# Tetrahedron (GHS3D) meshing algorithm

This algorithm is used for meshing of 3D entities of geometrical objects - volume objects. While NETGEN generates 3D elements having a volume less than the one specified by hypothesis, GHS3D does not need any hypotheses, all it needs is a surface mesh built in advance

To apply the Tetrahedron GHS3D meshing algorithm:

From the Hypotheses menu select Create Algorithms > Tetrahedron (GHS3D) and click Create.