I am trying to write an add-in that loads a puts a triangular polygon mesh (aka: GraphicsBody) a visual reference in my assembly project (not solid body, just a collection of triangles).

Ideally, I am looking for an API call that does this:

IBody2 body = modeler.CreateBodyFromPolygonMesh(vertices, indices, ...)

(where vertices a vertices (xyz), and indices are offsets to vertices to define the triangles