RTSL: a Ray Tracing Shading Language
SCI Institute, University of Utah, Salt Lake City
IEEE Symposium on Interactive Ray Tracing, 2007. RT ’07
@inproceedings{parker2007rtsl,
title={RTSL: a Ray Tracing Shading Language},
author={Parker, S.G. and Boulos, S. and Bigler, J. and Robison, A.},
booktitle={IEEE Symposium on Interactive Ray Tracing},
volume={4},
number={6},
year={2007},
organization={Citeseer}
}
We present a new domain-specific programming language suitable for extending both interactive and non-interactive ray tracing systems. This language, called ldquoray tracing shading languagerdquo (RTSL), builds on the GLSL language that is a part of the OpenGL specification and familiar to GPU programmers. This language allows a programmer to implement new cameras, primitives, textures, lights, and materials that can be used in multiple rendering systems. RTSL presents a single-ray interface that is easy to program for novice programmers. Through an advanced compiler, packet- based SIMD-optimized code can be generated that is performance competitive with hand-optimized code. This language and compiler combination allows sophisticated primitives, materials and textures to realize the performance gains possible by SIMD and ray packets without the low-level programming burden. In addition to the packet-based Manta system, the compiler targets two additional rendering systems to exercise this flexibility: the PBRT system and the batch Monte Carlo renderer Galileo.
July 20, 2011 by hgpu
