How to place my own tree model

Blender3D objects used as trees / detail in Unity3D terrain (See the second half of this response)

When I work in Blender3D for Unity3D use, I follow these organizational rules:

  • use Empty Blender Objects as folders: they come out as an extra GameObject

  • ALWAYS parent everything to a single Empty, even a single object

  • put as few objects in a given .blend file as possible, combining them in Unity into a prefab

  • REMOVE unnecessary items (Light, Camera, etc.)

  • use good names for your Blender3D objects and NEVER RENAME them after Unity sees them

  • don’t even think about final Materials or Textures in Blender. Set the mesh to use N different materials, but always set up the materials within Unity and disregard what gets imported.