no fog in smooth shading

how do i get opengl to do fog when im in smooth shading mode???

ok here th bit of fog code from my prog

glEnable(GL_FOG); //fog settings
GLfloat fogColor[4] = {0.0, 0.0, 0.7, 0.5};
glFogfv (GL_FOG_COLOR, fogColor);
glFogf (GL_FOG_DENSITY, 0.1);
glFogf (GL_FOG_START, 1);
glFogf (GL_FOG_END, 10);
glClearColor(0.0, 0.0, 0.7, 1.0);

[This message has been edited by Zerosignull (edited 05-20-2000).]

Could you explain the problem in more detail?

Check that blending is on.


Did you specify the fog mode?

e.g. glFog(GL_FOG_MODE, GL_EXP2);


to Eric Chan:

Check that blending is on.
Don’t need it.
The fog is independent from blending.

Did you specify the fog mode?
Look at this line:

to Zerosignull:

Make sure that you geometry lies in the fog range. (GL_FOG_START…GL_FOG_END)

btw, if you want linear fog, you don’t need to set GL_FOG_DENSITY.
This parameter is used for exponential fog only.