Jeremy M. Praay wrote:
> "Jim Charter" <jrc### [at] msncom> wrote in message 
> news:4207ac7b@news.povray.org...
> 
>>The ultimate intention is to do it with isoblobs and real displacement
>>based on the texture.  In fact I first modeled the figure in isoblobs
>>using iso_csg,  and I do have an early render with a displacement using
>>a granite texture (attached),  but I switched to regular blobs and
>>normals for development purposes.  I tried one overnight render with
>>this complex texture but I was very slow.  I was using the adaptive max
>>gradient like a good little doobie which is probably why.  I expect I
>>can get good results cheating on the max gradient but it will still be a
>>long render so I am trying to put together a little nicer setting to go
>>along with it.
>>
>>Here is some picture of Boli
>>http://www.hamillgallery.com/BAMANA/BamanaBoli/BamanaBoli04.html
>>
> 
> 
>>Here the fissures have more of a crevice quality which should be a
>>relatively easy effect.  The one I was studying in the Metropolitan
>>Museum, however, shows more of a flaking effect with the edges at the
>>cracks scalloped outward more.
> 
> 
> 
> Googling also gave me this link, if you're interested in other photographic 
> references: http://www.randafricanart.com/Henfrey_Boli.html.
> I can see both types of surfaces here.  Judging from these (at the bottom of 
> the page, esp.), your attempt at the texture of the surface seems really 
> good.  Is that one from the MMOA the same one that you were looking at (near 
> the bottom of the page)?

Wow!  That link pretty much sums it up.  Yes that must be the one, there 
is only one on display anyway and the largesh head and relatively stubby 
legs compared to others looks right.  It is the opposite aspect that is 
on dislap in the case however.  But I feel so vindicated.  That link 
does show that some have a more crusty look, others more doughy.


> 
> The texture of your original also makes me think of brownies.  It seems to 
> be a great multi-purpose surface texture: paint coming off walls, desert 
> mud, etc.  I may have to play around with the code you supplied.  :-)
> 

One vital thing I omitted there was that I am applying a poly_wave .25 - 
.35  And as I think I footnoted, I reduced the octaves to 4 and 
compensated by increasing lambda and omega slightly

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