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"Marc-Hendrik Bremer" <Mar### [at] t-online de> wrote:
> Slime schrieb in Nachricht <3c2ffc25@news.povray.org>...
> >Hmm, what's the formula for a klein bottle?
>
> How about using the f_klein_bottle(x,y,z, P0) in functions.inc as an
> isosurface?
I've tried that one but it gives very strange results:
#include "colors.inc"
#include "functions.inc"
light_source { <10,10,10> color White }
camera { location<4,4,4> look_at<0,0,0> }
isosurface {
function { f_klein_bottle(x,y,z,1) }
accuracy 0.01
max_gradient 4
pigment { color rgb <0, 2, 0> }
}
// pigment {image_map { jpeg "test.jpg" map_type 1 interpolate 2 filter all
1.0 } }
box { <-5, -2, -5>, <5, -2, 5> pigment { color White } }
The result is:
http://vanheusden.com/pov/surface.png
Doesn't look like the ones on wikipedia
(http://en.wikipedia.org/wiki/Klein_bottle).
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