计算机图形学与三维建模实验报告

计算机图形学实验报告

openGL的基本使用

1.项目代码：

// : 定义控制台应用程序的入口点。

#include""

#include

#include<>

#include

#include

#include

using namespace std;

//#include"" 编程宝典第8版库函数

//#include""

GLfloat x=,y=,z=;//用于平移的变量

GLfloat i=,j=,k=;//用于缩放的变量

int d=1;//用于是否判断旋转的开关

GLfloat angle=;//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, , , ;

glMatrixMode(GL_MODELVIEW);

glLoadIdentity();

gluLookAt, , , , , , , , ;

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[] = { , , , };

GLfloat sun_light_position1[] = { , , , };

GLfloat sun_light_position2[] = { , , , };

GLfloat sun_light_position3[] = { , , , };

GLfloat sun_light_ambient[] = { , , , };

GLfloat sun_light_diffuse[] = { , , , };

GLfloat sun_light_diffuse1[] = { , , , };

GLfloat sun_light_diffuse2[] = { , , , };

GLfloat sun_light_diffuse3[] = { , , , };

GLfloat sun_light_specular[] = { , , , };

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_LIGHT2, GL_SPECULAR, sun_light_specular);

glLightfv(GL_LIGHT3, GL_POSITION, sun_light_position3);

glLightfv(GL_LIGHT3, GL_AMBIENT, sun_light_ambient);

glLightfv(GL_LIGHT3, GL_DIFFUSE, sun_light_diffuse3);

glLightfv(GL_LIGHT3, GL_SPECULAR, sun_light_specular);

glEnable(GL_LIGHT0);

glEnable(GL_LIGHT1);

glEnable(GL_LIGHT2);

glEnable(GL_LIGHT3);

glEnable(GL_LIGHTING);

glEnable(GL_DEPTH_TEST);

}

//绘制坐标轴

{

glBegin(GL_LINE);

//x轴红色

glColor3f(1,0,0);

glVertex3f(10,0,0);

glVertex3f(-10,0,0);

//y轴绿色

glColor3f(0,1,0);

glVertex3f(0,10,0);

glVertex3f(0,-10,0);

//z轴蓝色

glColor3f(0,0,1);

glVertex3f(0,0,10);

glVertex3f(0,0,-10);

glEnd();

}

// 定义球体的材质并绘制

{

GLfloat ambient[] = { , , , };//环境颜色

GLfloat diffuse[] = { , , , };//散射颜色

GLfloat specular[] = { , , , };//镜面反射

GLfloat emission[] = { , , , };//发射光颜色

GLfloat hininess = ; //反射指数