Three dimensional Computer animation and motion Simulation is an important means of technical analysis and diagniosis of sports training techniques. Springboard diving Simulation System is researched in this paper by using three-dimensional Computer assisted animation and the human body model suitable of the System is established. Then we used free deformation method based on XURBS deformed to achieve the body's joint movement. Three-dimensional human body model and its motion model are established in the Computer by introducing computational geometry. At last, the Simulation system is realised by using OpenGL graphical propamming interface. and the position difference Simulation of the platform is carried out in the system The visual effect and real-time motion of the human body model is performance good in this paper and it has a high application value to the guiding practice.
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