Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/15626
Title: Physically based animation and fast rendering of large-scale prairie
Authors: ZHANG XIA
Keywords: realistic animation and fast rendering
Issue Date: 9-Nov-2006
Source: ZHANG XIA (2006-11-09). Physically based animation and fast rendering of large-scale prairie. ScholarBank@NUS Repository.
Abstract: The realism of a real time 3D scene depends not only on the complexity of the scene, but also on the realistic animation of the objects within the scene. This project presents an integrated system for animating and rendering a real time and realistic large-scale prairie. Animating a scene requires precise calculations on the exact movement of the 3D objects. However, real time and realism are usually two conflicting objectives and thus this report also employs a series of methods for reducing computational load and yet maintains its realism. By using physical equations such as fluid dynamic equations, we are able to render the realistic animation of plants under the influence of wind movement. Grasses in the prairie are rendered either as a single blade, or as a billboard, depending on the distance of the grass from the viewpoint. Furthermore, the sequence of the grasses being rendered is also determined by using two sorting algorithm, quick sorting and pre-computed sorting. Each grass grid is uniquely rendered by varying its terrain height and the inclusion of empty patches. To improve on the performance of the rendering, view-frustum culling is used to determine the visibility of each blade of grass. In general, our output fulfills these two constraints of both real time and realism.
URI: http://scholarbank.nus.edu.sg/handle/10635/15626
Appears in Collections:Master's Theses (Open)

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