Version: 2017.2
public float treeDistance ;

설명

The maximum distance at which trees are rendered.

The higher this is, the further the distance trees can be seen and the slower it will run.

See Also: Terrain.treeBillboardDistance.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { void Start() { Terrain.activeTerrain.treeDistance = 2000; } }