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A three-dimensional model rendering method and device

A 3D model and model technology, applied in 3D modeling, image data processing, instruments, etc., can solve problems such as computer crashes and inability to realize massive data rendering and rendering, and achieve high-speed and high-precision rendering and rendering effects

Active Publication Date: 2011-12-21
CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] However, this rendering method loads all the graphics data at the same time. When the graphics data exceeds a certain amount, it will cause the computer to crash, and the rendering of massive data cannot be realized.

Method used

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  • A three-dimensional model rendering method and device
  • A three-dimensional model rendering method and device
  • A three-dimensional model rendering method and device

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Embodiment Construction

[0023] In order to facilitate the understanding of the present invention, the following will be described in conjunction with the accompanying drawings.

[0024] In the present invention, LOD (Levels of Detail, level of detail model).

[0025] First introduce the method of the present invention, a kind of three-dimensional model rendering method disclosed by the present invention please refer to figure 1 , including the steps:

[0026] 101. Carry out window clipping on the displayed data;

[0027] The window clipping is performed on the displayed image data to obtain image data corresponding to different viewpoint heights and different latitude and longitude spans.

[0028] In this embodiment, adjust the height of the viewpoint of the window, change the span of latitude and longitude, and obtain different viewing volumes; cut the image display data in the viewing volume to obtain image data corresponding to different viewpoint heights and different latitude and longitude; V...

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Abstract

The invention discloses a three-dimensional model drawing method, comprising the steps of: carrying out viewport cutting on displayed image data so as to obtain image data corresponding to different viewport heights and different spans of latitudes and longitudes; dividing the corresponding image data into a plurality of data blocks according to the different viewport heights and different spans of latitudes and longitudes; carrying out detailed level processing on each data block and constructing a plurality of three-dimensional solid models; and drawing the three-dimensional solid model corresponding to each data block. The invention also discloses a three-dimensional model drawing device which realizes the rending of mass three-dimensional models under the condition of high-speed and high-accuracy drawing of the three-dimensional model data.

Description

technical field [0001] The invention relates to the field of computer image rendering, in particular to a three-dimensional model rendering method and device. Background technique [0002] In the process of 3D space design work, it is often necessary to simulate the 3D space entity first. The method currently used in 3D space entity simulation is to use the designer-oriented ACIS 3D model organization rendering technology. The technology provides advanced modeling capabilities such as wireframe, surface, solid modeling, topology and geometric operations, convenient model browsing through easy-to-use modification, annotation and query utilities, and improved scalability through flexible 3D modeling building blocks, providing 3D rendering functions such as shading and shading have been added. [0003] However, this rendering method loads all graphic data at the same time, and when the graphic data exceeds a certain amount, it will cause a computer crash, and rendering of mas...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
Inventor 黄志秋陈澜曾强雷伟刚潘屹峰王庭松李行义赵阅兵陈隽敏李小稳许少淦黄旭丹苗璘王东甫马海毅汤坚黄春晖
Owner CHINA ENERGY ENG GRP GUANGDONG ELECTRIC POWER DESIGN INST CO LTD
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