"Jeff Reifel" <jef### [at] gmailcom> wrote:
> "LanuHum" <Lan### [at] yandexru> wrote:
> > Hi! I am interested in the question: is it possible to create a thread without a
> > mesh of triangles? We need a smooth surface of the thread in the picture
> > 38400x21600 (4K * 10)
>
>
> Here is a simple idea.
> #declare i=0;
> #while(i<18 )
> cone{0,.5,y*-.5,0 translate < .4,-2>  rotate y*360*i translate -y*i*.5
> pigment{blue 1}}
>  cone{0,.5,y*.5,0 translate <.4,-2>  rotate y*360*i translate -y*i*.5
> pigment{red 1}}
> #declare step=.01 ;
> #declare i=i+step;
> #end   translate <0,9,0>}

Thanks, it's a good idea, but for a big picture you need to increase the number
of steps many times. Otherwise, defects are visible :(

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