Quake3World

im not sure if this is the right thread for this, but ive recently released a shader i was working on for the longest time in my defrag map ghost-accel (u can find it on q3a.ath.cx) anyway its a water shader where the top is mirrored. it works great (also a great fps killer lol) but the only thing i was dissapointed by was the fact the it was mirrored 100% there was no transparency at all..

does any1 know if this is possible at all??

Urban Terror has mirroring but yet transparent glass, but I don't know if it's because of the shader or if there's programming involved.
EDIT: UrT has "normal" glass (without any mirror func) too, so I'm not sure if it would help anything to post an UrT glass shader here.