实验 2设计一个真实感图形显示系统

选题 60 分：有灯光、材质、纹理 (p203,p206) 的场景 80 分：＋交互控制场景（ figure11.1.c ） 100 分：＋读入多边形物体＋ Bezier 曲面

#include <glut/glut.h>#define myAngle 45.float theta = 22.;GLfloat red[]={1.0, 0.0, 0.0, 1.0};void myinit(void){

GLfloat light_position0[]={ 0.0, 10.0, 0.0, 1.0 };GLfloat light_color[]={ 1.0, 1.0, 1.0, 1.0 };GLfloat ambient_color[]={ 0.3, 0.3, 0.3, 1.0 };

glClearColor( 0.7, 0.7, 0.7, 1.0 );glLightfv(GL_LIGHT0, GL_POSITION, light_position0 );glLightfv(GL_LIGHT0, GL_AMBIENT, ambient_color );glLightfv(GL_LIGHT0, GL_SPECULAR, light_color );glLightfv(GL_LIGHT0, GL_DIFFUSE, light_color );glClearDepth(1.0f);

glDepthFunc(GL_LEQUAL); glEnable(GL_DEPTH_TEST );

glEnable(GL_LIGHTING); // so lighting models are usedglEnable(GL_LIGHT0); // we'll use LIGHT0

}void display( void ){ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glMatrixMode(GL_MODELVIEW);

glLoadIdentity();gluLookAt(0,0,5,0,0,-1,0,1,0);glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, red );glRotatef(theta,0,1,0);

glScalef(1.0f, 2.0f, 1.0f); glutSolidTeapot(1.0); glutSwapBuffers(); }void reshape(int w,int h){

glViewport(0,0,(GLsizei)w,(GLsizei)h); glMatrixMode(GL_PROJECTION);glLoadIdentity();gluPerspective(myAngle,(float)w/(float)h,0.02,100.0); glutPostRedisplay();

}void animate(void){

theta += 0.05;glutPostRedisplay();

}int main(int argc, char** argv){

glutInit(&argc,argv);glutInitDisplayMode (GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);glutInitWindowSize(800, 800);glutInitWindowPosition(0, 0);glutCreateWindow(" 实验 ");glutDisplayFunc(display); glutReshapeFunc(reshape); glutIdleFunc(animate); myinit();glutMainLoop();

}

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