I think its gonna be too big. I did a ‘huge’ terrain test with the Grand Canyon, I did one 12k x 12k x 2k chunk and the game is over 64MB in storage. With my 5mbit upload internet speed it takes almost 2 minutes to upload it, so every time I want to save a change, I wait 2 min. With streaming enabled players get pretty decent performance but your map is way bigger.
I haven’t seen any heightmap based run-time terrain generator examples, but that would be cool.
What I had to end up doing to make my ‘world’ bigger was to have space between islands of terrain.
I found it rather challenging to generate a heightmap from real world data that’s small enough(in area) and still high enough in detail for 1:1 scale use in Roblox.
You can check it out here, the terrain is pretty epic though, even at probably 1/2 scale, maybe:
https://www.roblox.com/games/6410195728/Grand-Canyon-Terrain-Test-flight
