Academic Phoenix Plus Covers Arnold Photometric Lights to get more realistic light patterns in renders.
Arnold, like most rendering engines, will have a variety of light sources making lighting more flexible for artists. One such light is the Photometric light, which gives users the ability to create realistic light-fall using an IES file. Photometrics are perfect for lighting interiors as they will behave much like light fixtures do in the real world.
Monica from Academic Phoenix Plus shows how to work with Arnold’s IES lights as part of her deeper look into all lights in Arnold. The tutorial explains IES lights providing some examples and then runs through some tips for working with IES files in Maya.