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Thanks for your suggestions, but the spherical item doesn't seem to make the dust
more
realistic. I've posted a very little and poor quality image (in binaries.image
title:"My dust is very bad") to show what I have by now.
Maybe someone can help me regarding to this example.
David
> I thought maybe someone would have responded to your asking for help by now.
> I can say, try a 'spherical' density instead of a gradient one but I don't
> know what the end product is supposed to look like. All I could tell is the
> torus grows wider along the ground plane.
> I expected it to be more like a fireball in the air.
> Anyway, spherical is one possibility, perhaps scaled smaller in the y than in
> the x an z (scale <1,0.5,1>). And speaking of scale, when media is scaled up
> it intensifies the effect of the media used, scaled down it de-intensifies.
> So, try and setup the media into the object first and then adjust the density
> color values up or down.
> Another way is to use 'scattering' as well and adjust it (it can use a color
> vector too).
> There's my hints.
>
> Message <36679D03.F2CACD3A@imerir.asso.fr>, gemelli david typed...
> >
> >Hi,
> >I am currently doing a scene where an atomic bomb is exploding on a
> >futuristic battlefield.
> >I have made a dust wave using a torus and media but the result isn't
> >very good.
> >What media feature can I use to make realistic dust (it must be a
> >colored dust).
> >Is it possible to make a gradient from the center of the torus donut (is
> >that the expression ?)
> >to its surface ?
> > Thanks.
> > David.
> >This is the what I am currently using:
> >
> >#local Dust_Media_1 =
> >media {
> > absorption 0.3
> > intervals 20
> > density {
> > gradient y
> > turbulence 0.2
> > color_map {
> > [0 color rgb<0.7,0.7,0.9>]
> > [0.6 color rgb<0.5,0.6,0.8>]
> > [0.98 color rgb<0,0,0>]
> > [1 color rgb<0,0,0>]
> > }
> > }
> >}
> >
> >#local Dust_Media_2 =
> >media {
> > emission 0.08
> > intervals 20
> > density {
> > gradient y
> > turbulence 0.2
> > color_map {
> > [0 color rgb<0.456863,0.319608,0.037255>]
> > [0.9 color rgb<0.556863,0.419608,0.137255>]
> > [0.95 color rgb<0,0,0>]
> > [1 color rgb<0,0,0>]
> > }
> > }
> >}
> >
> >torus {
> > (40 * CLOCK_DUST) + 1
> > 1.8
> > pigment {rgbt <1,1,1,1>}
> > interior {
> > media {
> > Dust_Media_1
> > scale <2,2,2>
> > }
> > media {
> > Dust_Media_2
> > scale <2,2,2>
> > }
> > }
> > scale <2, 2, 2>
> > translate <0,(20*(1/256)*100)-(4*ALTITUDE_DUST),0>
> > hollow
> >}
> >
>
> --
> omniVERSE: beyond the universe
> http://members.aol.com/inversez/POVring.html
> =Bob
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