Minimap Without Image

I’m trying to put a camera in my player as mini map, because my environment is not flat, that is, I could not make an image of a curved area.

I would like to show a camera above the player as mini map.

How can I do it ?

I put a image :


UPDATED 06/01/2016, 21:32
NOTE : I can simulated camera visor in UMG ?**