Abstract
We provide a numerical approach to compute oriented bounding boxes (OBBs) and a robust method to perform ray/OBB intersection based on the Lorentz transform. We also show how to compute additional intersection information (normal, face ID, and UV coordinates). Adopting OBBs instead of AABBs in a bounding volume hierarchy results in a significant reduction of traversal steps.
This is a preview of subscription content, log in via an institution to check access.
Preview
Unable to display preview. Download preview PDF.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits any noncommercial use, sharing, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if you modified the licensed material. You do not have permission under this license to share adapted material derived from this chapter or parts of it.
The images or other third party material in this chapter are included in the chapter’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the chapter’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder.
Copyright information
© 2021 NVIDIA
About this chapter
Cite this chapter
Sabino, R., Augusto Vidal, C., Bento Cavalcante-Neto, J., Rodrigues Maia, J. (2021). Fast and Robust Ray/OBB Intersection Using the Lorentz Transformation. In: Marrs, A., Shirley, P., Wald, I. (eds) Ray Tracing Gems II. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4842-7185-8_32
Download citation
DOI: https://doi.org/10.1007/978-1-4842-7185-8_32
Publisher Name: Apress, Berkeley, CA
Print ISBN: 978-1-4842-7184-1
Online ISBN: 978-1-4842-7185-8
eBook Packages: Professional and Applied ComputingProfessional and Applied Computing (R0)Apress Access Books