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Breadcrumbs go here --> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <h1 class="title">glwidget.cpp Example File</h1> <span class="small-subtitle">opengl/hellogl_es/glwidget.cpp</span> <!-- $$$opengl/hellogl_es/glwidget.cpp-description --> <div class="descr"> <a name="details"></a> <pre class="cpp"> <span class="comment">/**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** 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 Digia Plc and its Subsidiary(-ies) 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> <span class="preprocessor">#include "glwidget.h"</span> <span class="preprocessor">#include <QPainter></span> <span class="preprocessor">#include <math.h></span> <span class="preprocessor">#include "bubble.h"</span> <span class="keyword">const</span> <span class="type">int</span> bubbleNum <span class="operator">=</span> <span class="number">8</span>; <span class="keyword">inline</span> <span class="type">void</span> CrossProduct(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> <span class="operator">&</span>xOut<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> <span class="operator">&</span>yOut<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> <span class="operator">&</span>zOut<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> z1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x2<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y2<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> z2) { xOut <span class="operator">=</span> y1 <span class="operator">*</span> z2 <span class="operator">-</span> z1 <span class="operator">*</span> y2; yOut <span class="operator">=</span> z1 <span class="operator">*</span> x2 <span class="operator">-</span> x1 <span class="operator">*</span> z2; zOut <span class="operator">=</span> x1 <span class="operator">*</span> y2 <span class="operator">-</span> y1 <span class="operator">*</span> x2; } <span class="keyword">inline</span> <span class="type">void</span> Normalize(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> <span class="operator">&</span>x<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> <span class="operator">&</span>y<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> <span class="operator">&</span>z) { <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> l <span class="operator">=</span> sqrt(x<span class="operator">*</span>x <span class="operator">+</span> y<span class="operator">*</span>y <span class="operator">+</span> z<span class="operator">*</span>z); x <span class="operator">=</span> x <span class="operator">/</span> l; y <span class="operator">=</span> y <span class="operator">/</span> l; z <span class="operator">=</span> z <span class="operator">/</span> l; } GLWidget<span class="operator">::</span>GLWidget(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent) : <span class="type"><a href="qglwidget.html">QGLWidget</a></span>(parent) { qtLogo <span class="operator">=</span> <span class="keyword">true</span>; createdVertices <span class="operator">=</span> <span class="number">0</span>; createdNormals <span class="operator">=</span> <span class="number">0</span>; m_vertexNumber <span class="operator">=</span> <span class="number">0</span>; frames <span class="operator">=</span> <span class="number">0</span>; setAttribute(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WA_PaintOnScreen); setAttribute(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>WA_NoSystemBackground); setAutoBufferSwap(<span class="keyword">false</span>); m_showBubbles <span class="operator">=</span> <span class="keyword">true</span>; } GLWidget<span class="operator">::</span><span class="operator">~</span>GLWidget() { <span class="keyword">if</span> (createdVertices) <span class="keyword">delete</span><span class="operator">[</span><span class="operator">]</span> createdVertices; <span class="keyword">if</span> (createdNormals) <span class="keyword">delete</span><span class="operator">[</span><span class="operator">]</span> createdNormals; } <span class="type">void</span> GLWidget<span class="operator">::</span>setScaling(<span class="type">int</span> scale) { <span class="keyword">if</span> (scale <span class="operator">></span> <span class="number">50</span>) m_fScale <span class="operator">=</span> <span class="number">1</span> <span class="operator">+</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(scale <span class="operator">-</span><span class="number">50</span>) <span class="operator">/</span> <span class="number">50</span> <span class="operator">*</span> <span class="number">0.5</span>; <span class="keyword">else</span> <span class="keyword">if</span> (scale <span class="operator"><</span> <span class="number">50</span>) m_fScale <span class="operator">=</span> <span class="number">1</span><span class="operator">-</span> (<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span>(<span class="number">50</span> <span class="operator">-</span> scale) <span class="operator">/</span> <span class="number">50</span> <span class="operator">*</span> <span class="number">1</span><span class="operator">/</span><span class="number">2</span>); <span class="keyword">else</span> m_fScale <span class="operator">=</span> <span class="number">1</span>; } <span class="type">void</span> GLWidget<span class="operator">::</span>setLogo() { qtLogo <span class="operator">=</span> <span class="keyword">true</span>; } <span class="type">void</span> GLWidget<span class="operator">::</span>setTexture() { qtLogo <span class="operator">=</span> <span class="keyword">false</span>; } <span class="type">void</span> GLWidget<span class="operator">::</span>showBubbles(<span class="type">bool</span> bubbles) { m_showBubbles <span class="operator">=</span> bubbles; } <span class="type">void</span> GLWidget<span class="operator">::</span>paintQtLogo() { glDisable(GL_TEXTURE_2D); glEnableClientState(GL_VERTEX_ARRAY); glVertexPointer(<span class="number">3</span><span class="operator">,</span>GL_FLOAT<span class="operator">,</span><span class="number">0</span><span class="operator">,</span> createdVertices); glEnableClientState(GL_NORMAL_ARRAY); glNormalPointer(GL_FLOAT<span class="operator">,</span><span class="number">0</span><span class="operator">,</span>createdNormals); glDrawArrays(GL_TRIANGLES<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> m_vertexNumber <span class="operator">/</span> <span class="number">3</span>); } <span class="type">void</span> GLWidget<span class="operator">::</span>paintTexturedCube() { glEnable(GL_TEXTURE_2D); glBindTexture(GL_TEXTURE_2D<span class="operator">,</span> m_uiTexture); GLfloat afVertices<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.5</span><span class="operator">,</span> <span class="number">0.5</span> }; glEnableClientState(GL_VERTEX_ARRAY); glVertexPointer(<span class="number">3</span><span class="operator">,</span>GL_FLOAT<span class="operator">,</span><span class="number">0</span><span class="operator">,</span>afVertices); GLfloat afTexCoord<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span><span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span><span class="number">1.0f</span> }; glEnableClientState(GL_TEXTURE_COORD_ARRAY); glTexCoordPointer(<span class="number">2</span><span class="operator">,</span>GL_FLOAT<span class="operator">,</span><span class="number">0</span><span class="operator">,</span>afTexCoord); GLfloat afNormals<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> { <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span> <span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="operator">-</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span><span class="operator">,</span> <span class="number">0</span><span class="operator">,</span><span class="number">1</span><span class="operator">,</span><span class="number">0</span> }; glEnableClientState(GL_NORMAL_ARRAY); glNormalPointer(GL_FLOAT<span class="operator">,</span><span class="number">0</span><span class="operator">,</span>afNormals); glDrawArrays(GL_TRIANGLES<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> <span class="number">36</span>); } <span class="type">void</span> GLWidget<span class="operator">::</span>initializeGL () { glClearColor(<span class="number">0.1f</span><span class="operator">,</span> <span class="number">0.1f</span><span class="operator">,</span> <span class="number">0.2f</span><span class="operator">,</span> <span class="number">1.0f</span>); glEnable(GL_TEXTURE_2D); glGenTextures(<span class="number">1</span><span class="operator">,</span> <span class="operator">&</span>m_uiTexture); m_uiTexture <span class="operator">=</span> bindTexture(<span class="type"><a href="qimage.html">QImage</a></span>(<span class="string">":/qt.png"</span>)); glTexParameterf(GL_TEXTURE_2D<span class="operator">,</span> GL_TEXTURE_MIN_FILTER<span class="operator">,</span> GL_LINEAR ); glTexParameterf(GL_TEXTURE_2D<span class="operator">,</span> GL_TEXTURE_MAG_FILTER<span class="operator">,</span> GL_LINEAR ); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); GLfloat aLightPosition<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> {<span class="number">0.0f</span><span class="operator">,</span><span class="number">0.3f</span><span class="operator">,</span><span class="number">1.0f</span><span class="operator">,</span><span class="number">0.0f</span>}; glLightfv(GL_LIGHT0<span class="operator">,</span> GL_SPOT_DIRECTION<span class="operator">,</span> aLightPosition); m_fAngle <span class="operator">=</span> <span class="number">0</span>; m_fScale <span class="operator">=</span> <span class="number">1</span>; createGeometry(); createBubbles(bubbleNum <span class="operator">-</span> bubbles<span class="operator">.</span>count()); } <span class="type">void</span> GLWidget<span class="operator">::</span>paintGL() { createBubbles(bubbleNum <span class="operator">-</span> bubbles<span class="operator">.</span>count()); <span class="type"><a href="qpainter.html">QPainter</a></span> painter; painter<span class="operator">.</span>begin(<span class="keyword">this</span>); glMatrixMode(GL_PROJECTION); glPushMatrix(); glLoadIdentity(); glMatrixMode(GL_MODELVIEW); glPushMatrix(); glMatrixMode(GL_TEXTURE); glPushMatrix(); <span class="comment">//Since OpenGL ES does not support glPush/PopAttrib(GL_ALL_ATTRIB_BITS)</span> <span class="comment">//we have to take care of the states ourselves</span> glClearColor(<span class="number">0.1f</span><span class="operator">,</span> <span class="number">0.1f</span><span class="operator">,</span> <span class="number">0.2f</span><span class="operator">,</span> <span class="number">1.0f</span>); glClear(GL_COLOR_BUFFER_BIT <span class="operator">|</span> GL_DEPTH_BUFFER_BIT); glEnable(GL_TEXTURE_2D); glTexParameterf(GL_TEXTURE_2D<span class="operator">,</span> GL_TEXTURE_MIN_FILTER<span class="operator">,</span> GL_LINEAR ); glTexParameterf(GL_TEXTURE_2D<span class="operator">,</span> GL_TEXTURE_MAG_FILTER<span class="operator">,</span> GL_LINEAR ); glEnable(GL_LIGHTING); glEnable(GL_LIGHT0); glShadeModel(GL_FLAT); glFrontFace(GL_CW); glCullFace(GL_FRONT); glEnable(GL_CULL_FACE); glEnable(GL_DEPTH_TEST); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glRotatef(m_fAngle<span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span>); glRotatef(m_fAngle<span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span>); glRotatef(m_fAngle<span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span>); glScalef(m_fScale<span class="operator">,</span> m_fScale<span class="operator">,</span>m_fScale); glTranslatef(<span class="number">0.0f</span><span class="operator">,</span><span class="operator">-</span><span class="number">0.2f</span><span class="operator">,</span><span class="number">0.0f</span>); GLfloat matDiff<span class="operator">[</span><span class="operator">]</span> <span class="operator">=</span> {<span class="number">0.40f</span><span class="operator">,</span> <span class="number">1.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">1.0f</span>}; glMaterialfv(GL_FRONT_AND_BACK<span class="operator">,</span> GL_DIFFUSE<span class="operator">,</span> matDiff); <span class="keyword">if</span> (qtLogo) paintQtLogo(); <span class="keyword">else</span> paintTexturedCube(); glMatrixMode(GL_MODELVIEW); glPopMatrix(); glMatrixMode(GL_PROJECTION); glPopMatrix(); glMatrixMode(GL_TEXTURE); glPopMatrix(); glDisable(GL_LIGHTING); glDisable(GL_LIGHT0); glDisable(GL_DEPTH_TEST); glDisable(GL_CULL_FACE); <span class="keyword">if</span> (m_showBubbles) foreach (Bubble <span class="operator">*</span>bubble<span class="operator">,</span> bubbles) { bubble<span class="operator">-</span><span class="operator">></span>drawBubble(<span class="operator">&</span>painter); } <span class="type"><a href="qstring.html">QString</a></span> framesPerSecond; framesPerSecond<span class="operator">.</span>setNum(frames <span class="operator">/</span>(time<span class="operator">.</span>elapsed() <span class="operator">/</span> <span class="number">1000.0</span>)<span class="operator">,</span> <span class="char">'f'</span><span class="operator">,</span> <span class="number">2</span>); painter<span class="operator">.</span>setPen(<span class="type"><a href="qt.html">Qt</a></span><span class="operator">::</span>white); painter<span class="operator">.</span>drawText(<span class="number">20</span><span class="operator">,</span> <span class="number">40</span><span class="operator">,</span> framesPerSecond <span class="operator">+</span> <span class="string">" fps"</span>); painter<span class="operator">.</span>end(); swapBuffers(); <span class="type"><a href="qmutablelistiterator.html">QMutableListIterator</a></span><span class="operator"><</span>Bubble<span class="operator">*</span><span class="operator">></span> iter(bubbles); <span class="keyword">while</span> (iter<span class="operator">.</span>hasNext()) { Bubble <span class="operator">*</span>bubble <span class="operator">=</span> iter<span class="operator">.</span>next(); bubble<span class="operator">-</span><span class="operator">></span>move(rect()); } <span class="keyword">if</span> (<span class="operator">!</span>(frames <span class="operator">%</span> <span class="number">100</span>)) { time<span class="operator">.</span>start(); frames <span class="operator">=</span> <span class="number">0</span>; } m_fAngle <span class="operator">+</span><span class="operator">=</span> <span class="number">1.0f</span>; frames <span class="operator">+</span><span class="operator">+</span>; } <span class="type">void</span> GLWidget<span class="operator">::</span>createBubbles(<span class="type">int</span> number) { <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> number; <span class="operator">+</span><span class="operator">+</span>i) { <span class="type"><a href="qpointf.html">QPointF</a></span> position(width()<span class="operator">*</span>(<span class="number">0.1</span> <span class="operator">+</span> (<span class="number">0.8</span><span class="operator">*</span>qrand()<span class="operator">/</span>(RAND_MAX<span class="operator">+</span><span class="number">1.0</span>)))<span class="operator">,</span> height()<span class="operator">*</span>(<span class="number">0.1</span> <span class="operator">+</span> (<span class="number">0.8</span><span class="operator">*</span>qrand()<span class="operator">/</span>(RAND_MAX<span class="operator">+</span><span class="number">1.0</span>)))); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> radius <span class="operator">=</span> <a href="qtglobal.html#qMin">qMin</a>(width()<span class="operator">,</span> height())<span class="operator">*</span>(<span class="number">0.0175</span> <span class="operator">+</span> <span class="number">0.0875</span><span class="operator">*</span>qrand()<span class="operator">/</span>(RAND_MAX<span class="operator">+</span><span class="number">1.0</span>)); <span class="type"><a href="qpointf.html">QPointF</a></span> velocity(width()<span class="operator">*</span><span class="number">0.0175</span><span class="operator">*</span>(<span class="operator">-</span><span class="number">0.5</span> <span class="operator">+</span> qrand()<span class="operator">/</span>(RAND_MAX<span class="operator">+</span><span class="number">1.0</span>))<span class="operator">,</span> height()<span class="operator">*</span><span class="number">0.0175</span><span class="operator">*</span>(<span class="operator">-</span><span class="number">0.5</span> <span class="operator">+</span> qrand()<span class="operator">/</span>(RAND_MAX<span class="operator">+</span><span class="number">1.0</span>))); bubbles<span class="operator">.</span>append(<span class="keyword">new</span> Bubble(position<span class="operator">,</span> radius<span class="operator">,</span> velocity)); } } <span class="type">void</span> GLWidget<span class="operator">::</span>createGeometry() { vertices<span class="operator">.</span>clear(); normals<span class="operator">.</span>clear(); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x1 <span class="operator">=</span> <span class="operator">+</span><span class="number">0.06f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y1 <span class="operator">=</span> <span class="operator">-</span><span class="number">0.14f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x2 <span class="operator">=</span> <span class="operator">+</span><span class="number">0.14f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y2 <span class="operator">=</span> <span class="operator">-</span><span class="number">0.06f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x3 <span class="operator">=</span> <span class="operator">+</span><span class="number">0.08f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y3 <span class="operator">=</span> <span class="operator">+</span><span class="number">0.00f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x4 <span class="operator">=</span> <span class="operator">+</span><span class="number">0.30f</span>; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y4 <span class="operator">=</span> <span class="operator">+</span><span class="number">0.22f</span>; quad(x1<span class="operator">,</span> y1<span class="operator">,</span> x2<span class="operator">,</span> y2<span class="operator">,</span> y2<span class="operator">,</span> x2<span class="operator">,</span> y1<span class="operator">,</span> x1); quad(x3<span class="operator">,</span> y3<span class="operator">,</span> x4<span class="operator">,</span> y4<span class="operator">,</span> y4<span class="operator">,</span> x4<span class="operator">,</span> y3<span class="operator">,</span> x3); extrude(x1<span class="operator">,</span> y1<span class="operator">,</span> x2<span class="operator">,</span> y2); extrude(x2<span class="operator">,</span> y2<span class="operator">,</span> y2<span class="operator">,</span> x2); extrude(y2<span class="operator">,</span> x2<span class="operator">,</span> y1<span class="operator">,</span> x1); extrude(y1<span class="operator">,</span> x1<span class="operator">,</span> x1<span class="operator">,</span> y1); extrude(x3<span class="operator">,</span> y3<span class="operator">,</span> x4<span class="operator">,</span> y4); extrude(x4<span class="operator">,</span> y4<span class="operator">,</span> y4<span class="operator">,</span> x4); extrude(y4<span class="operator">,</span> x4<span class="operator">,</span> y3<span class="operator">,</span> x3); <span class="keyword">const</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> Pi <span class="operator">=</span> <span class="number">3.14159f</span>; <span class="keyword">const</span> <span class="type">int</span> NumSectors <span class="operator">=</span> <span class="number">100</span>; <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>; i <span class="operator"><</span> NumSectors; <span class="operator">+</span><span class="operator">+</span>i) { <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> angle1 <span class="operator">=</span> (i <span class="operator">*</span> <span class="number">2</span> <span class="operator">*</span> Pi) <span class="operator">/</span> NumSectors; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x5 <span class="operator">=</span> <span class="number">0.30</span> <span class="operator">*</span> sin(angle1); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y5 <span class="operator">=</span> <span class="number">0.30</span> <span class="operator">*</span> cos(angle1); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x6 <span class="operator">=</span> <span class="number">0.20</span> <span class="operator">*</span> sin(angle1); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y6 <span class="operator">=</span> <span class="number">0.20</span> <span class="operator">*</span> cos(angle1); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> angle2 <span class="operator">=</span> ((i <span class="operator">+</span> <span class="number">1</span>) <span class="operator">*</span> <span class="number">2</span> <span class="operator">*</span> Pi) <span class="operator">/</span> NumSectors; <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x7 <span class="operator">=</span> <span class="number">0.20</span> <span class="operator">*</span> sin(angle2); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y7 <span class="operator">=</span> <span class="number">0.20</span> <span class="operator">*</span> cos(angle2); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x8 <span class="operator">=</span> <span class="number">0.30</span> <span class="operator">*</span> sin(angle2); <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y8 <span class="operator">=</span> <span class="number">0.30</span> <span class="operator">*</span> cos(angle2); quad(x5<span class="operator">,</span> y5<span class="operator">,</span> x6<span class="operator">,</span> y6<span class="operator">,</span> x7<span class="operator">,</span> y7<span class="operator">,</span> x8<span class="operator">,</span> y8); extrude(x6<span class="operator">,</span> y6<span class="operator">,</span> x7<span class="operator">,</span> y7); extrude(x8<span class="operator">,</span> y8<span class="operator">,</span> x5<span class="operator">,</span> y5); } m_vertexNumber <span class="operator">=</span> vertices<span class="operator">.</span>size(); createdVertices <span class="operator">=</span> <span class="keyword">new</span> GLfloat<span class="operator">[</span>m_vertexNumber<span class="operator">]</span>; createdNormals <span class="operator">=</span> <span class="keyword">new</span> GLfloat<span class="operator">[</span>m_vertexNumber<span class="operator">]</span>; <span class="keyword">for</span> (<span class="type">int</span> i <span class="operator">=</span> <span class="number">0</span>;i <span class="operator"><</span> m_vertexNumber;i<span class="operator">+</span><span class="operator">+</span>) { createdVertices<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> vertices<span class="operator">.</span>at(i) <span class="operator">*</span> <span class="number">2</span>; createdNormals<span class="operator">[</span>i<span class="operator">]</span> <span class="operator">=</span> normals<span class="operator">.</span>at(i); } vertices<span class="operator">.</span>clear(); normals<span class="operator">.</span>clear(); } <span class="type">void</span> GLWidget<span class="operator">::</span>quad(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x2<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y2<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x3<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y3<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x4<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y4) { <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> nx<span class="operator">,</span> ny<span class="operator">,</span> nz; vertices <span class="operator"><</span><span class="operator"><</span> x1 <span class="operator"><</span><span class="operator"><</span> y1 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x2 <span class="operator"><</span><span class="operator"><</span> y2 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x4 <span class="operator"><</span><span class="operator"><</span> y4 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x3 <span class="operator"><</span><span class="operator"><</span> y3 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x4 <span class="operator"><</span><span class="operator"><</span> y4 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x2 <span class="operator"><</span><span class="operator"><</span> y2 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; CrossProduct(nx<span class="operator">,</span> ny<span class="operator">,</span> nz<span class="operator">,</span> x2 <span class="operator">-</span> x1<span class="operator">,</span> y2 <span class="operator">-</span> y1<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> x4 <span class="operator">-</span> x1<span class="operator">,</span> y4 <span class="operator">-</span> y1<span class="operator">,</span> <span class="number">0</span>); Normalize(nx<span class="operator">,</span> ny<span class="operator">,</span> nz); normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; vertices <span class="operator"><</span><span class="operator"><</span> x4 <span class="operator"><</span><span class="operator"><</span> y4 <span class="operator"><</span><span class="operator"><</span> <span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x2 <span class="operator"><</span><span class="operator"><</span> y2 <span class="operator"><</span><span class="operator"><</span> <span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x1 <span class="operator"><</span><span class="operator"><</span> y1 <span class="operator"><</span><span class="operator"><</span> <span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x2 <span class="operator"><</span><span class="operator"><</span> y2 <span class="operator"><</span><span class="operator"><</span> <span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x4 <span class="operator"><</span><span class="operator"><</span> y4 <span class="operator"><</span><span class="operator"><</span> <span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x3 <span class="operator"><</span><span class="operator"><</span> y3 <span class="operator"><</span><span class="operator"><</span> <span class="number">0.05f</span>; CrossProduct(nx<span class="operator">,</span> ny<span class="operator">,</span> nz<span class="operator">,</span> x2 <span class="operator">-</span> x4<span class="operator">,</span> y2 <span class="operator">-</span> y4<span class="operator">,</span> <span class="number">0</span><span class="operator">,</span> x1 <span class="operator">-</span> x4<span class="operator">,</span> y1 <span class="operator">-</span> y4<span class="operator">,</span> <span class="number">0</span>); Normalize(nx<span class="operator">,</span> ny<span class="operator">,</span> nz); normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; } <span class="type">void</span> GLWidget<span class="operator">::</span>extrude(<span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y1<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> x2<span class="operator">,</span> <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> y2) { <span class="type"><a href="qtglobal.html#qreal-typedef">qreal</a></span> nx<span class="operator">,</span> ny<span class="operator">,</span> nz; vertices <span class="operator"><</span><span class="operator"><</span> x1 <span class="operator"><</span><span class="operator"><</span> y1 <span class="operator"><</span><span class="operator"><</span> <span class="operator">+</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x2 <span class="operator"><</span><span class="operator"><</span> y2 <span class="operator"><</span><span class="operator"><</span> <span class="operator">+</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x1 <span class="operator"><</span><span class="operator"><</span> y1 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x2 <span class="operator"><</span><span class="operator"><</span> y2 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x1 <span class="operator"><</span><span class="operator"><</span> y1 <span class="operator"><</span><span class="operator"><</span> <span class="operator">-</span><span class="number">0.05f</span>; vertices <span class="operator"><</span><span class="operator"><</span> x2 <span class="operator"><</span><span class="operator"><</span> y2 <span class="operator"><</span><span class="operator"><</span> <span class="operator">+</span><span class="number">0.05f</span>; CrossProduct(nx<span class="operator">,</span> ny<span class="operator">,</span> nz<span class="operator">,</span> x2 <span class="operator">-</span> x1<span class="operator">,</span> y2 <span class="operator">-</span> y1<span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="number">0.0f</span><span class="operator">,</span> <span class="operator">-</span><span class="number">0.1f</span>); Normalize(nx<span class="operator">,</span> ny<span class="operator">,</span> nz); normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; normals <span class="operator"><</span><span class="operator"><</span> nx <span class="operator"><</span><span class="operator"><</span> ny <span class="operator"><</span><span class="operator"><</span> nz; }</pre> </div> <!-- @@@opengl/hellogl_es/glwidget.cpp --> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2013 Digia Plc and/or its subsidiaries. Documentation contributions included herein are the copyrights of their respective owners.</p> <br /> <p> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.</p> <p> Documentation sources may be obtained from <a href="http://www.qt-project.org"> www.qt-project.org</a>.</p> <br /> <p> Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide. All other trademarks are property of their respective owners. <a title="Privacy Policy" href="http://en.gitorious.org/privacy_policy/">Privacy Policy</a></p> </div> <script src="scripts/functions.js" type="text/javascript"></script> </body> </html>