A very simple animation of a setup I did many years ago. Three coloured 
lights and a rotating piece of aluminium with a structure of big cristals.


Ingo

-- 
Photography: http://members.home.nl/ingoogni/
Pov-Ray    : http://members.home.nl/seed7/

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Attachments:
Download 'T.mpg' (215 KB)

Angle dependant pigments ahead of its time?

Bob

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Bob Hughes wrote:

>Angle dependant pigments ahead of its time?

Mmm that would be a nice feature.
This one only uses different oriented normals:

#declare Lin= normal{gradient x 25 warp {repeat x} scale 0.01}
#declare Ribbel= normal{
      crackle
      solid // MegaPov 0.4!
      normal_map {
         [0.0, Lin]
         [0.1, Lin]
         [0.1, Lin rotate <0,0,36>]
         [0.2, Lin rotate <0,0,36>]
         [0.2, Lin rotate <0,0,72>]
         .
         .
         .
         [0.8, Lin rotate <0,0,252>]
         [0.8, Lin rotate <0,0,288>]
         [0.9, Lin rotate <0,0,288>]
         [0.9, Lin rotate <0,0,324>]
         [1.0, Lin rotate <0,0,324>]
      }
} 


Ingo

-- 
Photography: http://members.home.nl/ingoogni/
Pov-Ray    : http://members.home.nl/seed7/

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In article <8ED8DF0B7seed7@204.213.191.228>, ing### [at] homenl (ingo) 
wrote:

> Bob Hughes wrote:
> 
> >Angle dependant pigments ahead of its time?
> 
> Mmm that would be a nice feature.

It already exists in a form, as the slope pattern. It only uses a fixed 
vector to measure the angle against, though...maybe it could be extended 
to use the ray instead.

-- 
Chris Huff
e-mail: chr### [at] yahoocom
Web page: http://chrishuff.dhs.org/

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