Lights

system · March 21, 2001, 2:11am

Hi.

I have trouble: I can’t enable more than one light source. If I use glEnable with GL_LIGHT1-GL_LIGHT7 it doesn’t work!

Please, help…

P.S. Forgive me mine English, pls

Bob · March 21, 2001, 3:10am

GL_LIGHT1 and up is black by default, make sure you set their light parameters properly before using them.

system · March 21, 2001, 7:31am

Yes, I sure that I set light parameters…

Deiussum · March 21, 2001, 8:55am

How’d you set the light paramaters? What exactly do you mean by them not working? At the minimum you’ll have to set the diffuse and/or the ambient color properties for those lights. You’ll probably need to set the positional/directional properties as well.

system · March 21, 2001, 11:51pm

I set for the GL_LIGHT1 default parameters:

GL_DIFFUSE (1.0, 1.0, 1.0, 1.0)
GL_SPECULAR (1.0, 1.0, 1.0, 1.0)

…but it doesn’t take effect.

Or I must set something else?

Bob · March 22, 2001, 12:06am

Try remove (comment out that is) all code for all light but GL_LIGHT0. Then rename ALL GL_LIGHT0 to GL_LIGHT1, it that gives you the same result, you are obviously missing something important with the other lights in the old version.

Can be a driver issue aswell. Try updare your display drivers.

system · March 23, 2001, 4:30am

Yes, I miss some important light parameters.

Thanks for help!