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Simple test scene showing the possible bug.
/* BEGIN TEST of spherical media method 3 spotlight artifact */
// background {rgb 0.5}
// or sky
sky_sphere {
pigment {
gradient z
color_map {
[0 color rgb <1,0,0>]
[1 color rgb <0,1,0>]
}
}
}
light_source {
-10*z, color rgb 1
spotlight radius 9 falloff 12 point_at z
rotate <30,30,0>
}
camera {
location -15*z
look_at 0
}
media {
// method 3
// intervals 10
// samples 25
scattering { 2, rgb 1 extinction 1 }
density {
spherical
color_map {
[0.0 rgb 0]
[0.5 rgb 0.05]
[1.0 rgb 0.1]
}
scale 5
}
}
sphere {0,1 pigment {rgb <1,1,0>}}
/* END TEST */
This would seem to affect only situations where all the following things are
used: spotlight, global and spherical patterned media, media type 3
(default), sky_sphere or background.
If anyone would like to confirm this I'll go ahead with sending it in as a
found bug. Or, if it is already known by anyone as being a current bug I'd
appreciate hearing that too.
--
Bob H.
http://www.3digitaleyes.com
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