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.
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