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Procedural Cloudscapes.

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Bibliographic Details
Title: Procedural Cloudscapes.
Authors: Webanck, A.1, Cortial, Y.2, Guérin, E.2, Galin, E.1
Source: Computer Graphics Forum. May2018, Vol. 37 Issue 2, p431-442. 12p. 5 Color Photographs, 12 Diagrams, 4 Charts.
Subjects: PL/SQL (Computer program language), Computers in meteorology, Animation (Cinematography), Motion capture (Cinematography), Interpolation
Abstract: Abstract: We present a phenomenological approach for modeling and animating cloudscapes. We propose a compact procedural model for representing the different types of cloud over a range of altitudes. We define primitive‐based field functions that allow the user to control and author the cloud cover over large distances easily. Our approach allows us to animate cloudscapes by morphing: instead of simulating the evolution of clouds using a physically‐based simulation, we compute the movement of clouds using key‐frame interpolation and tackle the morphing problem as an Optimal Transport problem. The trajectories of the cloud cover primitives are generated by solving an Anisotropic Shortest Path problem with a cost function that takes into account the elevation of the terrain and the parameters of the wind field. [ABSTRACT FROM AUTHOR]
Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Procedural Cloudscapes.
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  Data: <searchLink fieldCode="JN" term="%22Computer+Graphics+Forum%22">Computer Graphics Forum</searchLink>. May2018, Vol. 37 Issue 2, p431-442. 12p. 5 Color Photographs, 12 Diagrams, 4 Charts.
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  Data: <searchLink fieldCode="DE" term="%22PL%2FSQL+%28Computer+program+language%29%22">PL/SQL (Computer program language)</searchLink><br /><searchLink fieldCode="DE" term="%22Computers+in+meteorology%22">Computers in meteorology</searchLink><br /><searchLink fieldCode="DE" term="%22Animation+%28Cinematography%29%22">Animation (Cinematography)</searchLink><br /><searchLink fieldCode="DE" term="%22Motion+capture+%28Cinematography%29%22">Motion capture (Cinematography)</searchLink><br /><searchLink fieldCode="DE" term="%22Interpolation%22">Interpolation</searchLink>
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  Data: Abstract: We present a phenomenological approach for modeling and animating cloudscapes. We propose a compact procedural model for representing the different types of cloud over a range of altitudes. We define primitive‐based field functions that allow the user to control and author the cloud cover over large distances easily. Our approach allows us to animate cloudscapes by morphing: instead of simulating the evolution of clouds using a physically‐based simulation, we compute the movement of clouds using key‐frame interpolation and tackle the morphing problem as an Optimal Transport problem. The trajectories of the cloud cover primitives are generated by solving an Anisotropic Shortest Path problem with a cost function that takes into account the elevation of the terrain and the parameters of the wind field. [ABSTRACT FROM AUTHOR]
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  Data: <i>Copyright of Computer Graphics Forum is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/cgf.13373
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        Text: English
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        PageCount: 12
        StartPage: 431
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      – SubjectFull: PL/SQL (Computer program language)
        Type: general
      – SubjectFull: Computers in meteorology
        Type: general
      – SubjectFull: Animation (Cinematography)
        Type: general
      – SubjectFull: Motion capture (Cinematography)
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      – SubjectFull: Interpolation
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      – TitleFull: Procedural Cloudscapes.
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              M: 05
              Text: May2018
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