1. [Publications](/publications)
2. The Iray Light Transport Simulation and Rendering System
 
 # The Iray Light Transport Simulation and Rendering System

  ![](/sites/default/files/styles/wide/public/pubs/2017-05_The-Iray-Light/default.jpg?itok=OQRRXq-y)

 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.



 ## Authors



[Alex Keller](/person/alex-keller)

Carsten Wächter (NVIDIA)

Matthias Raab (NVIDIA)

Daniel Seibert (NVIDIA)

Dietger van Antwerpen, Johann Korndörfer, Lutz Kettner (NVIDIA)

 

 

 ## Publication Date



Wednesday, May 3, 2017

 

 ## Published in



[arXiv](https://arxiv.org/abs/1705.01263)

 

 ## Research Area



[Algorithms and Numerical Methods](/research-area/algorithms)

[Computer Graphics](/research-area/computer-graphics)

[High Performance Computing](/research-area/high-performance-computing)

[Real-Time Rendering](/research-area/real-time-rendering)