Creating a neon glow?

[CoolFunkMan]

I'm creating a HL2: DM map that has massive generators in the main room. However, I'd like a neon glow effect for the "cores" of the reactors. Is this possible, and if so how do I do it?

Thanks in advance...

 

[The Dark Elf]

a shader, or a brush entity set to a different render type (additive perhaps?) or use sprites/glow entities

 

[Jay9475]

Is there a list anywhere of the diff render types? I've always stayed away from that because there are no choices, you just have to know them,

-J

 

[xtremdys]

Edit: never mind, I misread your post.