Significant degradation in quality when a heightfield goes through a tile split

[DionBurgoyne]

If the user attempts to split their landscape up into smaller tiles, they will get a severe degradation in quality when the tiles come back to unreal. It appears that as of .408 the tile split node has changed

[dpernuit]

Hi,

Are the tiles properly sized? If all tiles don't match unreal's landscape size guides, then we need to resample them, which could have caused this issue.

https://docs.unrealengine.com/en-US/Engine/Landscape/TechnicalGuide/index.html#recommendedlandscapesizes

We use to pad the data by default but changed that to resample in beta2 to avoid issues with overlapping tiles when using shared landscape / streaming proxies.

[DionBurgoyne]

These are two nodes within houdini, I'm opening the scene in houdini and looking at the results between two nodes, the heightfield as it sits and after tiling, and the results are dramatically different

[DionBurgoyne]

Interestingly if I convert from tiled to single, and back to tiled, the results are identical