Another update on the render pass, I found out that in IRAY under render settings → Canvas → drop down and select the material ID. This give the auto color mask render pass which is separated by material and the AA is amazing which I personally find the most useful and what I am looking for, only that rendering in IRAY is so resources heavy that in most scene I have trouble even switching to this mode on my 10Gb rtx 3080 but if anyone have better hardware resources then this is a solution. I do hope the developer can develop this option for path tracer mode.
