Multi-scene graph construction method in distributed virtual environment

Abstract

The invention discloses a multi-scene graph construction method in distributed virtual environment. The method comprises the following steps: 1) dividing a scene graph in a scene graph server into a public scene graph and a private scene graph; 2) setting access right and the private scene graph which can be accessed by each registered user through a right server; and 3) operating the private scene graph by the user according to the access right, editing the editable private scene graph or creating a sub-scene graph to serve as the private scene graph of the user, and storing the private scene graph of the user into the scene graph server, wherein each scene graph corresponds to one type of scene object set in one scene area, scene objects are various static or dynamic entity objects, except terrain scenes, in description virtual reality environment, each scene object corresponds to a scene node in the scene graph, logic relationship between the scene nodes is determined according to the logic relationship between the scene objects, and each scene graph is provided with a root node used for representing the scene graph. Scene drawing efficiency is improved.

Description

technical field [0001] The invention relates to a method for constructing a multi-scene graph in a distributed virtual environment, belonging to the fields of virtual reality and graphics. Background technique [0002] In applications related to virtual reality, in addition to terrain scenes composed of DEM and images in the virtual environment, 3D architectural models and other scene object models generated by external loading, editing tools in the virtual environment, or by means of scene semantic annotation , are an indispensable and important part of virtual scenes. These scene objects include not only static 3D architectural models, but also various dynamic models such as cars, as well as various ideographic primitive models such as icons or information labels. For the whole process of describing the development and changes of virtual environment events until the end, the whole process management of the position and state of scene objects in virtual scene becomes an imp...

AI Technical Summary

Problems solved by technology

[0007] In the existing patented technologies and documents, there is no correlation between scene graphs and user access in other patent documents on scene graphs or scene ma...

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