1，下载最新的glut动态库，1998年发布，并且不再更新： https://www.opengl.org/resources/libraries/glut/glutdlls37beta.zip
2，编译openglDemo源码：参见命令行：cl.exe openTran.cpp /EHsc /I"./" glut32.lib /link /LIBPATH:"./GL"
3，程序效果：
4，源码示例：
#include <math.h>
#include "GL/glut.h"
#pragma comment( linker, "/subsystem:windows /entry:mainCRTStartup" )
void init(void){
glClearColor(0.0, 0.0, 0.0, 0.0);
glShadeModel(GL_SMOOTH);
}
void myDisplay(void)
{
glClear(GL_COLOR_BUFFER_BIT);
//glTranslatef(0.8, 0.0, 0.0);
glBegin(GL_TRIANGLES);
glColor3f(1.0, 0.0, 0.0);
glVertex2f(-0.5, -0.5);
glColor3f(0.0, 1.0, 0.0);
glVertex2f(0.5, -0.5);
glColor3f(0.0, 0.0, 1.0);
glVertex2f(0.5, 0.5);
glEnd();
float PI=3.1415926f;
glBegin(GL_LINE_STRIP);
for(float x=-5*PI;x<5*PI;x+=0.01f)
{
//glVertex2f(x/(5*PI),sin(x));
glColor3f(0.0, 1.0, 0.0);
glVertex2f(x/(5*PI),sin(x));
glColor3f(0.0, 1.0, 0.0);
glVertex2f(x/(5*PI), 0);
}
glEnd();
glFlush();
}
void myReshape(GLsizei w, GLsizei h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (w <= h)
gluOrtho2D(-1.0, 1.5, -1.5, 1.5*(GLfloat)h / (GLfloat)w);
else
gluOrtho2D(-1.0, 1.5*(GLfloat)w / (GLfloat)h, -1.5, 1.5);
glMatrixMode(GL_MODELVIEW);
}
int main(int argc, char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);
glutInitWindowPosition(200, 200);
glutInitWindowSize(800, 800);
glutCreateWindow("triangle");
init();
glutReshapeFunc(myReshape);
glutDisplayFunc(myDisplay);
glutMainLoop();
return 0;
}//#include <GL/glut.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <GLUT/glut.h>
// gcc -framework OpenGL -framework GLUT -framework Foundation -o opengl opengl.c
#define __LOG__
#ifdef __LOG__
#define log(format,...) printf("LOG:[%s][%03d][%s][%s][%s]"format"\n", __FILE__, __LINE__, __DATE__, __TIME__, __FUNCTION__, ##__VA_ARGS__)
#else
#define log(format,...)
#endif
void init(void)
{
glClearColor(0.0, 0.0, 0.0, 0.0);//设置背景颜色为黑色
glShadeModel(GL_SMOOTH);//设置为光滑明暗模式
}
void myDisplay(void)
{
glClear(GL_COLOR_BUFFER_BIT);// 将缓存清除为预先的设置值,即黑色
//glTranslatef(0.8, 0.0, 0.0);//平移函数，暂时可以不用
glBegin(GL_TRIANGLES);//开始画三角形
glColor3f(1.0, 0.0, 0.0);//设置第一个顶点为红色
glVertex2f(-1.0, -1.0);//设置第一个顶点的坐标
glColor3f(0.0, 1.0, 0.0);//设置第二个顶点为绿色
glVertex2f(0.0, -1.0);//设置第二个顶点的坐标
glColor3f(0.0, 0.0, 1.0);//设置第三个顶点为蓝色
glVertex2f(-0.5, 1.0);//设置第三个顶点的坐标
glEnd();//三角形结束
glFlush();//强制OpenGL函数在有限时间内运行
}
void myReshape(GLsizei w, GLsizei h)
{
glViewport(0, 0, w, h);//设置视口
glMatrixMode(GL_PROJECTION);//指明当前矩阵为GL_PROJECTION
glLoadIdentity();//将当前矩阵置换为单位阵
if (w <= h)
gluOrtho2D(-1.0, 1.5, -1.5, 1.5*(GLfloat)h / (GLfloat)w);//定义二维正视投影矩阵
else
gluOrtho2D(-1.0, 1.5*(GLfloat)w / (GLfloat)h, -1.5, 1.5);
glMatrixMode(GL_MODELVIEW);//指明当前矩阵为GL_MODELVIEW
}
void myKeyFunc (unsigned char key, int x, int y)
{
printf("myKeyFunc key = char[%c] [0x%x]\n", key, key);
//fflush(stdout);
switch (key) {
case 27:
exit(0);
break;
default:
break;
}
}
int main(int argc, char ** argv)
{
/*初始化*/
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);//单缓冲、RGB模式
glutInitWindowSize(960, 540);
glutInitWindowPosition(200, 200);
glutCreateWindow("GL_TRIANGLES");//窗口标题
init();
printf("GL_VERSION %s\n", (char *)glGetString(GL_VERSION));
printf("GL_VENDOR %s\n", (char *)glGetString(GL_VENDOR));
printf("GL_RENDERER %s\n", (char *)glGetString(GL_RENDERER));
printf("GL_EXTENSIONS %.64s\n", (char *)glGetString(GL_EXTENSIONS));
/*绘制与显示*/
glutReshapeFunc(myReshape);//窗口大小发生改变时采取的行为
glutDisplayFunc(myDisplay);//显示绘制图形
glutKeyboardFunc(myKeyFunc);
glutMainLoop();//循环
return(0);
}#include <stdio.h>
#include <stdlib.h>
// #include <GL/glut.h>
#include <OpenGL/gl.h>
#include <OpenGL/glu.h>
#include <GLUT/glut.h>
#define Width 64
#define Height 64
GLubyte image[Height][Width][3];//rgb
GLint height;
void image_create()//在内存中创建一幅棋盘图像的矩阵
{
int c;
for(int i=0;i<Height;i++)
{
for(int j=0;j<Width;j++)
{
c=(((i&0x8)==0)^((j&0x8)==0))*255;
image[i][j][0]=(GLubyte)c;
image[i][j][1]=(GLubyte)c;
image[i][j][2]=(GLubyte)c;
}
}
}
void setup_image()
{
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glShadeModel(GL_FLAT);
image_create();
glPixelStorei(GL_UNPACK_ALIGNMENT,1);//边界对齐
}
void image_motion(int x,int y)
{
glRasterPos2i(x,y);
glPixelZoom(2.0,2.0);
glCopyPixels(0,0,Width,Height,GL_COLOR);
glFlush();
}
void image_display()
{
glClear(GL_COLOR_BUFFER_BIT);
glRasterPos2i(0,0);//和位图一样先设好光栅位置
glDrawPixels(Width,Height,GL_RGB,GL_UNSIGNED_BYTE,image);//绘制
glFlush();
image_motion(2*Width,2*Height);
}
void reshape_image(int w, int h)
{
if (h == 0)
h = 1;
height=h;
glViewport(0, 0, (GLsizei)w, (GLsizei)h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluOrtho2D(0.0, (GLdouble)w, 0.0, (GLdouble)h);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
int main_image()
{
glutInitDisplayMode(GLUT_RGB | GLUT_SINGLE);
glutInitWindowSize(100, 100);
glutCreateWindow("text");
setup_image();
glutDisplayFunc(image_display);
glutReshapeFunc(reshape_image);
glutMainLoop();
return 0;
}
int main(int argc, char ** argv)
{
/*初始化*/
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE | GLUT_RGB);//单缓冲、RGB模式
glutInitWindowSize(960, 540);
glutInitWindowPosition(200, 200);
glutCreateWindow("三角形");//窗口标题
//init();
/*绘制与显示*/
glutReshapeFunc(reshape_image);//窗口大小发生改变时采取的行为
glutDisplayFunc(image_display);//显示绘制图形
glClearColor(1.0f, 1.0f, 1.0f, 1.0f);
glutMainLoop();//循环
return(0);
}