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

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...

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 simulation application program; (2) OpenGVS only provides a procedural user interface, which is difficult to combine well with the object-oriented simulation application program; (3 )OpenGVS does not support access to the underlying drawing elements (such as a triangular surface of a 3D model), and it is difficult to achieve some special effects, which also makes it difficult to implement various optimization measures to improve system performance

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