Real Time Vertex Based Deformation in Training Simulator

Soft tissue simulation is very important in medical simulation and learning procedures. But such simulations require intensive computation. With the force feedback devices, the computation required should be much faster as touch sensation is approximately 20 times faster than that of visual. In this paper an efficient Vertex based algorithm for visual deformation is presented. Visual deformation of linear, isotropic and homogenous triangular mesh soft model is achieved by modifying a slope intercept equation of a line which is used to get a new position for the point contacted through a tip of a force feedback device. Haptic sensation is achieved using Hooke´s law which is coupled with visual deformation based on our proposed algorithm. In our simulation we use up to 20K of triangles for object representation.