ubuntu-Qt5.3-OpenGL-teapot资源-CSDN文库

共16个文件

cpp：5个

ui：4个

h：4个

ubuntu

Qt5.3

OpenGL

teapot

需积分: 12 141 浏览量 2015-04-25 21:27:07 上传评论 1 收藏 15KB ZIP 举报

在本文中，我们将深入探讨如何在Ubuntu操作系统上利用Qt 5.3框架开发OpenGL应用程序，以实现经典的“茶壶”（teapot）渲染。Qt是一个跨平台的应用程序开发框架，支持多种操作系统，包括Ubuntu，而OpenGL则是一个强大的图形库，用于生成2D和3D图像。"ubuntu-Qt5.3-OpenGL-teapot"项目正是一个结合了这些技术的实例，对于学习Qt和OpenGL编程非常有帮助。让我们了解Qt 5.3。这是Qt 5系列的一个版本，引入了许多改进和新特性，如Qt Quick 2、QML的增强、更好的性能以及对现代C++11标准的支持。在Ubuntu上安装Qt 5.3可以通过官方Qt维护的PPA或者下载源码编译来完成。接下来，我们来看看OpenGL。OpenGL是一种与硬件无关的API，允许开发者创建高性能的图形应用。经典的OpenGL示例就是“茶壶”，它在3D图形编程的历史中占有重要地位，常被用来验证渲染环境的正确性。在Qt中，我们可以使用QOpenGLWidget来创建一个OpenGL画布，然后在paintEvent()函数中实现绘图逻辑。在"ubuntu-Qt5.3-OpenGL-teapot"项目中，开发者可能已经实现了以下步骤： 1. 创建一个Qt项目，包含一个QOpenGLWidget子类，用于处理OpenGL渲染。 2. 在QOpenGLWidget的initializeGL()函数中，初始化OpenGL上下文，加载必要的着色器，设置视口大小等。 3. 在glViewport()中定义视口，以便在窗口中正确显示3D内容。 4. 在paintEvent()中，调用glClear()清除颜色和深度缓冲，然后进行茶壶的几何建模和绘制。 5. 使用glTranslatef()或glRotatef()等函数控制茶壶的位置和旋转，展示3D变换。 6. 编写顶点着色器和片段着色器，可能用到了GLSL（OpenGL Shading Language），以实现光照、纹理等效果。 7. 调用glDrawArrays()或glDrawElements()绘制茶壶模型的顶点。 8. 确保在cleanupGL()中释放所有资源，避免内存泄漏。学习这个项目，你可以了解到如何在Qt环境中设置OpenGL上下文，如何使用QOpenGLFunctions进行安全的OpenGL调用，以及如何结合Qt的事件驱动模型与OpenGL的渲染流程。此外，你还可以探索如何将Qt的UI元素与OpenGL的3D内容相结合，创建交互式应用程序。 "ubuntu-Qt5.3-OpenGL-teapot"项目为初学者提供了一个很好的实践平台，通过它你可以深入理解Qt和OpenGL的结合使用，进一步提升你的图形编程技能。在实践中，你可以尝试修改代码，实现更复杂的3D模型，添加更多的交互元素，或者研究如何优化渲染性能。这将有助于你在实际项目开发中更好地运用这些技术。

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ubuntu-Qt5.3-OpenGL-teapot.zip （16个子文件）

teapot

main.cpp 481B

mainwindow.h 703B

show.h 342B

teapot.pro.user.2.2pre5 12KB

show.cpp 683B

bezier.ui 680B

form.ui 399B

bezier.h 662B

teapot.pro.user 18KB

mainwindow.cpp 4KB

mainwindow.ui 3KB

form.h 587B

teapot.pro 513B

form.cpp 13KB

bezier.cpp 6KB

show.ui 675B

#include "form.h" #include "ui_form.h" #include <QtGui/QApplication> #include <QtGui/QMainWindow> #include <QtGui/QWidget> #include <QtGui/QImage.h> #include <QtGui/qevent.h> #include <float.h> #include <windows.h> // Windows的头文件 #include <QtOpenGL/QGLWidget> #include <QtGui/QtGui> #include <QtOpenGL/QtOpenGL> #include <stdio.h> // 标准输入/输出库的头文件 bool fill=true; //teapot is here~~~~~~~~~~~~~~~~~~~~~~~~~~ GLfloat ambientlight[]={0.3f,0.3f,0.3f,0.3f}; GLfloat eye[3] = { 0.0, 0.0, 0.0 }; GLfloat at[3] = { 0.0, 0.0, 0.0 }; GLfloat up[3] = { 0.0, 1.0, 0.0 }; int count3=0; GLfloat cap[2][4][3][4][3]={{ {{{0.0f,3.0f,0.0f},{0.0,3,1.0},{0.0,3.0,0},{0.0,2.5,0.2}}, {{0.0f,3.0,0.0f},{1.0,3,1.0},{0,3.0,0},{0.2,2.5,0.2}}, {{0.0f,3.0,0.0f},{1.0,3,0.0f},{0,3.0,0},{0.2,2.5,0}}}, {{{-0.0f,3.0,0.0f},{-1.0,3,0.0f},{-0,3.0,0},{-0.2,2.5,0}}, {{-0.0f,3.0,0.0f},{-1.0,3,1.0},{-0,3.0,0},{-0.2,2.5,0.2}}, {{0.0f,3.0,0.0f},{0.0,3,1.0},{0.0,3.0,0},{0.0,2.5,0.2}}}, {{{0.0f,3.0,-0.0f},{0.0,3,-1.0},{0.0,3.0,-0.0},{0.0,2.5,-0.2}}, {{-0.0f,3.0,-0.0f},{-1.0,3,-1.0},{-0.0,3.0,-0},{-0.2,2.5,-0.2}}, {{-0.0f,3.0,0.0f},{-1.0,3,0.0f},{-0,3.0,0},{-0.2,2.5,0}}}, {{{0.0f,3.0,0.0f},{1.0,3,0.0f},{0,3.0,0},{0.2,2.5,0}}, {{0.0f,3.0,-0.0f},{1.0,3,-1.0},{0,3.0,-0.0},{0.2,2.5,-0.2}}, {{0.0f,3.0,-0.0f},{0.0,3,-1.0},{0.0,3.0,-0.0},{0.0,2.5,-0.2}}}}, {{{{0.0,2.5,0.2},{0.0,2.4,0.4},{0.0,2.4,1.3},{0.0,2.25,1.3}}, {{0.2,2.5,0.2},{0.4,2.4,0.4},{1.3,2.4,1.3},{1.3,2.25,1.3}}, {{0.2,2.5,0},{0.4,2.4,0},{1.3,2.4,0},{1.3,2.25,0}}}, {{{-0.2,2.5,0},{-0.4,2.4,0},{-1.3,2.4,0},{-1.3,2.25,0}}, {{-0.2,2.5,0.2},{-0.4,2.4,0.4},{-1.3,2.4,1.3},{-1.3,2.25,1.3}}, {{0.0,2.5,0.2},{0.0,2.4,0.4},{0.0,2.4,1.3},{0.0,2.25,1.3}}}, {{{0.0,2.5,-0.2},{0.0,2.4,-0.4},{0.0,2.4,-1.3},{0.0,2.25,-1.3}}, {{-0.2,2.5,-0.2},{-0.4,2.4,-0.4},{-1.3,2.4,-1.3},{-1.3,2.25,-1.3}}, {{-0.2,2.5,0},{-0.4,2.4,0},{-1.3,2.4,0},{-1.3,2.25,0}}}, {{{0.2,2.5,0},{0.4,2.4,0},{1.3,2.4,0},{1.3,2.25,0}}, {{0.2,2.5,-0.2},{0.4,2.4,-0.4},{1.3,2.4,-1.3},{1.3,2.25,-1.3}}, {{0.0,2.5,-0.2},{0.0,2.4,-0.4},{0.0,2.4,-1.3},{0.0,2.25,-1.3}}}}}; GLfloat body[3][4][3][4][3]={ {{{{0.0f,2.3f,1.4f},{0.0f,2.4f,1.3f},{0.0f,2.4f,1.4f},{0.0f, 2.3f,1.5f}}, {{1.4f,2.3f,1.4f},{1.3f,2.4f,1.3f},{1.4f,2.4f,1.4f},{1.5f, 2.3f,1.5f}}, {{1.4f, 2.3f, 0.0f},{ 1.3f, 2.4f, 0.0f},{ 1.4f, 2.4f, 0.0f},{ 1.5f, 2.3f, 0.0f }}}, {{{-1.4f, 2.3f, 0.0f},{ -1.3f, 2.4f, 0.0f},{-1.4f, 2.4f, 0.0f},{-1.5f, 2.3f, 0.0f }}, {{-1.4f,2.3f,1.4f},{-1.3f,2.4f,1.3f},{-1.4f,2.4f,1.4f},{-1.5f, 2.3f,1.5f}}, {{0.0f,2.3f,1.4f},{0.0f,2.4f,1.3f},{0.0f,2.4f,1.4f},{0.0f, 2.3f,1.5f}}}, {{{0.0f,2.3f,-1.4f},{0.0f,2.4f,-1.3f},{0.0f,2.4f,-1.4f},{0.0f, 2.3f,-1.5f}}, {{-1.4f,2.3f,-1.4f},{-1.3f,2.4f,-1.3f},{-1.4f,2.4f,-1.4f},{-1.5f, 2.3f,-1.5f}}, {{-1.4f, 2.3f, 0.0f},{ -1.3f, 2.4f, 0.0f},{-1.4f, 2.4f, 0.0f},{-1.5f, 2.3f, 0.0f }}}, {{{1.4f, 2.3f, 0.0f},{ 1.3f, 2.4f, 0.0f},{ 1.4f, 2.4f, 0.0f},{ 1.5f, 2.3f, 0.0f }}, {{1.4f,2.3f,-1.4f},{1.3f,2.4f,-1.3f},{1.4f,2.4f,-1.4f},{1.5f, 2.3f,-1.5f}}, {{0.0f,2.3f,-1.4f},{0.0f,2.4f,-1.3f},{0.0f,2.4f,-1.4f},{0.0f, 2.3f,-1.5f}}}}, {{{{0, 2.3f, 1.5f },{0,1.7f,1.8f},{0,1.2f,2.0f},{0,0.8,2.0f}}, {{1.5f, 2.3f, 1.5f },{1.8f,1.7f,1.8f},{2.0f,1.2f,2.0f},{2.0f,0.8,2.0f}}, {{1.5f, 2.3f, 0.0f },{1.8f,1.7f,0.0f},{2.0f,1.2f,0.0f},{2.0f,0.8,0.0f}}}, {{{-1.5f, 2.3f, 0.0f },{-1.8f,1.7f,0.0f},{-2.0f,1.2f,0.0f},{-2.0f,0.8,0.0f}}, {{-1.5f, 2.3f, 1.5f },{-1.8f,1.7f,1.8f},{-2.0f,1.2f,2.0f},{-2.0f,0.8,2.0f}}, {{0, 2.3f, 1.5f },{0,1.7f,1.8f},{0,1.2f,2.0f},{0,0.8,2.0f}}}, {{{0, 2.3f, -1.5f },{0,1.7f,-1.8f},{0,1.2f,-2.0f},{0,0.8,-2.0f}}, {{-1.5f, 2.3f, -1.5f },{-1.8f,1.7f,-1.8f},{-2.0f,1.2f,-2.0f},{-2.0f,0.8,-2.0f}}, {{-1.5f, 2.3f, 0.0f },{-1.8f,1.7f,0.0f},{-2.0f,1.2f,0.0f},{-2.0f,0.8,0.0f}}}, {{{1.5f, 2.3f, 0.0f },{1.8f,1.7f,0.0f},{2.0f,1.2f,0.0f},{2.0f,0.8,0.0f}}, {{1.5f, 2.3f, -1.5f },{1.8f,1.7f,-1.8f},{2.0f,1.2f,-2.0f},{2.0f,0.8,-2.0f}}, {{0, 2.3f, -1.5f },{0,1.7f,-1.8f},{0,1.2f,-2.0f},{0,0.8,-2.0f}}}}, {{{{0.0f,0.8,2.0f},{0.0f,0.3f,2.0f},{0.0f, 0.075f,1.5f},{0.0f, 0.0f,1.5f}}, {{2.0f,0.8,2.0f},{2.0f,0.3f,2.0f},{1.5f, 0.075f,1.5f},{1.5f, 0.0f,1.5f}}, {{2.0f,0.8,0.0f},{2.0f,0.3f,0.0f},{1.5f, 0.075f,0.0f},{1.5f, 0.0f,0.0f}}}, {{{-2.0f,0.8,0.0f},{-2.0f,0.3f,0.0f},{-1.5f, 0.075f,0.0f},{-1.5f, 0.0f,0.0f}}, {{-2.0f,0.8,2.0f},{-2.0f,0.3f,2.0f},{-1.5f, 0.075f,1.5f},{-1.5f, 0.0f,1.5f}}, {{0.0f,0.8,2.0f},{0.0f,0.3f,2.0f},{0.0f, 0.075f,1.5f},{0.0f, 0.0f,1.5f}}}, {{{0.0f,0.8,-2.0f},{0.0f,0.3f,-2.0f},{0.0f, 0.075f,-1.5f},{0.0f, 0.0f,-1.5f}}, {{-2.0f,0.8,-2.0f},{-2.0f,0.3f,-2.0f},{-1.5f, 0.075f,-1.5f},{-1.5f, 0.0f,-1.5f}}, {{-2.0f,0.8,0.0f},{-2.0f,0.3f,0.0f},{-1.5f, 0.075f,0.0f},{-1.5f, 0.0f,0.0f}}}, {{{2.0f,0.8,0.0f},{2.0f,0.3f,0.0f},{1.5f, 0.075f,0.0f},{1.5f, 0.0f,0.0f}}, {{2.0f,0.8,-2.0f},{2.0f,0.3f,-2.0f},{1.5f, 0.075f,-1.5f},{1.5f, 0.0f,-1.5f}}, {{0.0f,0.8,-2.0f},{0.0f,0.3f,-2.0f},{0.0f, 0.075f,-1.5f},{0.0f, 0.0f,-1.5f}}}}}; GLfloat hand2[2][4][4][3]; GLfloat hand1[2][4][4][3]= {{{{-1.6,1.9,0.0},{-1.6,1.9,0.3},{-1.5,2.1,0.3},{-1.5,2.1,0.0}}, {{-2.3,1.9,0.0},{-2.3,1.9,0.3}, {-2.5,2.1,0.3}, {-2.5,2.1,0.0}}, {{-2.7,1.9,0.0},{-2.7,1.9,0.3},{ -3.0,2.1,0.3},{-3.0,2.1,0.0}}, {{-2.7,1.65,0.0},{-2.7,1.65,0.3},{-3.0,1.65,0.3},{-3.0,1.65,0.0}}}, {{{-2.7,1.65,0.0}, { -2.7,1.65,0.3},{-3.0,1.65,0.3},{-3.0,1.65,0.0}}, {{-2.7,1.4,0.0},{-2.7,1.4,0.3},{-3.0,1.2,0.3 },{-3.0,1.2,0.0}}, {{-2.5,1.0 ,0.0 },{-2.5,1.0,0.3},{-2.65,0.79,0.3},{-2.65,0.79,0.0}}, {{-2.0,0.75,0.0},{-2.0,0.75,0.3},{-1.9,0.45,0.3},{-1.9,0.45,0.0}}}}; void hChangePoints(void){ int i,j,k; for(i=0;i<2;i++){ for(j=0;j<4;j++){ for(k=0;k<4;k++){ hand2[i][j][k][0]=hand1[i][j][-k+3][0]; hand2[i][j][k][1]=hand1[i][j][-k+3][1]; hand2[i][j][k][2]=-hand1[i][j][-k+3][2]; } } } } GLfloat mouth1[2][4][4][3]; GLfloat mouth2[2][4][4][3]; GLfloat mouth[2][4][4][3]= {{{{1.7, 0.0, 0.5},{1.7, 0.8, 0.5},{1.7, 0.8, 1.3},{1.7, 0.0, 1.3}}, {{3.1, 0.0, 0.8},{3.1, 0.8, 0.8},{2.6, 0.8, 1.3},{2.6, 0.0, 1.3}}, {{2.4, 0.0, 1.9},{2.4, 0.25, 1.9},{2.3, 0.25, 1.95},{2.3, 0.0, 1.95}}, {{3.3, 0.0, 2.3},{3.3, 0.25, 2.3},{2.7, 0.25, 2.3},{2.7, 0.0, 2.3}}}, {{{3.3, 0.0, 2.3}, {3.3, 0.25, 2.3},{2.7, 0.25, 2.3 },{2.7, 0.0, 2.3 }}, {{3.5, 0.0, 2.3}, {3.5, 0.25, 2.3},{2.8, 0.25, 2.3},{2.8, 0.0, 2.3}}, {{3.4, 0.0, 2.4}, {3.4, 0.1, 2.4}, {3.0, 0.1, 2.3}, {3.0, 0.0, 2.3}}, {{3.2, 0.0, 2.3}, {3.2, 0.15, 2.3},{2.8, 0.15, 2.3}, {2.8, 0.0, 2.3}}}}; void mChangePoints(void){ int i,j,k; for(i=0;i<2;i++){ for(j=0;j<4;j++){ for(k=0;k<4;k++){ mouth1[i][j][k][0]=mouth[i][j][k][0]; mouth1[i][j][k][1]=mouth[i][j][k][2]; mouth1[i][j][k][2]=mouth[i][j][k][1]; } } } for(i=0;i<2;i++){ for(j=0;j<4;j++){ for(k=0;k<4;k++){ mouth2[i][j][k][0]=mouth1[i][j][-k+3][0]; mouth2[i][j][k][1]=mouth1[i][j][-k+3][1]; mouth2[i][j][k][2]=-mouth1[i][j][-k+3][2]; } } } } GLfloat button[4][3][3]={ {{0.0f,0.0f,1.5f},{1.5,0.0f,1.5},{1.5,0.0f,0.0f}}, {{1.5,0.0f,0.0f},{1.5,0.0f,-1.5},{0.0f,0.0f,-1.5f}}, {{-1.5,0.0f,0.0f},{-1.5,0.0f,1.5},{0.0f,0.0f,1.5f}}, {{0.0f,0.0f,-1.5f},{-1.5,0.0f,-1.5},{-1.5,0.0f,0.0f}}}; void teapot(bool fill){ int i,j; glEnable(GL_MAP2_VERTEX_3); if(!fill){ glPolygonMode(GL_FRONT_AND_BACK, GL_FILL); } else{ if(count3>=1){ for(j=0;j<2;j++){ for(i=0;i

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