Browse > Article
http://dx.doi.org/10.6109/jkiice.2016.20.7.1363

Prediction Based Dynamic Level of Detail in Flight Simulator  

Kim, DongJin (Department of Informatics, Engineering Research Institute, Gyeongsang National University)
Lim, Juho (Department of Informatics, Engineering Research Institute, Gyeongsang National University)
Kim, Ki-Il (Department of Informatics, Engineering Research Institute, Gyeongsang National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.20, no.7, 2016 , pp. 1363-1368 More about this Journal
Abstract
Fast rendering speed is one of key functions to provide realistic scenes in flight simulator. However, since flight simulator mostly operates with high volume terrain data, rendering speed is reduced and changed very rapidly when it handles file containing too much vertexs. So, previous schemes make use of Level of Details (LOD) scheme to prevent this problem. But, since LOD is applied after the large number of vertexs are detected, transition between scenes is not completely smooth. To solve this problem, in this paper, we propose a new dynamic LOD scheme which controls LOD level in advance through prediction of vertex overload. To verify the proposed scheme, we implement the proposed scheme in our flight simulation through OpenSceneGraph(OSG) and identify the reduced number of vertexs and enhanced Frame Per Second (FPS) by comparing real data with predicted one.
Keywords
Level of detail(LOD); Prediction; Rendering; Frame per second(FPS);
Citations & Related Records
연도 인용수 순위
  • Reference
1 Microsoft. Flight simulator [Internet]. Available: https://www.microsoft.com/Products/Games/FSInsider/product/Pages/default.aspx
2 Laminar Research. X-plane [Internet]. Available: http://www.x-plane.com/desktop/home/
3 FlightGear Project. FlightGear Flight Simulator [Internet]. Available: http://www.flightgear.org/
4 D. Luebke, B. Watson, J. Cohen, M. Reddy and A. Varshney, Level of detail for 3D graphics, San Francisco, Elsevier Science Inc., 2002.
5 W. Ying, W. Yanjie, "Implementation of a fast simulation algorithm for terrain based on dynamic LOD," International Conference on Electronic Measurement & Instruments (ICEMI), pp.189-193, Aug. 2011.
6 F. Biljecki, H. Ledoux, J. Stoter, J. Zhao, "Formalisation of the level of detail in 3D city modelling," International Journal of Computer Environment and Urban Systems, pp. 1-15, Nov. 2014.
7 C. Lee, S. Kang, S. Kang, K. Kim and K. Kim, "Development of key functions for flight simulator," International Journal of Control and Automation, vol.9, no.1, pp.347-358, Jan. 2016.