**********************************
* 3DSTUFF.ZIP                    *
* by Mark Grocki                 *
* AOL upload                     *
* Applied Graphics Technologies  *
* August 1, 1995                 *
**********************************

   Hello there!

   In this ZIP file you'll find some of my 3D code: drawing polygons, 
creating 3D objects, displaying those objects, and some modifications I made
to some published ray-casting code.  In this ZIP file is...

   CAD3D.C, CAD3D.EXE : Source and executable code for the 3D CAD program
                        Read the directions and follow them carefully!

   DEMO3D.C, DEMO3D.EXE : Source and executable code for the 3D object
                          viewing demo.  Make sure all your 3D files (with
                          extension .3D) are in the same directory.

   RAYCAST.C, RAYCAST.EXE : Source and executable code for the ray-casting
                            engine first published in "Tricks of the Game
                            Programming Gurus" under the name RAYLIST.C, 
                            but modified.  It uses some of the optimizations
                            from the Warlock code (also in the book), and
                            now uses 320x200x256 instead of 640x400x16.  Also
                            includes different colored blocks and distance
                            shading.  Check it out!

   POLYGON.C : Source code (NOT stand alone) of the polygon drawing engine.
               Be sure to look at DEMO3D.C to see how it's used.

   *.3D : 3D object files created with CAD3D and can be displayed with DEMO3D.

   RAYMAP.DAT : ASCII data file for RAYCAST.

   README!.TXT : This file.
   
   All the code was compiled under QuickC 2.5 (yuck, I know) and requires a
286 or better (386 severely recommended).  A little modification and the code
can be compiled by Microsoft C/C++.

   Feel free to use any of the code in your own programs.  Be sure to give ME
credit.  Better yet, send around $10 (check or money order, please) to:

                     Mark Grocki
                     5108 Crowfoot Dr.
                     Troy, MI 48098

   I'll use the money to get a better compiler!  How much is Watcom? :)
   
   Thanks, and enjoy!

                                          Mark Grocki
                                          mgrocki@aol.com

