Caustics Using Screen-Space Photon Mapping

  • Hyuk Kim
Open Access


Photon mapping is a global illumination technique for rendering caustics and indirect lighting by simulating the transportation of photons emitted from the light. This chapter introduces a technique to render caustics with photon mapping in screen space with hardware ray tracing and a screen-space denoiser in real time.

Copyright information

© NVIDIA 2019

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (, 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.

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Authors and Affiliations

  • Hyuk Kim
    • 1
  1. 1.devCAT StudioNEXON KoreaTokyoJapan

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