On 7/12/2024 1:53 AM, kurtz le pirate wrote:
> 
> Hello,
> 
> I'm now looking at splines and trying to understand how POVRay treats
> this object.
> 

Your understanding is correct. Here's an example with:
a) simpler coordinates
b) an array for tracking the indices.

It ain't pretty, but it works.

The points 0, 3, 6, and 9 are points on the curve.

Point 0 has control points 11 and 1
Point 3 has control points 2 and 4
Point 6 has control points 5 and 7
Point 9 has control points 8 and 10

Josh

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