PosterBrot16

Short:        mandelbrot set poster generator
Author:       deltax@hermes.acm.rpi.edu
Uploader:     deltax hermes acm rpi edu
Type:         gfx/fract
Architecture: m68k-amigaos

Copyright information

PosterBrot 1.6 - A Mandelbrot set poster generator
Copyright © 1994 George Leonidas Coulouris

        The  author  is not responsible for any damage, whether direct
or consequential, resulting from the use of this program.

        This  program is free software; you can redistribute it and/or
modify  it under the terms of the GNU General Public License Version 2
as published by the Free Software Foundation.

        This  program  is  distributed  in  the  hope  that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY  or  FITNESS  FOR  A  PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

        You  should  have  received  a  copy of the GNU General Public
License  along  with  this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.


Introduction

        PosterBrot is a greyscale Mandelbrot set poster generator.  It
will  generate  a  set of PGM image files, which, when printed, can be
combined into a poster.


Features

        -  Portable.   PosterBrot is written in ANSI C, and can ported
to any platform which supports the standard.

        -  FPU support.  Directly uses the MC6888x, if available.

        -  Smooth.  PosterBrot colors by escape radius, rather than by
escape  iteration.   This  method  produces extremely smooth gradients
with fewer iterations per pixel.


System requirements

        - AmigaDOS 2.0
        - Software suitable for printing PGM images


Revision history

1.0 - 1.2       Internal revisions.

1.3             15 Jan 93.  First public release.

1.4             21 May 94.  Removed progress report buffering.

1.5             31 May 94.  Rewrote iteration function in
floating-point assembler ( ~17% speed gain ).

1.6             9 June 94.  Tightened assembler code, made PC-relative.
Removed percentage indicator.