Analytic Visibility on the GPU. (6th May 2013)

• Record Type: Journal Article
• Authors: Auzinger, T.; Wimmer, M.; Jescke, S.
• Is Part Of: Computer graphics forum. Volume 32:Number 2(2013)Part 4
• Page Start: 409
• Page End: 418
• Publication Date: 2013-05-06
• Subjects: I.3.3 [Computer Graphics]: Picture/Image Generation—Antialiasing -- I.3.7 [Computer Graphics]: Three‐Dimensional Graphics and Realism—Visible line/surface algorithms; Computer graphics -- Periodicals; 006.605
• DOI: 10.1111/cgf.12061
• Languages: English
• ISSNs: 0167-7055

Abstract

Abstract: This paper presents a parallel, implementation‐friendly analytic visibility method for triangular meshes. Together with an analytic filter convolution, it allows for a fully analytic solution to anti‐aliased 3D mesh rendering on parallel hardware. Building on recent works in computational geometry, we present a new edge‐triangle intersection algorithm and a novel method to complete the boundaries of all visible triangle regions after a hidden line elimination step. All stages of the method are embarrassingly parallel and easily implementable on parallel hardware. A GPU implementation is discussed and performance characteristics of the method are shown and compared to traditional sampling‐based rendering methods.