Shouldn't that union be a merge? In a *real* motion blur, you wouldn't see
much of the object surfaces anyway..

--

//Mahalis
camera{location<0,0.25,-2> look_at 0.5*y} #declare T=texture{pigment{crackle
scale 0.5 rotate 90 turbulence 0.75 color_map{[0 rgb 1][0.05 rgb 1][0.1
rgb<1,0.25,1>][0.25 rgbf 1][1 rgbf 1]}} finish{ambient 1}} #declare
c=difference{torus{0.5,0.1 rotate -90*x}box{<0.7,0,0.2>,<-0.7,-0.7,-0.2>}}
merge{object{c translate<0.5,0.5,0>} object{c translate<-0.5,0.5,0>}
cylinder{<1,0.5,0>,<1,0,0>,0.1} cylinder{<-1,0.5,0>,<-1,0,0>,0.1}
cylinder{0.5*y,0,0.1} texture{T}}
--


"Gilles Tran" <tra### [at] inapginrafr> wrote in message
news:3be30258$1@news.povray.org...

>
> > I tried it. I'm not sure how high was my max_trace_level but space
> > between single copies was very dark. Maybe problem was I used for them
> > union and/or merge. I will try it and on Monday send to you result to
> > compare with MegaPov's picture. Thank you very much
>
> Here a small example (image below) :
>
> #global_settings{max_trace_level 41}
> background{rgb 1}
> light_source {-z*10000 1 rotate x*25 rotate y*30}
> #declare Propeller=sphere{0,0.5 translate y*0.5
>  texture{
>   pigment{
>    gradient y
>    poly_wave 0.5
>    color_map{
>     [0 rgbf <1,1,1,0.94>][0.95 rgbf <1,1,1,1>][1 rgbf <1,1,0.9,1>]
>    }
>   }
>   finish{ambient 0 diffuse 0}
>  }
>  scale <0.5,5,0.1>
>  rotate -y*15
> }
> #declare i=0;
> #declare nc = 20; // number of copies
> #declare maxr=30; // max angle of rotation
> union{
>     #while (i<nc)
>         object{Propeller rotate z*maxr*((i/nc))}
>         object{Propeller rotate z*i*maxr/nc rotate z*120}
>         object{Propeller rotate z*i*maxr/nc rotate z*240}
>         #declare i=i+1;
>     #end
>     difference{
>      sphere{0,1}
>      plane{z,0 inverse}
>      texture{
>       pigment{spiral1 1 color_map{[0.3 rgb 1][0.3 rgb 0]} scale <1,1,0.8>}
>       finish{ambient 0 diffuse 1}
>      }
>       scale <0.8,0.8,1.5>
>       translate z*0.3
>     }
>     rotate y*45
>     translate z*10
> }
>
> G.
> --
>
> **********************
> http://www.oyonale.com
> **********************
> - Graphic experiments
> - POV-Ray and Poser computer images
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>
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>

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