ivy base on leaves.
NextPCG SpeedTree Smooth Normal Baker
The normals coming with the leaf geometry often results in a messy and disorganized appearance, causing the leaves to look very ugly. SpeedTree comes with a spherical normal feature that can smooth these normals. The spherical normals of SpeedTree tend to flatten out the details and levels between different leaf clusters, and they are too far from the original geometry's shape, leading to many coloring issues.
When the externally merged terrain is imported into the engine's landscape containing the Editor Layer, it can add the additional heightmap and mask layers exported from the terrain software.
Import terrains by region, supporting default configuration of dimensions based on image size and terrain grid size, as well as rotation and scaling. Also supports adjusting the import range (i.e., gradient range size) via ccurves.
Implements an EditLayer override approach that enables layered modifications from external plugins and those made within the engine.