Rendering anti-aliased line segments

Authors:
K.-H. Wong;X. Ouyang;C.-W. Lim;T.-S. Tan;J. Nievergelt
Affiliations:
Sch. of Comput., Nat. Univ. of Singapore, Singapore;Sch. of Comput., Nat. Univ. of Singapore, Singapore;Sch. of Comput., Nat. Univ. of Singapore, Singapore;Sch. of Comput., Nat. Univ. of Singapore, Singapore;-
Venue:
CGI '05 Proceedings of the Computer Graphics International 2005
Year:
2005

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Abstract

Bridging the modeling and rendering gap between the existing triangle and point primitives, we explore the use of line segments as a new primitive to represent and render 3D models. Our main contribution extends the anti-aliasing theory in texture mapping to anti-aliased line segment rendering, and presents an approximation algorithm to render high quality anti-aliased opaque and transparent line segments in 3D models. This antialiasing technique is empirically validated by building a software pipeline to render models of any combination of the three types of modeling primitives: triangles, line segments and points. Our experiment shows that models comprising line segments are generally more efficient and effective for high quality rendering as compared to their corresponding pure point models.