Modeling is the task of creating the objects that you will animate and render. This section provides an overview of the process as well as a couple of the concepts you will encounter when modeling in Softimage.
After you have an initial object, you can modify it. For each modification, an operator is added to the object's operator stack. Deformation operators change the shape of the object by moving points in space, while topology operators add or remove components like points, edges, and polygons.
Many operations require that you specify one or more elements as inputs. For example, to create a Loft surface you need to specify a series of profile curves. The action of specifying inputs is called picking.
Some operations require that the inputs be picked in a specific order. For example, to revolve a curve around another curve, you must first pick the curve to be revolved and then pick the curve to revolve around.
You can select multiple objects for many operations. For example, you can select several surfaces and apply a Twist deformation. Each surface gets its own Twist operator, but they can all be controlled from the same Twist property editor — the title bar says "multi" to indicate a multiple selection.
Note that you can't do this with operators that have multiple inputs because it is ambiguous which inputs should be used for which operator. For example, Loft allows you to specify multiple curves for the profiles — you can't create two loft surfaces at the same time because it is not clear which curves should be used for each surface.