[Haskell-cafe] Documentation for OpenGL?

[Eitan Goldshtrom]

Hi everyone. I'm looking for something specific. I'm trying to figure 
out how to use the depthFunc StateVar and I can't find any official 
documentation for it. I did a ":t depthFunc" in ghci and got "depthFunc 
:: StateVar (Maybe ComparisonFunction)" so I looked up 
ComparisonFunction and couldn't find anything official on that either. 
Is there any documentation for it? Maybe I wasn't looking in the right 
places? Thanks in advance.

-Eitan