Available glyph types (drawing objects) are:

Value Description
arrow Simple arrow
cube A cuboid
ellipsoid An ellipsoid, oriented by face and edge vectors
ellipsoidxyz An ellipsoid, oriented by an explicit set of provided axes
line A line between two points
quad A quad (made up of two triangles)
sphere A sphere or spheroid
svector A sense vector
tetrahedron Regular tetrahedron
text Text rendered at 2D screen coordinates
text3d Text rendered at 3D model coordinates
triangle Regular triangle
tubearrow A fully 3D arrow
vector An arrow centred on a point and pointing along a specified local vector