Virtual reality three-dimensional scene loading and rendering method and device and terminal equipment

Abstract

The embodiment of the invention provides a virtual reality three-dimensional scene loading and rendering method and device and terminal equipment, and the method comprises the steps: obtaining a three-dimensional space coordinate of a user in a virtual reality interaction scene at present, and carrying out the projection of the three-dimensional space coordinate in a plane terrain, so as to obtain a latitude and longitude coordinate of a user viewpoint; determining a target block three-dimensional scene where a user viewpoint is located according to the latitude and longitude coordinates, and selecting a domain block three-dimensional scene according to a preset step length to obtain a candidate loading three-dimensional scene; carrying out edge scene cutting on the candidate loading three-dimensional scene according to a preset radius, and obtaining an actual loading three-dimensional scene; and according to the actually loaded three-dimensional scene, loading and rendering the corresponding block three-dimensional geographic scene model from the three-dimensional scene model resource library in real time. According to the technical scheme, the problem of loading of massive three-dimensional scene model data is solved, the loading and rendering efficiency is guaranteed, meanwhile, the sense of reality of three-dimensional scene roaming is guaranteed, and the user experience is greatly improved.

Description

Technical field [0001] The present application relates to virtual reality technology, in particular, involving a virtual reality three-dimensional field loading and rendering method, device, and terminal equipment. Background technique [0002] The three-dimensional Sand-immersed virtual reality (VR) three-dimensional field model has a massive characteristics. In recent years, although the computer's hardware system has developed rapidly, however, computers relative to such a massive three-dimensional scene model The memory and the capacity of the graphics card still appear negligible, so how to achieve massive three-dimensional scene dynamic loading and rendering in a limited memory capacity is still the current technical bottleneck. Moreover, the rich computer memory resources required by massive data and large-scale three-dimensional scenarios are required, and the construction of three-dimensional scenarios is more than specific application scenarios, such as digital campus, ...

AI Technical Summary

Problems solved by technology

[0002] The global-scale immersive virtual reality (VR) 3D scene model has massive features. In recent years, although the hardware system of the computer has been developed rapidly, however, compared with such a massive 3D scene model, the computer The memory and the capacity of the graphics card are still insignificant, so how to realize the dynamic loading and rendering of massive 3D scenes within the limited memory capacity is still the current technical bottleneck

Moreover, limited by the acquisition of massive data, organization and management, and the abundant computer memory resources required for large-scale 3D scene modeling, the construction of 3D scene models is mostly oriented to specific application scenarios, such as digital campuses, digital cities and other application scales. Mainly, it is difficult to realize 3D scene modeling and model loading and rendering with massive characteristics on a national or global scale.

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