http://www.sgi.com/products/appsdirectory.dir/Applications/AEC/ApplicationNumber5381.html (Silicon Surf Promotional CD, 01/1995)RADIANCE 2.4 is a suite of programs for the analysis and visualizations of lighting in design. Input files specify the scene geometry, materials, luminaries, time, date, and sky conditions (for daylight calculations). Calculated values include spectral radiance (i.e. luminance + color), irradiance (luminance + color), and glare indices. Simulation results may be displayed as color images, numerical values adn contour plots. The primary advantage of RADIANCE over simpler lighting calculation and rendering tools is that there are no limitations on the geometry or the materials that may be simualted. RADIANCE is used by architects and engineers to predict illuamination, visual quality and appearance of innovative design spaces, and by researchers to evaluate new lighting and day lighting technologies.
Gregory J. Ward
Staff Scientist Lawrence Berkeley Laboratory 1 Cyclotron Road MS 90-3111 Berkeley, CA 94720 USA 510-486-4757 fax:510-486-4089 gjward@lbl.gov