计算机图形学与三维建模实验报告要点.doc

计算机图形学实验报告 openGL的基本使用 项目代码： // 2321321.cpp : 定义控制台应用程序的入口点。 #include stdafx.h #includeiostream #includestdio.h #includegl/glut.h #includegl/glu.h #includegl/gl.h using namespace std; //#includevgl.h opengl4.3 编程宝典第8版库函数 //#includeloadshaders.h GLfloat x=0.0,y=0.0,z=0.0;//用于平移的变量 GLfloat i=1.0,j=1.0,k=1.0;//用于缩放的变量 int d=1;//用于是否判断旋转的开关 GLfloat angle=0.0f;//旋转角度的变量 void myDisplay(void) { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // 创建透视效果视图 glMatrixMode(GL_PROJECTION); glLoadIdentity(); gluPerspective(90.0f, 1.0f, 1.0f, 20.0f); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); gluLookAt(0.0, 0.0, 10.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); // 定义4光源，从4个方向入射,第一个是白光，其他为红绿蓝 { GLfloat sun_light_position[] = { -5.0f, 5.0f, 0.0f, 1.0f }; GLfloat sun_light_position1[] = { 5.0f, 5.0f, 0.0f, 1.0f }; GLfloat sun_light_position2[] = { -5.0f, -5.0f, 0.0f, 1.0f }; GLfloat sun_light_position3[] = { 5.0f, -5.0f, 0.0f, 1.0f }; GLfloat sun_light_ambient[] = { 0.0f, 0.0f, 0.0f, 1.0f }; GLfloat sun_light_diffuse[] = { 1.0f, 1.0f, 1.0f, 1.0f }; GLfloat sun_light_diffuse1[] = { 1.0f, 0.0f, 0.0f, 1.0f }; GLfloat sun_light_diffuse2[] = { 0.0f, 1.0f, 0.0f, 1.0f }; GLfloat sun_light_diffuse3[] = { 0.0f, 0.0f, 1.0f, 1.0f }; GLfloat sun_light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f }; glLightfv(GL_LIGHT0, GL_POSITION, sun_light_position); glLightfv(GL_LIGHT0, GL_AMBIENT, sun_light_ambient); glLightfv(GL_LIGHT0, GL_DIFFUSE, sun_light_diffuse); glLightfv(GL_LIGHT0, GL_SPECULAR, sun_light_specular); glLightfv(GL_LIGHT1, GL_POSITION, sun_light_position1); glLightfv(GL_LIGHT1, GL_AMBIENT, sun_light_ambient); glLightfv(GL_LIGHT1, GL_DIFFUSE, sun_light_diffuse1); glLightfv(GL_LIGHT1, GL_SPECULAR, sun_light_specular); glLightfv(GL_LIGHT2, GL_POSITION, sun_light_position2); glLightfv(GL_LIGHT2, GL_AMBIENT, sun_light_ambient); glLightfv(GL_LIGHT2, GL_DIFFUSE, sun_light_diffuse2); glLightfv(GL_LIGH