... A bump map is a black and white height map. A height map is a black and white bump map. See what I did there? Maybe you think the separate names mean something, but it's simply to connote what it's being applied to. Since Oblivion already used bump mapping, in the form of normal mapping (yes, normal mapping IS considered bump mapping), and we assume they will continue to use some form of bump mapping, they already have the displacement information available to them. Again, you can go between normal, bump, and height maps. And bump and height maps are completely identical.
They can still write tessellation shaders with the already-included bump map information for the highest-LOD models.
That's not true at all. They have to, you know, WRITE CODE in the process of porting it. They have to write PC-specific renderers no matter what, so it's their decision which DirectX to support.
Do you know much freaking time cost of money they would have to waste to make the game worthwhile in DX11 from DX9 ?
Do you think people knowing that its a DX 11 game would accept some as old as it can look DX9 features ?
Please stop and think before asking.
It would be almost cheaper for them to do a new game in DX11 if they want to bring the worthwhile feature in. And above all do you really think CONSOLE MARKET would allow that ? A plain show that their sistems svcks, and whoever has them is eating dust for years ? As if modding for PC ain t enought...
And anyway don t you know Companies works with the less effort possible to the more sellable result possible ?
So it will be DX9 because as it is a Console game ported to PC (Again) it will stay with console limitation. Be happy is your able to configure a moderm mouse to its fullest AND a moderm keyboards as well. Remember Oblivion ?
Now what next? You will come to ask Dragon to act and fight in a smart way and not like any other assinine monster that just rush in or isnt even able to work its magic correctly ? Or maybe a Radiant AI that perform smart and actually gives interesting non repetitive dialogs ?