On the Daz3d Forums, there is a freebie script out that will convert IRAY settings over to basic 3Delight. Unlike just using a basic conversion, this one will keep opacity and maps in their channels. But, you'll need to set up the settings and such.
This works great for working with making Masks with the Masks and Muliti Render tool. Also, for those using 3Delight or Reality.
https://www.daz3d.com/forums/discussion/139326/irayto3delight-conversion-script/p1