Neural Local Inter-reflection Modeling for Garment Fold Rendering

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dc.contributor.authorSon, Jooeun
dc.contributor.authorRyu, Nuri
dc.contributor.authorKim, Gyoonseo
dc.contributor.authorLee, Joo Ho
dc.contributor.authorLee, Seungyong
dc.contributor.editorMasia, Belen
dc.contributor.editorThies, Justus
dc.date.accessioned2026-04-20T14:02:01Z
dc.date.available2026-04-20T14:02:01Z
dc.date.issued2026
dc.description.abstractRealistic garment rendering requires simulating complex multi-bounce light paths within intricate fold geometries. In these regions, conventional path tracing is computationally expensive as light becomes trapped, necessitating high bounce counts for convergence. We observe that these local inter-reflections are highly localized and exhibit radiance patterns strongly correlated with local fold shapes. Based on these insights, we propose a neural local inter-reflection model that factorizes light transport into overall intensity and directional distribution. By learning the relationship between incident light, material properties, and a novel fold shape descriptor, our model approximates multi-bounce effects using a compact Spherical Harmonics representation. Our approach demonstrates strong generalization to unseen geometries and various fabric textures without retraining. Compared to full path tracing, our method significantly reduces rendering time while preserving high visual fidelity.
dc.description.number2
dc.description.sectionheadersNeural Appearance: Reflectance, Irradiance, and Light Transport
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume45
dc.identifier.doi10.1111/cgf.70348
dc.identifier.issn1467-8659
dc.identifier.pages14 pages
dc.identifier.urihttps://doi.org/10.1111/cgf.70348
dc.identifier.urihttps://diglib.eg.org/handle/10.1111/cgf70348
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.
dc.rightsCC-BY-4.0
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectComputing methodologies → Rendering
dc.subjectCCS Concepts
dc.titleNeural Local Inter-reflection Modeling for Garment Fold Rendering
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