瑋倫WEEK7

 Lighting打光

void motion(int x,int y)

{

    light_position[0]= (x-150)/150.0*2;

    light_position[1]=-(y-150)/150.0*2;

    glLightfv(GL_LIGHT0,GL_POSITION,light_position);

    glutPostRedisplay();

}

滑鼠可改變光源