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The remarkable Blender plugin known as " Lily Surface Scraper" has included the ability to import light sources from the IES library since version 1.8.1. Once logged in, users have the ability to mark data as favorites.Īs of late September 2023, our database has expanded to encompass a staggering 400,000 IES files, with many more awaiting processing in our system. In the interim, we've enhanced our platform with additional features, including tagging and logging options. Some manufacturers even offer both data types, and you can find both files here. 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. It took approximately three weeks to process the initial batch of 160,000 files. 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. During this process, data that are too dark are filtered out (luminous intensity = infinity) Therefore we first had to calculate a preview and measure the maximum brightness, adjust the light intensity and finally calculate the image. The goal was that the preview images should have more or less the same brightness. We then calculated this scene automatically for each IES file using python. After this process, there was "only" 160'000 data left.Īfter that we created a scene in Blender, where a light source hangs 5cm in front of a wall and 1m above the floor. Using python we read the data, hashed the content as MD5 and assigned the data to the individual manufacturers. We have enriched existing IES collections with manufacturer data and have reached almost 200'000 data in the end. However, it is cumbersome to find the correct file using try and error, as the manufacturer does not necessarily include a visual example.įor this reason this page was created. 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.ģD artists also use this data to calculate their images more realistically. IES files describe how light from a lamp is distributed in a room.
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