These macros generate height field meshes from pigments from within POV.

SquareHF.jpeg is an ordinary square height field, like the
height_field {} primitive object in POV.

SphereHF.jpeg is the first type of spherical height field, using a 2D 
square wrapped around a sphere with spherical coordinates.

Sphere2HF.jpeg is the second type of spherical height field, generated 
by recursively subdividing an octahedron, dividing each triangle into 4 
triangles. This doesn't have the "pinching" toward the y axis like the 
first type does.

I still haven't done smoothing, I'll try to figure out a good way to do 
it.

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

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Attachments:
Download 'SquareHF.jpeg.jpg' (6 KB) Download 'SphereHF.jpeg.jpg' (9 KB) Download 'Sphere2HF.jpeg.jpg' (6 KB)

Preview of image 'SquareHF.jpeg.jpg'

Preview of image 'SphereHF.jpeg.jpg'

Preview of image 'Sphere2HF.jpeg.jpg'