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Markus Dohner

Those .IES files that came with RW demo 12.0

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Hi Folks

Does anybody know where I can get some more of those IES distribution files which came on the RW demo CD??

I'm looking for common lamps like PAR 30 NSP, and so forth. For an exhibit design project. Any ideas would be appreciated.

Markus Dohner

Chicago, IL

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You should have them in the Libraries folder. Check out the VW folder> Libraries and Default libraries for some of the examples.

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Hello Markus Dohner:

Depending on the package you have, look in the Libraries->Objects-Imperial->16_Electrical_Accurate_Lamps.mcd file. In this file are light bulb symbols predefined with accurate light color and brightness. You can drag and drop these bulbs into you model and they produce accurate lighting. The View->Lighting->Layer Lighting Options color temperature should be set to 3400K. Also you will need to use Auto Exposure with the renderings (enabled through the Custom RW Options dialog).

IES files are useful to replicate the non-uniform light distribution from a fixture. Almost all lighting manufacturers make these files available on their web sites. RW will pick up the total intensity from the file automatically if it is in there.

Dave Donley

dave@nemetschek.net

Edited by Dave_Donley_At_Home

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Hello,

So I'm a bit lost. I just spoke with someone at vectorworks who didn't know anything about IES files and said they could not be imported into VectorWorks. I have never worked with these files before, so I don't quite know how to deal with them. I have RenderWorks, but couldn't figure out how to open them in it. Nor is there really any info in the user's guide. Any help in telling me how to open these files would be great!

Thanks,

Charity

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Hello Charity:

To use IES files to define the light's distribution, you must create a Custom light object. The Custom light object is the one that requires an IES file to define it. It is the last kind of light in the mode bar for the Light Tool.

HTH,

Dave Donley

dave@nemetschek.net

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Hi Dave,

Can one get footcandle numbers in RenderWorks with these custom light objects? Or does one need spotlight?

Thanks,

Charity

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If the IES file has brightness information in it then RW can use it for rendering the light, but the value is not displayed in the Object Info palette.

If you're talking about the light meter feature in Spotlight, I am pretty sure it doesn't pick up the custom light object values. I think the value assigned to the instrument PIO drives that number.

Dave Donley

dave@nemetschek.net

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