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- Title
GRAPHICS-IMAGE MIXED METHOD FOR LARGE-SCALE BUILDINGS RENDERING.
- Authors
Zhou Yang; Xu Qing; Xing Shuai; Hu XiaoFei
- Abstract
Urban 3D model data is huge and unstructured, LOD and Out-of-core algorithm are usually used to reduce the amount of data that drawn in each frame to improve the rendering efficiency. When the scene is large enough, even the complex optimization algorithm is difficult to achieve better results. Based on the traditional study, a novel idea was developed. We propose a graphics and image mixed method for large-scale buildings rendering. Firstly, the view field is divided into several regions, the graphics-image mixed method used to render the scene on both screen and FBO, then blending the FBO with scree. The algorithm is tested on the huge CityGML model data in the urban areas of New York which contained 188195 public building models, and compared with the Cesium platform. The experiment result shows the system was running smoothly. The experimental results confirm that the algorithm can achieve more massive building scene roaming under the same hardware conditions, and can rendering the scene without vision loss.
- Subjects
PUBLIC buildings; THREE-dimensional imaging; BUILDING information modeling
- Publication
International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, 2018, Vol 42, Issue 2, p1237
- ISSN
1682-1750
- Publication type
Article
- DOI
10.5194/isprs-archives-XLII-2-1237-2018