3D ORMTs
ORMT_3D_SPHERE
- 3D sphere with designated directional axis and xz-plane
ORMT_3D_OBLATE_ELLIPSOID
- 3D oblate ellipsoid with designated minor axis direction and xz-plane
ORMT_3D_PROLATE_ELLIPSOID
- 3D prolate ellipsoid with designated major axis direction and xz-plane
ORMT_3D_BI_AXIS_ORIGIN
- x- and y-axes determined by directed perpendicular lines passing through the origin
ORMT_3D_TRI_PLANE
- Origin determined by the intersection of three planes