In the real world a Triangle has 3 sides and a Quadrangle 4. (even with my limited brain capacity I know this to be true :/ )
In the polygon world this has come into question. If you have a triangle shaped polygon surrounded by other polygons and there is an edge/vertex terminating in the middle of one of the triangle edges, is the triangle really a quadrangle with two edges that are just 180° apart. If you move that vertex even a fraction the polygon becomes a quadrangle.
I have attached a jpg to illustrate.
This question comes into play when using hypernurbs. We always want to avoid triangles AND we don’t want an edge that terminates in the middle of another edge, potentially creating an N-Gon.
The real question is “how does C4D look at this triangle with 4 vertices? Is it a triangle or a quadrangle?
I hope that wasn’t too confusing.
Thanks
TAK