CPU-Style SIMD Ray Traversal on GPUs

Lier A, Stamminger M, Selgrad K (2018)

Publication Language: English

Publication Type: Conference contribution, Original article

Publication year: 2018

Conference Proceedings Title: HPG '18 Proceedings of the Conference on High-Performance Graphics

Event location: Vancouver CA

ISBN: 978-1-4503-5896-5

DOI: 10.1145/3231578.3231583

Abstract

In this paper we describe and evaluate an implementation of CPU-style SIMD ray traversal on the GPU. We show how spreading moderately wide BVHs (up to a branching factor of eight) across multiple threads in a warp can improve performance while not requiring expensive pre-processing. The presented ray-traversal method exhibits improved traversal performance especially for increasingly incoherent rays.

Authors with CRIS profile

Alexander Lier Chair of Visual Computing (LGDV) Marc Stamminger Chair of Visual Computing (LGDV)

Related research project(s)

Advanced Raytracing Jan. 1, 2013 - Jan. 1, 2016

How to cite

APA:

Lier, A., Stamminger, M., & Selgrad, K. (2018). CPU-Style SIMD Ray Traversal on GPUs. In ACM New York, NY, USA (Eds.), HPG '18 Proceedings of the Conference on High-Performance Graphics. Vancouver, CA.

MLA:

Lier, Alexander, Marc Stamminger, and Kai Selgrad. "CPU-Style SIMD Ray Traversal on GPUs." Proceedings of the High-Performance Graphics 2018, Vancouver Ed. ACM New York, NY, USA, 2018.

BibTeX: Download