Well like I said I'm using TerraDome3 which has it's own hdri for the lighting. My settings in iray are under progressive, min samples 0, max samples 12000, max time 20000, and converged at 100%. On filtering I have Noise Filter enabled with degrain filter at 2, degrain radius at 4, and degrain blur at 1. I let it render overnight and this is what I got:

So like I said noob on iray, hopefully someone can help me out, pweeeese