Large Terrain Maps

[AW999]

In order to have a fairly large map, I need to have only a portion of the terrain in memory at a given time, and then update it as the user moves. I'm wondering whether it's better to : a) have a single object for the in-memory terrain and then add and subtract triangles from the sides as the user moves (is it possible to subtract triangles?); or b) divide the in-memory terrain into several chunks, each of which is a separate Object3D, and then when the user moves too far in a given direction, reposition these objects while deleting the chunks which are now well beyond the viewable area and adding new chunks on the other side. c) Is there a third option?

[EgonOlsen]

You can't remove triangles from an Object3D, at least not directly. I think that splitting it into several Object3Ds would be the best solution. Maybe it's possible to use one Object3D and an IVertexController/PolygonManager-combination to manipulate the Object3D's data, but that seems pretty difficult to me and maybe not worth it.