Tom Melly <tom### [at] tomandlucouk> wrote:
> They could be bound by the object{A} bounding box, rather than the bounding box
> of the union of A and B?

  True, but as far as I know, for some reason POV-Ray does not do this.
I don't know why.

-- 
#macro M(A,N,D,L)plane{-z,-9pigment{mandel L*9translate N color_map{[0rgb x]
[1rgb 9]}scale<D,D*3D>*1e3}rotate y*A*8}#end M(-3<1.206434.28623>70,7)M(
-1<.7438.1795>1,20)M(1<.77595.13699>30,20)M(3<.75923.07145>80,99)// - Warp -

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> In the case of the intersection, you could also switch to the bounding box of B
> if that was smaller than A's.

The intersection of the participating bounding boxes suffices.


-- 
merge{#local i=-11;#while(i<11)#local
i=i+.1;sphere{<i*(i*i*(.05-i*i*(4e-7*i*i+3e-4))-3)10*sin(i)30>.5}#end
pigment{rgbt 1}interior{media{emission x}}hollow}//  Mark Weyer

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