mesh, mesh quad, mesh triangle

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Permalink Reply by David Rutten on March 25, 2013 at 1:26pm

A mesh face is a list of 4 integers. If the last two integers are identical, the face represents a triangle, if they are different, the face represents a quad.

The numbers refer to vertex indices. Say you have a mesh with 100 vertices (points). The first one is at index 0, the second one at index 1, then 2, 3 etc. all the way to 99. A face might connect vertices 0, 1, 22 and 23.

You typically don't use this kind of low level method to create a mesh, though of course there's nothing stopping you. Most meshes are either the result of some operation on existing meshes, the approximate mesh of a surface/brep or based on one of the mesh primitives such as Plane, Box or Sphere.

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David Rutten

david@mcneel.com

Poprad, Slovakia