This adds support the HFMesh support for UE5 Preview 1. But due to a bug in that engine version, HFMesh is not working anymore.
The new UE5 version doesn't have the "world displacement" wire in Materia attributes. So, we had to use an alternative. We pick world position offset (WPO). Due to that, we cannot displace the landscape with WPO. But that's fine for landscapes. We won't use WPO for landscapes.
This adds support the HFMesh support for UE5 Preview 1. But due to a bug in that engine version, HFMesh is not working anymore.
The new UE5 version doesn't have the "world displacement" wire in Materia attributes. So, we had to use an alternative. We pick world position offset (WPO). Due to that, we cannot displace the landscape with WPO. But that's fine for landscapes. We won't use WPO for landscapes.