Three-dimensional scene real-time drafting framework and drafting method

A real-time rendering and three-dimensional scene technology, applied in image data processing, 3D image processing, instruments, etc., can solve problems such as difficulties in realizing special effects, difficulty in implementing various optimization measures, and failure to support access to underlying drawing elements, etc., to achieve expansion Strong, low coupling, fast rendering effect

Inactive Publication Date: 2006-04-26
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

OpenGVS of American Quantum3D company is exactly a kind of running platform of virtual environment, OpenGVS has certain virtual scene management function, provides procedural user interface, but OpenGVS also has some limitations: (1) the virtual scene drawing cycle process that OpenGVS provides makes It forms a tightly coupled relationship with the simulation application program, which is not conducive to the maintenance and expansion of the si

Method used

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  • Three-dimensional scene real-time drafting framework and drafting method
  • Three-dimensional scene real-time drafting framework and drafting method
  • Three-dimensional scene real-time drafting framework and drafting method

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Embodiment Construction

[0027] Such as figure 1 As shown, the present invention consists of a three-layer architecture: the bottom layer is the drawing language abstraction layer CGAL, which belongs to the drawing language layer management, and encapsulates drawing languages ​​of different versions and specifications existing in the industry, such as all states and drawing attributes of OpenGL or DirextX, etc. , which is called when drawing management in the core module.

[0028] The middle layer is the core framework for plug-in management, SceneGraph management, RenderGraph management, and drawing management for reading and writing model files (including solid model files, material files, texture files, sound files, and configuration files, etc.). The plug-in management module is based on A functional module designed in the form of a plug-in, which provides a flexible system extension form, uses a unified form to call the plug-in function, and uses the plug-in management to easily expand the model ...

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Abstract

The invention discloses a three-dimensional scene real-time drafting frame of three-layer system, which is characterized by the following: the bottom layer is drafting language administration layer to call all states and drafting properties of different edition format drafting language; the medium layer contains slot administration, scenegraph administration, drafting graph administration and drafting administration mode; when the top layer displays the call requirement; the slot administration mode reads the model file to form scene image through scenegraph administration mode, which finishes App, Cull and Draw operation of scenegraph through drafting administration mode; the top layer provides interface layer for user, which provides convenient user call mechanism and message disposal mechanism.

Description

Technical field [0001] The invention relates to a three-dimensional scene real-time rendering framework and a rendering method. Background technique [0002] Virtual reality (Virtual Reality, referred to as VR) technology is a comprehensive technology and method for simulating and realistic experience of the real world. It involves knowledge in different fields such as computer graphics, human-computer interface, sensing and artificial intelligence. Since 80% of human information is obtained by vision, visual simulation and realistic visual experience of the real world are important components of virtual reality systems. Key technologies such as three-dimensional geometric modeling technology, modeling technology based on physical force, image and graphics combination technology, and efficient realistic graphics rendering technology have become hot research issues. Virtual reality is a practical technology that has been widely used in military, aerospace, design, manufactu...

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Application Information

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IPC IPC(8): G06T15/00
Inventor 赵沁平王莉莉杨跃东
Owner BEIHANG UNIV
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