Store in Curve>pattern>possible?

I noticed yesterday that if you input stuff into the green nodes on a curve that information is stored with the curve somehow. What I am wondering if it is possible to store a pattern in a curve and then use that to 'texture' say the individual blocks of a Block component? I know this might not make sense the way I am saying it but I was playing with a greeble 'city' of sorts and was wondering if I could 'texture' the individual house roofs for example. Anyway here is a simple image. It 'seems' like the gradient is applied to individual blocks but I'm not sure. I thought it might be possible to increase the complexity of the greeble output somehwta.

Anyway hopefully you understand - the ideas are clearer in the brain but always come out mushed when I try to explain.