Animating flowfields: Rendering of oriented line integral convolution

Line Integral Convolution (LIC) is a common ap-proach for the visualization of 2 0 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 b y using a sparse input texture and a ramp like (anisotropic) convolution kernel. This method can be used for animations, whe,reby the com-putation of so called pixel traces fastens the calculation process. In the result section various OLICs illustrat-ing simple and real-world vector fields are shown.