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DTSTAMP:20250110T023312Z
LOCATION:Hall B5 (2)\, B Block\, Level 5
DTSTART;TZID=Asia/Tokyo:20241205T135800
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UID:siggraphasia_SIGGRAPH Asia 2024_sess131_papers_300@linklings.com
SUMMARY:A Generalized Ray Formulation For Wave-Optical Light Transport
DESCRIPTION:Technical Papers\n\nShlomi Steinberg (University of Waterloo);
  Ravi Ramamoorthi (NVIDIA, University of California San Diego); Benedikt B
 itterli and Eugene d'Eon (NVIDIA); Ling-Qi Yan (University of California S
 anta Barbara); and Matt Pharr (NVIDIA)\n\nRay optics is the foundation of 
 modern path tracing and sampling algorithms for computer graphics; crucial
 ly, it allows high-performance implementations based on ray tracing. Howev
 er, many applications of interest in computer graphics and computational o
 ptics demand a more precise understanding of light: as waves. For example,
  accurately modeling scattering effects like diffraction or interference r
 equires a model that provides the coherence of light waves arriving at sur
 faces. While recent work in Physical Light Transport [Steinberg et al. 202
 2; Steinberg and Yan 2021] has introduced such a model, it requires tracin
 g light paths starting from the light sources, which is generally less eff
 icient than tracing them starting from the sensor and does not allow the u
 se of many effective importance sampling techniques.\n\nWe introduce a new
  model for wave optical light transport that is based on the fact that sen
 sors aggregate the measurement of many light waves when capturing an image
 . This allows us to compactly represent the statistics of light waves in a
  generalized ray. Generalized rays allow sampling light paths starting fro
 m the sensor and applying sophisticated path tracing sampling techniques w
 hile still accurately modeling the wave nature of light. Our model is comp
 utationally efficient and straightforward to add to an existing path trace
 r; this offers the prospect of wave optics becoming the foundation of most
  renderers in the future. Using our model, we show that it is possible to 
 render complex scenes under wave optics with high performance, which has n
 ot been possible with any existing method.\n\nRegistration Category: Full 
 Access, Full Access Supporter\n\nLanguage Format: English Language\n\nSess
 ion Chair: Seungyong Lee (POSTECH)
URL:https://asia.siggraph.org/2024/program/?id=papers_300&sess=sess131
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