Title:
VOLUMETRIC CLOUD RENDERING METHOD AND APPARATUS, AND PROGRAM AND READABLE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/116659
Kind Code:
A1
Abstract:
A volumetric cloud rendering method and apparatus, and a program and a readable medium. The method comprises: drawing at least one layer of mesh model outward from an original mesh model of volumetric clouds according to a vertex normal vector (S11); on the basis of a noise threshold value corresponding to each layer of mesh model, screening pixel points of the mesh model, so as to obtain a drawing model (S12); calculating illumination information corresponding to the drawing model according to illumination parameters (S13); and rendering the drawing model according to the illumination information, so as to obtain a volumetric cloud to be displayed (S14). In the technical solution, the shape of a volumetric cloud is determined on the basis of a mesh model, rather than by means of the shape of a noise pattern; and in order to change the shape of a volumetric cloud, only the number of additionally drawn layers and a noise threshold value for screening pixel points need to be set, without the need to pre-select a specific noise pattern, thereby reducing the number of times that a noise pattern is used, and further reducing the performance overheads of generating volumetric clouds, such that the volumetric clouds can smoothly operate on a mobile terminal device.
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Inventors:
SHEN CHEN (CN)
Application Number:
PCT/CN2021/121097
Publication Date:
June 09, 2022
Filing Date:
September 27, 2021
Export Citation:
Assignee:
CHENGDU PERFECT WORLD NETWORK TECH CO LTD (CN)
International Classes:
G06T15/00; G06T15/50
Foreign References:
| CN112200900A | 2021-01-08 | |||
| CN111968215A | 2020-11-20 | |||
| CN107481312A | 2017-12-15 | |||
| CN110827391A | 2020-02-21 | |||
| CN106570929A | 2017-04-19 | |||
| US20170161909A1 | 2017-06-08 |
Attorney, Agent or Firm:
TEKYRS INTELLECTUAL PROPERTY INC. (CN)
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