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Publication Type	Technical report
School or College	College of Engineering
Department	Computing, School of
Creator	Blinn, James F. (James Frederick), 1949-
Title	Computer display of curved surfaces
Date	1978
Description	Abstract: This thesis attacks the problem of generating computer synthesized images both more rapidly and more realistically. Increase in speed is achieved by a scan line based algorithm for drawing pictures of parametrically defined curved surfaces. Computation time is reduced by requiring calculation at only a few visually important points along a scan line, and by interpolating intensities between them. The realism is increased by use of shading functions based on semi-empirical models of how light actually reflects off of real surfaces. Other enhancements involve simulation of surface roughness and irregularities by applying perturbations to the properties of the surface as a function of the value of the defining parameters.
Type	Text
Publisher	University of Utah
Subject	computer images; computation time; surfaces
Subject LCSH	Curves--Computer simulation; Surfaces--Computer simulation; Computer-aided design; Computer graphics--Research; Three-dimensional imaging--Research; Computer drawing
Language	eng
Series	University of Utah Computer Science Technical Report
Relation is Part of	ARPANET
Format Medium	application/pdf
Format Extent	204,635,212 bytes
File Name	Blinn-Compiler_Display_Of.pdf
Conversion Specifications	Original scanned with Kirtas 2400 and saved as 400 ppi uncompressed TIFF. PDF generated by LIMB™ for CONTENTdm display
ARK	ark:/87278/s60p3k68
Setname	ir_computersa
ID	105596
Reference URL	https://collections.lib.utah.edu/ark:/87278/s60p3k68

Page Metadata

Title	Page 175
Setname	ir_computersa
ID	105595
OCR Text	Show 167 [15] Romney, G. W. et aI, "Halftone prespective drawings by computer", Pr o c , AFI'PS FJCC, 31 (1967). [16] Torrance, K. E. and Sparrow, E. M., "Polarization, directional distribution, and off-specular peak phenomena in light reflected from roughened surfaces", J. Opt. Soc. Am. 56, 7(Jul 1966) 916-925. [17] Torrance, K. E. and Sparrow, E. M., "Theorv for off-specular reflection from roughened surfaces", J. Opt. Soc. Am. 57, 9(Sep 1967) 1105-1114. [18] Trowbridge, T. S. and Reitz, K. P., "Average irregularity representation of a roughened surface for ray r e fl e c t ion", J. Op t . Soc. Am. 65 , 5 (M a y 1 97 5 ) 531-536. [19] \>Jatkins, G. algor i thm" , Utah, Tech. S., "A real time visible surface Computer Science Department, Univ. of Report UTEC-CSc-70-101, June ]970. [20] Woon, P., "On the computer dr􁪽􋵷wing of solid objects bounded by quadric surfaces", New York University, Report TR-403-3, June 1969.
Reference URL	https://collections.lib.utah.edu/ark:/87278/s60p3k68/105595