old quake texturing tutorial by ID?

[MyPeople]

my friend was asking about spec maps yesterday at work and was asking why i make things like the tongue spec map a little blueish green...i couldn't find that ID tutorial where they talk about why to change spec colors for certain colors? anyone know what i'm talking about?

i think it was part of some quake wiki or something? i looked and looked and cant find this again. thanks for any help btw.

[MyPeople]

nm i finally found it, thought others might not know about it? here it is.

http://www.iddevnet.com/quake4/ArtReference_CreatingModels

[Cyrael]

great link, thanks!

[Wynn]

interesting article, thanks for sharin