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"daishi" <das### [at] x-press net> wrote in message
news:8F5EDB907dashixpressnet@204.213.191.228...
| can anyone point me to a URL or anything for making a volumetric textures
| in pov? I'm thinking white energy beams or something....I can make the 2d
| texture without a problem, but it doesn't have any depth to it...
|
| do I need to use media to do this? (any pointers if this is the case?)
|
| if its media wouldn't that put the render time through the roof....maybe I
| should consider not doing this?
If you have, or get, MegaPov ( www.nathan.kopp.com/patched.htm ) then it's not
so very slow to use media. I think that media is your only option since
objects tend to always show their edges. Well, now that I think about it a
dense white fog inside a bunch of cones might look reasonable, just nothing
like media would look.
Example:
// BEGIN
global_settings {
max_trace_level 10
}
light_source { 0 color rgb 1}
camera {
location <5,5,-15>
angle 30
look_at <0,0,0>
}
sphere {0,1 hollow
pigment {gradient y color_map {
[0 color rgb <.5,.25,.125>]
[1 color rgb <.125,.25,.5>]
}}
finish {ambient 1}
scale 100
}
fog {
fog_type 1
distance 1
color rgb 1
}
merge {
#declare N=10;
#declare sNx=seed(1234);
#declare sNy=seed(4321);
#declare sNz=seed(2341);
#while (N>0)
#declare rNx=rand(sNx);
#declare rNy=rand(sNy);
#declare rNz=rand(sNz);
cone {0,.1,y,.5
pigment {rgbf 1}
scale <1,5,1> rotate <rNx,rNy,rNz>*360
}
#declare N=N-1;
#end
no_shadow inverse
}
// END
Not very useful as beams of light really.
Bob
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