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Research Article | Open Access

Temporal and spatial anti-aliasing for rendering reflections on water waves

Hokkaido University, Sapporo, 060-0814, Japan
University of California, Davis, 95616, USA
Wakayama University, Wakayama, 640-8441, Japan
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Abstract

The reflection of a bright light source on a dynamic surface such as water with waves can be difficult to render well in real time due to reflection aliasing and flickering. In this paper, we propose a solution to this problem by approximating the reflection direction distribution for the water surface as an elliptical Gaussian distribution. Then we analytically integrate the reflection contribution throughout the rendering interval time. Our method can render in real time an animation of the time integrated reflection of a spherical light source on highly dynamic waves with reduced aliasing and flickering.

Keywords

real-time renderinganti-aliasingreflection;water surfacewater waveselliptical Gaussian

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Computational Visual Media
Volume 7 Issue 2,
June 2021
Pages 201-215
DOI: 10.1007/s41095-021-0204-1

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Cite this article:
Podee N, Max N, Iwasaki K, et al. Temporal and spatial anti-aliasing for rendering reflections on water waves. Computational Visual Media, 2021, 7(2): 201-215. https://doi.org/10.1007/s41095-021-0204-1

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Received: 02 November 2020
Accepted: 07 January 2021
Published: 03 March 2021
© The Author(s) 2021

This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduc-tion in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.

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To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Other papers from this open access journal are available free of charge from http://www.springer.com/journal/41095. To submit a manuscript, please go to https://www. editorialmanager.com/cvmj.