The free Rip3D application “IES Generator” creates Illuminating Engineering Society, or IES, files. These files are typically distributed by manufacturers of lighting materials to display how light from their products is distributed in real life. However, you might need to incorporate an IES file into your own design that does not yet exist. Using the IES Generator, it is possible to design your own IES file, which can then be used in your IES-compatible program. Tips Writer Bio

How to Create IES Files - 51