Le 17-10-27 à 21:03, Bald Eagle a écrit :
> I was trying to create a cylindrical pigment pattern with a color map, and use
> that inside of a hexagon pigment pattern.
> 
> Does the center of the cylindrical pattern not start at the center of each
> hexagon?
> This seems like odd and unexpected behaviour to me.
> 
> But it's late and it was a long day, so maybe I'm botching something that's
> otherwise simple.
> 
> 
> 
> #version 3.71;
> 
> global_settings {
>   assumed_gamma 1.0
> }
> 
> #declare Aspect = image_width/image_height;
> camera {
>   location <0, 5, -5>
>   right x*Aspect
>   look_at <0, 0, 0>
> }
> 
> #include "colors.inc"
> 
> light_source {<0, 50, 0> 1}
> 
> #declare Hole =
> pigment {
>    cylindrical
>    color_map {
>                 [0.0 White]
>                 [0.5 White]
>                 [0.5 Black]
>                 [1.0 Black]
>    }
> }
> 
> plane {y, 0
>   pigment {
>    hexagon
>    pigment {Hole},
>    pigment {Hole},
>    pigment {Hole}
>   }
> }
> 
> 
> 
> 

That pattern is centered arount the Y axis. So, if you want it somewhere 
else, you need to translate it accordingly.
In your case, some judicious and creative use of warp repeat, with some 
offset, may be more indicated.

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