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In the binaries newsgroup often appear examples of the 5 regular
polyhedra (the Platonic solids). In most cases they are constructed as
the union or merge of triangles or polygons.
For some application I wanted to apply CSG (difference) on some of those
objects, but for a reason unknown to me this failed. I have the
impression that the union or merge of triangles or polygons doesn't
produce a solid.
Is this exact and if so what can be done to define those objects as
solids.
Thanks,
--
Herman Serras
Gent (Belgium)
http://cage.rug.ac.be/~hs/
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Herman Serras wrote:
>
> In the binaries newsgroup often appear examples of the 5 regular
> polyhedra (the Platonic solids). In most cases they are constructed as
> the union or merge of triangles or polygons.
> For some application I wanted to apply CSG (difference) on some of those
> objects, but for a reason unknown to me this failed. I have the
> impression that the union or merge of triangles or polygons doesn't
> produce a solid.
> Is this exact and if so what can be done to define those objects as
> solids.
> Thanks,
Only objects with defined inside and outside can be used in CSG. Meshes,
triangles and polygons do not.
Have a look at 'shapes2.inc' for CSG-able versions of those shapes. Note
that right now these shapes are unbounded so they render quite slow.
Christoph
--
POV-Ray tutorials, IsoWood include,
TransSkin and more: http://www.tu-bs.de/~y0013390/
Last updated 13 Mar. 2002 _____./\/^>_*_<^\/\.______
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