Christopher James Huff <chr### [at] maccom> wrote:
:> * You have used the quadric, cubic, quartic or poly primitives.

: Nope, I stick to isosurfaces. That count? I think it should...

  No, it doesn't count.
  The idea behind that question is that using polys is more challenging
and requires a bit more mathematical knowledge.
  Anyone can make a torus-shaped isosurface knowing the torus function.
However, try to convert that function to polynomial form and construct the
equivalent quartic. That's a bit more challenging math.
  (I know. I have even made a webpage about the issue.)

-- 
#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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