Originally Posted by skupples
Wouldn't 7 or even vanilla 8 require an update to the OS to support things like tiled resources?
I think it should work on Win7 without anything special. Tiled Resources isn't a new concept...before DX11.2 it was something that had to be done in the graphics engine and they would easily get really heavy on memory usage if they weren't careful.
Dx11.2 just gives it a performance boost and cut down on memory since the API will let you stream a "Tile" or part of the texture rather than the entire texture at once. I am not a graphics engine programmer, but I think before the engine would just tell the API that what it was getting was the entire texture when it was just a tile and then just quickly hand it the rest of the tiles. So if tiles were used and didn't have DX11.2 or DX12 around it should just revert to the old way.
OpenGL also does something very similar, but to my knowledge it has never been used out side of a demo.