Article

An improved illumination model for shaded display

Author:

Turner WhittedAuthors Info & Claims

SIGGRAPH '05: ACM SIGGRAPH 2005 Courses

Pages 4 - es

https://doi.org/10.1145/1198555.1198743

Published: 31 July 2005 Publication History

Abstract

To accurately render a two-dimensional image of a three-dimensional scene, global illumination information that affects the intensity of each pixel of the image must be known at the time the intensity is calculated. In a simplified form, this information is stored in a tree of "rays" extending from the viewer to the first surface encountered and from there to other surfaces and to the light sources. A visible surface algorithm creates this tree for each pixel of the display and passes it to the shader. The shader then traverses the tree to determine the intensity of the light received by the viewer. Consideration of all of these factors allows the shader to accurately simulate true reflection, shadows, and refraction, as well as the effects simulated by conventional shaders. Anti-aliasing is included as an integral part of the visibility calculations. Surfaces displayed include curved as well as polygonal surfaces.

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An improved illumination model for shaded display
1. Computing methodologies
  1. Computer graphics

Recommendations

An improved illumination model for shaded display
SIGGRAPH '79: Proceedings of the 6th annual conference on Computer graphics and interactive techniques

To accurately render a scene, global illumination information that affects the intensity of each pixel of the image must be known at the time the intensity is calculated. In a simplified form, this information is stored in a tree of “rays” extending ...
An improved illumination model for shaded display

To accurately render a two-dimensional image of a three-dimensional scene, global illumination information that affects the intensity of each pixel of the image must be known at the time the intensity is calculated. In a simplified form, this ...
An improved illumination model for shaded display

To accurately render a scene, global illumination information that affects the intensity of each pixel of the image must be known at the time the intensity is calculated. In a simplified form, this information is stored in a tree of “rays” extending ...

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cover image ACM Conferences

SIGGRAPH '05: ACM SIGGRAPH 2005 Courses

July 2005

7157 pages

ISBN:9781450378338

DOI:10.1145/1198555

Editor:
John Fujii
Hewlett-Packard Company

Copyright © 2005 ACM.

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Published: 31 July 2005

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https://doi.org/10.1109/IPDPS57955.2024.00032
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