Research on the Key Technology of Urban Planning Virtual Emulation System based on OpenGL

Guoliang ZHAO1, Guolin ZHAO2

1Xi’an Science and Technology University Surveying Department, Xi’an, 710054, CHINA

2Air Force Early Warning Academy, Wuhan, 430019, CHINA

Abstract: 3dmax software is a tools of three dimension model.VC is a platform of development. OpenGL is interface of graphics .And urban planning three virtual emulation system is developed. The key technology is researched: 3dmax texture render, three dimension model reading and demonstrator, DirectSound sound effect control, LOD, sun shadow analysis. The system is a successful application of urban planning virtual emulation.

Keywords: Virtual Reality; OpenGL; 3dmax; LOD; Sun Shadow Analysis