One embodiment of the invention sets forth a graphics application configured to generate previews of a graphics object when a configurable parameter is modified. A computation engine computes the result of the modified parameter value and determines a set of additional parameter values based on configurable meta-data. The computation engine then computes results of each additional parameter value. Each computed result specifies a different change in the characteristic of the graphics object. The computation engine transmits the computed results to a preview generator, also included in the graphics application. For each computed result, the preview generator generates a preview of the graphics object that incorporates the change in the characteristic of the graphics object. The previews are transmitted to a preview pane for display. The user may then select one of the previews, and the parameter value of the configurable parameter is modified based on the selected preview.