A Comprehensive Light-Source Description for Computer Graphics
- 1 July 1984
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Computer Graphics and Applications
- Vol. 4 (7) , 66-75
- https://doi.org/10.1109/mcg.1984.275906
Abstract
For realistic simulation, light source descriptions require definitions of the geometry, the spectral distribution, and the spatial distribution of the luminous intensity. A procedure is described in which these light source characteristics are defined, and the resultant intensity computations are integrated into a testbed ray-tracing system. Point, linear, and area light sources are considered. Results are shown which account for the spectral distribution and illustrate the directional dependence of the intensity calculations. The procedures are applicable to environments of unlimited complexity. Light sources can be arbitrarily placed within the environment and contained within the simulated image.Keywords
This publication has 7 references indexed in Scilit:
- A Testbed for Realistic Image SynthesisIEEE Computer Graphics and Applications, 1983
- Lighting controls for synthetic imagesACM SIGGRAPH Computer Graphics, 1983
- A reflectance model for computer graphicsPublished by Association for Computing Machinery (ACM) ,1981
- An improved illumination model for shaded displayCommunications of the ACM, 1980
- Polygon shadow generationPublished by Association for Computing Machinery (ACM) ,1978
- Shadow algorithms for computer graphicsACM SIGGRAPH Computer Graphics, 1977
- Illumination for computer generated picturesCommunications of the ACM, 1975