Hi there! As i remember, in Brazil R/S as you create a brazil light and try to assign a .ies file to the photometric distribution of the light, a simple window with a preview area shows up so that you can easily select the proper .ies file. Is there any chance that we (some day) have this in v-ray?
There is a tiny tool called IES LOOK (not sure this is the right name) can do this job outside 3dsmax.
