GB2605360A8 - Method, Apparatus and Storage Medium for Realizing Geometric Viewing Frustum of OCC Tree in Smart City - Google Patents

Method, Apparatus and Storage Medium for Realizing Geometric Viewing Frustum of OCC Tree in Smart City Download PDF

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Publication number
GB2605360A8
GB2605360A8 GB2103526.6A GB202103526A GB2605360A8 GB 2605360 A8 GB2605360 A8 GB 2605360A8 GB 202103526 A GB202103526 A GB 202103526A GB 2605360 A8 GB2605360 A8 GB 2605360A8
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GB
United Kingdom
Prior art keywords
occluders
occludees
occ
storage medium
screen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB2103526.6A
Other versions
GB202103526D0 (en
GB2605360A (en
Inventor
Sun Shang
Liu Jingjie
Zhu Rui
Yin Kai
Zhong Chen
Shen Xu
Tang Xintong
Yan Jiayi
Bai Lin
Yu Hao
Qian Chenchuan
Peng Linjian
Wu Tong
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Zhiu Tech Co Ltd
Original Assignee
Beijing Zhiu Tech Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Zhiu Tech Co Ltd filed Critical Beijing Zhiu Tech Co Ltd
Publication of GB202103526D0 publication Critical patent/GB202103526D0/en
Publication of GB2605360A publication Critical patent/GB2605360A/en
Publication of GB2605360A8 publication Critical patent/GB2605360A8/en
Pending legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T17/00—Three dimensional [3D] modelling, e.g. data description of 3D objects
    • G06T17/05—Geographic models
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/10—Geometric effects
    • G06T15/40—Hidden part removal

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Geometry (AREA)
  • Computer Graphics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Software Systems (AREA)
  • Remote Sensing (AREA)
  • Image Processing (AREA)
  • Processing Or Creating Images (AREA)

Abstract

The invention discloses a method, an apparatus, and a computer-readable storage medium for realizing a geometric viewing frustum of an OCC tree applied to a smart city. The method comprises the steps of: Step S1: collecting occluders and occludees, Step S2: sorting the occluders according to weight, Step S3: calculating visibility of the occluders and the occludees and Step S4: traversing the sorted occluders and occludees and using a data structure of 64-bit unsigned long long to store visibility. By mapping the occluders and the occludees to a screen space, a set of screen triangles is generated, and the screen triangles are sorted according to the screen depth, so that the scanning range is enlarged, the detection efficiency is improved, and the detection time is saved.
GB2103526.6A 2021-01-12 2021-03-15 Method, Apparatus and Storage Medium for Realizing Geometric Viewing Frustum of OCC Tree in Smart City Pending GB2605360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110037005.1A CN112686992A (en) 2021-01-12 2021-01-12 Geometric figure view frustum realization method and device for OCC tree in smart city and storage medium

Publications (3)

Publication Number Publication Date
GB202103526D0 GB202103526D0 (en) 2021-04-28
GB2605360A GB2605360A (en) 2022-10-05
GB2605360A8 true GB2605360A8 (en) 2022-10-26

Family

ID=75439115

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2103526.6A Pending GB2605360A (en) 2021-01-12 2021-03-15 Method, Apparatus and Storage Medium for Realizing Geometric Viewing Frustum of OCC Tree in Smart City

Country Status (2)

Country Link
CN (1) CN112686992A (en)
GB (1) GB2605360A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6603474B1 (en) * 1999-05-27 2003-08-05 International Business Machines Corporation Method and apparatus for occlusion culling of objects in a data processing system
US20030117398A1 (en) * 2001-12-21 2003-06-26 Hubrecht Alain Yves Nestor Systems and methods for rendering frames of complex virtual environments
CN104331918B (en) * 2014-10-21 2017-09-29 无锡梵天信息技术股份有限公司 Based on earth's surface occlusion culling and accelerated method outside depth map real-time rendering room
CN110136082B (en) * 2019-05-10 2021-06-01 腾讯科技（深圳）有限公司 Occlusion rejection method and device and computer equipment
CN111784612A (en) * 2020-07-08 2020-10-16 网易（杭州）网络有限公司 Method and device for eliminating scene object model in game

Also Published As

Publication number Publication date
GB202103526D0 (en) 2021-04-28
CN112686992A (en) 2021-04-20
GB2605360A (en) 2022-10-05

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