Lighting Ies Files Download
Mirta Dozar
IES files describe how light from a lamp is distributed in a room. This data is provided by many manufacturers so that lighting designers can realistically simulate how a project will look when a specific light source is used.
3D artists also use this data to calculate their images more realistically. However, it is cumbersome to find the correct file using try and error, as the manufacturer does not necessarily include a visual example.
For this reason this page was created. We have enriched existing IES collections with manufacturer data and have reached almost 200'000 data in the end. Using python we read the data, hashed the content as MD5 and assigned the data to the individual manufacturers. Thereby we eliminated duplicates. After this process, there was "only" 160'000 data left.
The goal was that the preview images should have more or less the same brightness. Therefore we first had to calculate a preview and measure the maximum brightness, adjust the light intensity and finally calculate the image. During this process, data that are too dark are filtered out (luminous intensity = infinity)
Our computer boasts an impressive daily processing capacity of approximately 7,200 files, which are seamlessly loaded onto this page and integrated into our database via a cron job. It took approximately three weeks to process the initial batch of 160,000 files...
In cases where the manufacturer provides Luminous Data Transfer (LDT or Eulumdat) instead of IES data, we have ensured data compatibility by converting it, making both data types readily available for download. Some manufacturers even offer both data types, and you can find both files here.
With the Blender plugin Ieslibrary4Blender, available on GitHub, you can easily import IES-Lights into Blender. The plugin make use of our API that enables the seamless extraction of information from ieslibrary.com directly into Blender.
Get ready to witness light like never before! We've placed an equirectangular camera inside a cube, and the results are nothing short of mesmerizing. This innovative feature will illustrate how light illuminates in 3D, offering a fresh perspective on illumination dynamics.
Updating all the computers ASAP, thanks for keeping all this open to the world!
@Chris Will there be any new news for implementing back in IES files? Or is the practice still to best be using the Legacy along side the new 1.3.0 version, thanks again for all the work going into this!
Thanks Chris that would be truly amazing! That is correct on the Point In Time Node (Grid Based in Legacy for static hourly times). It has proven to be an extremely useful tool for situations in renovations and new construction, for both interior and exterior environments, where the balance of natural and artificial light is needed! Amazing tools and always looking forward to a new update! Would there happen to be a spot to check back to for updates in between the releases? Thanks again!
I opened up an issue for adding Luminaires into the core libraries and another one for exposing Luminaires on the Grasshopper components. So you will know when this features has been exposed on the development version of the plugin when both those issues are closed.
@chris thank you for this info on development. I think its really an important tool for us to simulate artificial lighting and also for code compliance for artificial lighting in India. Hope we get it soon.
Any news on this Chris?
In same push, it could be nice to include the black sky for the pure artificial lighting renders.
Unless it can be done with the illuminance-sky and set the illuminance to 0?
Luminaires have still not been implemented, @Julioamodia89 , but it is on our agenda. The ability to plug Radiance folders into any recipe is implemented so manually adding the .rad files for the luminaires to the scene of the radiance folder is the best workaround for now.
The site currently has over 90,000 IES files available to download for free, representing real-world lights from manufacturers like GE, Osram and Philips, each with a rendered preview of the light pattern it generates.
Download IES files for real-world light fixtures for use in DCC and CAD software
A global standard for photometric data, the IES file format encodes the intensity and spatial distribution of light emitted by real-world light fixtures.
Although IES files are freely available online, IES Library collects together data from many individual repositories, including those for a range of major lighting manufactuers, and eliminates duplicate records.
New tagging and browsing features planned for the site
Furrer is currently in the process of populating the library with data, and says that he has around 160,000 files to process in total.
Future features planned for the site include a contextual tagging system, the option for usrs to rate individual files, and a Blender plugin to make it possible to browse files directly inside the software.
Around a year ago I use to get BSOD on shutdowns roughly 3 quarters of the time I shut down. Error codes narrowed it down to a driver but I could never find the culprit and tried to update all the ones I could think of to no avail in fixing the problem. I was using ICUE 3 at the time. ICUE 4 had been out for a bit by that time so I figured I might as well try it out. lol Low and behold my BSOD went away. Don't ask me. You'd think updating new versions of ICUE 3 would also be giving me new drivers with it but IDK what the deal is. I don't even know for sure if ICUE was the culprit to begin with. It could have been a conflict with something else. I just know that all I changed was going from 3 to 4.
Anyways, a few days ago I had two power outages and FML the BSOD are back so something got borked again. There was a new update to 4 and I was hoping it would fix it but it was just like updating 3 before, no changes on the BSOD. So I want to just wipe it completely and DL it again with a complete fresh install. The issue is I have like lol literally around 50 profiles I've DL and an extensive lighting library from them and I don't want to lose either. Can someone point me to what files I need to copy to keep my DL profiles as well as my lighting library?
Copy the entire Corsair folder to a save place and dump into a folder with a CUE specific version number. You then copy it back into the same place after reinstalling CUE but before launching the program.
Thanks. lol I was looking in users/appdata/local. Wouldn't I just need to copy over the profiles and libraries folder instead of the whole Corsair folder? I'd like to narrow it down as much as possible to get as fresh a start as possible.
Backup the entire folder. You then can try only swapping in the Profiles and Libraries files. However, it's possible you may lose some element of the profile if missing data is not there. Fan control and configuration, DPI settings, and a few other things have their own folders. If you want to try, run CUE after install and before moving new folders in. Then quit CUE and delete the Profiles and Libraries in the C:User/name/App/Data/Roaming/Corsair/CUE4 and copy the old two folder in. Then re-launch CUE. I know you have a ton of profiles, but at some point you are going to want to export those. I used to be the same way and eventually you will get burned on just copying the App Data folder data on CUE backups. I still do it every version and before installing the new one, but it's not a guaranteed profile recovery if you have systemic errors building up or if there is a hard change to how CUE handles data in the future.
For now, I think copying the folder is OK for you because you're troubleshooting. I am not sure your CUE profile data is going to be directly related to the BSODs. At shutdown, CUE should have quit several seconds before you get to that point. However, this seems one way to eliminate this as a possible cause.
I viewed various GLB files (available in internet) in Microsoft 3D Viewer. Model lighting appears same for all models. I think Microsoft 3D Viewer uses it's own lighting settings, does not use the lighting information available in GLB.
The glTF file format's support for embedded lighting requires an extension, KHR_lights_punctual. When exporting the model from Blender, there's an option in the export setting for whether lights are included. Any viewer that doesn't support this extension can still display the model, but would ignore the lighting, and would need to create its own lighting.
It's also possible to 'bake' your lighting before exporting from Blender. This means whatever effect the lighting has on the surface is baked into a single texture per material, and that material is exported with the KHR_materials_unlit extension attached, such that no further lighting will affect that material. This extension is more widely supported than KHR_materials_unlit, and should look good even if the extension is not supported, so this might be a safer and more portable option for you. You can find tutorials for baking in Blender on YouTube, or use addons like SimpleBake.
Using several different manufacturer's .ies files for LED lighting gives me 0.00 fc in spaces with lights in them. As I understand previous versions of Revit are not able to handle absolute photometry in LED .ies files. It produces insanely low Coefficient of Utilization numbers.
I'm Judy from Revit support and I'll be glad to try to help you out with this question. The problem of the large negative coefficient of utilization that you've been getting has been fixed in Revit 2019. You could try making a copy of your model that you can upgrade (without doing so to the production model) so you can do the calculations in the newer version.
I tested this in 2019 and it seems to have been resolved. But if others are still experiencing it, I may need to dig deeper. Staff here isn't really keen on editing the manufacturer's .ies files if it can be avoided.
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