In article <3f36803d@news.povray.org>, Wolfgang Wieser <wwi### [at] gmxde> 
wrote:

> Wouldn't it be easier to use a lathe with _quadratic_
> spline for the parabolic mirror? 

The easiest way would be to use an isosurface, a quadric is probably the 
most efficient way. I wouldn't use a lathe, though it would work.

There are paraboloid shapes based on the quadric primitive in 
shapes_old.inc.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/

Post a reply to this message