2000•Communications of the ACMOpen access
Modeling water for computer animation
Nick Foster, Dimitris Metaxas
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Abstract
The article focuses on cognitive modeling for games and animation <!--[if gte mso 9]> Biblioteca de Ciencias y Tecnología Normal Biblioteca de Ciencias y Tecnología 2 10 2006-05-25T22:41:00Z 2006-05-25T22:41:00Z 1 169 931 UCLA 7 2 1098 11.6568 <![endif]--><!--[if gte mso 9]> Clean Clean 21 false false false MicrosoftInternetExplorer4 <![endif]--><!--[if gte mso 9]> <![endif]--> <!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-parent:""; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:"Times New Roman"; mso-fareast-font-family:"Times New Roman";} @page Section1 {size:595.3pt 841.9pt; margin:70.85pt 3.0cm 70.85pt 3.0cm; mso-header-margin:35.4pt; mso-footer-margin:35.4pt; mso-paper-source:0;} div.Section1 {page:Section1;} --> <!--[if gte mso 10]> /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} <![endif]--> The article focuses on modeling water for computer animation. An ongoing goal for computer graphics is to provide tools not only for the artistic rendition of our physical world but for re-creating as much of our world in as realistic a way as possible. The reasons for wanting greater physical realism vary depending on the application. Modeling physics on a computer and visualizing the results using graphics techniques can lead to complex pictures as dazzling as the real-world phenomena they are intended to represent, especially for such fluid effects as the motion of water, fire, and smoke. Mechanical engineers and physicists have been modeling the behavior of liquids on computers for nearly 40 years. A pragmatic approach to the problem of water simulation is described in this article. The system for modeling and animating the interaction between realistic-looking water and a computer graphics environment described in this article, draws on the science of computational fluid dynamics to calculate an approximate velocity field describing the time-varying motion of a volume of water.
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