Robert Dawson wrote:
> 

    <snip>

> 
>         You could do bangs, loose ends, etc. with a surface (bezier patch?) whose
> pigment varied from clear to hair_color abruptly with high frequency and
> some large-scale turbulence. Careful anisotropic pre- and post-scaling
> could create density changes without upsetting the parallellism.
> 
>         -Robert Dawson


Actually, you want to AVOID strict parallellism, since this will cause 
moire patterns due to aliasing.  Better to have slightly sub-parallel.

Tim G.

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