Anyone have a suggestion for creating a realistic dust devil (those small
tornados that blow around trash and leaves in alleyways)?

I made a very good shape in sPatch but textureing it too look like it has
spinning particals in it has proven to be less than successful.  Here is
what I tried to use.

object{devil
        hollow on
       scale 1.02
       texture {
    pigment { rgbf <0.98, 1.0, 0.99, 0.75> }
    finish {
        ambient 0.1
        diffuse 0.01
        reflection .001
        ior 3
        specular .001
        roughness 9
    }
}normal {waves 0.5 scale 0.01 translate y*-50}}

If you replace devil with a warped cone you can get an idea of the effect I
got.

Any help prior to the 29th (wonder why?) would be appreacieated?

Thanks,
Wil Hale
wil### [at] cal-businesscom
www.cal-business.com/wil

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You'd almost need to go with a loose 'media' (MegaPov has 3 types altogether) because
you'd need to see portions
rotating through the 3D structure.  Oh, but does it have to be animatable, media could
turn out to be slow rendering
(did I even have to say that?).

Bob

"Wil Hale" <whh### [at] nvlarmymil> wrote in message news:38fc5b5d$3@news.povray.org...
| Anyone have a suggestion for creating a realistic dust devil (those small
| tornados that blow around trash and leaves in alleyways)?
|
| I made a very good shape in sPatch but textureing it too look like it has
| spinning particals in it has proven to be less than successful.  Here is
| what I tried to use.
|
| object{devil
|         hollow on
|        scale 1.02
|        texture {
|     pigment { rgbf <0.98, 1.0, 0.99, 0.75> }
|     finish {
|         ambient 0.1
|         diffuse 0.01
|         reflection .001
|         ior 3
|         specular .001
|         roughness 9
|     }
| }normal {waves 0.5 scale 0.01 translate y*-50}}
|
| If you replace devil with a warped cone you can get an idea of the effect I
| got.
|
| Any help prior to the 29th (wonder why?) would be appreacieated?
|
| Thanks,
| Wil Hale
| wil### [at] cal-businesscom
| www.cal-business.com/wil
|
|
|

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Um, I just realized you have a 'ior 3' in that finish statement.  Using POV-Ray 3.0*?

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Using Megapov. I am a creature of habit so things like IOR tend to hang
around.

Scene is not animated but the DD needs to look as though it is.

Thanks

Wil
Bob Hughes <per### [at] aolcom?subject=PoV-News:> wrote in message
news:38fc5fad@news.povray.org...
> Um, I just realized you have a 'ior 3' in that finish statement.  Using
POV-Ray 3.0*?
>
>
>

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I'm posting my idea of a dust-devil (I've seen only one really good one before) over
at povray.text.scene-files.  The
media container could use a nice isosurface but I didn't want to spend the time making
one just now.

Bob

"Wil Hale" <whh### [at] nvlarmymil> wrote in message news:38fc7dc1@news.povray.org...
| Using Megapov. I am a creature of habit so things like IOR tend to hang
| around.
|
| Scene is not animated but the DD needs to look as though it is.
|
| Thanks
|
| Wil
| Bob Hughes <per### [at] aolcom?subject=PoV-News:> wrote in message
| news:38fc5fad@news.povray.org...
| > Um, I just realized you have a 'ior 3' in that finish statement.  Using
| POV-Ray 3.0*?
| >
| >
| >
|
|

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