This video shows you how to work with Iray Lightning in Daz Studio with many examples. See also our blog post:
00:00 - Intro
00:34 - Environment Lighting
01:39 - Sun-Sky Lighting
02:26 - Creating the Sun Yourself
03:42 - HDRI Lighting
04:53 - Scene Lighting
05:19 - Adding and Moving the Light
06:31 - Lighting Settings
17:16 - Three-Point Lighting
26:48 - Final Result
27:36 - Three Point Light Tips
28:59 - Add-on Products
31:31 - Outro