Neural Histogram-Based Glint Rendering of Surfaces With Spatially Varying Roughness

Simple item page
dc.contributor.authorShah, Ishaanen_US
dc.contributor.authorGamboa, Luis E.en_US
dc.contributor.authorGruson, Adrienen_US
dc.contributor.authorNarayanan, P. J.en_US
dc.contributor.editorGarces, Elenaen_US
dc.contributor.editorHaines, Ericen_US
dc.date.accessioned2024-06-25T10:20:15Z
dc.date.available2024-06-25T10:20:15Z
dc.date.issued2024
dc.description.abstractThe complex, glinty appearance of detailed normal-mapped surfaces at different scales requires expensive per-pixel Normal Distribution Function computations. Moreover, large light sources further compound this integration and increase the noise in the Monte Carlo renderer. Specialized rendering techniques that explicitly express the underlying normal distribution have been developed to improve performance for glinty surfaces controlled by a fixed material roughness. We present a new method that supports spatially varying roughness based on a neural histogram that computes per-pixel NDFs with arbitrary positions and sizes. Our representation is both memory and compute efficient. Additionally, we fully integrate direct illumination for all light directions in constant time. Our approach decouples roughness and normal distribution, allowing the live editing of the spatially varying roughness of complex normal-mapped objects. We demonstrate that our approach improves on previous work by achieving smaller footprints while offering GPU-friendly computation and compact representation.en_US
dc.description.number4
dc.description.sectionheadersNeural Rendering
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume43
dc.identifier.doi10.1111/cgf.15157
dc.identifier.issn1467-8659
dc.identifier.pages12 pages
dc.identifier.urihttps://doi.org/10.1111/cgf.15157
dc.identifier.urihttps://diglib.eg.org/handle/10.1111/cgf15157
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.titleNeural Histogram-Based Glint Rendering of Surfaces With Spatially Varying Roughnessen_US
Files
Original bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
v43i4_13_cgf15157.pdf
Size:
126.46 MB
Format:
Adobe Portable Document Format
Download
Collections
43-Issue 4