我尝试了许多不同的 GL_SPECULAR，但没有一个能提供我期望的闪亮效果。
代码有什么问题？
GLfloat mat_ambient[]={0.329412, 0.223529, 0.027451};
GLfloat mat_diffuse[]={0.780392, 0.568627, 0.113725};
GLfloat mat_specular[]={0.992157, 0.941176, 0.807843};
GLfloat mat_shininess[]={0.21794872 * 128};
GLfloat light_position[]={1.0,1.0,1.0,0.0};
GLfloat light_ambient[]={1.0,1.0,1.0,1.0};
GLfloat light_diffuse[]={1.0,1.0,1.0,1.0};
GLfloat light_specular[]={1.0,1.0,1.0,1.0};
unsigned char last_key = 0;
unsigned char channel = 'r';
void init(void) {
glClearColor(0.0, 0.0, 0.0, 0.0);
glShadeModel(GL_SMOOTH);
glMaterialfv(GL_FRONT,GL_SPECULAR,mat_specular);
glMaterialfv(GL_FRONT,GL_SHININESS,mat_shininess);
glMaterialfv(GL_FRONT,GL_AMBIENT,mat_ambient);
glMaterialfv(GL_FRONT,GL_DIFFUSE,mat_diffuse);
glLightfv(GL_LIGHT0,GL_POSITION, light_position);
glLightfv(GL_LIGHT0,GL_AMBIENT, light_ambient);
glLightfv(GL_LIGHT0,GL_DIFFUSE, light_diffuse);
glLightfv(GL_LIGHT0,GL_SPECULAR, light_specular);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_DEPTH_TEST);
}
void display(void) {
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
const int length = 100;
glBegin(GL_QUADS);
glVertex2f(50, 50);
glVertex2f(50 + length, 50);
glVertex2f(50 + length, 50 + length);
glVertex2f(50, 50 + length);
glEnd();
glFlush();
}
void reshape(int w, int h) {
glViewport(0,0,(GLsizei) w,(GLsizei) h);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0, w, 0, h,-10.0,10.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
int main(int argc,char**argv) {
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_SINGLE|GLUT_RGBA|GLUT_DEPTH);
glutInitWindowSize(500,500);
glutInitWindowPosition(100,100);
glutCreateWindow("lighting demo");
init();
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutMainLoop();
return 0;
}