A reflectance model for computer graphics

This paper presents a new reflectance model for rendering computer synthesized images. The model accounts for the relative brightness of different materials and light sources in the same scene. It describes the directional distribution of the reflected light and a color shift that occurs as the reflectance changes with incidence angle. The paper presents a method for obtaining the spectral energy distribution of the light reflected from an object made of a specific real material and discusses a procedure for accurately reproducing the color associated with the spectral energy distribution. The model is applied to the simulation of a metal and a plastic.

[1]  D. L. Macadam,et al.  The measurement of appearance , 1975 .

[2]  Donald P. Greenberg,et al.  Perceptual color spaces for computer graphics , 1980, SIGGRAPH '80.

[3]  K. Torrance,et al.  Theory for off-specular reflection from roughened surfaces , 1967 .

[4]  J. O. Porteus.  Relation between the Height Distribution of a Rough Surface and the Reflectance at Normal Incidence , 1963 .

[5]  P. Beckmann,et al.  The scattering of electromagnetic waves from rough surfaces , 1963 .

[6]  James F. Blinn,et al.  Models of light reflection for computer synthesized pictures , 1977, SIGGRAPH.

[7]  D. B. Judd,et al.  Color in Business Science and Industry , 1952 .

[8]  Y. S. Touloukian,et al.  Thermal radiative properties: Nonmetallic solids. , 1972 .

[9]  Turner Whitted,et al.  An improved illumination model for shaded display , 1979, CACM.

[10]  E. Sparrow,et al.  Radiation Heat Transfer , 1978 .

[11]  E. Barkman.  Specular and Diffuse Reflectance Measurements of Aluminum Surfaces , 1970 .

[12]  Bui Tuong Phong.  Illuminat~on for computer generated images , 1973 .

[13]  James F. Blinn,et al.  Texture and reflection in computer generated images , 1976, CACM.

[14]  Henry Gouraud,et al.  Computer Display of Curved Surfaces , 1971, Outstanding Dissertations in the Computer Sciences.

[15]  K. Torrance,et al.  Biangular reflectance of an electric nonconductor as a function of wavelength and surface roughness , 1965 .

[16]  Bui Tuong Phong.  Illumination for computer generated pictures , 1975, Commun. ACM.

[17]  H. E. Bennett,et al.  Relation between Surface Roughness and Specular Reflectance at Normal Incidence , 1961 .

[18]  M. Biot.  On the Reflection of Electromagnetic Waves on a Rough Surface , 1958 .