High-Performance Graphics 2010

Permanent URI for this collection

https://diglib.eg.org/handle/10.2312/325

Browse

Browsing High-Performance Graphics 2010 by Subject "Categories and Subject Descriptors (according to ACM CCS): I.3.1 [Computer Graphics]: Hardware Architecture Graphics Processors I.3.7 [Computer Graphics]: Three-Dimensional Graphics and Realism Hidden line/surface removal"

Now showing 1 - 1 of 1
  • Thumbnail Image
    Item
    Efficient Bounding of Displaced Bézier Patches
    (The Eurographics Association, 2010) Munkberg, Jacob; Hasselgren, Jon; Toth, Robert; Akenine-Möller, Tomas; Michael Doggett and Samuli Laine and Warren Hunt
    In this paper, we present a new approach to conservative bounding of displaced Bézier patches. These surfaces are expected to be a common use case for tessellation in interactive and real-time rendering. Our algorithm combines efficient normal bounding techniques, min-max mipmap hierarchies and oriented bounding boxes. This results in substantially faster convergence for the bounding volumes of displaced surfaces, prior to tessellation and displacement shading. Our work can be used for different types of culling, ray tracing, and to sort higher order primitives in tiling architectures. For our hull shader implementation, we report performance benefits even for moderate tessellation rates.