کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
442057 692041 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interactive modeling of implicit surfaces using a direct visualization approach with signed distance functions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر گرافیک کامپیوتری و طراحی به کمک کامپیوتر
پیش نمایش صفحه اول مقاله
Interactive modeling of implicit surfaces using a direct visualization approach with signed distance functions
چکیده انگلیسی

Modeling appealing virtual scenes is an elaborate and time-consuming task, requiring not only training and experience, but also powerful modeling tools providing the desired functionality to the user. In this paper, we describe a modeling approach using signed distance functions as an underlying representation for objects, handling both conventional and complex surface manipulations. Scenes defined by signed distance functions can be stored compactly and rendered directly in real-time using sphere tracing. Hence, we are capable of providing an interactive application with immediate visual feedback for the artist, which is a crucial factor for the modeling process. Moreover, dealing with underlying mathematical operations is not necessary on the user level. We show that fundamental aspects of traditional modeling can be directly transferred to this novel kind of environment, resulting in an intuitive application behavior, and describe modeling operations which naturally benefit from implicit representations. We show modeling examples where signed distance functions are superior to explicit representations, but discuss the limitations of this approach as well.

Figure optionsDownload high-quality image (106 K)Download as PowerPoint slideHighlights
► We interactively model complex implicit surfaces with signed distance functions.
► The scene graph is translated into a fragment shader for direct real-time rendering.
► Neither indirect visualization techniques nor explicit approximations are required.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Graphics - Volume 35, Issue 3, June 2011, Pages 596–603
نویسندگان
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