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Le_Forgeron <jgr### [at] free fr> wrote:
> Le 03/06/2018 à 05:24, Hedrondude a écrit :
> > I'm using POV-Ray to render cross sections of four and five dimensional uniform
> > polytopes - especially star polytopes. These renders can be seen on my website
> > http://www.polyope.htm/hedrondude/polychora.htm I use the polygon keyword quite
> > a bit, but it only renders with the binary filling (all odd density regions gets
> > filled in, even density are left as holes) which forces me to manually fill in
> > all the non-0 even density regions. This isn't too bad for simple polytopes,
> > but with more complex ones, this gets very tedious. Is it possible to render
> > polygons with density filling (all non-0 density regions gets filled in - i.e.
> > filled in by the 'winding method') or better yet could this be a feature for
> > POV-Ray 3.8 where there is a density filling option for the polygon keyword. I
> > would suggest something like this:
> >
> > #local obj=polygon {45,v1,v2,v3,......,v44,v1 density}
> >
> >
>
> I did an experimentation on
> https://github.com/LeForgeron/povray/tree/extension/winding-polyline
>
> #declare A=<0,3,0>;
> #declare B=<6,3,0>;
> #declare C=<4.5,1,0>;
> #declare D=<7,2,0>;
> #declare E=<4.5,6,0>;
> #declare F=<7,4,0>;
> #declare G=<2,4,0>;
> #declare H=<4,6,0>;
> #declare I=<4,0,0>;
> #declare J=<5,0,0>;
> #declare K=<5,8,0>;
> polyline
> {
> A, B, C, D,
> E, F, G, H,
> I, J, K, A
> range { <1,2> }
> texture { pigment { color srgb 0.5 }}
> }
Excuse the late reply, I haven't been on the forum in a while.
The experiment looks right. Is there a way to add this code to POV-Ray before
the next update?
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