Only show Normal map on a decal

[hunter_williams]

I'd like to use a Megascans decal of some tire tracks and add them to a decal, however I only want the normal map visible.

Is this possible?

[hermit.crab]

The current way of doing this is to duplicate the original material (on the object you project onto), put it in a VRayBumpMtl, and use it for the VRayDecal. Check screencap. Otherwise, we are thinking of making it more intuitive (a simple checkbox in the VRayDecal).

EDIT: Logged an improvement request (internal bug-tracker id: VMAX-14250).

EDIT2: Pardon, you are using Maya, but it should be the same as in 3ds Max.

[hunter_williams]

Yeah I'm a little confused. Am I applying two materials to the decal?

Your Max screenshot looks like that (to me at least).

Edit: Is material 27 in that screenshot being applied to the ground plane and material 20 applied to the decal?

Edit: I think I figured it out: