Interesting idea, but I'd prefer to keep fully square axis-aligned 2D tiles. My game doesn't have dynamic lighting or shadows, just shadowmaps and lightmaps applied to tiles.

One possibility is perhaps creating 3D models of hills with proper lighting, and then rendering them to an image, and breaking that up into tiles and tilesets. It's something I might look into.

Interesting idea, but I'd prefer to keep fully square axis-aligned 2D tiles. My game doesn't have dynamic lighting or shadows, just shadowmaps and lightmaps applied to tiles.

One possibility is perhaps creating 3D models of hills with proper lighting, and then rendering them to an image, and breaking that up into tiles. It's something I might look into.