User from the past (me) has returned...

Hi all. I used to do lot of 3D utilizing Poser and Lightwave. I decided to take it up again recently, and am using Daz Studio 4.9.
So it's been awhile. What's all this Iray stuff about? I have Genesis 3 and Victoria 7, but what if I see something I like that is for Genesis 2? Is that hard to adapt?
I will have more questions, but those are for starters....
Comments
There's a base Iray material set for the Geensis 2 figures, so at worst you can hold down ctrl(Win)/cmd(Mac) while applying that and choose ignore fpor maps to apply the settings. But geenrally the 3Delight to Iray conversion works fairly well.