Andy Cocker wrote:
>...

Snip --- 8< ---

> b) Any idea how I could make the floor using one isosurface, rather than a
> grid of many isosurfaces, as I have done here?
>...

I hope the code below solves this problem.

Experiment with the Xnr and Znr values (integers) to see how these 
works. (Also see attached image.)

I think that it's possible to construct a "ReplikateFunction" that 
also can generate grids of isosurfaces with an even number of "parts" 
along each side.


Btw.: 
You have a nice scene with interesting functions and patterns !


Regards,

Tor Olav
-- 
mailto:tor### [at] hotmailcom
http://www.crosswinds.net/~tok/tokrays.html


// ===== 1 ======= 2 ======= 3 ======= 4 ======= 5 ======= 6 ======= 7

#version unofficial MegaPov 0.5;

#include "colors.inc"

global_settings { ambient_light color White }

// ===== 1 ======= 2 ======= 3 ======= 4 ======= 5 ======= 6 ======= 7

$ CM = color_map { [ 0 rgb 0 ] [ 1 rgb 1 ] } 

$ CrackleFunction = 
function { pigment { crackle form <1, 0, 0> color_map { CM } } }

$ OtherFunction = function { x^2 + y^3 + z^2 }

$ Xspacing = 5;
$ Zspacing = 4;

$ ReplicateFunction =
function {
  OtherFunction(
    (x + if(x, 1, -1)*Xspacing/2) % Xspacing - if(x, 1, -1)*Xspacing/2,
     y,
    (z + if(z, 1, -1)*Zspacing/2) % Zspacing - if(z, 1, -1)*Zspacing/2
  )
}

$ Xnr = 3;
$ Znr = 2;

$ Gloop =
isosurface {
  function {
     ReplicateFunction(x, y, z)
    +CrackleFunction(x*2, y*2, z*2)
    -1
  }
  contained_by {
    box {
      -(<Xnr, 3.5, Znr> - <1, 0, 1>/2)*<Xspacing, 1, Zspacing>,
       (<Xnr, 1.0, Znr> - <1, 0, 1>/2)*<Xspacing, 1, Zspacing>
    }
  }
  max_gradient 6
  accuracy 1E-6
}

object {
  Gloop
  pigment { 
    gradient 6*y
    turbulence 0.5
    color_map {
      [ 0.0 color Blue + White ]
      [ 0.5 color Blue ]       
      [ 1.0 color Blue + White ]
    }
  }
  no_shadow
}

// ===== 1 ======= 2 ======= 3 ======= 4 ======= 5 ======= 6 ======= 7

background { color White }

light_source { 100*<3, 2, -1> color White }

camera {
  location 5*< 1,  3, -5>
  look_at < 0, -2,  0>
}

// ===== 1 ======= 2 ======= 3 ======= 4 ======= 5 ======= 6 ======= 7

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