View Full Version : How many triangles, edges per n vertices

02-11-2002, 10:58 PM

I was wondering if anybody can tell me how many triangles and edges correspond to
n vertices in a mesh. I think i saw a formula somewhere but i just don't remember.


02-13-2002, 12:46 AM
You can't calculate that. Depending on what the model looks like, there will be different amount of edges and triangles for the same number of vertices.

02-13-2002, 08:47 AM
Bob is right. It all depends on your object.

Take a 3 sided pyrimid. It has 4 vertices... 3 for the base and 1 at the top. But is composed of only 4 triangles and 6 edges.

Now take the same 3 sided pyrimid and you do not want to have a face for the base. In other words it has all three sides but no bottom.
The pyrimid still has 4 vertices and 6 edges. However it now only has 3 triangles instead of 4.

Hope this helps explain why it is impossible.