Could anybody tell me what is Portal Rendering or where can i find info about this topic???? Where can i find information about programming playstion games?

Portal rendering is a method of 3d rendering that divides the world into separate "rooms" and tracks line of sight through portals between "rooms". sort of.

flipcode (www.flipcode.com) has a portal rendering tutorial that explains it a lot better than that as well as walks you through making a portal engine.

There''s this sweet thing called the "World Foundry SDK" or something, that let''s you compile games for playstation or PC.