@inproceedings{Lefohn:2005:DAS,
| title | = | "Dynamic Adaptive Shadow Maps on Graphics Hardware", |
| booktitle | = | "ACM SIGGRAPH 2005 Conference Abstracts and Applications", |
| author | = | "Aaron
Lefohn AND Shubhabrata
Sengupta AND Joe
M. Kniss AND Robert
Strzodka AND John
D. Owens ", |
| year | = | "2005", |
| month | = | aug, |
| url | = | "http://graphics.cs.ucdavis.edu/~lefohn/work/glift/", |
| location | = | "Los Angeles, CA", |
| eventtime | = | "August 1--4, 2005", |
| abstract | = | "We present a novel implementation of adaptive shadow maps
(ASMs) that performs all shadow lookups and scene analysis on the GPU,
enabling interactive rendering with ASMs while moving both the light
and camera. Adaptive shadow maps offer a
rigorous solution to projective and perspective shadow map aliasing
while maintaining the simplicity of a purely image-based
technique. The complexity of the ASM data structure, however, has
prevented full GPU-based implementations until now. Our approach uses an
entirely GPU-based data structure and a blend of graphics and GPU stream
programming. We support shadow map effective resolutions up to
131,072 x 131,072 and, unlike previous implementations, provide smooth
transitions between resolution levels by trilinearly filtering
(mipmapping) the shadow lookups.
", |
