Thanks Chris, I'll file this for later use. 

Chris Colefax wrote:
> 
> In response to Peter Cracknell's recent Bear posting... the fur on the left
> uses a shell object with a semi-transparent, bumped texture (suitable for
> animations):
> 
>   union {
>     sphere {0, 1 pigment {rgb <.6, .3, .1>}}
>     sphere {0, 1 pigment {bozo color_map {[0 rgb <.7, .4, .2>] [.5 rgbt <.7,
> .4, .2, 1>]}
>       scale <1, 4, 1>/150 warp {turbulence .4 octaves 2}}
>       normal {bumps 1 scale <1, 4, 1>/150 warp {turbulence .3 octaves 2}}
>       scale 1.06}
>     }
> 
> while the fur on the right uses fast-rendering noisy media:
> 
>   union {
>     sphere {0, 1 pigment {rgb <.6, .3, .1>}}
>     sphere {0, 1 pigment {rgbf 1} hollow
>       interior {media {absorption (1 - <.7, .4, .2>)
>         density {spherical color_map {[0 rgb 0] [.1 rgb 5]}}
>         intervals 1}}
>       scale 1.1}
>     }
> 
>  [Image]

-- 
Cheers
Steve              email mailto:sjl### [at] ndirectcouk

%HAV-A-NICEDAY Error not enough coffee  0 pps. 

web http://www.ndirect.co.uk/~sjeln/

or  http://start.at/zero-pps

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