I'm having a problem with a sphere-sweep that looks like the bounding box is 
too small: some of it is not shown. It's not related to the tolerance 
setting or self-shadowing, nor seem it to be a precision problem, as scaling 
it all larger or smaller makes no difference. I also tried to apply my own 
larger bounding_box, but it makes no difference. Any pointers what I can do?

Minimal scene:


#declare FlowerAlignments = array[3]
{1.24*<1,1,1>, <-65,  5,-50>, <8.1,-7.8,30>},

union {
   #declare C = 0;
   #while (C<6)
      sphere_sweep {
         cubic_spline 4,
         <0,-6.0,0.00>, 0.12,
         <0,-0.2,0.07>, 0.05,
         <0, 2.1,0.70>, 0.01,
         <0, 2.5,2.50>, 0.00
         /*bounded_by {box {
            <-0.05,-0.25,0.02>-<1,1,1>,
            <0.05,2.11,0.71>+<1,1,1>
         }}*/ // no difference
         rotate 60*y*C
      }
      #declare C = C+1;
   #end
   pigment {rgb <1.50,0.90,0.00>}
   translate -y
   scale FlowerAlignments[0]
   rotate FlowerAlignments[1]*<0,1,0>
   rotate FlowerAlignments[1]*<1,0,1>
   translate FlowerAlignments[2]
}

camera {
   location -FlowerAlignments[2]
   look_at 0
   angle FlowerAlignments[0].x*5
   translate FlowerAlignments[2]
}

light_source {< 1, 2,-3>*1000, rgb 1.0}
light_source {<-3, 1,-2>*1000, rgb 0.6}
light_source {<-1,-3,-2>*1000, rgb 0.6}


Rune
-- 
http://runevision.com

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