"Rick [Kitty5]" wrote:

> after the experiments i did, i also believe that povray can achive 'arnold',
> however its a long painfull process to get it just right!!
>

Actually, the parameters recently provided by MikeH, XPlo and TonyB seem to work
in a good number of situations, and quite fast too. Here are two experiments
with no "real" light sources and a sky sphere. The orientation of the light is
given by a gradient of the sky sphere pigment, such as :
sky_sphere{pigment{gradient x poly_wave 0.5 color_map{[0 White*1.3][1
SkyColor*0.5]} translate -x*0.5 scale 2}}
I do the tests with a low count (30) and render with something like 300. Both
images took approximately 15 min on a PIII 733.

G.

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