Original Post
hi all ! Im trying to enable lighting in my scene in opengl. The thing is that when I enable it all I get is a black window (if I disable the lightning then I can see my model). Here is the code that Im usingç And yes Im enabling GL_LIGHTING when I Initiate the engine. THanks for the help!
void CGL_Light3D::Init ( int light ) {
LIGHT = light;
// set all members to OpenGL defaults
// all values comply with the OpenGL 1.2.1 Specification
ambient[0] = 0.0f;
ambient[1] = 0.0f;
ambient[2] = 0.0f;
ambient[3] = 1.0f;
if ( light == GL_LIGHT0 ) {
diffuse[0] = 5.0f;
diffuse[1] = 1.0f;
diffuse[2] = 2.0f;
diffuse[3] = 1.0f;
} else {
diffuse[0] = 0.0f;
diffuse[1] = 0.0f;
diffuse[2] = 0.0f;
diffuse[3] = 1.0f;
}
if ( light == GL_LIGHT0 ) {
specular[0] = 1.0f;
specular[1] = 1.0f;
specular[2] = 1.0f;
specular[3] = 1.0f;
} else {
specular[0] = 0.0f;
specular[1] = 0.0f;
specular[2] = 0.0f;
specular[3] = 1.0f;
}
position[0] = 0.0f;
position[1] = 1.0f;
position[2] = 0.0f;
position[3] = 0.0f;
spot_direction[0] = 0.0f;
spot_direction[1] = 0.0f;
spot_direction[2] = -1.0f;
spot_exponent = 0.0f;
spot_cutoff = 180.0f;
constant_attenuation = 1.0f;
linear_attenuation = 0.0f;
quadratic_attenuation = 0.0f;
TurnOn(LIGHT);
}
void CGL_Light3D::TurnOn ( int light ) {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
LIGHT=light;
glEnable(LIGHT);
glLightfv(LIGHT, GL_AMBIENT, ambient);
glLightfv(LIGHT, GL_DIFFUSE, diffuse);
glLightfv(LIGHT, GL_SPECULAR, specular);
}
void CGL_Light3D::TurnOff ( int light ) {
LIGHT=light;
glDisable(LIGHT);
}
void CGL_Light3D::TurnOffAllLights () {
glDisable(GL_LIGHTING);
}