I've run out of ideas, so hoping someone can help.
I have a texture that is 'multiplying' itself on the background to pickup the shadows etc, using a Layer RGBA note.
So within the texture I have two 'images' one is the background set as input 1 and the desired image overlay (multiplied) as input 2.
The background (input1) needs to be Camera Mapped, but the image overlay (input2) needs to be UVW mapped.
I've tried making UWV sets and dragging them into the UV Coordinated section within the Arnold Material, but it doesn't work?
Any pointers or easier way to achieve this same effect?