hydra> help v3d_
No help on 'v3d_' is available

Found 30 function matches in namespace Global:
v3d_2dto3d                 v3d_cone                   v3d_cube
v3d_cyl_azlup              v3d_cylinder               v3d_doppler_points
v3d_evtimg                 v3d_f_generic              v3d_help
v3d_histxy                 v3d_list                   v3d_max_box
v3d_mc_cells               v3d_mc_points              v3d_merge_max
v3d_project                v3d_r3dsq                  v3d_reproject
v3d_roche                  v3d_setup                  v3d_smooth_2d
v3d_smooth_box             v3d_soft_cutoff            v3d_sphere
v3d_sphere_line            v3d_sphere_ring            v3d_sphere_rlup
v3d_spheroid               v3d_torus                  v3d_view

Found 7 variable matches in namespace Global:
V3D_HARD_CUTOFF            v3d_cube_radius            v3d_na
v3d_user_unit              v3d_va                     v3d_version_date
v3d_version_str            
hydra>