How to change the scale of the Landscape?

Development Asset Creation
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1

I want to change the scale of a landscape I’ve already created, but changing the object scale crashes the editor, so I can’t do it. The landscape is copied from another project and has no materials set.

How can I change the scale of such a landscape?

2

Hi, the editor should not crash when you change the scale of the landscape, so the landscape or the project might be corrupted. Another way you could ‘rescale‘ the landscape would be to export its heightmap, then create a new landscape from that heightmap and set the scale when creating the landscape. Otherwise you could also rescale the heightmap in some image editing program that can work with 16 bit images like gimp, and then create a new landscape from that rescaled heightmap.

3

Have you tried rebuilding the landscape with the landscape editor then scaling?

Note, I’ve found scaling landscape with the gizmo/sliding the x,y,z values in the editor panel seems to be pretty heavy, though I’ve never experienced a crash. I’ve noticed manually punching in numbers to the vector values is a little smoother

4

Well this was a fallback since exporting heightmaps didn’t work.
It’s a direct copy from a commercially available asset. I don’t know how it was created, but at least it was sculptable with the Landscape tool.

I’ll attach the assets and the error message. The problem landscape is the inside of the central 2x2km grid of the map Showcase_afghan_1.

Assertion failed: X1 == OriginalX1 && Y1 == OriginalY1 && X2 == OriginalX2 && Y2 == OriginalY2 [File:D:\build\++UE5\Sync\Engine\Source\Runtime\Landscape\Private\LandscapeEditInterface.cpp] [Line: 563] 



UnrealEditor_Core
UnrealEditor_Landscape
UnrealEditor_Landscape
UnrealEditor_CoreUObject
UnrealEditor_DetailCustomizations
UnrealEditor_DetailCustomizations
UnrealEditor_DetailCustomizations
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_Slate
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
UnrealEditor_ApplicationCore
user32
user32
UnrealEditor_ApplicationCore
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
UnrealEditor
kernel32
ntdll
5

I was able to scale it using the 3D manipulator. I didn’t feel any particular load when scaling. However, if i enter or slide the scale value in the details panel, the editor will crash.

I don’t know much about rebuilding, but when I ran a landscape build, it didn’t seem to do anything in particular.