anchor: Mesh:getVertexFormat
  Gets the vertex format that the Mesh was created with.
  format = Mesh:getVertexFormat()
  format table The vertex format of the Mesh, which is a table containing tables for each vertex attribute the Mesh was created with, in the form of {attribute, ...}.
  format.attribute table A table containing the attribute's name, it's data type, and the number of components in the attribute, in the form of {name, datatype, components}.
  format.... table Additional vertex attributes in the Mesh.