Point-Based Rendering of Non-Manifold Surfaces

We are concerned with producing high‐quality images of parametric and implicit surfaces, in particular those with non‐manifold features. We present a point‐based technique for rendering implicit surfaces that uses octree spatial subdivision with a natural interval exclusion test that guarantees that...

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Bibliographic Details
Published in:Computer graphics forum Vol. 27; no. 1; pp. 63 - 72
Main Authors: Balsys, Ron J., Suffern, K. G., Jones, Huw
Format: Journal Article
Language:English
Published: Oxford, UK Blackwell Publishing Ltd 01.03.2008
Subjects:
Computer graphics
I.3.3 [Computer Graphics] Display algorithms
intervals
non-manifold surface
octrees
point rendering
Studies
ISSN:0167-7055, 1467-8659
Online Access:Get full text
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Summary:We are concerned with producing high‐quality images of parametric and implicit surfaces, in particular those with non‐manifold features. We present a point‐based technique for rendering implicit surfaces that uses octree spatial subdivision with a natural interval exclusion test that guarantees that no parts of the surface are missed. This allows us to render non‐manifold implicit surfaces at speeds comparable to parametric surfaces. We also derive criteria that guarantee complete pixel coverage of the surface. The point‐based method allows for hidden surface elimination using a z‐buffer, and shadow casting using a shadow buffer. We illustrate the technique with a number of surfaces, and discuss its advantages and disadvantages.
Bibliography:istex:F1F22DF0636C677ABA676B6366F02A4C89170EC8
ArticleID:CGF1096
ark:/67375/WNG-Q8R3PFG9-D
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ISSN:0167-7055
1467-8659
DOI:10.1111/j.1467-8659.2007.01096.x