“Ray Tracing Depth Maps Using Precomputed Edge Tables” by Egan and Neulander
Conference:
Type(s):
Title:
- Ray Tracing Depth Maps Using Precomputed Edge Tables
Session/Category Title: Raytracing and PhotoMaps
Presenter(s)/Author(s):
Abstract:
We present a new data structure and algorithm for parallelizing the ray tracing of depth maps to accurately render soft shadows. Instead of caching shadow rays or optimizing intersection computations for a single ray [Agrawala et al. 2000], we instead trace many shadow rays to the light in parallel by using a lookup table at each filter pixel edge.
References:
Agrawala, M., Ramamoorthi, R., Heirich, A., and Moll, L. 2000. Efficient image-based methods for rendering soft shadows. In Proceedings of ACM SIGGRAPH 2000, 375–384.
