【文件属性】:
文件名称:Perspective Shadow Maps
文件大小:2.85MB
文件格式:PDF
更新时间:2013-10-22 10:33:02
Perspective Shadow Map
Shadow maps are probably the most widely used means for the generation
of shadows, despite their well known aliasing problems. In
this paper we introduce perspective shadow maps, which are generated
in normalized device coordinate space, i.e., after perspective
transformation. This results in important reduction of shadow map
aliasing with almost no overhead. We correctly treat light source
transformations and show how to include all objects which cast
shadows in the transformed space. Perspective shadow maps can
directly replace standard shadow maps for interactive hardware accelerated
rendering as well as in high-quality, offline renderers.