Non-Orthogonal Reduction for Rendering Fluorescent Materials in Non-Spectral Engines
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arXiv
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| Main Authors: | , , |
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| Format: | Preprint |
| Published: |
2024
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| Subjects: | |
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| _version_ | 1866911934630068224 |
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| author | Fichet, Alban Belcour, Laurent Barla, Pascal |
| author_facet | Fichet, Alban Belcour, Laurent Barla, Pascal |
| contents | We propose a method to accurately handle fluorescence in a non-spectral (\eg, tristimulus) rendering engine, showcasing color-shifting and increased luminance effects. Core to our method is a principled reduction technique that encodes the re-radiation into a low-dimensional matrix working in the space of the renderer's Color Matching Functions (CMFs). Our process is independent of a specific CMF set and allows for the addition of a non-visible ultraviolet band during light transport. Our representation visually matches full spectral light transport for measured fluorescent materials even for challenging illuminants. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_17360 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Non-Orthogonal Reduction for Rendering Fluorescent Materials in Non-Spectral Engines Fichet, Alban Belcour, Laurent Barla, Pascal Graphics We propose a method to accurately handle fluorescence in a non-spectral (\eg, tristimulus) rendering engine, showcasing color-shifting and increased luminance effects. Core to our method is a principled reduction technique that encodes the re-radiation into a low-dimensional matrix working in the space of the renderer's Color Matching Functions (CMFs). Our process is independent of a specific CMF set and allows for the addition of a non-visible ultraviolet band during light transport. Our representation visually matches full spectral light transport for measured fluorescent materials even for challenging illuminants. |
| title | Non-Orthogonal Reduction for Rendering Fluorescent Materials in Non-Spectral Engines |
| topic | Graphics |
| url | https://arxiv.org/abs/2406.17360 |