Problem render the terrain drastic change camera location

Hi, I load terrain, actor and scenery, and I can move the actor and the camera, but when I position the camera suddenly the terrain is not rendered, while actor and scenery are rendered. What could be causing the problem?

You will need to give us more specific information about the precise nature of your problem.

David

I understand the problem, is caused by incorrect orientation of the camera that shows the boundaries of terrain

this position is correct …
Attore.set_hpr(-180, 0, 0);
camera.set_hpr(-180, 0, 0);
camera.set_pos(camera.get_pos().get_x(),-camera.get_pos().get_y(), 2);
to put the camera in a direction y opposite to that where it was?