You can create most geometric primitives from your keyboard using the Keyboard Entry rollout. In a single operation, you define both the initial size of an object and its three-dimensional position. 3ds Max automatically assigns the object's name and color. See .
This method is generally the same for all primitives; differences occur in the type and number of parameters. The Hedra primitive, a complex and highly visual family of objects, is unsuited to this method and has no keyboard entry.
Once created, a new primitive is unaffected by the numeric fields in the Keyboard Entry rollout. You can adjust parameter values on the Parameters rollout, either immediately after creation or on the Modify panel.
The Keyboard Entry rollout contains a common set of position fields, labeled X, Y, and Z. The numbers you enter are offsets along the axes of the active construction plane; either the home grid or a grid object. Plus and minus values correspond to positive and negative directions for these axes. Defaults=0,0,0; the center of the active grid.
|Box||Length, Width, Height||Center of base|
|Cone||Radius 1, Radius 2, Height||Center of base|
|Cylinder||Radius, Height||Center of base|
|Tube||Radius 1, Radius 2, Height||Center of base|
|Torus||Radius 1, Radius 2||Center|
|Pyramid||Width, Depth, Height||Center of base|
|Teapot||Radius||Center of base|