Hello
I am fairly new to using UE5
I want to create a 70km² landscape / map for my open world game. Now I don’t even know how big the standard sizes in km² are that UE suggests.
For example
Scale: 100x100x100
Section size: 64x64
Section Per component: 2x2
Number of Components: 32x32
Overall Resolution: 4033x4033
Total Components: 1.024
Source:
Can someone tell me how I can calculate this or what I have to enter to get 70km²?
Hello Belugas-DE, let me help you with this.
I performed some calculations and believe these are correct.
Im use this page to calculate(and UE doc)
Steps:
We know that 70 km² is roughly a square of 8.4 km x 8.4 km (because √70 ≈ 8.4).
Convert km to meters:
8.4 km = 8400 meters
Unreal Engine landscapes are built using heightmap resolutions that follow specific sizes.
In the calculator, look for an option with a real-world size close to 8400m.
The closest match is 8129 x 8129 pixels, covering 8129m x 8129m.
Result:
If you choose 8129 x 8129, the real-world size will be ~8.1 km x 8.1 km, which is very close to the 8.4 km x 8.4 km target.
Since 8129 meters is slightly smaller than 8400 meters, you need to scale up the landscape in Unreal Engine.
Scale=( Actual Heightmap Size / Desired Size in Meters)×100
Scale=( 8129 / 8400)×100≈103.3
In Unreal Engine, when creating the landscape, set the scale to:
X: 103.3
Y: 103.3
Z: 100 (Z depends on the terrain height; adjust as needed)
