My goal is to add procedural grass patches along the crevices of tiles. I have a tile pattern as below
So, is it possible to add noise along those black lines so that they can be colored green to give some grass patch effect?? To my knowledge I can only add Noise inside the black lines by using mix RGB node with fac as the tile pattern and noise node as one of the inputs as shown below.
. But this isn't what I need.. i need the noise to extend beyond the line boundaries a bit more (not just inside). Any ideas how to achieve this??