Real-Time Rendering of Old Glass Panes

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dc.contributor.authorJosse, Alexanderen_US
dc.contributor.authorHuan, Quentinen_US
dc.contributor.authorRousselle, Françoisen_US
dc.contributor.authorRenaud, Christopheen_US
dc.contributor.editorCampana, Stefanoen_US
dc.contributor.editorFerdani, Danieleen_US
dc.contributor.editorGraf, Holgeren_US
dc.contributor.editorGuidi, Gabrieleen_US
dc.contributor.editorHegarty, Zackaryen_US
dc.contributor.editorPescarin, Sofiaen_US
dc.contributor.editorRemondino, Fabioen_US
dc.date.accessioned2025-09-05T20:34:39Z
dc.date.available2025-09-05T20:34:39Z
dc.date.issued2025
dc.description.abstractMany cultural heritage projects involve the 3D reconstruction of old glass buildings. Old glass, however, has many defects, due to the artisanal manufacturing techniques of the time, such as crown or cylinder blowing. The presence of these defects has a number of visual consequences, manifesting itself in the deviation of light passing through or reflecting off the glass panes. The appearance of these old glasses, the lighting produced through their surface, and the vision of the world perceived through them, is thus very different from what is perceived through contemporary industrial glass, and therefore has a considerable impact on the rendering that will be produced in their presence. However, setting up interactive virtual tours that take into account these old glasses is proving complex, as the materials available in commercial 3D rendering engines are unable to faithfully reproduce the lighting effects produced. In this paper, we propose a precise, real-time rendering of the surface and volume defects (bubbles, chords) present in some old glass and their impact on the appearance of the world perceived through these panes. Our approach is based on ray tracing, which not only interacts with the material's geometric defects, but also takes into account the curvature of light as the glass's refractive index varies.en_US
dc.description.sectionheadersVisual Archives and Historical Imagery in VR
dc.description.seriesinformationDigital Heritage
dc.identifier.doi10.2312/dh.20253142
dc.identifier.isbn978-3-03868-277-6
dc.identifier.pages10 pages
dc.identifier.urihttps://doi.org/10.2312/dh.20253142
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/dh20253142
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Computing methodologies->Computer graphics; Rendering; Volumetric models; Ray tracing; Applied computing->Media arts
dc.subjectComputing methodologies
dc.subjectComputer graphics
dc.subjectRendering
dc.subjectVolumetric models
dc.subjectRay tracing
dc.subjectApplied computing
dc.subjectMedia arts
dc.titleReal-Time Rendering of Old Glass Panesen_US
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