Title: Hardware accelerated point rendering of isosurfaces
Authors: Bærentzen, J. Andreas
Christensen, Niels Jørgen
Citation: Journal of WSCG. 2003, vol. 11, no. 1-3.
Issue Date: 2003
Publisher: UNION Agency – Science Press
Document type: článek
URI: http://wscg.zcu.cz/wscg2003/Papers_2003/J61.pdf
ISSN: 1213-6972
Keywords: vizualizace;vykreslování;grafický hardware;povrch;objem
Keywords in different language: visualization;rendering;graphic hardware;surface;volume
Abstract: Interactive volume sculpting and volume editing often employ surface based visualization techniques, and interactive applications require fast generation and rendering of surface primitives. In this paper, we revisit point primitives as an alternative to triangle primitives. We propose an approximate technique for point scaling using distance attenuation which makes it possible to render points stored in display lists or vertex arrays. This enables us to render points quickly using OpenGL. Our comparisons show that point generation is significantly faster than triangle generation and that the advantage of rendering points as opposed to triangles increases with the size and complexity of the volumes. To gauge the visual quality of future hardware accelerated point rendering schemes, we have implemented a software based point rendering method and compare the quality to both MC and our OpenGL based technique.
Rights: © UNION Agency – Science Press
Appears in Collections:Volume 11, number 1-3 (2003)

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Please use this identifier to cite or link to this item: http://hdl.handle.net/11025/1652

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