> Hi, I'm really stumped about this error
>
>      cone
>      {
>          <0,1,0>, 4,<0,1,0>, 0
>          //Texture {Polished_Chrome}
>      }
>
> the yellow line highlights the closing accolade, after //ing the texture line
> (the error first appeared on that line)
>
>      I've swapped the radii of the 2 caps (swapped the 4 and 0), to no avail.
>
>      (Using povray 3.6 for Windows)
>
>

The error message is about a "degenerate" cone or cylinder.
That means that both ends are at the same location. In that case, it 
becomes impossible to know the orientation of the end surfaces.

Also, "Texture" is a user variable while "texture" is a reserved 
keyword. It Texture have not been created in a #declare or #local, you 
get an error for an undeclared variable.

What you must do is to make sure that the end positions are different.
If you realy want a zero length cone or cylinder, you should use the 
disk object:

disk{<0,1,0>, Orientation, 4 [,Hole_Radius]texture{Polished_Chrome}}
"Orientation" is the direction of a line prependicular to the disk's 
surface.


Alain

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