Hello everyone. Back again with a new problem concerning the lights. I need some informations on how to model the artificial lights of my building. My questions are basic, because i am new in modeling.
The lights are : fluorescent lamps.
First question: My lamps are 549 mm lenth. how do I model that?
Second question: Ecotect asks for the angle of cut off and hot-spot. Fluoroscent lamp has this angles or it works in all the place?
Last question: When I am modeling the lamp, Ecotect asks for a first and a last point. Are these points connected with the first and the end of the lamp or they are connected with the height of the area which is illuminated? For a fluroscent lamp the lenth should be horizontical or vertical?
Thank everyone in advance for the answers.
Yours
Sotiris Papantoniou
Senior student
Environmental Engineering Department
Technical University of Crete
Linear lighting?
Hello, Sotiris
Have you found the solution? I'm having same problem. I'm not sure how we can model linear lighting fixture in Ecotect, since it seems I can input only single axis photometric chart.
If you had found the solution, would let me know?
Thank you,
Koj
similar problem
hallo all, i am new here
i already try this problem with using a line with lamp material and i chose fluoroscent strip lamp, and it work when i use radiance as a solver.
the light distribution looks good, but i am not sure with the light intensity, because its just around 60 - 70 lux, but when i try to use ecotect as a solver, light intensity looks make sense but not for light distribution, looks strange for me.
did anyone already have the solution...???
thanks
Hi Ecotect can not suppot
Hi
Ecotect can not suppot the non-symmetrical or 3d space light source output profile(so just support spot light), so you can not model it directly. but you can simulate it by two or more spot lights. Another method is export to Radiance, but it is not very simple. First of all, you must get the curve data of the light source.
LINEAR LIGHTING_RADIANCE
Hi, nice to meet you all again..
I have been doing a lot experiment, and there is some results. when we try to simulate a linear light source, it much better to use radiance, but first off all we must make a radiance light material. it can be done by using lampcolor.exe tool that available in radiance install directory ( you can find how to use it in radiance help files ), the result with this tool will show a number of RGB color for the lamp. use this value to make a radiance light source material. when i render in radiance the result is great and make sense for both light value and distribution. Unfortunately radiance cannot support two ways material, what i mean is if we simulate a strip lamp using radiance material and another lamp using ecotect lamp material in the same model, the result will be incorrect for the strip lamp.
hope this will help everyone...