Apparently I like to make ruined castles in my free time. The castle uses a tiling stone texture and a 1:1 baked normal map for the destroyed parts (on a second, optimized uv set, and a tri-planar projected texture for the crumbly bits, and a painted mask to control the transition). I actually used WorldMachine for terrain work, but really you can’t see that with all the foliage. The foliage was all done in Speedtree.
I’m not sure how to post a vid here, so here’s a link to the Artstation page w. the quick fly-through: https://www.artstation.com/artwork/B1y0G9