Attempting to make a very large & low detailed map with a high detail center

Questions & Answers
1

Basically in the game for class I am making, it consists of a flyover opening sequence that zooms to the characters head. The zoom over goes over a lot of low detailed space from high up, and the character itself can see out across the low detail landscape but is stuck in the high detail area. Is there a way to keep terrain detail high in a confined area and low detail blocks of terrain all around it?

Thank you for your time.

2

Terrain does this by default. As terrain gets further from the camera, its polygon count lowers.

You can change the pixel error to make this effect lesser or greater.