Chameleon: An Interactive Texture-based Rendering Framework for Visualizing Three-dimensional Vector Fields

Authors:
Guo-Shi Li;Udeepta D. Bordoloi;Han-Wei Shen
Affiliations:
The Ohio State University;The Ohio State University;The Ohio State University
Venue:
Proceedings of the 14th IEEE Visualization 2003 (VIS'03)
Year:
2003

Citing 18
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Abstract

In this paper we present an interactive texture-based technique for visualizing three-dimensional vector fields. The goal of the algorithm is to provide a general volume rendering framework allowing the user to compute three-dimensional flow textures interactively, and to modify the appearance of the visualization on the fly. To achieve our goal, we decouple the visualization pipeline into two disjoint stages. First, streamlines are generated from the 3D vector data. Various geometric properties of the streamlines are extracted and converted into a volumetric form using a hardware-assisted slice sweeping algorithm. In the second phase of the algorithm, the attributes stored in the volume are used as texture coordinates to look up an appearance texture to generate both informative and aesthetic representations of the underlying vector field. Users can change the input textures and instantaneously visualize the rendering results. With our algorithm, visualizations with enhanced structural perception using various visual cues can be rendered in real time. A myriad of existing geometry-based and texture-based visualization techniques can also be emulated.