Tim Cook wrote:
> Hmm, and it's 21600x21600 chunks, too...how do I make an isosurface that 
> applies an image as a radius modifier to a section of a sphere so that 
> the entire image maps to a 45x45-degree segment?

Just map it accordingly - using a mapping warp or manually using the 
f_th()/f_ph() functions:

#local fn_Spherical=
   function {
     fn_Flat(1-(f_th(x,z,y)+pi)/(2*pi), f_ph(x,-z,y)/pi, 0)
   }

Christoph

-- 
POV-Ray tutorials, include files, Landscape of the week:
http://www.imagico.de/ (Last updated 31 Oct. 2005)
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