【摘要】 鉴于野外地震采集具有系统庞大、仪器昂贵、成本高、风险大等诸多不利因素,开发虚拟地震采集仿真系统无疑对于地震采集实验教学和人才培训等具有重要的现实意义.天空仿真是虚拟地震采集系统野外作业工区视景仿真的重要内容.按照简单、快速、高效的原则,在详细阐述天空仿真和漫游实现方法的基础上,借助于VC++6.0和OpenGL平台,实现了晴天、阴天、雾天等多种静态自然景象的仿真开发,同时实现了步行和飞行两种模式的漫游功能.仿真结果真实感强、渲染速度快、交互性能良好,对于提升虚拟地震采集仿真系统的逼真度和沉浸感具有一定的实用价值.更多还原

【Abstract】 Because seismic acquisition in field has many adverse factors such as large system,expensive equipment,huge cost,high risk and so on,it has important meaning to develop virtual seismic acquisition system for experimental teaching and talent training.Sky simulation is an important part of the visual simulation of field work scene of seismic acquisition.According to the principle of simple,efficient and fast,the method used in sky simulation and roaming are given and used successfully to actual simulation development of sunny,cloudy and fog weather situation on VC++ 6.0 and OpenGL platform.Meanwhile,two kinds of roaming function of walking and flying are realized.The simulation results which have strong sense of reality,fast rendering and good interactive performance have certain practical value for improving the fidelity and immersion of virtual simulation system of seismic acquisition.更多还原