Mike Williams <nos### [at] econymdemoncouk> wrote:
> It looks like the sides of the characters are inside out. If we paint a
> text with a red texture and a green interior_texture we can see that the
> sides are interior and the faces are exterior.

  That sounds like a genuine bug.

  Normally the direction of the normal vectors don't matter because POV-Ray
flips them as necessary. It's only with features which rely on the direction
of the normal vector, such as interior_texture and trace(), where the
difference can be seen. Such features were added long after the text object
was added to POV-Ray and thus it's logical that such "bug" was never caught
(because it never affected rendering in versions previous to 3.5).

  I wonder if there are other primitives with inverted normal bugs...
Perhaps someone should check. :)

-- 
plane{-x+y,-1pigment{bozo color_map{[0rgb x][1rgb x+y]}turbulence 1}}
sphere{0,2pigment{rgbt 1}interior{media{emission 1density{spherical
density_map{[0rgb 0][.5rgb<1,.5>][1rgb 1]}turbulence.9}}}scale
<1,1,3>hollow}text{ttf"timrom""Warp".1,0translate<-1,-.1,2>}//  - Warp -

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