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more free photometric light files (IES)

MistaraMistara Posts: 38,675
edited April 2018 in Carrara Discussion

http://www.lithonia.com/photometrics.aspx

  ALL PHOTOMETRIC DATA FILES

 

http://www.cgarena.com/freestuff/tutorials/max/ieslights/
IES stands for Illuminating Engineering Society. IES standard file format was created for the electronic transfer of photometric data over the web. It has been widely used by many lighting manufacturers and is one of the industry standards in photometric data distribution. An IES file is basically the measurement of distribution of light (intensity) stored in ASCII format. You can think of it as a digital profile of a real world light. In 3d software like 3ds max it can be used for creating lights with shapes and physically accurate form.

IES light files are created by many major lighting manufacturers and can be downloaded freely from their sites. One of such lighting manufacturer is Lithonia Lighting (www.lithonia.com) which has an extensive library of IES files in different categories.

 

Post edited by Mistara on

Comments

  • Persona Non GrataPersona Non Grata Posts: 1,365
    edited March 2021

    .

    Post edited by Persona Non Grata on
  • MistaraMistara Posts: 38,675

    theres no way to preview all these filescrying

  • MistaraMistara Posts: 38,675

    and handydandy link to the ibl archive  http://hdrlabs.com/sibl/archive.html

  • MistaraMistara Posts: 38,675

    with using these kights, needs full idl imo.  and walls to bounce off of

    prolly need something like the cornell box to compare how they look/  the file names dont make sense to me.  think the numbers mean lumens 

  • 3DAGE3DAGE Posts: 3,311
    edited April 2018

    Hi Misty

    you're best source for IES,. is directly from the lighting manufacturer,.... GE/ Philips etc...

    most of these files have names or "product codes" which match the light fitting/bulb assembly,. so you would use the correct lES file,.. to match the real world light fitting.

    for viewing the lighting data,   try this.....

    http://www.photometricviewer.com

    or this...

    http://electrical-engineering-portal.com/download-center/electrical-software/ge-lightbeams

     

    Post edited by 3DAGE on
  • MarkIsSleepyMarkIsSleepy Posts: 1,496
    edited April 2018
    Mistara said:

    theres no way to preview all these filescrying

    There's an old thread where @Esemwy shared a DAZ Studio script for making thumbnails of all the IES files in a directory: https://www.daz3d.com/forums/discussion/117126/ies-profile-thumbnail-maker

    The thread is from 2016 so I don't know if it still works in the current version of DS, but it might be worth a try.

    Post edited by MarkIsSleepy on
  • MistaraMistara Posts: 38,675
    edited April 2018

    viewers??!!  thanks smileysmiley

     

    didnt know ds supported ies also yes

    Post edited by Mistara on
  • MarkIsSleepyMarkIsSleepy Posts: 1,496
    edited April 2018
    Mistara said:

    didnt know ds supported ies also yes

    I think it's a relatively recent addition to DS. Sometime in the 4.9 series maybe? It definitely does now though.

    The cool thing about that script is that what it is doing is just making a lot of really small renders of the lights, so even if you only use DS to run the script you end up with a folder full of little PNG images you can look through to see what the IES light with the same name looks like. Much faster than looking at them one at a time in a viewer.

    Post edited by MarkIsSleepy on
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