Real-Time Underwater Spectral Rendering
Monzón, Néstor (Universidad de Zaragoza) ; Gutierrez, Diego (Universidad de Zaragoza) ; Akkaynak, Derya ; Muñoz, Adolfo (Universidad de Zaragoza)
Resumen: The light field in an underwater environment is characterized by complex multiple scattering interactions and wavelength‐dependent attenuation, requiring significant computational resources for the simulation of underwater scenes. We present a novel approach that makes it possible to simulate multi‐spectral underwater scenes, in a physically‐based manner, in real time. Our key observation is the following: In the vertical direction, the steady decay in irradiance as a function of depth is characterized by the diffuse downwelling attenuation coefficient, which oceanographers routinely measure for different types of waters. We rely on a database of such real‐world measurements to obtain an analytical approximation to the Radiative Transfer Equation, allowing for real‐time spectral rendering with results comparable to Monte Carlo ground‐truth references, in a fraction of the time. We show results simulating underwater appearance for the different optical water types, including volumetric shadows and dynamic, spatially varying lighting near the water surface.
Idioma: Inglés
DOI: 10.1111/cgf.15009
Año: 2024
Publicado en: Computer Graphics Forum (2024), 11 pp.
ISSN: 0167-7055
Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2022-141539NB-I00
Financiación: info:eu-repo/grantAgreement/ES/MCIN/AEI/10.13039/501100011033
Tipo y forma: Article (Published version)
Área (Departamento): Área Lenguajes y Sistemas Inf. (Dpto. Informát.Ingenie.Sistms.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes.
Exportado de SIDERAL (2024-05-22-10:17:43)
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Idioma: Inglés
DOI: 10.1111/cgf.15009
Año: 2024
Publicado en: Computer Graphics Forum (2024), 11 pp.
ISSN: 0167-7055
Financiación: info:eu-repo/grantAgreement/ES/AEI/PID2022-141539NB-I00
Financiación: info:eu-repo/grantAgreement/ES/MCIN/AEI/10.13039/501100011033
Tipo y forma: Article (Published version)
Área (Departamento): Área Lenguajes y Sistemas Inf. (Dpto. Informát.Ingenie.Sistms.)
You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. Exportado de SIDERAL (2024-05-22-10:17:43)
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Record created 2024-05-22, last modified 2024-05-22