1- I create a HDA inside Houdini. The only thing that it does is to receive a Landscape input and add noise to it. Thats it.
2- Once in Unreal, I create a new scene and add a landscape to it. Just a simple landscape and hit the Create button. No editing, no nothing, as simple as it gets.
3- I then import and drop the HDA into the scene, assign the landscape to the HDA.
4 - HDA creates a new landscape with the result. The scene ends up having 2 landscapes, the original and the result of the HDA.
UE4 HDA landscape workflow2381 3 1
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