Marc Jacquier <jac### [at] wanadoofr> wrote:
> > > or fill them with media)?

> >   No.
> >
> May be.... but!

  Ah, I didn't notice that "media" part in the original question.

  The "solidness" of an object (which in the case of meshes is achieved
with interior_vector) is needed *only* for CSG, nothing else.
  Not even media, which is "inside" the object requires for the object
to be "solid". Media works just ok for any closed surface regardless of
whether it is "solid" or not.

  Many people have the misconception that interior_vector is needed
for media to work with meshes. Perhaps I should write an entry to
the povQ&T about this.

-- 
#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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