NDLI: A Generalized Scanning Technique for Display of Parametrically Defined Surfaces

Please wait, while we are loading the content...

A Generalized Scanning Technique for Display of Parametrically Defined Surfaces

Content Provider	IEEE Xplore Digital Library
Author	Rockwood, A.
Copyright Year	1981
Abstract	Special attention is given to the adaptation of the technique for efficiency to both polynomial and rational Bezier patches. The resulting algorithms are simple and robust. Their speed depends mainly on the surface area of the object being rendered, not on the number of surface patches. The technique is particularly suitable for rapid display of geometrically complex objects. Since the technique directly renders from the definitions of the surfaces without needing polygons, it can maintain a relatively compact database. Several examples with timing are included. The technique described creates smooth, shaded images for parametrically defined surfaces. It depends on a general surface scan to generate a dense set of points that represents the surface. Hidden surfaces are eliminated by sorting the sample points into a z-buffer and retaining the points nearest the viewer. Alternative schemes are given for computing the surface normal for each point in the z-buffer. Conventional illumination routines can then be applied to determine the intensities at each pixel, although the reflection-mapping technique is preferred for this article.
Sponsorship	IEEE Computer Society
Starting Page	15
Ending Page	26
Page Count	12
File Size	7621222
File Format	PDF
ISSN	02721716
Volume Number	7
Issue Number	8
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1987-08-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Image segmentation Computer displays Rendering (computer graphics) Polynomials Computer aided manufacturing CADCAM Computer graphics Approximation algorithms
Content Type	Text
Resource Type	Article
Subject	Computer Graphics and Computer-Aided Design Software

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Rendering algorithms for deterministic fractals

Displays on display

Approximation by interval Bezier curves

The floating column algorithm for shaded, parallel display of function surfaces without patches

A 3-D Graphics Display System With Depth Buffer and Pipeline Processor

Surfaces-techniques for cubic algebraic surfaces

Hierarchical data structures and algorithms for computer graphics. I. Fundamentals

A Programmable Display Layer for Virtual Reality System Architectures

Low Bit-Rate Image Coding Using Adaptive Geometric Piecewise Polynomial Approximation

A Generalized Scanning Technique for Display of Parametrically Defined Surfaces

Similar Documents

Rendering algorithms for deterministic fractals

Displays on display

Approximation by interval Bezier curves

The floating column algorithm for shaded, parallel display of function surfaces without patches

A 3-D Graphics Display System With Depth Buffer and Pipeline Processor

Surfaces-techniques for cubic algebraic surfaces

Hierarchical data structures and algorithms for computer graphics. I. Fundamentals

A Programmable Display Layer for Virtual Reality System Architectures

Low Bit-Rate Image Coding Using Adaptive Geometric Piecewise Polynomial Approximation

A Generalized Scanning Technique for Display of Parametrically Defined Surfaces