only one light works?
i put two lights in the scene,but only LIGHT0 works. Thanks for your reply in advance.
******************the procedure is as follows**************************
void init(void)
{
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 };
glClearColor (0.0, 0.0, 0.0, 0.0);
glShadeModel (GL_SMOOTH);
GLfloat light1_ambient[]={0.2,0.2,0.2,1.0};
GLfloat light1_position[] = { -2.0,2.0,1.0, 1.0 };
GLfloat light1_diffuse[]={1.0,1.0,1.0,1.0};
GLfloat light1_specular[]={1.0,1.0,1.0,1.0};
GLfloat spot_direction[]={-1.0,-1.0,0.0};
glLightfv(GL_LIGHT1, GL_AMBIENT, light1_ambient);
glLightfv(GL_LIGHT1, GL_DIFFUSE, light1_diffuse);
glLightfv(GL_LIGHT1, GL_SPECULAR, light1_specular);
glLightfv(GL_LIGHT1, GL_POSITION, light1_position);
glLightf(GL_LIGHT1, GL_CONSTANT_ATTENUATION, 1.5);
glLightf(GL_LIGHT1, GL_LINEAR_ATTENUATION, 0.5);
glLightf(GL_LIGHT1, GL_QUADRATIC_ATTENUATION, 0.2);
glLightf(GL_LIGHT1,GL_SPOT_CUTOFF,45.0);
glLightfv(GL_LIGHT1,GL_SPOT_DIRECTION,spot_direction);
glLightf(GL_LIGHT1,GL_SPOT_EXPONENT,2.0);
glMaterialfv(GL_FRONT, GL_SPECULAR, mat_specular);
glMaterialfv(GL_FRONT, GL_SHININESS, mat_shininess);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_LIGHT1);
glEnable(GL_DEPTH_TEST);
}
hi,
I tried your setting and it works for me...
I guess you are trying to spot-light a larger mesh, and in that case you should check your attenuations. Furthermore note that your light is not __shining__ towards the locale...
playing with spot cutoff might also help you.
xibo
EDIT: Ah, and welcome to GameDev.net.
I tried your setting and it works for me...
I guess you are trying to spot-light a larger mesh, and in that case you should check your attenuations. Furthermore note that your light is not __shining__ towards the locale...
playing with spot cutoff might also help you.
xibo
EDIT: Ah, and welcome to GameDev.net.
This topic is closed to new replies.
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