Animating flow fields: rendering of oriented line integral convolution

R. Wegenkittl, E. Gröller, W. Purgathofer
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引用次数: 127

Abstract

Line Integral Convolution (LIC) is a common approach for the visualisation of 2D vector fields. It is well suited for visualizing the direction of a flow field, but it gives no information about the orientation of the underlying vectors. We introduce Oriented Line Integral Convolution (OLIC), where direction as well as orientation are encoded within the resulting image. This is achieved by using a sparse input texture and a ramp like (anisotropic) convolution kernel. This method can be used for animations, whereby the computation of so called pixel traces fastens the calculation process. Various OLICs illustrating simple and real world vector fields are shown.
动画流场:渲染有方向的线积分卷积
线积分卷积(LIC)是一种用于二维矢量场可视化的常用方法。它非常适合于可视化流场的方向,但它没有给出有关底层向量方向的信息。我们引入了定向线积分卷积(OLIC),其中方向和方向在生成的图像中被编码。这是通过使用一个稀疏的输入纹理和一个斜坡(各向异性)卷积核来实现的。这种方法可以用于动画,其中所谓的像素跟踪的计算加快了计算过程。显示了用于说明简单和现实世界向量场的各种olic。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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