aaglo wrote:
> Nice abstracty :)
> 
> Jim Charter <jrc### [at] msncom> wrote:
> 
>>Jim Charter wrote:
>>
>>
>>>maybe reuse the wood pattern or similar several times?
>>
>>a quick try in p.b.scene-files
> 
> 
> Hmm.. is that some sort of averaged bump map (can they be averaged?)?

I did post the code.  But, it is averaged, it is not a "map" in the 
sense of using some sort of raster image.  It is a "map" in the sense 
that the pattern is defined in a pigment statement so that the 
pigment_map can be used to shape the profile of the ripple.  It is then 
inserted into the normal statement via the pigment_pattern wrapper.  The 
averaging of several instances is applied in the normal statement.


> 
> And how about making some sort of height-field with co-centric spotlights
> (with positive and negative colour values)?
> 

Sounds like a possibility.  The biggest challenge is shaping the ripple. 
  The code I posted is only partially successful in that regard.

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