Usage instructions to follow:
For use with Unreal Engine 4 generated Heightmaps, pngs mainly, since I don't think ImageMagick handles r16 files.
$ ruby app.rb Filename PartitionCount
PartitionCount is just the number of pieces to split it into.
Example used by me for the largest UE4 Landscape
$ ruby app.rb Heightmap.png 16
generates a 16 * 16 grid of heightmaps, with a 1 pixel overlap.
Importing Into Unreal Engine 4
- Under [world composition(https://docs.unrealengine.com/latest/INT/Engine/LevelStreaming/WorldBrowser/index.html)], click import tiled landscape.
- Select every file in the output folder of this application
- Uncheck the invert(or was it rotate) y co-ordinates option
- Use a 0 tile co-ordinates offset, unless you know what you're doing. Using any value for this for me caused non-functional import results.
- As for weightmaps you're on your own, I would love for someone to pull request more useful instructions. I have what I have, as it's all I've figured out so far.
Depends on an operating system installation of ImageMagick
Also of course depends on typical ruby dependencies for installation.
On debian/ubuntu systems:
$ sudo apt-get install imagemagick
$ sudo apt-get install libmagickwand-dev
For Windows 10:
Just use the ubuntu for windows 10 feature, seriously. Guide: How to install it. External link on howtogeek.
For OSX:
Feedback would be kind, but here is what I could find. Stackexchange on the topic of RMagick deps. External link on stackoverflow.
For older windows versions:
You're on your own here