University of Kaiserslautern.
IEEE Trans Vis Comput Graph. 2010 Nov-Dec;16(6):1319-28. doi: 10.1109/TVCG.2010.173.
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.
积分曲面是展示向量场和流场结构的理想工具。然而，这些曲面可能由于源自流场的强烈拉伸、剪切和折叠，在视觉上呈现出复杂且具有挑战性的几何性质。先前已经提出了许多非真实感渲染技术。然而，目前尚不清楚如何将这些技术应用于积分曲面。在本文中，我们研究了如何将透明度和纹理技术与积分曲面结合使用，以传达形状和方向信息。我们提出了一个渲染管道，该管道结合了这些技术，旨在在提高可视化效果的同时忠实地、准确地表示积分曲面。所提出的管道直接在 GPU 上实现，为所有渲染模式提供实时交互，并且不需要在计算后对面进行昂贵的预处理。
