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Transparency in Interactive Technical Illustrations
Author(s) -
Diepstraten J.,
Weiskopf D.,
Ertl T.
Publication year - 2002
Publication title -
computer graphics forum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 120
eISSN - 1467-8659
pISSN - 0167-7055
DOI - 10.1111/1467-8659.t01-1-00591
Subject(s) - computer science , rendering (computer graphics) , computer graphics (images) , transparency (behavior) , opacity , computer vision , software rendering , artificial intelligence , image based modeling and rendering , computer graphics , non photorealistic rendering , texture synthesis , animation , 3d computer graphics , image texture , image processing , computer animation , computer facial animation , image (mathematics) , physics , computer security , optics
This paper describes how technical illustrations containing opaque and non‐opaque objects can be automatically generated. Traditional methods to show transparency in manual drawings are evaluated to extract a small and effective set of rules for computer‐based rendering of technical illustrations, leading to a novel view‐dependent transparency model. We propose a hardware‐accelerated depth sorting algorithm in image‐space which specifically meets the requirements of our transparency model. In this way, real‐time rendering of semi‐transparent technical illustrations is achieved. Finally, it is described how our approach can be combined with other methods in the field of non‐photorealistic rendering in order to enhance the visual perception of technical illustrations. Categories and Subject Descriptors (according to ACM CCS): I.3.7 [Computer Graphics]: Color, shading, shadowing and texture