Nbody3D Gravitational Simulator
version 2.0.010

written by Henley Quadling, 8th April, 1996

- This is a very early beta release, with many
  bugs (sorry).

- This software is freeware; you may distribute it
  freely as long as you distribute it free and unmodified.

- This software requires at least Windows NT 3.51, Intel or 
  Alpha. This software also runs in Windows 95 with the 
  appropriate Opengl dll's. It doesn't seem to work so well
  with the NT 4.0 beta 1 (build 1234).

Features:

1. OpenGL 3D animation.... A future release will have
   much improved openGL functionality, and more control
   over the rendering.

2. Multiple threads. This software has 6 threads. The
   Calculation and rendering are executed on seperate 
   synchronized threads, which should allow for very 
   efficient execution on SMP machines. I do not have 
   access to a SMP machine, so please tell me if there
   is a problem!

3. Windows 95 common controls, Drag and drop support, 
   toolbars, tooltips etc.

4. Completely written in C, for compact and fast code.

Installing:

If you are using this software in Windows 95, and you do 
not have the OpenGL dll's, you need to obtain them.
I have them on my nbody page: 
http://mnnt1.hep.umn.edu/nbody1.htm

Running:

1. Try the demo files, with the 'open and run' menu item, or
drag a demo file over the main dialog window. Other than
that, you are going to have to play with it, because I
dont have time to write a manual! The status bar messages
and tooltip messages should help out.

2. To build your own simulation, use the interact window.
Use the assist modes (eg, circle or binary) to help you
create good orbits. When the simulation is running, 
you can click on a body in the interact window to choose
a reference point for the reference frame you choose
in the 3D view window.

Have fun!