class="name">duration</span>: <span class="number">0</span>
<span class="name">running</span>: <span class="number">false</span>
<span class="name">from</span>: <span class="name">progressTransform</span>.<span class="name">defaultStartAngle</span>
<span class="name">to</span>: -<span class="number">270</span>
<span class="name">onStopped</span>: <span class="keyword">if</span> (<span class="name">animationState</span> <span class="operator">!=</span> <span class="string">"stopped"</span>) <span class="name">animationState</span> <span class="operator">=</span> <span class="string">"stopped"</span>
}
}
</pre>
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<!-- @@@audio-visualizer-qml/Visualizer.qml -->
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