Terrain Documentation

It says that when you resize a terrain it should not be larger than 4096 Killometers. I think it meant meters.

(https://docs.aws.amazon.com/lumberyard/latest/userguide/terrain-heightmap-intro.html) » Resizing a Terrain Heightmap

Resizing a Terrain Heightmap

Resizing the terrain heightmap involves changing the resolution of your heightmap. Terrain size is determined by multiplying heightmap by meters per texel. When resizing, this value should not exceed 4096x4096 kilometers.

Meters per texel is the distance in meters between two vertices on the grid. So a value of two means there is a grid point every two meters. You can use larger values to create a larger terrain, but it is less detailed for the same heightmap resolution.

To resize a heightmap

  1. In Lumberyard Editor, click Game , Terrain , Resize Terrain .
  2. For Heightmap Resolution , select the desired value.
  3. For Meters Per Texel , select the desired value.
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Thank you for spotting this and taking the time to post. I have logged this issue.