Shape-considered two-dimensional digital character skeleton operation method

An operation method and dimensional digital technology, applied in the field of two-dimensional character animation, can solve problems such as the inability to consider character geometry or structural characteristics, complex deformation processing process, etc., to achieve natural and rich visual realism, natural and rich deformation effect, method simple effect

Inactive Publication Date: 2013-01-30
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] The present invention mainly solves the technical problems existing in the prior art that the deformation processing process is complex and cannot consider the geometric or structural charact

Method used

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  • Shape-considered two-dimensional digital character skeleton operation method
  • Shape-considered two-dimensional digital character skeleton operation method
  • Shape-considered two-dimensional digital character skeleton operation method

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Embodiment

[0034] Embodiment: The operation method of the two-dimensional digital character skeleton considering the shape of this embodiment is as follows: figure 1 shown. First, the user draws a simple closed polygon along the character's outline boundary. Then, using the polygon as a boundary constraint, a triangle mesh is generated inside the two-dimensional digital character through the standard Delaunay triangulation algorithm (such as figure 2 shown), as the internal geometric representation of the character.

[0035]In the process of operating a two-dimensional digital character, the user first specifies the joint nodes on the two-dimensional digital character, and creates a control skeleton for the character; then, edits the skeleton by moving the positions of the joint nodes. After each user edits the skeleton, the deformed position of the vertices of the triangle mesh is calculated by minimizing the sum of the rigid energy term and the pose constraint energy term. Then, th...

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Abstract

The invention discloses a shape-considered two-dimensional digital character skeleton operation method, which comprises the following steps: 1, setting up a two-dimensional digital character; 2, drawing the boundary contour of the two-dimensional digital character; 3, generating a triangular net in the boundary contour; 4, specifying a joint node on the two-dimensional digital character by a user, and creating a control skeleton according to the joint node; 5, changing the position of the skeleton through moving the position of the joint node by the user, and enabling the triangular net to deform with the skeleton through minimizing a geometric deformation energy function; and 6, mapping the deformation of the triangular net to the two-dimensional digital character so as to obtain a new posture of the two-dimensional digital character. The method disclosed by the invention is intuitive and simple, and can generate a more natural and visually realistic deformation effect, therefore, the method is applicable to animation design implemented by common users.

Description

technical field [0001] The invention relates to the technical field of two-dimensional character animation, in particular to a two-dimensional digital character skeleton operation method considering shape. Background technique [0002] With the development of digital media technology, many digital entertainment applications have emerged, such as movies, networks, games and so on. Character animation is an important part of these applications. Therefore, in order to further promote and popularize these applications, it is necessary to design and provide corresponding tools so that ordinary users can create character animation intuitively and easily. [0003] Two-dimensional shape deformation is an important technique in the field of computer animation. Given a two-dimensional character, this technology can create rich pose effects for the character by changing the shape of the character, and then create a corresponding character animation sequence. In computer 2D commercia...

Claims

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Application Information

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IPC IPC(8): G06T13/80
Inventor 杨文武
Owner ZHEJIANG GONGSHANG UNIVERSITY
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