分享一下我老师大神的人工智能教程！零基础，通俗易懂！http://blog.csdn.net/jiangjunshow
也欢迎大家转载本篇文章。分享知识，造福人民，实现我们中华民族伟大复兴！
代码如下：
#define GLUT_DISABLE_ATEXIT_HACK#include "gl/glut.h"#pragma comment(lib, "glut32.lib")//显示 回调函数void OnDisplay(void){ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glColor3f(0.7f,0.7f,0.7f); glutSolidSphere(50.0f,50.0f,50.0f); //绘制一个浅灰色的球体 glutSwapBuffers();}//窗口尺寸变化后的回调函数void OnReShape(int w,int h){ glViewport(0,0,w,h); glMatrixMode(GL_PROJECTION); //将当前矩阵指定为投影模式 glLoadIdentity(); GLfloat aspect =(float)w/(float)h; if(w<=h) { glOrtho(-100.0f,100.0f,-100.0f/aspect,100.0f/aspect,-100.0f,100.0f); } else { glOrtho(-100.0f*aspect,100.0f*aspect,-100.0f,100.0f,-100.0f,100.0f); }}//按键处理回调函数void OnKey(GLubyte key,GLint x,GLint y){ switch(key) { case 0x31: //打开红色射灯 glDisable(GL_LIGHT2); glDisable(GL_LIGHT3); glEnable(GL_LIGHT1); break; case 0x32: //打开绿色射灯 glDisable(GL_LIGHT1); glDisable(GL_LIGHT3); glEnable(GL_LIGHT2); break; case 0x33: //打开蓝色射灯 glDisable(GL_LIGHT2); glDisable(GL_LIGHT1); glEnable(GL_LIGHT3); break; case 0x34: //打开红色主光源 glDisable(GL_LIGHT0); glEnable(GL_LIGHT4); break; default: //关闭所有射灯并将主光源换成白色 glDisable(GL_LIGHT1); glDisable(GL_LIGHT2); glDisable(GL_LIGHT3); glDisable(GL_LIGHT4); glEnable(GL_LIGHT0); break; } glutPostRedisplay();}//设置渲染环境void SetupRC(){ glClearColor(0.0f,0.0f,0.0f,1.0f); glEnable(GL_DEPTH_TEST); glShadeModel(GL_SMOOTH);}//设置光照void SetupLights(){ GLfloat ambientLight[]={0.2f,0.2f,0.2f,1.0f};//白色主光源环境光 GLfloat diffuseLight[]={0.8f,0.8f,0.8f,1.0f};//白色主光源漫反射 GLfloat specularLight[]={1.0f,1.0f,1.0f,1.0f};//白色主光源镜面光 GLfloat redAmbiLight[]={0.2f,0.0f,0.0f,1.0f};//红色主光源环境光 GLfloat redDiffLight[]={0.8f,0.0f,0.0f,1.0f};//红色主光源漫反射 GLfloat redSpecLight[]={1.0f,0.0f,0.0f,1.0f};//红色主光源镜面光 GLfloat lightPos[]={50.0f,120.0f,120.0f,1.0f}; //光源位置 GLfloat spotLightPos[]={0.0f,0.0f,200.0f,1.0f}; //射灯位置 GLfloat spotDir[]={0.0f,0.0f,-1.0f}; //射灯方向 GLfloat redLight[]={1.0f,0.0f,0.0f,1.0f}; //红色光源 GLfloat greenLight[]={0.0f,1.0f,0.0f,1.0f}; //绿色光源 GLfloat blueLight[]={0.0f,0.0f,1.0f,1.0f}; //蓝色光源 glEnable(GL_LIGHTING); //启用光照 glLightfv(GL_LIGHT0,GL_AMBIENT,ambientLight); //设置环境光源 glLightfv(GL_LIGHT0,GL_DIFFUSE,diffuseLight); //设置漫反射光源 glLightfv(GL_LIGHT0,GL_SPECULAR,specularLight); //设置镜面光源 glLightfv(GL_LIGHT0,GL_POSITION,lightPos); //设置灯光位置 glEnable(GL_LIGHT0); //打开白色主光源 glLightfv(GL_LIGHT4,GL_AMBIENT,redAmbiLight); glLightfv(GL_LIGHT4,GL_DIFFUSE,redDiffLight); glLightfv(GL_LIGHT4,GL_SPECULAR,redSpecLight); glLightfv(GL_LIGHT4,GL_POSITION,lightPos); glLightfv(GL_LIGHT1,GL_SPECULAR,redLight); //红色射灯 glLightfv(GL_LIGHT1,GL_POSITION,spotLightPos); glLightfv(GL_LIGHT1,GL_SPOT_DIRECTION,spotDir); glLightf(GL_LIGHT1,GL_SPOT_CUTOFF,85.0f); glLightfv(GL_LIGHT2,GL_SPECULAR,greenLight); //绿色射灯 glLightfv(GL_LIGHT2,GL_POSITION,spotLightPos); glLightfv(GL_LIGHT2,GL_SPOT_DIRECTION,spotDir); glLightf(GL_LIGHT2,GL_SPOT_CUTOFF,85.0f); glLightfv(GL_LIGHT3,GL_SPECULAR,blueLight); //蓝色射灯 glLightfv(GL_LIGHT3,GL_POSITION,spotLightPos); glLightfv(GL_LIGHT3,GL_SPOT_DIRECTION,spotDir); glLightf(GL_LIGHT3,GL_SPOT_CUTOFF,85.0f); glEnable(GL_COLOR_MATERIAL); //启用材质的颜色跟踪 glColorMaterial(GL_FRONT,GL_AMBIENT_AND_DIFFUSE); //指定材料着色的面 glMaterialfv(GL_FRONT,GL_SPECULAR,specularLight); //指定材料对镜面光的反应 glMateriali(GL_FRONT,GL_SHININESS,100); //指定反射系数}// mainvoid main(int argc,char* argv[]){ glutInit(&argc,argv); glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH); glutInitWindowSize(600, 480); glutCreateWindow("OpenGL光源"); glutReshapeFunc(OnReShape); glutDisplayFunc(OnDisplay); glutKeyboardFunc(OnKey); SetupRC(); SetupLights(); glutMainLoop();}运行效果如下：
给我老师的人工智能教程打call！http://blog.csdn.net/jiangjunshow
