I want to render very pretty smooth undulating hills. There are objects snuggled between these hills, so I can't really use naive bump-mapping.
I am currently rendering using a very detailed mesh that I generate myself. Its a lot of very small triangles.
Are there other approaches? What is the current viability of displacement mapping, for example?
I would like to run on mainstream hardware, including integrated graphics, and possibly even one day across to tablets and such.