reducer

Short:        Polygon-reducer for Lightwave
Author:       epgbc@cluster1.urz.Uni-Halle.DE (Andreas Maschke)
Uploader:     epgbc cluster1 urz Uni-Halle DE (Andreas Maschke)
Type:         gfx/3d
Architecture: m68k-amigaos


One week ago I downloaded a starfield from Aminet which consists
of polygons with 6 edges. Because the object was in TDDD-format (triangles)
and I had to render a scene using Lightwave I wanted to merge the
polygons. So I tried out PixPro which needed a lot of time and
finally destroyed the object.
O.k., I said, write your own one.

The program reducer is the result (of some hours hacking C-language). It's
faster than PixPro and produces a starfield I can use.

Summary:
 Advantages:     -speed
                 -external small program which can be invoked
                  via batchfiles,...
                 -merges only polygons which remain to same surface
 Disadvantages:  -the fast (GCC-)version crashes after a stack-overflow
                 -It can't close polygons which use one edge two or
                  more times, e.g. the front-face of an "O"-letter

                         /-----\
                        | /---\ |
                        | |   |-| <- edge used twice
                        | |   | |
                        | \---/ |
                         \-----/

-----------------------------------------------------------
Author:

                         Andreas Maschke
                         Zenkerstraße 5
                         06108 Halle/Saale
                         Germany

                   Phone: ++49 (0)345/5170331
                   EMail: epgbc@cluster1.urz.Uni-Halle.DE