You mean the volumetric shadows? Hmm, sort of. You can't get the same nice shadows, but you can get ones that are almost as good.
Just type \cg_shadows 3 in the console. You'll notice the shadows are darker and kind of buggy. I keep it on normal, because they both look ugly.
Clarionet, n. An instrument of torture operated by a person with cotton in his ears. There are two instruments that are worse than a clarionet -- two clarionets.