Method for rigid deformation of three-dimensional model

Abstract

The invention provides a method for rigid deformation of a three-dimensional model. The method comprises: one or more control peaks are selected form a plurality of peaks of a topological structure of a three-dimensional model; and according to neighborhood coefficients corresponding to all peaks and positions of the control peaks after deformation, positions of the peaks except the control peaks after deformation are calculated. According to the method provided by the invention, different neighborhood coefficients are set for different positions in the three-dimensional model to simulate rigidity of the positions. Compared with the prior art, the provided method is flexible; and the obtained neighborhood coefficients can be used repeatedly to carry out deformation on a to-be-deformed model after the neighborhood coefficients are obtained under the circumstance that the topological structure of the to-be-deformed model does not change greatly.

Description

[0001] technology neighborhood [0002] The present invention relates to computer graphics, and more particularly to methods for morphing three-dimensional models. Background technique [0003] The technology of geometrically deforming the 3D model, also known as "model deformation technology", refers to selecting control vertices on the 3D mesh model, and driving the 3D model deformation by manipulating the position changes of the control vertices. The model deformation technology is widely used in the production of 3D cartoon animation and movie special effects. [0004] In the above applications, in order to achieve a realistic and reasonable deformation effect, a method based on skeleton movement is often used. However, this method requires the establishment of an accurate skeleton model, which is technically difficult and requires the user to spend extra time, cost and energy to build the skeleton. . There are also some model deformation techniques that use simple geom...

AI Technical Summary

Problems solved by technology

However, when using the deformation method in practice, it is often necessary to perform deformation according to the deformation characteristics of the model itself. The above-mentioned methods for rigidly deforming the 3D model only consider the deformation of a model, which cannot be specific to each area that needs to be deformed. Or partially distinguish different rigidity coefficients, making it difficult to obtain realistic and lifelike effects using the above methods

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