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Sounds like another filter/transmit, fog/atmosphere problem. All I can do is
show you a test-file which may show similar thing even though it is using
halo.
//BEGIN TEST FILE
camera
{
location <0.0 , 3.0 ,-8.0>
angle 33
look_at <0.0 , 3.0 , 0.0>
}
#declare TestHalo = sphere { 0, 2
// pigment { color rgbft <1, 1, 1, 1.125, 0> } // type A equalization: no
b.g., fog t=.5
pigment { color rgbft <1, 1, 1, 1.2, .125> } // type B equalization: b.g.
or not, fog t=0
// pigment { color rgbft <1, 1, 1, 1, (1/3)> } // type C equalization: b.g.
or not, fog t=0
halo {
emitting
spherical_mapping
linear
color_map {
[ 0 color rgbt <1, 0, 0, 1> ]
[ 1 color rgbt <1, 1, 0, 0> ]
}
samples 10
scale 2
}
hollow
no_shadow
}
// transmit .5 (only, no b.g.) for type A,
// 0 (.5 only with b.g.) for type B,
// 0 (.5 only with b.g.) for type C
fog {
distance 50
colour rgbft<.5, .5, .5, .5, .5>
fog_type 2
fog_offset 3
fog_alt .25
}
light_source
{
0*x
color red 1.0 green 1.0 blue 1.0
looks_like{ object {TestHalo}}
translate <0, 2.5, 4>
}
// comment out below to see without b.g. objects
///*
plane {z,10 pigment {rgb <.33,.66,.99>} hollow} // a background object messes
it up again
plane {y,0 pigment {rgb <.99,.33,.99>} hollow} // a background object messes
it up again
cone {-3*y,1,3*y,0 pigment {rgb<0,1,0>} translate <0,3,6> no_shadow}
//*/
//END OF TEST FILE
Message <01bdea3b$c8ad1bc0$6b43a8c2@wphnvffu>, Mick Hazelgrove typed...
>
>Help
>
>I've being trying to put an image map of an insects wing in a scene with
>fog
>
>Where the box on which the image map is projected meets the fog it shows up
>and the background shows through the fog
>
>Does anyone know how to get round this - I've tried upping Max_Trace level
>but it has know effect.
>
>Hope someone knows the answer to this one
>
>Mick Hazelgrove
--
omniVERSE: beyond the universe
http://members.aol.com/inversez/POVring.html
=Bob
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