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Title	Illumination for Computer-Generated Images
Publication Type	thesis
School or College	College of Engineering
Department	Computing
Author	Phong, Bui Tuong
Date	1973
Description	This .report describes a new model for the shading of computer-generated images of objects in general and of polygonally descibed free-form curved surfaces in particular. The shading function is determined by a linear interpolation Of the curvature of the surface. It takes into consideration the physical properties of the materials of which the surfaces are made. By applying the fundamental laws. I . . of optics, highlights due to the specular reflection of the light are simulated,. and other . existing shading problems are Overcome. . This results In computer-generated images of increased realism. A large number of sample pictures are' provided to give a pictorial comparison of the new shading process with past methods. Finally, pictures of I . simple real solids, such as cylinders, spheres and cones, are compared with those generated by the computer.
Type	Text
Publisher	University of Utah
Language	eng
Rights Management	© Bui Tuong Phong
Format	application/pdf
Format Medium	application/pdf
ARK	ark:/87278/s60635q6
Setname	ir_etd
ID	1602050
Reference URL	https://collections.lib.utah.edu/ark:/87278/s60635q6

Page Metadata

Title	Page 85
Format	application/pdf
Setname	ir_etd
ID	1602135
OCR Text	Show 80 13. E. J. Warnock, Representation", "A Hidden-Line Department for 'Halftone Picture Algorithm Computer Science, University of Utah, TR of 4-15,1969. Watkin!?, G. 'S "A Real-Time Visible Surface Algorithm," Department of Computer Science, University of Utah; UTECH-CSc-70-10 1, June 1970. 14. 15. W. Bouknight, Half-Toned 1969, 16. J. "A Procedure Computer for Graphics Generation Three-dimentional, of Representations," CACM 13, 9, September p. 527. Kelley,.K. C. "A Computer Graphics Program for the Generation of Half-Tone with Shadows," Universtiy of Illinois, Coordinated Science Lab., Images R-,444, 17. November 1969. Appel, A. "Shadows Without Substance: Some Techniques for Shading Machine Renderings of Solids," IBM Research Center, Yorktown Heights, New York. ,18. Rougelot, R. S.; and Schumacker, Display," NSA Report, NAS 9-3916. 19. R. ,A. "General Electric Gouraud, H. "Computer Display of Curved Surfaces," Department Science, University of Utah, UTEC;...CSc-71-113, June 1971. TC-20, June 1971, p. 623. 20. Newell, M. Shaded 21. Computer in IEEE, Also "A New Approach to the E., Newell, R. G., and Sancha, T. L. National, Conference. Proc. of ACM 1973 the Problem," Picture Cornsweet, 22. of Real Time T. N. "Visual Perception." Bekesy, G. von. "Neural Inhibitory Units of of Contrast Phenomena." Description 1970. Press, New York, Academic Eye and Skin. Quantitative Soc. Am., ,50, Opt. the S. p.p. 1060-1070. K. "Inhibition Hartline, H. Near By Retinal Elements 23. of Activity in the of Limulus Eye." F. "MACH BANDS: Quantitative Studies Retina." Holden-Day Inc., San Francisco, 1965. 24. Ratliff, 25. Stockham, T. G. "Image' Processing with Context of the IEEE., 60, 7, July 1972, pp. 828-842. 26. Jenkins, F. A., and White, H. E. Company Inc., New York, 1957. 27. Evans, R. M. "An Introduction York, 1948. 28. , Schweikert, D. G. "An Receptors by Illuminating Proc., 8, 69, 194,9., Visual on Fed. Neural of a 'Networks Visual the in Pr oc. "Fundamental of Optics." McGraw-Hili Book to Color." John Wiley & Sons Interpolation Curve Using a Spline Physics, 45, 1966, pp. 312-317. Journal of Mathematics and Model," in Editor, Under New Tension."
Reference URL	https://collections.lib.utah.edu/ark:/87278/s60635q6/1602135