Automatic Stream Surface Seeding: A Feature Centered Approach
Computer Graphics Forum
Multi-layer illustrative dense flow visualization
Computer Graphics Forum
Technical Section: Surface-based flow visualization
Computers and Graphics
Streamlines for illustrative real-time rendering
EuroVis '13 Proceedings of the 15th Eurographics Conference on Visualization
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Integral surfaces are ideal tools to illustrate vector fields and fluid flow structures. However, these surfaces can be visually complex and exhibit difficult geometric properties, owing to strong stretching, shearing and folding of the flow from which they are derived. Many techniques for non-photorealistic rendering have been presented previously. It is, however, unclear how these techniques can be applied to integral surfaces. In this paper, we examine how transparency and texturing techniques can be used with integral surfaces to convey both shape and directional information. We present a rendering pipeline that combines these techniques aimed at faithfully and accurately representing integral surfaces while improving visualization insight. The presented pipeline is implemented directly on the GPU, providing real-time interaction for all rendering modes, and does not require expensive preprocessing of integral surfaces after computation.