While ray tracing has become increasingly common and path tracing is well understood by now, a major challenge lies in crafting an easy-to-use and efficient system implementing these technologies. Following a purely physically-based paradigm while still allowing for artistic workflows, the Iray light transport simulation and rendering system allows for rendering complex scenes by the push of a button and thus makes accurate light transport simulation widely available. In this document we discuss the challenges and implementation choices that follow from our primary design decisions, demonstrating that such a rendering system can be made a practical, scalable, and efficient real-world application that has been adopted by various companies across many fields and is in use by many industry professionals today.
@article{arxiv.1705.01263,
title = {The Iray Light Transport Simulation and Rendering System},
author = {Alexander Keller and Carsten Wächter and Matthias Raab and Daniel Seibert and Dietger van Antwerpen and Johann Korndörfer and Lutz Kettner},
journal= {arXiv preprint arXiv:1705.01263},
year = {2017}
}