Real‐Time Rendering of Glinty Appearances using Distributed Binomial Laws on Anisotropic Grids

In this work, we render in real‐time glittery materials caused by discrete flakes on the surface. To achieve this, one has to count the number of flakes reflecting the light towards the camera within every texel covered by a given pixel footprint. To do so, we derive a counting method for arbitrary...

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Bibliographic Details
Published in:Computer graphics forum Vol. 42; no. 8
Main Authors: Deliot, T., Belcour, L.
Format: Journal Article
Language:English
Published: Oxford Blackwell Publishing Ltd 01.12.2023
Subjects:
Flakes
Footprints
Parameterization
Pixels
ISSN:0167-7055, 1467-8659
Online Access:Get full text
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Summary:In this work, we render in real‐time glittery materials caused by discrete flakes on the surface. To achieve this, one has to count the number of flakes reflecting the light towards the camera within every texel covered by a given pixel footprint. To do so, we derive a counting method for arbitrary footprints that, unlike previous work, outputs the correct statistics. We combine this counting method with an anisotropic parameterization of the texture space that reduces the number of texels falling under a pixel footprint. This allows our method to run with both stable performance and 1.5× to 5× faster than the state‐of‐the‐art.
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ISSN:0167-7055
1467-8659
DOI:10.1111/cgf.14866