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[BWG+03]  Combining Edges and Points for Interactive High-Quality Rendering

Bala:2003:CEA (Article)
Author(s)Bala K., Walter B. and Greenberg D.
Title« Combining Edges and Points for Interactive High-Quality Rendering »
JournalACM Transactions on Graphics, Proceedings of ACM SIGGRAPH 2003 (San Diego, CA, July 27--31, 2003)
Volume22
Number3
Page(s)631--640
Year2003
AddressNew York

Abstract
This paper presents a new interactive rendering and display technique for complex scenes with expensive shading, such as global illumination. Our approach combines sparsely sampled shading (points) and analytically computed discontinuities (edges) to interactively generate high-quality images. The edge-and-point image is a new compact representation that combines edges and points such that fast, table-driven interpolation of pixel shading from nearby point samples is possible, while respecting discontinuities. The edge-and-point renderer is extensible, permitting the use of arbitrary shaders to collect shading samples. Shading discontinuities, such as silhouettes and shadow edges, are found at interactive rates. Our software implementation supports interactive navigation and object manipulation in scenes that include expensive lighting effects (such as global illumination) and geometrically complex objects. For interactive rendering we show that high-quality images of these scenes can be rendered at 8–14 frames per second on a desktop PC: a speedup of 20–60 over a ray tracer computing a single sample per pixel.

BibTeX code
@article{Bala:2003:CEA,
  opteditor = {},
  number = {3},
  month = jul,
  author = {Kavita Bala and Bruce Walter and Donald P. Greenberg},
  optkey = {},
  optseries = {},
  localfile = {papers/Bala.2003.CEA.pdf},
  address = {New York},
  publisher = {ACM Press},
  organization = {ACM SIGGRAPH},
  doi = {http://doi.acm.org/10.1145/882262.882318},
  journal = SIGGRAPH2003,
  opturl = {},
  volume = {22},
  optcrossref = {},
  booktitle = {Proceedings of ACM SIGGRAPH 2003 (San Diego, jul 2003)},
  optstatus = {},
  title = {{C}ombining {E}dges and {P}oints for {I}nteractive {H}igh-{Q}uality
           {R}endering},
  abstract = {This paper presents a new interactive rendering and display
              technique for complex scenes with expensive shading, such as
              global illumination. Our approach combines sparsely sampled
              shading (points) and analytically computed discontinuities (edges)
              to interactively generate high-quality images. The edge-and-point
              image is a new compact representation that combines edges and
              points such that fast, table-driven interpolation of pixel shading
              from nearby point samples is possible, while respecting
              discontinuities. The edge-and-point renderer is extensible,
              permitting the use of arbitrary shaders to collect shading
              samples. Shading discontinuities, such as silhouettes and shadow
              edges, are found at interactive rates. Our software implementation
              supports interactive navigation and object manipulation in scenes
              that include expensive lighting effects (such as global
              illumination) and geometrically complex objects. For interactive
              rendering we show that high-quality images of these scenes can be
              rendered at 8–14 frames per second on a desktop PC: a speedup of
              20–60 over a ray tracer computing a single sample per pixel.},
  year = {2003},
  pages = {631--640 },
}

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