CAD Model´s Simplification and Conversion for Virtual Reality

Due to huge number of triangles are produced when CAD model converts to graphics model that making use of the current data interface, it can´t meet the requirement of real time rendering in virtual reality system. In this paper, a novel approach about CAD model´s simplification and conversion was proposed. The geometry data of CAD models was simplified by reduction algorithm and then converted to graphics level-of-detail model for VR system by OpenFlight API. It was proved that the model was better for virtual reality by the experiment.