创建一个基类为widget的工程
把文件夹glut64放到代码目录下，文件夹包含以下文件
freeglut.dll
freeglut.lib
glut.h
freeglut.h
freeglut_ext.h
freeglut_std.h
在工程文件*.pro中增加以下几行
win32: LIBS += -L$$PWD/glut64/ -lfreeglut INCLUDEPATH += $$PWD/glut64 DEPENDPATH += $$PWD/glut64
widget.h
#ifndef WIDGET_H #define WIDGET_H #include <QWidget> #include <QOpenGLWidget> #include <QOpenGLFunctions>
class Widget : public QOpenGLWidget, protected QOpenGLFunctions { Q_OBJECT public: Widget(QWidget *parent = 0); ~Widget(); void initializeGL(); void resizeGL(int w, int h); void paintGL(); }; #endif // WIDGET_H
widget.cpp
#include "widget.h" #include "glut64\freeglut.h" Widget::Widget(QWidget *parent) : QOpenGLWidget(parent) { } Widget::~Widget() { } void Widget::initializeGL() { initializeOpenGLFunctions(); glClearColor(0.0, 0.0, 0.0,1.0); } void Widget::resizeGL(int w, int h) { glViewport(0, 0, (GLsizei)w, (GLsizei)h); glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluOrtho2D(-10,10,-10,10); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } void Widget::paintGL() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glLineWidth(5.0); glColor3d(0.0,1.0,1.0); glBegin(GL_LINE_LOOP); glVertex2d(-8.0, -8.0); glVertex2d(8.0, -8.0); glVertex2d(0.0, 8.0); glEnd(); }