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Jerry Anning wrote:
>
> Here is the source for the Isosurface golden egg I posted in
> povray.binaries.images. This uses the Isosurface patch (in this case,
> in the SuperPatch). The "5" and "6" could be made variable and the
> shape could easily be recast as a macro or as 3.02 isosurface code. The
> egg runs from y=-1 to y=1 along the y (up) axis with the narrow end on
> top. I modified the formula from a Ken Perlin C snippet. Maybe someone
> will find this useful.
Oops! Here is the source.
// Begin POV code
// Isoegg.pov - an Isosurface egg shape
#version 3.1;
global_settings { assumed_gamma 1.0 ambient_light <.846, 1.041, 1.041> }
camera { up <0, 1, 0> right <4 / 3, 0, 0>
location <0, 0, -20> look_at <0, 0, 0> }
light_source { <20, 50, -100> color rgb <1.103, .993, .772> }
#include "colors.inc"
#macro Fixcols(Badcol)
color rgb <pow(Badcol.red, 2.2), pow(Badcol.green, 2.2),
pow(Badcol.blue, 2.2)>
filter Badcol.filter transmit Badcol.transmit
#end
sky_sphere { pigment { Fixcols(CornflowerBlue) } }
isosurface
{
function { 1 - sqrt((x / ((5 - y) / 6)) * (x / ((5 - y) / 6)) +
y * y +
(z / ((5 - y) / 6)) * (z / ((5 - y) / 6))) }
accuracy .0001
max_trace 1
sign -1
method 1
texture
{
pigment
{
Fixcols(BrightGold)
}
finish
{
specular 1
roughness .0001
metallic
brilliance 3
}
}
scale 5
rotate -15 * x
}
// End POV code
Jerry Anning
cle### [at] dhol com
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Jerry Anning wrote:
>
> Jerry Anning wrote:
> >
> > Here is the source for the Isosurface golden egg I posted in
> > povray.binaries.images. This uses the Isosurface patch (in this case,
> > in the SuperPatch). The "5" and "6" could be made variable and the
> > shape could easily be recast as a macro or as 3.02 isosurface code.
................
Whooooow,
a VFAQ should have got its very satisfying answer now, finally.
ReVerSi
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