On Fri, 8 Feb 2002 16:31:12 +0800, Pabs wrote:
> Anyone else seen these cars/know how they do it?
> Maybe something similar to iridescence?

It's just like the ink on the new US $20, $50, and $100 bills (and maybe
the $10, too, but I don't think so.)  The ink is essentially transparent,
and it contains lots of little colored flat particles.  They have some 
sort of process by which they can cause all of those particles to align, 
changing the color of the ink for angles near the common normal of all 
the particles.  You can actually buy this stuff for your own projects; 
see http://www.krylon.com/product/mystique.asp

-- 
plane{-z,-3normal{crackle scale.2#local a=5;#while(a)warp{repeat x flip x}rotate
z*60#local a=a-1;#end translate-9*x}pigment{rgb 1}}light_source{-9red 1rotate 60
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"RP".01,0translate-<.6,.4,.02>pigment{bozo}}light_source{-z*3rgb-.2}//Ron Parker

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