Feature-based Volume Rendering of Simulation Data

In this paper we present a framework for interactive volume rendering of high-dimensional flow simulation data. Our approach combines information visualization, flow visualization, as well as volume visualization techniques for volumetric flow visualization. Interactive feature specification by use of multiple linked views and composite non-binary brushes enables selection and multiple definition of volumetric features. Further, two-level volume rendering is employed in order to depict the desired flow structures in a focus-plus-context style showing the features in detail, while the remaining data is rendered either semi-transparently or contour-like, allowing the user a full overview of the data set.