Generalized spring vibrator deformation emulating method with rigid core

Abstract

The invention discloses a simulation method for the deformation of a broad-sense spring oscillator with a rigid body core, which aims at solving the problem that initial shapes can not be kept and integral deformation can not be showed in the deformation simulation of a surface grid model. The invention has the technical scheme that a broad-sense spring oscillator model with a rigid body core is firstly constructed, and the broad-sense spring oscillator model comprises particles and massless springs; the simulation deformation is then performed on the broad-sense spring oscillator model with a rigid body core in the visual display circulation of real-time deformation simulation, which comprises the four steps of the renewal of the rigid body core, the acquisition of internal force born by each particle in the model, the acquisition of combined force born by each particle in the model by combining with external force born by the model, and the drawing of the current shape of the model in a display by the motion state of particles in the model acquired by motion equations and by the particle position of each particle in the model in the current moment. The invention solves the problem that initial shapes can not be kept and integral deformation can not be showed in the deformation simulation of a surface grid model by adopting the prior method.

Description

technical field [0001] The invention relates to a method for simulating object deformation in the field of computer simulation, in particular to a method for simulating deformation of a generalized spring vibrator with a rigid body kernel. Background technique [0002] The physics-based deformation simulation method in computer graphics starts with the physical properties of the object and simulates the deformation of the object. It is mainly used in virtual reality, film, animation and other fields. Many models are used for physics-based deformation simulation, such as finite element method, mass-spring model, and simplified deformation model based on modal analysis. Compared with other models, the spring oscillator model is simple to implement and efficient to solve, so it is one of the first real-time deformation models applied to computer graphics. In 1987, K. Waters used the spring vibrator model to build the face in the paper "A Muscle Model for Animation Three-Dimens...

AI Technical Summary

Problems solved by technology

[0021] The technical problem to be solved by the present invention is to propose a generalized spring oscillator deformation simulation method with a rigid body kernel in view of the shortcomings of the background technology that the initial shape cannot be maintained and the overall deformation behavior cannot be displayed when performing deformation simulation on the surface mesh model

Images