In article <3A3E49C1.2B818210@gmx.de>, Christoph Hormann 
<chr### [at] gmxde> wrote:

> Chris Huff wrote:
> > 
> > I agree, it would be nice if a sphere could use a geodesic tesselation,
> > a cube could be done with 12 triangles, etc...
> 
> But that would not work for CSG.  You would either have to calculate the
> boundary lines between the different parts or calculate the CSG of
> different solid meshes separately.

It would work perfectly fine for CSG...because they are a separate type 
of object, they will just use the marching tetrahedrons method (or some 
other sampling method) until someone implements something better 
specifically for them. The whole idea is that you don't have to write a 
specialized method for every object at once, you can do it for a few 
objects at a time.

Someone could eventually go through the trouble to implement the code 
for CSG on meshes, and tesselate the objects individually and combine 
them together. Unions, for example, would be very easy, just put the 
meshes of each object together into one big mesh, you don't have to 
worry about boundary lines.

-- 
Christopher James Huff
Personal: chr### [at] maccom, http://homepage.mac.com/chrishuff/
TAG: chr### [at] tagpovrayorg, http://tag.povray.org/

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