But, you are talking about exporting one huge file. I guess in that case it would take so long.
I was talking about for example partitioning my 8 heightmaps into 4k versions. Then individually import this 4k versions into a GIS program and modify them there one by one. So I would be exporting only one of these 4k tiles. Then I would import them into Houdini also 1 by 1 and finally into blender the same way.
Maybe I am misinterpreting the workflow, but done by parts it wouldn’t look like I need command line tools?
Also, could you explain what would we do in GIS? I mean, I already have the heightmaps (8 in total that I would crop to 4k each using GISMO which is 16bit), so if I imported them into a terrain software (GAEA, Houdini,etc.) it should already generate the meshes right?
Am I missing something?