这个是书上的代码,就是一个茶壶加上光照。以后学深了再补。
运行效果:
代码如下:
#include<cstdio>
#include<GL\glut.h>
#include<Windows.h>
#include<algorithm>
using namespace std;
void init()
{
GLfloat mat_specular[] = { 1.0, 1.0, 1.0, 1.0 };
GLfloat mat_shininess[] = { 50.0 };
GLfloat light_position[] = { 1.0, 1.0, 1.0, 0.0 };
GLfloat white_light[] = { 1.0, 1.0, 1.0, 1.0 };
GLfloat Light_Model_Ambient[] = { 0.2, 0.2, 0.2, 1.0 };
glClearColor(0, 0, 0, 0);
glShadeModel(GL_SMOOTH);
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glLightfv(GL_LIGHT0, GL_DIFFUSE, white_light);
glLightfv(GL_LIGHT0, GL_SPECULAR, white_light);
glLightModelfv(GL_LIGHT_MODEL_AMBIENT, Light_Model_Ambient);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glutSolidTeapot(0.8);
glFlush();
}
void reshape(int w, int h)
{
glViewport(0, 0, w, h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if (w <= h)
glOrtho(-1.5, 1.5, -1.5*h / w, 1.5*h / w, -10, 10);
else
glOrtho(-1.5*w / h, 1.5*w / h, -1.5, 1.5, -10, 10);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void initWindow(int &argc, char *argv[], int width, int height, char *title)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB|GLUT_DEPTH);
glutInitWindowPosition((GetSystemMetrics(SM_CXSCREEN) - width) >> 1, (GetSystemMetrics(SM_CYSCREEN) - height) >> 1); //指定窗口位置
glutInitWindowSize(width, height); //指定窗口大小
glutCreateWindow(title);
}
int main(int argc,char** argv)
{
initWindow(argc, argv, 1000, 500, "光照实验");
init();
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutMainLoop();
return 0;
}