Hi, RAF Blackace.
I have this setting in every file I make due to some good advice from Volker Harun, read on...
Volker opened my eyes to the great idea of having a heightfield to signify a size in the 3D preview window that is easily recognisable on every opening of a scene...
I never(that is rarely) move my default camera position in Terragen.
This means I'll consistently have a static camera that will be in this position(so I can see new object imports, etc to the TG world,), that I will build my entire scene around. I always fit my scene to my camera, instead of the other way around.
Plus I always can control the sun(etc) easily from a Northern looking POV. You know, so the camera is consistently looking forwards but scene elements will change in accordance to this.
I completely understand that people aren't as methodical with TG2 as I am, I just like things in proper order.
So, Generally, the '100m2 heightfield' can be deleted from ALL of my shared files here. It serves no purpose, other than to relate to me what size my scene is.
Generally, the 100m2 terrain heightfield is ONLY a bounding box that signifies size to me in my 3D preview, nothing more. Sorry if this has confused anyone.