自适应实时阴影算法研究与实现(英文)  

Research and realization of self-adaptive real-time shadow algorithm

作　　者：詹华蕊[1] 谢晓尧[1] 景凤宣[1] 

机构地区：[1]贵州师范大学、贵州省信息与计算科学重点实验室,贵州贵阳550001

出　　处：《贵州师范大学学报（自然科学版）》2012年第6期100-104,112,共6页Journal of Guizhou Normal University：Natural Sciences

基　　金：supported in part by Development and Reform Commission of Guizhou Province,China under Grant 20102400;Economy and Informatization Commission of Guizhou Provice,China under Grant 20101013

摘　　要：提出一种有效的自适应阴影算法。该算法首先用多个有不同深度的阴影图来替换传统的一个阴影图,然后在绘制场景到屏幕之前,将场景绘制到一个屏幕缓冲纹理中,对其进行PCF和模糊处理,最后生成阴影。实验表明,该算法简单实用,不仅能够在保证大规模场景绘制速率的同时,生成令人满意的逼真实时阴影,还能达到在大规模场景中实时绘制阴影的效果。Put forward an effective self-adaptive shadow algorithm. The algorithm first replaces the traditional shadowgraph with a shadowgraph with different depths, then draws the scene in a screen buffer texture and disposes it using PCF and fuzzy processing before drawing the scene in a screen and finally generates the shadow. Experiments clearly shows that the algorithm is simple and practical, it can not only guarantee the speed of large-scale scene drawing while generate satisfying verisimilitude real-time shadow, but also achieve the effectiveness of real-time drawing shadow in a large-scale scene drawing.

关 键 词：阴影映射 阴影图 PCF 实时阴影 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]