the only tutorials i could find on openGL programming in OSX were on nehe, unfortunately those were written before xcode and im sure some things have changed the years since (hence, my code doesnt work)

i followed this tutorial for starting an openGL app, but when compiling i get an error that says _DrawGLScene, _InitGL, and _ReSizeGLScene are undefined

can anyone help me with this? (or point me to some more up-to-date tutorials)

http://developer.apple.com/samplecode/Gr...-date.html