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  • Title: CST: constructive solid trimming for rendering BReps and CSG.
    Author: Hable J, Rossignac J.
    Journal: IEEE Trans Vis Comput Graph; 2007; 13(5):1004-14. PubMed ID: 17622683.
    Abstract:
    Abstract-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.
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