rgl.bbox                setup Bounding Box decoration
rgl.bg                  setup Background
rgl.light               add light source
rgl.material            generic Appearance setup
rgl.primitive           add primitive set shape
rgl                     3D visualization device system
rgl.clear               scene management
rgl.snapshot            export screenshot
rgl.spheres             add sphere set shape
rgl.sprites             add sprite set shape
rgl.surface             add height-field surface shape
rgl.texts               add text set shape
rgl.viewpoint           setup viewpoint
