Heightmap from BlenderGIS ?

[ros]

Hi guys,

I'm very interested for starting creating some tracks. I have discovered BlenderGIS plugin for Blender allowing retrieving heightmap data(as a 3D shape) with corresponding texture from almost any area in the world and with only few clicks. But as I'm really bad at Blender I'm wondering is somebody knows how I can now convert the heightmap "3D shape" to a grayscale bitmap from Blender so I can import it in L3DT.

I think that can be much simpler, and also more accurate, than importing heightmap from trangram.
More accurate because it seems data are the same used by Google Earth, and I guess this could avoid a lot of "rework" of the altitudes in L3DT as we need to do with data from tangram.

Any suggestions are welcome !

Thanks in advance for your reading and have a good ride !