Implementing the IBar Camera Widget
Karan S. Singh, Cindy M. Grimm · Journal of Graphics Tools · 2005
We present the implementation of a new widget, the IBar, for controlling all aspects of a perspective camera. This widget provides an intuitive interface for controlling the perspective distortion in the scene by providing single handles that manipulate one or more projection parameters simultaneously (e.g., distanceto- object and lens aperture) in order to create a single perceived projection change (increasing the perspective distortion without changing the scene size).