// I'm substracting a isosurface from a sphere and I don't get the
// expected result. Image 1 is what I get, and image 2 is what I expect.
// The code for image 1 follows, does anyone know what I do wrong or if
// it's a bug or unsupported feature ?
// Thanks

#version 3.5;

#include "functions.inc"

global_settings { assumed_gamma 1.0 }

camera {
   location  <0.0, 2.5, -4.0>
   direction 1.5*z
   right     x*image_width/image_height
   look_at   <0.0, 0.0,  0.0>
}

background { color rgb <0.2,0.4,0.5> }

light_source { <20, 15, -30> color rgb 1 }

difference {
   sphere {
     0.0, 1
   }

   isosurface {
     function { f_sphere (x, y, z, 0.7) }
     contained_by { box { -1.2, 1.2 } }
     accuracy 0.001
     max_gradient 8
     translate <0.3,0.5,-0.5>
   }

   pigment { rgb <1,1,1> }

   rotate 30*y
}

cylinder { <0,-2,0>, <0,2,0>, 0.1 pigment { rgb <0,0,1> } }

Post a reply to this message

Attachments:
Download 'sphere_substr1.png' (10 KB) Download 'sphere_substr2.png' (13 KB)

Preview of image 'sphere_substr1.png'

Preview of image 'sphere_substr2.png'