Home

About

Advanced Search

Browse by Discipline

Scientific Societies

E-print Alerts

Add E-prints

E-print Network
FAQHELPSITE MAPCONTACT US


  Advanced Search  

 
Occlusion Culling and Z-Fail for Soft Shadow Volume Algorithms Ulf Assarsson Tomas Akenine-Moller
 

Summary: Occlusion Culling and Z-Fail for Soft Shadow Volume Algorithms
Ulf Assarsson Tomas Akenine-M¨oller
Chalmers University of Technology
Department of Computer Engineering
412 63 Gothenburg
Sweden
CR Categories: I.3.7 [Computer Graphics ]Three-Dimensional
Graphics and Realism.
Keywords: soft shadows, graphics hardware, shadow volumes.
Abstract
This paper presents a significant improvement of our previ-
ously proposed soft shadow volume algorithm for simulat-
ing soft shadows. By restructuring the algorithm, we can
considerably simplify the computations, introduce efficient
occlusion culling with speedups of 3-4 times, thus approach-
ing real-time performance, and also generalize the algorithm
to produce correct shadows even when the eye is inside a
shadowed region (using z-fail). We present and evaluate a
three pass implementation of the restructured algorithm for
near real-time rendering of soft shadows on a computer with

  

Source: Assarsson, Ulf - Department of Computer Engineering, Chalmers University of Technology

 

Collections: Computer Technologies and Information Sciences