Efficient Virtual Shadow Maps for Many Lights
Chalmers University of Technology
ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, 2014
@phdthesis{olsson2014real,
title={Real-Time Shading and Accurate Shadows Using GPGPU Techniques},
author={Olsson, Ola},
year={2014},
school={Chalmers University of Technology}
}
Recently, several algorithms have been introduced that enable real-time performance for many lights in applications such as games. In this paper, we explore the use of hardware-supported virtual cube-map shadows to efficiently implement high-quality shadows from hundreds of light sources in real time and within a bounded memory footprint. In addition, we explore the utility of ray tracing for shadows from many lights and present a hybrid algorithm combining ray tracing with cube maps to exploit their respective strengths. Our solution supports real-time performance with hundreds of lights in fully dynamic high-detail scenes.
February 2, 2014 by hgpu
