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Hi,
I'm playing around with radiosity and media.
This is a test render for a component of a
scene I'm working on.
I'm not assuming this is a bug, just my total lack of
knowlege about radiosity :-)
I have
radiosity {
Rad_Settings(Radiosity_Normal, true, true)
}
And the spheroids are marked hollow, filled with
#declare M_FruitB = material {
interior {
ior 1.473 // glycerine
media {
emission 0.4
scattering { 1, 0.3 extinction 0 }
absorption 0.7
density {
bozo
scale 0.2
turbulence 0.1
#local Density = 3;
density_map {
[0.00 rgb<1, 1, 1> * Density]
[0.49 rgb<1, 1, 1> * Density]
[0.51 rgb<0, 0, 0> * Density]
[0.98 rgb<0, 0, 0> * Density]
[1.00 rgb<1, 1, 1> * Density]
}
}
}
}
texture {
pigment { rgbt<0, 1, 0, 0.6> }
normal { bozo 1.2 turbulence 0.2 scale 0.05 }
finish {
specular 1
roughness 0.0001
reflection {
0.18
fresnel on
}
}
}
}
(The dark centers are just elongated black spheres)
There's no light source, just a
sphere {
0, 300000
hollow
texture {
pigment { White }
finish {
ambient 1
diffuse 0
}
}
}
So, how come the spheroids (sphere sweeps in fact)
seem to be focusing the light in random ways?
Or are they radiosity samples that aren't quite
right?
Any help greatly appreciated.
--
Bill Hails
http://thyme.homelinux.net/
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Bill Hails wrote:
> Hi,
> I'm playing around with radiosity and media.
> This is a test render for a component of a
> scene I'm working on.
>
> I'm not assuming this is a bug, just my total lack of
> knowlege about radiosity :-)
>
> I have
> radiosity {
> Rad_Settings(Radiosity_Normal, true, true)
> }
Well - these settings are not very suited for a very difficult situation
for radiosity like this. It would probably help to start more simple,
no normal, constant media, no ior.
Note you will have to use a high enough max_trace_level as well. A more
difficult (but quite useful) approach is to use a no-media,
no-reflection and no-ior variant of the objects for radiosity. This can
be done with the no_radiosity flag in MegaPOV.
Christoph
--
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 27 Feb. 2005 _____./\/^>_*_<^\/\.______
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