Reference Cinema 4D Basic Features Create Menu Deformer object
Function available in CINEMA 4D Prime, Visualize, Broadcast, Studio & BodyPaint 3D

Bulge Object

Basic Coord. Object Falloff

Bulge Object

This deformer makes an object bulge or contract. Drag the orange handle on the deformer’s top surface to control the bulge interactively in the viewport.

Cube with 5x5x5 segments.
The same cube with a bulge deformation.