The 3D Rendering page has the layout illustrated below.
The 3D scene area to the left shows the current scene, whereas the properties of the visualized objects can be edited on the View panel to the right. The Input panel is mostly used to adjust the coloring of plane images and textures, although it also offers a small segmentation interface. Note the 
toggle button in the taskbar which allows maximizing the visualization area.
The following sections describe how the visualization properties of the SR and VR objects are changed, and how additional objects like image planes and object markers can be added.