Abstract: The present invention includes a novel way of specifying the possible configurations of a product and representing this compactly using offset transforms. The offset transforms make it possible to save just the basic 3D geometry and representing all the configuration options using offset transforms. This results in a significantly more compact representation as compared with a full representation of the various configurations. This means that a product with thousands of configuration options including animations can be represented using a compact file format where only the base 3D data is represented along with offset transforms to represent the various configuration options. This further makes it possible to easily transmit full configurations of a product and enables a viewer to view the configuration options by applying offset transforms to the original 3D model.