A VertexPrim specifies a range of vertices in Meta_VertexAttrib siblings to render from, requiring this data to be in primitive order (and possibly duplicated)
See Meta_IndexPrim for a list of supported prim type names.
bool - When enabled, this primitive is drawn by the mesh
string - Primitive type
int - The number of primitives to draw from the array
int - The index of the vertex to start drawing from