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A Group Behavior Control Method Under the Influence of Fluid Environment

An environmental impact and fluid technology, applied in the field of virtual reality, can solve problems that do not conform to the real appearance and behavior of fluids, achieve high efficiency and improve simulation efficiency

Inactive Publication Date: 2017-07-25
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although particle systems can produce attractive results, they do not match the realistic appearance and behavior of fluids
Physics-based real-time fluid simulation remains a challenge, especially the simulation of fluids interacting with a variety of obstacles

Method used

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  • A Group Behavior Control Method Under the Influence of Fluid Environment
  • A Group Behavior Control Method Under the Influence of Fluid Environment
  • A Group Behavior Control Method Under the Influence of Fluid Environment

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Embodiment Construction

[0046] specific implementation plan

[0047] The preferred implementation modes of the present invention are further described below in conjunction with the accompanying drawings and implementation examples:

[0048] figure 1 Shown flow chart has provided the concrete process of whole implementation of the present invention:

[0049] Step 1: Initialize physical quantities such as the level set and velocity of the fluid, and advect the level set and velocity of the fluid. Before initializing the physical quantities of the fluid, the simulation grid of the fluid needs to be initialized. A 3D texture is then created from the mesh, saving the initial state of the fluid (level set, velocity, etc.). Velocity is the most important quantity during fluid simulation, because velocity determines how the fluid moves itself, as well as what is in the fluid. The process of transporting the fluid itself and other quantities in the fluid by velocity is known as advection. In the present ...

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Abstract

The invention provides a group behavior control technology under the fluid environment influence. In the aspect of fluid simulation based on physics, the level set, speed and other physical quantities of fluid are updated by solving and calculating the convective item, external force item and pressure item in a computational fluid dynamics equation (the Navier-Strokes equation), and simulation calculation of the fluid is completed based on a GPU (Graphic Processing Unit). In the group behavior planning aspect based on potential energy fields, the local potential energy field and the overall potential energy field are effectively fused. Therefore, the optimal path is guaranteed, and meanwhile computing efficiency is improved. In the aspect of the influence of the fluid environment on group behaviors, the final navigation force is influenced mainly through acting force generated to individuals (Agent) so that the aim of controlling the group behaviors can be achieved. The reality effect of group behavior control under the fluid environment influence can be effectively achieved.

Description

technical field [0001] The invention belongs to the technical field of virtual reality, and in particular relates to a group behavior control method under the influence of a fluid environment. Background technique [0002] Group animation is widely used in computer games, film and television animation, urban architectural planning and many other aspects. However, simulating large-scale crowd behavior, especially real-time simulation, is a complex and arduous task. Because the simulation of group behavior not only involves the high-level decision-making process, but also considers the representation of underlying things and the interactive calculation between things. What's more troublesome is that the complex constraint relationship between individuals and between individuals and the environment determines that when the group size increases, the complexity of simulation operations will increase non-linearly. [0003] In the field of computer simulation research, fluid simu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/00G06T17/30
CPCG06T13/60G06T2210/24
Inventor 卢光辉温泉陈雷霆蔡洪斌曹跃邱航崔金钟
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA