Idea for terrain texturing.

So whenever you "paint" a terrain, you can get a lot of tiling issues right? Say your standing on a mountain overlooking a plane of grass. The first thing that pops out is the tiling issues with the grass. Now you can overcome this by making the tiles bigger. There is actually a lot of ways, but I dont want to get into that.

so. In the terrain painter instead of just one texture called "grass", why not make it four textures. What you could do is make four very similar but different textures of grass, all tileable. So whenever you paint them it randomly generates one of the four tiles. That would get rid of the tiling issue completley. I have never seen an engine that has done this. How hard would it be to implement into torque?