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Issue No.05 - September/October (2007 vol.13)
pp: 1004-1014
ABSTRACT
<p><b>Abstract</b>—To eliminate the need to evaluate the intersection curves in explicit representations of surface cutouts or of trimmed faces in BReps of CSG solids, we advocate using Constructive Solid Trimming (CST). A CST face is the intersection of a surface with a Blist representation of a trimming CSG volume. We propose a new GPU-based CSG rendering algorithm that trims the boundary of each primitive using a Blist of its active zone. This approach is faster than the previously reported Blister approach, eliminates occasional speckles of wrongly colored pixels, and provides additional capabilities: painting on surfaces, rendering semitransparent CSG models, and highlighting selected features in the BReps of CSG models.</p>
INDEX TERMS
GPU support for CSG rendering, CSG expressions for trimmed faces, CAD model visualization
CITATION
John Hable, "CST: Constructive Solid Trimming for Rendering BReps and CSG", IEEE Transactions on Visualization & Computer Graphics, vol.13, no. 5, pp. 1004-1014, September/October 2007, doi:10.1109/TVCG.2007.70411
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