First off I have only been able to get the ies addon to work by loading the script into blender and then pressing ctrl+U to set it as default. I have tried to save the script as a .py and installing it as an addon, but it never works. Anyone that can help me with that would be greatly appreciated.
Second, I’ve noticed that when I use ies lights they cause a HUGE amount of noise and really slow down renders. The image I posted is a very simple scene with one ies light, one text object (converted to mesh) and a plane with a couple subsurf lvls added. This render is 1000 samples and I still see noise. Also it took 3mins at 720x540. Yeah the lights look wonderful, but hell I would need a bank of computers to render a complex animated scene. Anyone out there have any advice or tips about using these?