koobas.hobune.stream
Increasing the size of terrain without destroying it.
So say I have a terrain that's 1000x1000 meters with mountains and such. I want to add 100 meters on the top and right sides of the terrain making the terrain 1100x1100, but I don't want any of the terrain already made in the 1000x1000 area to be affected.
How would I go about doing this? Would I have to export the heightmap into a raw file? If I did it that way how would I get the heightmap resolution to work correctly with it?
My desire is to be able to add onto my terrain when I wish. Does anyone have any idea how to do this?
I would do something like:
//for t is original terrain, make 2 new terrains t1, t2 of sizes
t1.width = t.width
t1.height = arb_1H
t2.width = arb_2W
t2.height = t.height + t1.height
//stitch them
Stitching terrains and having 4 different terrains = a very big drop in performance, rather than having 1 big one. This isn't an option.
Disclaimer: I am a complete noob in Unity and have not tested this suggestion.
I would try the following. First export the raw. Then open it in Photoshop, Gimp or an hightmap editor. Expand the image by 10% and fill/ paint the new area with desired hight /colour. Save as the edited image with a new name so we have a backup if it fails. Back in unity extend your terrain by your desired 100 units and import the hightmap.
From my understanding of the systems that should work.
