flipcode - Building a 3D Portal EngineBuilding a 3D Portal Engine - Issue 01 - Introduction by (01 January 1999) Welcome to the first episode in a long series of articles about state-of-the-art 3D coding, written by the Phantom. In this first article we are not going to code anything (you're not supposed to touch anything yet), but we will merely dive into the subject and get our mind focused on what we want. Then, starting next week,
