Realization of abuttals rendering on rugged terrain

Bai Wang; Gu-yu Hu; Jian-xin Luo; Gui-qiang Ni; Qin Feng; Zhan-tao Deng

doi:10.1117/12.970480

8 June 2012 Realization of abuttals rendering on rugged terrain

Bai Wang, Gu-yu Hu, Jian-xin Luo, Gui-qiang Ni, Qin Feng, Zhan-tao Deng

Proceedings Volume 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012); 83344E (2012) https://doi.org/10.1117/12.970480
Event: Fourth International Conference on Digital Image Processing (ICDIP 2012), 2012, Kuala Lumpur, Malaysia

Abstract

In order to combine rugged terrain and abuttals efficiently and accurately in current GIS, an improved method is presented which realized abuttals rendering on rugged terrain by the way of combining buffer object and ZP+ algorithm which comes from Z-pass. We create the shadow volume via extruding abuttal data, then play real-time rendering ,determine the width of shadow volume dynamically using screen-space error metric, as a result, the volume could fit the scene closely. For improving the render rate we store the volume vertex arrays using buffer object. Experiments indicate that the method advances the program performance, combines abuttals and terrain closely and meets the demand of display.

Citation Download Citation

Bai Wang, Gu-yu Hu, Jian-xin Luo, Gui-qiang Ni, Qin Feng, and Zhan-tao Deng "Realization of abuttals rendering on rugged terrain", Proc. SPIE 8334, Fourth International Conference on Digital Image Processing (ICDIP 2012), 83344E (8 June 2012); https://doi.org/10.1117/12.970480

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