Viewers One further form of inspection is provided by Oorange which deserves mention. Point sets can be either 3 or 4 dimensional, of float or double type. There are classes for cameras, lights, appearances, materials, fog, textures, drawables, bounds, pick actions, and transforms. Every viewer must contain a scene, which is the root of a scene graph describing the scene.
Scenes contain a drawable, a camera, a device, and several stacks.
There are a variety of shape related classes. The base class is shape group, which has a list of children. Shape kits have additionally a transform, an appearance, a material, a texture, and a texture transform. Shape instances have a list of transforms. There is a wild card tool which distributes the current pick information to the scene graph.