Texture Decay [Geo Nodes]
What if my object has more than one material assigned?
Unfortunately, this is one of the limitations of this modifier setup. However, separating the geometry by material and adding a TextureDecay modifier to each is a work around.
Does this work if my original texture is using a UV map?
Yes, simply re-assign the original material at the top of the 3DN-TextureDecay modifier and your texture will display the same way as before just with weathering over the top.