Answered: RMA Packed Channels?

Visceral

Hey there, i have been fiddeling around with Quixel Suite and UE4 for a while now trying to get the most out of material functions. But there is something that still confuses me greatly when i setup my materials.
When i export RMA packed from quixel, what channel ends up beeing what map exactly? I cant really tell from within unreal.

To me it seems like (R) Might be Albedo or Roughness, while (G) Has to be Metalness and (B) looks alot like (R) but maybe a higher tint, is there anyone that can just clear this up for me?

mrdesson

Open the reflection map in photoshop and you'll see which one is what

Visceral

mrdesson said:

Open the reflection map in photoshop and you'll see which one is what

Well i can certainly see the different channels one by one, but that i could do in Unreal aswell.
But im guessing (R)Albedo(G)Metal(B)Rough ?

mrdesson

Yeah, I think so, unless my memory is failing me

mrdesson

But if you are uncertain then as I said you can see which map is in which channel in photoshop, thus giving you a 100% correct answer

Visceral

mrdesson said:

But if you are uncertain then as I said you can see which map is in which channel in photoshop, thus giving you a 100% correct answer

What ? No thats the whole problem, i can see the map channels but i dont know what slot they correspond to. Thats the whole issue. It dosnt say anywhere.

mrdesson

Visceral said:

mrdesson said:

But if you are uncertain then as I said you can see which map is in which channel in photoshop, thus giving you a 100% correct answer

What ? No thats the whole problem, i can see the map channels but i dont know what slot they correspond to. Thats the whole issue. It dosnt say anywhere.

Yes it does, if you open the reflection map that you have exported you'll see if you go to "channels" next to "layers" in photoshop, it says RED, GREEN and BLUE. If you click either of them you'll recognize which one it is and then you can assign the correct one to the correct slot in unreal.

Synaesthesia

Hey Visceral!

RMA stands for Roughness - Metalness - Ambient Occlusion. It's 1-1 with RGB. Red is Roughness, Green is Metalness, and Blue is Ambient Occlusion.  

Visceral

Synaesthesia said:

Hey Visceral!

RMA stands for Roughness - Metalness - Ambient Occlusion. It's 1-1 with RGB. Red is Roughness, Green is Metalness, and Blue is Ambient Occlusion.  

Thanks alot, just what i was looking for, cheers!