ATMOSPHERIC ILLUMINATION AND SHADOWS.

被引：48

作者：

Max, Nelson L. ^{[1
]}

机构：

[1] Lawrence Livermore Natl Lab,, Livermore, CA, USA, Lawrence Livermore Natl Lab, Livermore, CA, USA

来源：

Computer Graphics (ACM) | 1986年 / 20卷 / 04期

关键词：

COMPUTER PROGRAMMING - Algorithms - IMAGE PROCESSING;

D O I：

10.1145/15886.15899

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The shadow volume algorithm of Frank Crow was reorganized to provide information on the regions of illuminated space in front of each visible surface. This information is used to calculate the extra intensity due to atmospheric scattering, so when the atmosphere is partly in shadow, columns of scattered light will be visible. For efficiency in sorting the shadow edges, the image is computed in polar coordinates.

引用

页码：117 / 124