Terrain.heightmapMaximumLOD

説明

Limits the maximum resolution the terrain can be rendered at.

This can be used on low end cards to never display the highest lod terrain. A value of 0 for this property allows the terrain to be shown at the highest detail. A value of 1 reduces the maximum triangle count to one-fourth of its current value and halves the width and height of the heightmap resolution.

                        
using UnityEngine;

public class Example : MonoBehaviour
{
    void Start()
    {
        Terrain.activeTerrain.heightmapMaximumLOD = 1;
    }
}