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I already tried that but it returned around 492 results. Checking that out is gonna give you a pain in the head.

Where can I find really good and "EASY TO UNDERSTAND" tutorials on how to do RAYCASTING???
THanks.

I know how to change the colors of text and all but how do u know the color values like:
1 for red (Just as an example.]
THanks.

This questions is simple.
What does scanf do and what header file does it include?
Help appreciated.

Ok I got some sample code on how to display PCX files. But what is the logic behind loading PCX files. I mean how do you do it?
Please explain it to me in simple words.
Thanks to all who help and...

Whoops that is :

Wolf 3D

How do games like WOLF3D,DOOM etc. show 3D from 2D.
I am not sure whether they are 2D, but I just heard somewhere.
I mean what is the logic behind that 2D method? How does it work?
Are there any...

Reality Factory is a good 3D engine.
It's found at http://www.genesis3d.com/~rfactory