"R. Suzuki" <r-s### [at] aistgojp> wrote in message
news:3be65f1a@news.povray.org...
> Here is an example of isosurfaces.  The POV code is below.
> The rendering time is about 6 min for [640x480 No AA] on my PC (Celeron
> 600MHz).
> R. Suzuki
>
> #version 3.5;
> #include "colors.inc"
> #include "functions.inc"
> #include "metals.inc"
> #include "stones.inc"
>
> camera {location  <0.0, 2.8, -4.0>  direction 1.8*z
>         right     x*image_width/image_height
>         look_at   <0.0, 0.2,  0.0>}
>
> sky_sphere { pigment { gradient y
>     color_map { [0.0 rgb <0.6,0.7,1.0>] [0.7 rgb <0.0,0.1,0.8>]}
> }}
> light_source { <0, 0, 0> color rgb 1.8 translate <-30, 30, -30>}
>
> object{isosurface {
>  function  {
>           f_r((mod(x*80+160+sin(y*pi*3+f_noise3d(x*10,y*2,z*10)*pi*0.5
>              +f_noise3d(x*39,y*3,z*41)*pi*y*0.3)*3,1)-0.5)*0.0125,0,
>             (mod(z*80+160+sin(y*pi*3+f_noise3d(x*7.3,y*3,z*8.65)*pi)*3,1)
>              -0.5)*0.0125)+y*y*0.04  | y-0.02   }
>             contained_by { box { <-2,0.0,-2> <2,0.34,2> } }
>             threshold 0.005
>             accuracy 0.0005
>             max_gradient 2
>             rotate y*-2
>             scale 2
>             texture { pigment{gradient y
>                   color_map { [0.0 rgb 0] [0.80 rgb 0.7] }
>                 }
>                 finish{ambient 0.25 diffuse 0.5 specular 0.4}
>             }
> }}
>
> sphere{<0,0.55,-0.5>,0.4 texture {T_Stone19 scale 0.4} }
>
> #declare pi_half=pi/2;
> #declare pi_2=pi*2;
> isosurface {
>      function { f_mesh1(atan2(x,z)/pi_half,f_torus(x,y,z,0.75,0.15),
>        atan2(y, f_r(x,0,z)-0.75)/pi_2,1/70,1/70, 1, 0.0025, 1) }
>         contained_by { box { <-1,-0.4,-1>, <1,0.6,1> } }
>         threshold 0.002
>         accuracy 0.0002
>         max_gradient 1.2
>         texture {T_Copper_3A}
>         scale 1.4  translate <0,0.7,-0.5>
> }

     Oh man....  Look at that code.......  I'll never be able to do this.

      Lovely image though.

     ~Steve~  (...feeling very inadequate).


>
>

Post a reply to this message