In article <3AA16D6D.72C85D84@gmx.de>, Christoph Hormann 
<chr### [at] gmxde> wrote:

> Looks very interesting, although i did not yet totally understand how the
> second and third one work, are you evaluating the pigment in a 2d plane or
> in 3d space?

3D space, the surface of a 1-unit-radius sphere centered at < 0, 0, 
0>...you could map the sphere to a 2D plane with the spherical warp, if 
you wanted, but this method lets you get completely smooth, continuous 
results.


> The third one looks similar to a sphere-crackle isosurface, that lead me
> to the idea of an isosurface tesselation macro.  Since Warp's tesselation
> patch is still buggy and does not work well on isosurfaces, that could be
> quite useful IMO.

This would be extremely slow as a macro or include...maybe too slow to 
be practical. Also, as I recall, Warp's tesselation patch works fine 
with isosurfaces using method 2, and the problem with method 1 is 
actually with the isosurface object itself, not the tesselation patch. 
There is that odd bug with missing/misarranged triangles, but that often 
doesn't pop up.

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

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