One entry per face with its triangulation.
One entry per edge with the points that trace it.
The points of the shape's standalone vertices.
OptionalcolorWhich faces carry which color, keyed by #rrggbbaa; present only for meshes made from an
assembly document.
OptionalisoThe faces' iso curves as polylines, face by face with u curves before v curves. Present only when asked for.
The triangulated mesh of a shape the way the drawing code takes it: the faces' numbers in typed arrays that share their buffers, and the edges and vertices as a
DecomposedMeshDtoholds them.