Method for carrying out segmentation on role model by utilizing grid vertexes

A technology of mesh vertices and character models, applied in the fields of virtual reality and computer graphics, to achieve the effect of improving the deformation speed and deformation quality

Inactive Publication Date: 2010-10-20
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology

[0005] The purpose of the present invention is to overcome the defects of the prior art. In order to improve the deformation speed and deformation effect of the character model, and to combine the deformation with the bone movement of the character model, a method for segmenting the character model by using grid vertices is proposed

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  • Method for carrying out segmentation on role model by utilizing grid vertexes
  • Method for carrying out segmentation on role model by utilizing grid vertexes
  • Method for carrying out segmentation on role model by utilizing grid vertexes

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Embodiment Construction

[0046] The technical solution of the present invention will be further explained below in conjunction with the accompanying drawings and embodiments. The essence of the present invention is a method of dividing the original model into two partial models. According to the technical solution, the role model can be divided into several partial models, which is convenient Subsequent targeted treatment.

[0047] Select four adjacent joint points A, O, B, and C in the original model, where joint points A and O are connected to form bone OA, joint points B and O are connected to form bone OB, joint points B and C are connected to form bone BC, Such as figure 1 shown. The technical solution described in the content of the present invention divides the original model into partial models M 1 and the local model M 2 , as attached figure 2 shown.

[0048] Next, take the deformation of the three-dimensional model composed of the thigh, calf and foot of the human body as an example to...

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Abstract

The invention discloses a method for carrying out segmentation on role model by utilizing grid vertexes. The method comprises the steps: selecting four adjacent articulation points in a prototype, carrying out classification on the grid vertexes on the basis of a position relation of articulation points and the skeletons according to skeleton information of the role model, segmenting the role model into a plurality of local models, therefore, the method can carry out deformation on each local model to form the role model respectively, so as to improve the deformation velocity and deformation quality, acquire bending and torsional angles in a motion unit corresponding to the local model from action data and realize automatic deformation.

Description

technical field [0001] The invention relates to a method for segmenting a character model, and belongs to the technical fields of computer graphics and virtual reality. Background technique [0002] In the deformation of 3D models, there are usually the following deformation techniques: Morphing method, FFD deformation method, and bone-based deformation method. The Morphing method realizes deformation by interpolation method, the FFD deformation method realizes deformation by controlling the control volume surrounding the surface of the 3D model, and the bone-based deformation technology realizes deformation by setting the influence weight of the model surface mesh vertices corresponding to the bones. [0003] For a character model, there are usually two parts of information included in it, the surface mesh information representing the geometric characteristics of the model and the model bone information representing the topological characteristics of the model. The deforma...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/70
Inventor 黄天羽李立杰郝云生李凤霞陈红倩
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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