摘要
针对大场景虚拟现实实时漫游中速度慢、内存开销大等问题,研究了如何利用MultiGen Creator构建、优化模型,布置场景和导出配置文件;利用转换工具将OpenFlight模型打包为vsb文件以提升加载速度,结合vs2003平台,在Vega Prime API基础上进行二次开发,设计了一种大场景模型实时加载算法。结果表明,该方案可以满足视景仿真的实时要求,可广泛用于数字中国、数字地球等大场景虚拟现实仿真等领域。
Aimed at slow speed, big memory consumption and other issues existing in virtual reality for large scenes in real- time roaming , this paper studied how to use MultiGen Creator to build and optimize the models, lay out models into scenes and export configuration files. Using conversion tools , packed OpenFlight model into vsb files to enhance the loading speed, combined with vs2003 platform and Vega Prime API ,it designed a algorithm for large scenes VR in real-time. The results showed that the method can meet the real-time visual simulation requirements, can be widely used in many areas of virtual reality for large scenes such as Digital China, Digital Earth and so on.
出处
《系统仿真学报》
CAS
CSCD
北大核心
2009年第S1期117-120,共4页
Journal of System Simulation
