Thomas de Groot wrote:
> 
> Like Marc, I am impressed by your rocks, Christoph! I am a professional
> geologist, but I would certainly be fooled by this. I have seen it in lots
> of places. Congratulations!
> Which brings me to a question: I am trying to model this kind of sedimentary
> or tectonic layers, and especially to control their angle of dip. This last
> I find frustratingly difficult. Apparently, you have mastered this. How did
> you do it?

Generating a directed structure in rocks is quite simple in principal, 
you just have to non-unifomly scale the patterns you use for the surface 
structure.  Of course getting this 'look right' is not so easy.  And 
more complicated things like actual folding (i.e. a change of the 
direction of the rock layers) is more difficult.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 01 May. 2004 _____./\/^>_*_<^\/\.______

Post a reply to this message