Results 221 to 230 of about 4,474 (261)

A radiosity approach for the simulation of daylight

1995
In this paper, an extension to the radiosity method, for the simulation of daylight, is presented. The sky hemisphere around the scene is subdivided into a set of sky patches. By defining a location on the earth, a time of day and the weather conditions (e.g., clear sky, overcast, partly cloudy) a sky model (e.g., CIE or Perez) is applied to compute ...
Stefan Müller 0002, Wolfram Kresse, Neil Gatenby, Frank Schöffel   +3 more
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Simulation for Daylighting in the Real World

eCAADe proceedings, 2005
Architecture
Post, J. (author), Koutamanis, A. (author)   +1 more
openaire   +2 more sources

Glass Filters for Simulating Daylight in Sensitometric Exposure

Applied Optics, 1968
Two glass filters for the sensitometric exposure of daylight films are described. The filters are each made of four glass color filters. The thickness of the four glasses is chosen to match two types of relative energy distributions of sensitometric daylight with a tungsten lamp operated at 2850 degrees K.
G, Vieth, W, Heiland
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Daylight simulators and colour vision tests

Ophthalmic and Physiological Optics, 1998
Summary Our previous studies have shown that the influence of the illuminating source used for colour vision examination on the intended function of the test is very test dependant, some being relatively unaffected by source characteristics while others can be significantly affected.
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Daylight simulation with photon maps

2005
Physically based image synthesis remains one of the most demanding tasks in the computer graphics field, whose applications have evolved along with the techniques in recent years, particularly with the decline in cost of powerful computing hardware. Physically based rendering is essentially a niche since it goes beyond the photorealistic look required ...
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Simulation-based electric lighting control algorithm: integrating daylight simulation with daylight-linked lighting control

2022
Electric lighting consumed approximately 8% of total electricity consumption in the US residential and commercial sectors combined in 2020, accounting for an estimated 6% of total US electricity consumption (EIA, 2021). Reducing electricity consumption while maintaining an acceptable illuminance level is critical to achieving environmental ...
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Color scales in simulated daylight

Color Research & Application, 1981
AbstractThe pigmentation plan used for production of the color cards made available by the Optical Society of America (OSA) for its Committee on Uniform Color Scales (UCS) was designed in such a manner that the color scales should, within the production tolerances, appear uniform in all phases of daylight.
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Comparative Evaluation of Daylighting Simulation Programs

Applied Mechanics and Materials, 2016
Daylighting simulation programs use different methods and algorithms for illuminance calculations in buildings. It is widely known that results of different lighting simulation programs does not have to be the same for two or more identical rooms. Hence CIE issued Technical Report 171: 2006 which presents test cases to assess the accuracy of lighting ...
Lenka Gábrová, Michaela Hlásková, František Vajkay   +2 more
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Daylight prediction: an evaluation of daylighting simulation software for four cases

2015
The use of daylighting to supplement and offset artificial lighting requirements in interior spaces is an important step in achieving California?s current and future energy goals. The analysis of daylighting is not only difficult for lighting designers, but also the results are not always accurate.
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Evaluation of daylight simulators. Part 2; Assessment of the quality of daylight simulators using actual metameric pairs†

Coloration Technology, 2003
This paper discusses two methods for evaluating the quality of daylight simulators, namely the band‐value method specified in British standard BS 950 and the CIE metamerism index method. Six daylight simulators of various types and manufacturers were used for the assessment and a psychophysical experiment was conducted to evaluate the two methods.
H Xu, M R Luo, B Rigg
openaire   +1 more source