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DTSTAMP:20260817T171530Z
LOCATION:Hall B5 (2)\, B Block\, Level 5
DTSTART;TZID=Asia/Tokyo:20241205T135800
DTEND;TZID=Asia/Tokyo:20241205T140900
UID:siggraphasia_SIGGRAPH Asia 2024_sess131_papers_300@linklings.com
SUMMARY:A Generalized Ray Formulation For Wave-Optical Light Transport
DESCRIPTION:Shlomi Steinberg (University of Waterloo); Ravi Ramamoorthi (N
 VIDIA, University of California San Diego); Benedikt Bitterli and Eugene d
 'Eon (NVIDIA); Ling-Qi Yan (University of California Santa Barbara); and M
 att Pharr (NVIDIA)\n\nRay optics is the foundation of modern path tracing 
 and sampling algorithms for computer graphics; crucially, it allows high-p
 erformance implementations based on ray tracing. However, many application
 s of interest in computer graphics and computational optics demand a more 
 precise understanding of light: as waves. For example, accurately modeling
  scattering effects like diffraction or interference requires a model that
  provides the coherence of light waves arriving at surfaces. While recent 
 work in Physical Light Transport [Steinberg et al. 2022; Steinberg and Yan
  2021] has introduced such a model, it requires tracing light paths starti
 ng from the light sources, which is generally less efficient than tracing 
 them starting from the sensor and does not allow the use of many effective
  importance sampling techniques.\n\nWe introduce a new model for wave opti
 cal light transport that is based on the fact that sensors aggregate the m
 easurement of many light waves when capturing an image. This allows us to 
 compactly represent the statistics of light waves in a generalized ray. Ge
 neralized rays allow sampling light paths starting from the sensor and app
 lying sophisticated path tracing sampling techniques while still accuratel
 y modeling the wave nature of light. Our model is computationally efficien
 t and straightforward to add to an existing path tracer; this offers the p
 rospect of wave optics becoming the foundation of most renderers in the fu
 ture. Using our model, we show that it is possible to render complex scene
 s under wave optics with high performance, which has not been possible wit
 h any existing method.\n\nRegistration Category: Full Access, Full Access 
 Supporter\n\nLanguage Format: English Language\n\nSession Chair: Seungyong
  Lee (POSTECH)\n\n
URL:https://asia.siggraph.org/2024/program/?id=papers_300&sess=sess131
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