Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Dummy dynamic population visibility judging method

A group and dynamic technology, applied in the field of virtual reality, can solve problems such as large amount of calculation and incompatibility, and achieve the effect of strong adaptability, reducing consumption and saving computing time.

Inactive Publication Date: 2009-01-07
BEIJING BOOSTIV TECH
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the existing virtual dynamic group visibility judgment method that the amount of calculation is too large and not suitable for large-scale virtual dynamic groups, thereby providing an efficient and fast visibility judgment method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Dummy dynamic population visibility judging method
  • Dummy dynamic population visibility judging method
  • Dummy dynamic population visibility judging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The method for judging the visibility of the virtual dynamic group in the present invention is to combine the individual with the scene node in the simulation process, and then realize the visibility judgment of the individual through the visibility judgment of the scene node. In the following embodiments, taking a virtual person as an example, combining image 3 The implementation process of how to realize the visibility judgment of virtual crowd is described in detail.

[0037] The realization process of virtual crowd movement is realized on the basis of crowd simulation data. The group simulation data is data used to represent the spatial position of each individual in the virtual group to be simulated at different times. An example of existing group simulation data is given in Table 1 below, which gives the spatial position and attributes of individual m at different times, and the attributes include information such as residence time and motion state.

[0038] Ta...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a visibility judgment method of a virtual dynamic crowd, which is used for judging visibility of each individual in the virtual dynamic crowd based on crowd simulation data; wherein, the crowd simulation data comprises individuals, locations of the individuals at a certain time and IDs of scene nodes corresponding to the individuals at a certain time; the visibility judgment method comprises the following steps: visibility eliminating is carried out for a static scene, a visibility result of each frame is updated to the visibility information array of the nodes in time; the individuals in the simulation data are combined with the scene nodes corresponding to the IDs of the scene nodes, and then the visibility eliminating of each individual is realized according to the visibility of the scene nodes in the visibility information array of the nodes. The method of the invention takes an individual in the crowd as one part of the corresponding scene node of the individual, and directly attaches the scene visibility to the individual, which avoids solely judging the visibility of a great quantity of individuals, and greatly reduces consumption caused by spatial data structure update and individual shading query.

Description

technical field [0001] The invention relates to the field of virtual reality, in particular to a method for judging the visibility when drawing a virtual dynamic group. Background technique [0002] When using virtual reality technology to visualize large-scale complex scenes in 3D, it involves real-time rendering technology for complex scenes. Visibility judgment has always been a very important research topic in the field of real-time rendering. Since a large part of a complex scene is usually out of view, occluded, and other invisible states, avoiding calculation and rendering of it can save a considerable amount of work and improve real-time rendering efficiency. However, in many practical applications, complex scenes include not only static environment models, but also large-scale dynamic swarms that bring life to a single static scene. For example, in the safety rehearsal, the simulation of the safety plan requires a large number of virtual crowds as the main body; in...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T15/00
Inventor 王竹束搏徐文彬王兆其
Owner BEIJING BOOSTIV TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com