Abstract: A computer-implemented method and interface provides visualization for a volume and/or a change in a volume of a virtual object, the representation usable in a user interface, comprising a first representation of the virtual object represented by a surface positioned in a three-dimensional (3D) virtual space, a bounding object input that defines a bounding object relative to the 3D virtual space, a plurality of local volumes of the virtual object, wherein a local volume of the plurality of local volumes is computed for geometry based on a bounding object feature associated with the bounding object and based on at least some vertices of the corresponding face, wherein at least some of the plurality of local volumes are aggregated to determine a global volume for the set of polygonal faces, and providing for display of a first visual indicator representing a value of the global volume.