Animating Flowwelds: Rendering of Oriented Line Integral Convolution

Line Integral Convolution (LIC) is a common approach for the visualization of vector elds. It is well suited for visualizing the direction of a ow eld, 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 low frequency input texture and a ramp like (unisotropic) convolution kernel. This method can be animated, whereby the computation of so called pixel traces fastens the calculation process. In the result section various OLICs using simple and real-world vector elds are shown.