Vertices are selected within a box that you can move into space.
                  
                
                
                Parameters
                
                  - 
                    Size (3D Size in Meters) :   Size of the box
                  
- 
                    Placement (3D Placement) :   Placement of the box
                  
- 
                    Exponent (Positive floating point number) :   Exponent of the box
                  
- 
                    Roudness (Percentage) :   Roundness of the box