CreeD wrote:
> 
> Hi,
>  I see that POV has a basic triangle built in shape, but I'm looking to do
> some CSG involving a large triangular shape.  What I'm eventually looking
> for is a prism on the xz plane with 6 points.  It's shaped like an
> equilateral triangle with the 3 points clipped off.  In other words, viewed
> from above it's a hexagon with 3 long sides and 3 short ones.  The short
> sides should equal exactly 1/3rd of the long ones.  Can someone give me the
> gist of how to come up with some exact coordinates for such a shape (or,
> ideally, post the code?)

Here's a third way:

prism {
   linear_spline
   0, 1, 6
   <-1.0392, -1.0000>, < 1.0392, -1.0000>, < 1.3856, -0.4000>,
   <0.3464, 1.4>, <-0.3464, 1.4>, <-1.3856, -0.4000>
   texture { pigment { Blue } } 
}

Got enough? :-)

/Ib

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