计算机科学 ›› 2014, Vol. 41 ›› Issue (10): 321-325.doi: 10.11896/j.issn.1002-137X.2014.10.067
• 图形图像与模式识别 • 上一篇
范晓磊,张立民,张兵强,张媛
FAN Xiao-lei,ZHANG Li-min,ZHANG Bing-qiang and ZHANG Yuan
摘要: 具有真实感云的实时模拟应用非常广泛。基于细胞自动机技术建立云模型,明确了边界网格点的处理方法。通过改进变换规则,引入了上升气流的作用,加快了运行速度并反映了云的真实特性。在光照计算过程中,将多重前向散射光照运用于细胞自动机方法中,并将近似米氏散射的Henyey-Greenstein相位函数嵌入到前向散射光照模型。仿真实验表明,该方法提高了云的外观的真实性,可以实现云的实时绘制。
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