最近要开始做三维重建,需要使用opencv 和 openGL,第一次使用OpenGL,当然要从装glut库来开始。
glut 库文件下载地址如下:http://download.csdn.net/detail/hyqsong/8618163
安装步奏如下:
1.将glut.h,放在vs2013安装目录的include下,新建一个GL目录(没有的话):例如我的路径是: C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\include\GL
2.将glut.lib和glut32.lib放在vs2013安装目录的lib下:例如我的路径是:C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\lib
3.将glut.dll和glut32.dll放在系统的系统目录下面:例如我的路径是:C:\Windows\System32 和C:\Windows\SysWOW64(最好两个都复制一遍)
这里给出一个OpenGL的例子程序,用来验证自己是不是搞定OpenGL了,如下(复制到新建的win32项目下即可)
#include <GL/glut.h>
#include <stdlib.h>
#include <math.h>
#include <stdio.h>
static int year = 0,spin=0, day = 0;
static GLint fogMode;
const int n = 100;
const GLfloat R = 1.0f;
const GLfloat Pi = 3.1415926536f;
void DrawCircle()
{
int i;
glClear(GL_COLOR_BUFFER_BIT);
glBegin(GL_LINE_LOOP);
for (i = 0; i < n; ++i)
{
glColor3f(1.0, 0.0, 0.0);
glVertex2f(R*cos(2 * Pi / n*i), R*sin(2 * Pi / n*i));
}
glEnd();
glFlush();
}
void init(void)
{
GLfloat position[] = { 0.5, 0.5, 3.0, 0.0 };
glEnable(GL_DEPTH_TEST); //防止遮挡
glLightfv(GL_LIGHT0, GL_POSITION, position);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
{
GLfloat mat[3] = { 0.1745, 0.01175, 0.01175 };
glMaterialfv(GL_FRONT, GL_AMBIENT, mat);
mat[0] = 0.61424; mat[1] = 0.04136; mat[2] = 0.04136;
glMaterialfv(GL_FRONT, GL_DIFFUSE, mat);
mat[0] = 0.727811; mat[1] = 0.626959; mat[2] = 0.626959;
glMaterialfv(GL_FRONT, GL_SPECULAR, mat);
glMaterialf(GL_FRONT, GL_SHININESS, 0.6*128.0);
}
glEnable(GL_FOG);
{
GLfloat fogColor[4] = { 0.5, 0.5, 0.5, 1.0 };
fogMode = GL_EXP;
glFogi(GL_FOG_MODE, fogMode);
glFogfv(GL_FOG_COLOR, fogColor);
glFogf(GL_FOG_DENSITY, 0.35);
glHint(GL_FOG_HINT, GL_DONT_CARE);
glFogf(GL_FOG_START, 1.0);
glFogf(GL_FOG_END, 5.0);
}
glClearColor(0.5, 0.9, 0.9, 1.0); /* fog color */
}
void display(void)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(0.0, 1.0, 1.0);
glPushMatrix(); //记住自己的位置
glutSolidSphere(1.0, 20, 16); /* 画太阳半径、 20经度、16纬度*/
glRotatef(spin, 0.0, 1.0, 0.0); //自转,绕着一个向量以给定角度旋转(正的为逆时针)
glTranslatef(2.0, 1.0, 0.0);
glRotatef(spin, 1.0, 0.0, 0.0); //公转
glRectf(0.1,0.1,0.5,0.5);
glColor3f(0.0, 0.0, 1.0);
glutWireSphere(0.2, 8, 8); /* 画第一颗小行星 */
glColor3f(1.0, 0.0, 0.0);
glTranslatef(2.0, 1.0, 0.0);
glRotatef(2 * spin, 0.0, 1.0, 0.0);
glutSolidSphere(0.5, 16, 8);
glPopMatrix();//回到原来的位置
glutSwapBuffers();
}
void spinDisplay(void)
{
spin = spin + 2;
if (spin > 360)
spin = spin - 360;
glutPostRedisplay();
}
void mouse(int button,int state,int x,int y )
{
switch (button)
{
case GLUT_LEFT_BUTTON:
if (state == GLUT_DOWN)
glutIdleFunc(spinDisplay);
break;
case GLUT_MIDDLE_BUTTON:
if (state == GLUT_DOWN)
glutIdleFunc(NULL);
break;
default:
break;
}
}
void reshape(int w, int h)
{
glViewport(0, 0, (GLsizei)w, (GLsizei)h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0, (GLfloat)w / (GLfloat)h, 0.5, 20.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0.0, 10.0, 10.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
}
void keyboard(unsigned char key, int x, int y)
{
switch (key) {
case ‘d‘:
day = (day + 10) % 360;
glutPostRedisplay();
break;
case ‘D‘:
day = (day - 10) % 360;
glutPostRedisplay();
break;
case ‘y‘:
year = (year + 5) % 360;
glutPostRedisplay();
break;
case ‘Y‘:
year = (year - 5) % 360;
glutPostRedisplay();
break;
case 27:
exit(0);
break;
default:
break;
}
}
int main(int argc, char** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
glutInitWindowSize(400, 400);
glutInitWindowPosition(100, 100);
glutCreateWindow("OpengGL 程序设计--杨超");
init();
//glutDisplayFunc(DrawCircle);
glutDisplayFunc(display);
glutReshapeFunc(reshape);
//glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMainLoop();
return 0;
}
编译后能正确运行说明配置成功!
参考自:http://jingyan.baidu.com/article/d5c4b52bca5005da560dc5d6.html