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Direct Volume Rendering of Curvilinear Volumes (1998)

Kutler, Paul ; Challinger, J. ; Wilhelms, J. ; [et al.]

In: Other Sources

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Publication Date: 2019-07-18

Description: Direct volume rendering can visualize sampled 3D scalar data as a continuous medium, or extract features. However, it is generally slow. Furthermore, most algorithms for direct volume rendering have assumed rectilinear gridded data. This paper discusses methods for using direct volume rendering when the original volume is curvilinear, i.e. is divided into six-sided cells which are not necessarily equilateral hexahedra. One approach is to ray-cast such volumes directly. An alternative approach is to interpolate the sample volumes to a rectilinear grid, and use this regular volume for rendering. Advantages and disadvantages of the two approaches in terms of speed and image quality are explored.

Keywords: Numerical Analysis

Type: RNR-90-016

Format: text

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