author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 May 2010 13:42:11 +0300 | |
changeset 8 | 71781823f776 |
parent 5 | 453da2cfceef |
permissions | -rw-r--r-- |
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/**************************************************************************** |
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** |
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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** All rights reserved. |
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** Contact: Nokia Corporation (qt-info@nokia.com) |
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** |
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** This file is part of the Qt3D module of the Qt Toolkit. |
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** |
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** $QT_BEGIN_LICENSE:BSD$ |
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** You may use this file under the terms of the BSD license as follows: |
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** |
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** "Redistribution and use in source and binary forms, with or without |
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** modification, are permitted provided that the following conditions are |
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** met: |
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** * Redistributions of source code must retain the above copyright |
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** notice, this list of conditions and the following disclaimer. |
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** * Redistributions in binary form must reproduce the above copyright |
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** notice, this list of conditions and the following disclaimer in |
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** the documentation and/or other materials provided with the |
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** distribution. |
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** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor |
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** the names of its contributors may be used to endorse or promote |
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** products derived from this software without specific prior written |
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** permission. |
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** |
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." |
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** $QT_END_LICENSE$ |
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** |
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****************************************************************************/ |
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|
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#include "view.h" |
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#include "teapot.h" |
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#include "cube.h" |
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#include <QtCore/qdebug.h> |
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#include <QtCore/qtimer.h> |
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#include <stdio.h> |
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#include "qaccelerometer.h" |
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#if defined(QT_OPENGL_ES) |
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#define USE_BUFFERS 1 |
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#endif |
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class smoothedaccelerometerfilter : public QObject, public QAccelerometerFilter |
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{ |
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qreal prevX; |
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qreal prevY; |
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qreal prevZ; |
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bool havePrev; |
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|
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public: |
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smoothedaccelerometerfilter(QObject *parent = 0) |
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: QObject(parent) |
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, QAccelerometerFilter() |
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, prevX(0) |
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, prevY(0) |
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, prevZ(0) |
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, havePrev(false) |
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{ |
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} |
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bool filter(QAccelerometerReading *reading) |
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{ |
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// Smooth out the reported values. Large changes are applied as-is, |
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// and small jitters smooth to the rest position. |
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if (havePrev) { |
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qreal xdiff = reading->x() - prevX; |
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qreal ydiff = reading->y() - prevY; |
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qreal zdiff = reading->z() - prevZ; |
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#define threshold 0.196133f |
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if (qAbs(xdiff) < threshold && qAbs(ydiff) < threshold && qAbs(zdiff) < threshold) { |
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reading->setX(prevX + xdiff * 0.1f); |
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reading->setY(prevY + ydiff * 0.1f); |
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reading->setZ(prevZ + zdiff * 0.1f); |
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} |
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} |
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prevX = reading->x(); |
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prevY = reading->y(); |
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prevZ = reading->z(); |
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havePrev = true; |
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return true; |
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} |
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}; |
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|
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View::View(QWidget *parent) |
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: QGLWidget(parent), |
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sensitivity(0.1f), |
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painter(0), |
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showFrameRate(false) |
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{ |
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mainCamera = new Camera(this); |
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|
102 |
roomCamera = new Camera(this); |
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|
103 |
roomCamera->setAdjustForAspectRatio(false); |
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|
104 |
|
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|
105 |
sensor = new QAccelerometer(this); |
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|
106 |
connect(sensor, SIGNAL(readingChanged()), this, SLOT(accelerometerTimeout())); |
8
71781823f776
Revision: 201019
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parents:
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|
107 |
sensor->addFilter(new smoothedaccelerometerfilter(this)); |
4
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|
108 |
sensor->start(); |
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|
109 |
|
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|
110 |
time.start(); |
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|
111 |
|
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|
112 |
vertexBuffer = 0; |
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|
113 |
indexBuffer = 0; |
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|
114 |
} |
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|
115 |
|
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|
116 |
View::~View() |
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117 |
{ |
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118 |
delete painter; |
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119 |
} |
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120 |
|
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121 |
void View::resizeGL(int width, int height) |
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122 |
{ |
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123 |
glViewport(0, 0, width, height); |
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124 |
} |
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|
125 |
|
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126 |
void View::initializeGL() |
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127 |
{ |
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128 |
#if defined(QT_OPENGL_ES_2) |
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129 |
painter = new ShaderPainter(); |
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130 |
#else |
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131 |
painter = new FixedFunctionPainter(); |
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132 |
#endif |
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|
133 |
|
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134 |
glEnable(GL_DEPTH_TEST); |
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|
135 |
|
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|
136 |
roomMaterialBack = new Material(); |
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137 |
roomMaterialBack->setDiffuseColor(QColor(128, 100, 0)); |
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|
138 |
|
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|
139 |
roomMaterialLeftRight = new Material(); |
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140 |
roomMaterialLeftRight->setDiffuseColor(Qt::cyan); |
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Revision: 201015
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|
141 |
|
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142 |
roomMaterialTopBottom = new Material(); |
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143 |
roomMaterialTopBottom->setDiffuseColor(Qt::yellow); |
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|
144 |
|
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|
145 |
cubeMaterial = new Material(); |
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|
146 |
cubeMaterial->setColor(QColor(170, 202, 0)); |
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|
147 |
|
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|
148 |
teapotMaterial = new Material(); |
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|
149 |
teapotMaterial->setAmbientColor(QColor(192, 150, 128)); |
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|
150 |
teapotMaterial->setSpecularColor(QColor(60, 60, 60)); |
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|
151 |
teapotMaterial->setShininess(128); |
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|
152 |
|
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|
153 |
roomModel = new LightModel(this); |
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Revision: 201015
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parents:
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|
154 |
roomModel->setAmbientSceneColor(Qt::white); |
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Revision: 201015
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parents:
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|
155 |
roomModel->setViewerPosition(LightModel::LocalViewer); |
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|
156 |
|
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Revision: 201015
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|
157 |
normalModel = new LightModel(this); |
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diff
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|
158 |
|
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Revision: 201015
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|
159 |
Light *light = new Light(this); |
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Revision: 201015
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|
160 |
light->setPosition(QVector3D(0.0f, 0.0f, 3.0f)); |
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Revision: 201015
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parents:
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|
161 |
painter->setLight(light); |
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Revision: 201015
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parents:
diff
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|
162 |
|
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Revision: 201015
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parents:
diff
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|
163 |
texture = bindTexture(QImage(QLatin1String(":/qtlogo.png"))); |
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Revision: 201015
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parents:
diff
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|
164 |
|
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Revision: 201015
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parents:
diff
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|
165 |
#ifdef USE_BUFFERS |
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Revision: 201015
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parents:
diff
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|
166 |
// Upload the teapot data into GL buffers for quicker rendering. |
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Revision: 201015
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parents:
diff
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|
167 |
glGenBuffers(1, &vertexBuffer); |
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Revision: 201015
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parents:
diff
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|
168 |
glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
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Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
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|
169 |
glBufferData(GL_ARRAY_BUFFER, |
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Revision: 201015
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parents:
diff
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|
170 |
teapotVertexCount * teapotVertexStride * sizeof(float), |
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Revision: 201015
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parents:
diff
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|
171 |
teapotVertexData, GL_STATIC_DRAW); |
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Revision: 201015
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parents:
diff
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|
172 |
glBindBuffer(GL_ARRAY_BUFFER, 0); |
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Revision: 201015
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parents:
diff
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|
173 |
|
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Revision: 201015
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parents:
diff
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|
174 |
glGenBuffers(1, &indexBuffer); |
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Revision: 201015
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parents:
diff
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|
175 |
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer); |
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Revision: 201015
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parents:
diff
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|
176 |
glBufferData(GL_ELEMENT_ARRAY_BUFFER, |
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Revision: 201015
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parents:
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|
177 |
teapotTriangleCount * 3 * sizeof(ushort), |
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Revision: 201015
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parents:
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|
178 |
teapotTriangleData, GL_STATIC_DRAW); |
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Revision: 201015
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parents:
diff
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|
179 |
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); |
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Revision: 201015
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|
180 |
#endif |
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Revision: 201015
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parents:
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|
181 |
} |
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Revision: 201015
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diff
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|
182 |
|
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Revision: 201015
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|
183 |
void View::paintGL() |
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Revision: 201015
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|
184 |
{ |
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Revision: 201015
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parents:
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|
185 |
if (showFrameRate) |
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Revision: 201015
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|
186 |
qWarning("time since last frame: %d ms", time.restart()); |
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Revision: 201015
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parents:
diff
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|
187 |
|
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Revision: 201015
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|
188 |
qreal aspectRatio = qreal(width()) / qreal(height()); |
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Revision: 201015
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parents:
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|
189 |
QMatrix4x4 mv, mv2; |
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Revision: 201015
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parents:
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|
190 |
QMatrix4x4 proj; |
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Revision: 201015
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|
191 |
|
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Revision: 201015
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parents:
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|
192 |
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); |
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Revision: 201015
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parents:
diff
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|
193 |
|
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Revision: 201015
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parents:
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|
194 |
mv = roomCamera->modelViewMatrix(); |
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Revision: 201015
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|
195 |
proj = roomCamera->projectionMatrix(aspectRatio); |
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Revision: 201015
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
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|
196 |
painter->setLightModel(roomModel); |
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Revision: 201015
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parents:
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|
197 |
painter->setMatrices(mv, proj); |
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Revision: 201015
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parents:
diff
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|
198 |
|
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Revision: 201015
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|
199 |
painter->selectMaterial(roomMaterialBack); |
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Revision: 201015
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|
200 |
painter->drawQuad(QVector3D(-3.0f, -3.0f, -15.0f), |
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Revision: 201015
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parents:
diff
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|
201 |
QVector3D( 3.0f, -3.0f, -15.0f), |
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Revision: 201015
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parents:
diff
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|
202 |
QVector3D( 3.0f, 3.0f, -15.0f), |
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Revision: 201015
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parents:
diff
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|
203 |
QVector3D(-3.0f, 3.0f, -15.0f), |
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Revision: 201015
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parents:
diff
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|
204 |
QVector3D(0.0f, 0.0f, 1.0f)); |
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Revision: 201015
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parents:
diff
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|
205 |
|
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painter->selectMaterial(roomMaterialLeftRight); |
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painter->drawQuad(QVector3D(-3.0f, -3.0f, -15.0f), |
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QVector3D(-3.0f, 3.0f, -15.0f), |
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QVector3D(-3.0f, 3.0f, 0.0f), |
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QVector3D(-3.0f, -3.0f, 0.0f), |
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QVector3D(1.0f, 0.0f, 0.0f)); |
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painter->drawQuad(QVector3D(3.0f, 3.0f, -15.0f), |
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QVector3D(3.0f, -3.0f, -15.0f), |
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QVector3D(3.0f, -3.0f, 0.0f), |
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QVector3D(3.0f, 3.0f, 0.0f), |
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QVector3D(-1.0f, 0.0f, 0.0f)); |
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217 |
|
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painter->selectMaterial(roomMaterialTopBottom); |
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painter->drawQuad(QVector3D(-3.0f, 3.0f, -15.0f), |
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QVector3D( 3.0f, 3.0f, -15.0f), |
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|
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QVector3D( 3.0f, 3.0f, 0.0f), |
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QVector3D(-3.0f, 3.0f, 0.0f), |
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QVector3D(0.0f, -1.0f, 0.0f)); |
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painter->drawQuad(QVector3D(-3.0f, -3.0f, -15.0f), |
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QVector3D(-3.0f, -3.0f, 0.0f), |
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QVector3D( 3.0f, -3.0f, 0.0f), |
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|
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QVector3D( 3.0f, -3.0f, -15.0f), |
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QVector3D(0.0f, 1.0f, 0.0f)); |
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229 |
|
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mv = mv2 = mainCamera->modelViewMatrix(); |
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proj = mainCamera->projectionMatrix(aspectRatio); |
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mv.translate(1.0f, -0.5f, 0.0f); |
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mv.rotate(45.0f, 1.0f, 1.0f, 1.0f); |
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painter->setMatrices(mv, proj); |
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painter->setLightModel(normalModel); |
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painter->selectTexturedMaterial(cubeMaterial); |
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painter->setVertices(cubeVertices, 8); |
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painter->setNormals(cubeVertices + 3, 8); |
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painter->setTexCoords(cubeVertices + 6, 8); |
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glDrawArrays(GL_TRIANGLES, 0, 36); |
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|
241 |
|
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mv2.translate(-0.8f, -1.5f, -3.0f); |
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painter->setMatrices(mv2, proj); |
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painter->selectMaterial(teapotMaterial); |
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#ifdef USE_BUFFERS |
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glBindBuffer(GL_ARRAY_BUFFER, vertexBuffer); |
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, indexBuffer); |
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painter->setVertices(0, 8); |
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painter->setNormals(reinterpret_cast<float *>(3 * sizeof(float)), 8); |
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painter->setTexCoords(reinterpret_cast<float *>(6 * sizeof(float)), 8); |
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glDrawElements(GL_TRIANGLES, teapotTriangleCount * 3, |
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GL_UNSIGNED_SHORT, 0); |
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glBindBuffer(GL_ARRAY_BUFFER, 0); |
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0); |
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#else |
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painter->setVertices(teapotVertexData, 8); |
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|
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painter->setNormals(teapotVertexData + 3, 8); |
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|
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painter->setTexCoords(teapotVertexData + 6, 8); |
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|
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glDrawElements(GL_TRIANGLES, teapotTriangleCount * 3, |
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GL_UNSIGNED_SHORT, teapotTriangleData); |
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|
261 |
#endif |
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|
262 |
} |
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|
263 |
|
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Revision: 201015
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|
264 |
void View::accelerometerTimeout() |
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|
265 |
{ |
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|
266 |
QVector3D g = gravity(); |
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|
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mainCamera->setMotionAdjustment(g); |
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Revision: 201015
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|
268 |
roomCamera->setMotionAdjustment(g); |
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|
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update(); |
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|
270 |
} |
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|
271 |
|
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#define ACCEL_TO_G(v) (v / 9.80665) |
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|
273 |
|
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Revision: 201015
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|
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QVector3D View::gravity() const |
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|
275 |
{ |
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Revision: 201015
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|
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qreal x = ACCEL_TO_G(sensor->reading()->x()) * sensitivity; |
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|
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qreal y = ACCEL_TO_G(sensor->reading()->y()) * sensitivity; |
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|
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qreal z = ACCEL_TO_G(sensor->reading()->z()); |
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|
279 |
|
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return QVector3D(x, y, z); |
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|
281 |
} |