FPGAによる仮想レオロジー物体のリアルタイム変形シミュレーション Real-time Simulation of Rheological Deformation on FPGA
Deformable soft objects such as food and tissue show both elastic and viscoplastic properties, and are referred to as rheological objects. A physical model of virtual objects has been developed, but computer power is insufficient to compute large virtual rheological objects in real-time. This paper describes the real-time computation of the deformation of virtual rheological objects on an FPGA (Field Programmable Gate Array). An FPGA is an LSI in which logical circuit is rewritable. FPGAs enable us to perform computation of virtual rheological deformation in parallel. We designed a logical circuit to compute the deformation of virtual rheological objects on an FPGA, and we realized a system that computes the deformation 8.26 times as fast as a PC with 1.7 GHz CPU. Our estimations show that an FPGA is capable of computing the deformation 75.2 times faster than a PC.
日本バーチャルリアリティ学会論文誌 10(3), 443-452, 2005