As of Houdini 17.5.369, the Unity plugin supports generating TreeInstances and DetailLayers when generating Unity Terrain from Houdini heightfields. The Heightfield scatter node can be used to create TreeInstances (for trees). And specific heightfield layers can be used as DetailLayers (for grass, shrubs, etc). The TreeInstances and DetailLayers allow to use large number of instances on your terrain, for better performance and memory.

The PDG workflow (using PDGAssetLink and HEU_GeoSync) support these as well.

Documentation here: https://www.sidefx.com/docs/unity/_terrain.html#Terrain_Scatterring [www.sidefx.com]

Feel free to ask questions or submit bugs if you find them.

Thank you to those who helped guide the design and test this.

Hi, I'm using these DetailLayers and I found that setting the DetailLayers's attributes was OK but generating not.

After I followed the documents' steps, there was no grass generated in Unity.

Will the grass be generated automatically just when the DetailLayer attributes set up? Need help!




PS: The attributes effected in Unity, but no grass.

Which version of Unity are you using? Also, please attach your hda so I can take a look.