   ConvertAdjacencyToPointReps
  Does anyone know what "point representative data" is? I''ve searched everywhere! What do the functions ConvertAdjacencyToPointReps and ConvertPointRepsToAdjacency do?  
  Does nobody know? Somebody has to know.  ;  i find it at http://www.xmission.com/~legalize/book/archive/usenet.cgi?14110=============>  What is the point representative data? Is it vertex index?Yes.================;  Yes, it is an array of vertex indices.  If you think of two adjacent triangles which share an edge.  Lets say triangle ABC and DEF share an edge BC/DE like:---CD-----/||\---A-||-F---\||/-----BE---  (the ''-''s are just for spacing)Vertices: ABCDEFAdjacency: -1-0--Vertices B and E are co-located (since we know the edge are shared), but may have different vertex indices, since they might have different normals, texture coordinates, colors, etc..  Vertices C and D are co-located too.When you convert to point-reps, a single vertex index will be used to represent these co-located vertex.  For example, if you created point reps for the triangles above, it would probably look like:Vertices: ABCDEFPoint-reps: 012215Note that B and E are both given the value 1.  The fact that they share a value indicates that they are co-located.  Since 1 is the index of B, B is called the point-representative of B and E.The same is true of C and D.  In this example, C is the point-representative of C and D.  It is not really important that C was picked instead of D to be the representative.  Either would work just as well.Hope this all makes some sense.xyzzy