Interactive Fluid Simulation Using Augmented Reality Interface
VMR '09 Proceedings of the 3rd International Conference on Virtual and Mixed Reality: Held as Part of HCI International 2009
Camera control based on rigid body dynamics for virtual environments
VECIMS'09 Proceedings of the 2009 IEEE international conference on Virtual Environments, Human-Computer Interfaces and Measurement Systems
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In 3D computer graphics, it has been an important issue to describe a virtual object realistically and show it in a physically correct manner. Unlike the virtual reality(VR), the augmented reality (AR) is an environment containing virtual and real objects simultaneously. However, the difference in motion between the virtual and real objects is obvious, which makes it hard for AR to be realistic and attractive. To reduce this gap, we propose to apply physical attributes to each virtual object, which can be done by using a physics engine, a software library containing functions related with physics. For this purpose, an ODE (Open Dynamics Engine) library is used. However, the direct use of the library in the AR environment poses a lot of problems. Most of all, the coordination of the coordinate systems between OSG (OpenSceneGraph) and ODE must be taken care of. Next the positions of markers are also needed to be considered. In this paper, such problems are addressed and solutions to them are discussed.