Multi-GPU city simulation system for large scene

Abstract

The invention discloses a multi-GPU city simulation system for a large scene, which is based on multi-GPU parallel real-time rendering, and comprises: a main module for completing system configuration, system initialization, thread initialization, user interoperation control, terrain management and resource management; a processing module which is used for updating and processing the resources stored in the main memory and the video memory; and a rendering module which is used for completing loading and rendering of video memory resources and carrying out multi-channel output of a simulation scene through a virtual window, wherein the main control module, the processing module and the rendering module are connected with one another. The system is based on multi-GPU parallel real-time rendering, can be suitable for a multi-GPU city three-dimensional simulation engine of a super-large scene, and achieves the real-time rendering of large-range three-dimensional terrain data and a large amount of fine building model data.

Description

technical field [0001] The invention relates to a large scene-oriented multi-GPU city simulation system. Background technique [0002] The application environment of the 3D real-time multi-GPU city simulation system for large scenes is mainly large conference rooms, lecture halls, exhibition halls and other large places. Generally, users use curved multi-channel projection screens and multi-channel rear projection splicing display systems for display. For most users, city-level high-precision DEM / DOM 3D terrain data and fine building model data are very huge. If you want the simulation system to support such as real-time lighting system, high dynamic range lighting (HDR), real-time shadow system, Real-time rendering and display of 3D simulation technologies such as 3D plant system, atmospheric scattering effect, dynamic water surface with real light reflection effect and animation system. Only by using multi-GPU-CPU parallel rendering method can we provide sufficient computi...

AI Technical Summary

Problems solved by technology

[0003] However, the existing 3D real-time multi-GPU city simulation system for large scenes lacks functions such as cross-screen picking and full-screen operation in multi-channel large scenes

At the same time, due to the constraints of Ethernet network communication, it is difficult to improve the video frame synchronization performance between channels, and there is limited room for improvement in the performance of multi-channel 3D city real-time simulation

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