A Wave-optics BSDF for Correlated Scatterers

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dc.contributor.authorYang, Ruomaien_US
dc.contributor.authorKim, Juhyeonen_US
dc.contributor.authorPediredla, Adithyaen_US
dc.contributor.authorJarosz, Wojciechen_US
dc.contributor.editorWang, Beibeien_US
dc.contributor.editorWilkie, Alexanderen_US
dc.date.accessioned2025-06-20T07:53:20Z
dc.date.available2025-06-20T07:53:20Z
dc.date.issued2025
dc.description.abstractWe present a wave-optics-based BSDF for simulating the corona effect observed when viewing strong light sources through materials such as certain fabrics or glass surfaces with condensation. These visual phenomena arise from the interference of diffraction patterns caused by correlated, disordered arrangements of droplets or pores. Our method leverages the pair correlation function (PCF) to decouple the spatial relationships between scatterers from the diffraction behavior of individual scatterers. This two-level decomposition allows us to derive a physically based BSDF that provides explicit control over both scatterer shape and spatial correlation. We also introduce a practical importance sampling strategy for integrating our BSDF within a Monte Carlo renderer. Our simulation results and real-world comparisons demonstrate that the method can reliably reproduce the characteristics of the corona effects in various real-world diffractive materials.en_US
dc.description.number4
dc.description.sectionheadersBSDF Models and Scattering
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume44
dc.identifier.doi10.1111/cgf.70167
dc.identifier.issn1467-8659
dc.identifier.pages13 pages
dc.identifier.urihttps://doi.org/10.1111/cgf.70167
dc.identifier.urihttps://diglib.eg.org/handle/10.1111/cgf70167
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Computing methodologies → Reflectance modeling; Ray tracing; Mathematics of computing → Stochastic processes
dc.subjectComputing methodologies → Reflectance modeling
dc.subjectRay tracing
dc.subjectMathematics of computing → Stochastic processes
dc.titleA Wave-optics BSDF for Correlated Scatterersen_US
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