best terrain editor for blitz?

Blitz3D Forums/Blitz3D Programming/best terrain editor for blitz?

Me is writing a own terrain engine. Heres a link for a 5000x5000 area.

it renders as you walk around.. in realtime.

http://www.voidrpg.com/QueRenderEngine.zip
you may use source as you wish. 2 exe is included.

to generate height map i use GIMP.