The rtwizard tool assists in the creation of images from BRL-CAD databases. The design philosophy behind the rtwizard is to provide you, the user, with a choice of several image types. Once the selection is made, you need only configure a minimum of options before a picture can be made. The user is then free to tweak options and generate new images.
If rtwizard is started without specifying a BRL-CAD database on the command line, you are first presented with the database selection page. Use the file browser on the page to find the desired BRL-CAD database. Once you have selected the desired file, the wizard interface provide options for rendering a variety of image types of specified geometry.