If no such refinement was ever attached, or if a NULL refinement was attached, this function will return (LtMeshingRefinement)NULL. In the event of an error, a NULL refinement will be returned.

This routine reads the LI_PROP_PRIM_MESHING_REFINEMENT primitive property, whose type is an LtMeshingRefinement .

/*
 * Tweak the meshing refinement 
 * attached to the floor geometry
 */
floor_ref = LiPrimitiveGetMeshingRefinement(floor);
if ( floor_ref )
{
   LiMeshingRefinementGetCriterion(floor_ref, 
                                   LI_MESH_CRIT_MAX_EDGE_LENGTH, 
                                   data);
   max_edge_len = LiDataGetFloat(data);
   max_edge_len *= (LtFloat)1.1;
   LiDataSetFloat(data, max_edge_len);
   LiMeshingRefinementSetCriterion(floor_ref, 
                                   LI_MESH_CRIT_MAX_EDGE_LENGTH, 
                                   data);
}