Intelligent multi-shot 3D visualization interfaces

In next-generation virtual 3D simulation, training, and entertainment envir onments, :intelligent visualization interfaces must respond to user-specifi ed viewing requests so users can follow salient points of the action and mo nitor the relative locations of objects. Users should be able to indicate w hich object(s) to view, how each should be viewed, what cinematic style and pace to employ, and how to respond when a single satisfactory view is not possible. When constraints fail, weak constraints can be relaxed or multi-s hot solutions can be displayed in sequence or as composite shots with simul taneous viewports. To address these issues, we have developed CONSTRAINTCAM , a real-time camera visualization interface for dynamic 3D worlds. (C) 199 9 Elsevier Science B.V. All rights reserved.