Redbeard wrote:
> 
> I'm working on a US Flag texture.  I've been able to get 48 stars using a repeat
> warp and a macro Chris Colefax offered some time back for a star texture
> (sorry... can't find the post).
> 
> Any ideas on how to get the 50 stars in the 5 6's, 4 5's pattern?  I've included
> my repeat statement for reference.
> 
> Stars should look like:
> *     *     *     *     *     *
>    *     *     *     *     *
> *     *     *     *     *     *
>    *     *     *     *     *
> *     *     *     *     *     *
>    *     *     *     *     *
> *     *     *     *     *     *
>    *     *     *     *     *
> *     *     *     *     *     *
> 
> Repeat warp currently used:
> #declare OldGloryBlue = rgb <0,40,104> / 255;
> #declare P_USAStars =
> pigment
> {
>     star_pigment(5, 40, pigment_map
>     {
>         [0 OldGloryBlue]
>         [0.00001 White]
>     })
> 
>     translate <1,1,0>
>     warp { repeat x * 3 }
>     warp { repeat y * 2.75 }
>     scale StarDia / 2
>     translate 6 * Stripe * y + <0.5,0.4,0> * StarDia
> }
> 
> This isn't terribly accurate, but it works.  For 48 stars.  And I need 50 :-)

You want to try an offset in the second warp:
  warp { repeat y*2.75 offset <1.5,0,0> }

Note that the x offset is half the value of the first repeat warp

Josh English
eng### [at] spiritonecom

Post a reply to this message