MULTI-PURPOSE RECURSIVE MAPPING METHOD FOR ANIMATING LARGE-SCALE CUMULONIMBUS CLOUDS(INTERNATIONAL Workshop on Advanced Image Technology 2008)

概要

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Simulation and animation techniques for generating continuously growing clouds with a high degree of reality are very challenging and difficult tasks in computer graphics. In our previous study, we presented a hybrid method of animating cumulus-type cloud growth on a large scale, and have since tried to obtain even more realistic animation of continuous growth of clouds. The hybrid method we present recursively generates continuously growing clouds efficiently in respect of computation time and memory consumption. In this study, we will present an extension method of representing a highly realistic animation of continuously growing clouds with detailed behavior. As the extension, an Inward-Recursive mapping method is presented, which is used together with the previously proposed method, which is called Outward-Recursive mapping. To reduce the uniformity of generated clouds caused by using only one kind of 3D primitive pattern in the mapping process, and to improve the realism of the clouds generated, we prepare multiple 3D primitive patterns and map them recursively in each recursive level. Experimental results show that the proposed method efficiently creates realistic animations of large-scale clouds with more detailed behaviors, accompanied by fast calculation times and low memory requirements.
社団法人電子情報通信学会の論文
2007-12-31