Camera representation.

Hi. I'm working on a simple 3D engine, and I am stuck on the transformation part of it. I've been asking questions before on this forum, but they weren't really clear, so I'll try again. I am trying to create a class that will define an object's(whether it's a camera or a model) position and direction in space. I don't want this class to be API dependant. Basically, here's what I am thinking. The position will be defined by a point in space, that's simple. A rotation will be defined by 3 orthogonal vectors (up, forward and right). If I want to move the object's position forward, I'll move it along the "forward" vector. If I want to rotate it, I'll specify a number of degrees and rotate it around one of the three vectors (either around the up, forward or right vector). Is this a correct representation? If not, can you please point me in a different direction? If it is, can someone point me to a tutorial, or a relatively simple source code that implements something like this? Thanks in advance. Edited by - kill on 11/12/00 9:13:19 PM