Fuzzy control method for generating group animation

A fuzzy control and group technology, applied in animation production, 3D image processing, image data processing, etc.

Inactive Publication Date: 2009-01-14
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to sacrificing the autonomy of individuals in the group to a certain extent, this type of method can only express a relatively uniform and specific overall effect

Method used

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  • Fuzzy control method for generating group animation

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Embodiment Construction

[0030] An embodiment of a fuzzy method for generating group animation according to the present invention will be described in detail below in conjunction with the accompanying drawings.

[0031] Such as figure 1 As shown, a fuzzy method for generating crowd animation includes the following steps:

[0032] (1) The user inputs the number of individuals in the group, the individual attributes and the global control parameters of the group, and generates the group animation required by the user in real time;

[0033] All individuals in the group have similar individual properties, including mass M, maximum velocity V max , the maximum acceleration a max , the radius r of collision avoidance, the angle of view, the radius of neighbors, the starting position at the beginning of the simulation and the target position to be reached by the group;

[0034] The global control parameters of the group include the starting position of the entire group at the start time of the group anima...

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Abstract

The invention discloses a fuzzy control method for generating crowd animation. The method includes the following steps: (1) a user inputs the number and the property of individuals of a crowd and the overall control parameters of the crowd so as to generate the crowd animation which is required by the user in real-time; (2) the individuals of the crowd move in a virtual scene under the action of four forces, namely, the field force of vector of F<vector>, combined application force of F<base>, leading force of F<follow> and resistance of F<brake>; and the fuzzy control process of the crowd is realized according to the distance between the current location and the target location of the individuals of the crowd by the design of a weighting curve w(t) to adjust the respective ratio accounted for by the weighting w of the four forces, namely, the field force of vector of F<vector>, combined application force of F<base>, leading force of F<follow> and resistance of F<brake>, so as to guarantee that the crowd smoothly and naturally moves towards the target location. The method of the invention can generate the crowd animation containing hundreds of thousands of individuals in real-time, vividly maintain the individual property of the crowd during the moving process, and simulate the overall motion behavior of the crowd in natural condition.

Description

technical field [0001] The invention relates to the field of local fuzzy control, which simulates the fuzzy control of individual-based group animation by calculating the force through local control rules, and in particular relates to a fuzzy control method for generating group animation. Background technique [0002] In recent years, with the in-depth research of computer graphics and 3D animation technology, group animation technology has been continuously developed and improved driven by the demand for digital entertainment. The motion simulation of crowds is both beautiful and complex: its beauty lies in the synchronicity and heterogeneity that are uniformly displayed in the movement of the crowd; the complexity is reflected in the considerable number of parameters that need to be processed in order to represent these characters. In order to create a visually realistic effect, motion control is the most critical part of the group animation simulation, that is, how to def...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/70G06T13/40
Inventor 许佳奕金小刚沈恬
Owner ZHEJIANG UNIV
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