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Wind projection basis for real-time animation of trees.

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Title: Wind projection basis for real-time animation of trees.
Authors: Diener, Julien1, Rodriguez, Mathieu2,3, Baboud, Lionel1, Reveret, Lionel1
Source: Computer Graphics Forum. Apr2009, Vol. 28 Issue 2, p533-540. 8p. 3 Color Photographs, 6 Diagrams, 2 Charts.
Subjects: Computer-aided imagery software, Trees, Winds, Computer graphics software, Computer graphics research, Computer software
Abstract: This paper presents a real-time method to animate complex scenes of thousands of trees under a user-controllable wind load. Firstly, modal analysis is applied to extract the main modes of deformation from the mechanical model of a 3D tree. The novelty of our contribution is to precompute a new basis of the modal stress of the tree under wind load. At runtime, this basis allows to replace the modal projection of the external forces by a direct mapping for any directional wind. We show that this approach can be efficiently implemented on graphics hardware. This modal animation can be simulated at low computation cost even for large scenes containing thousands of trees. [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.)
Database: Engineering Source
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DbLabel: Engineering Source
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Wind projection basis for real-time animation of trees.
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  Data: <searchLink fieldCode="AR" term="%22Diener%2C+Julien%22">Diener, Julien</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rodriguez%2C+Mathieu%22">Rodriguez, Mathieu</searchLink><relatesTo>2,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Baboud%2C+Lionel%22">Baboud, Lionel</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Reveret%2C+Lionel%22">Reveret, Lionel</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Computer+Graphics+Forum%22">Computer Graphics Forum</searchLink>. Apr2009, Vol. 28 Issue 2, p533-540. 8p. 3 Color Photographs, 6 Diagrams, 2 Charts.
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  Data: <searchLink fieldCode="DE" term="%22Computer-aided+imagery+software%22">Computer-aided imagery software</searchLink><br /><searchLink fieldCode="DE" term="%22Trees%22">Trees</searchLink><br /><searchLink fieldCode="DE" term="%22Winds%22">Winds</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+graphics+software%22">Computer graphics software</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+graphics+research%22">Computer graphics research</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+software%22">Computer software</searchLink>
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  Label: Abstract
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  Data: This paper presents a real-time method to animate complex scenes of thousands of trees under a user-controllable wind load. Firstly, modal analysis is applied to extract the main modes of deformation from the mechanical model of a 3D tree. The novelty of our contribution is to precompute a new basis of the modal stress of the tree under wind load. At runtime, this basis allows to replace the modal projection of the external forces by a direct mapping for any directional wind. We show that this approach can be efficiently implemented on graphics hardware. This modal animation can be simulated at low computation cost even for large scenes containing thousands of trees. [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/j.1467-8659.2009.01393.x
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      – Code: eng
        Text: English
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        PageCount: 8
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      – SubjectFull: Computer-aided imagery software
        Type: general
      – SubjectFull: Trees
        Type: general
      – SubjectFull: Winds
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      – SubjectFull: Computer graphics software
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              M: 04
              Text: Apr2009
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              Y: 2009
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