Make terrain flat at runtime

Question

Are there any simple ways to do this? I looked around a lot and couldn't find anything helpful. I'm not very experienced with unity terrain and I need a quick way to make it flat at runtime, through code. Thanks in advance!

Answer 1

Best Answer

Answer by Positive7 · Aug 08, 2015 at 10:38 PM

 using UnityEngine;
 
 public class test : MonoBehaviour {
 
     public Terrain terrain;
     int terrainX; 
     int terrainY;
 
     void Awake(){
         terrainX = terrain.terrainData.heightmapWidth;
         terrainY = terrain.terrainData.heightmapHeight;
         var heights = terrain.terrainData.GetHeights(0, 0, terrainX, terrainY);
 
         for (int x = 0; x < terrainX; x++) {
             for (int y = 0; y < terrainY; y++) {
                 heights[x,y] = 0;
             }
         }
         terrain.terrainData.SetHeights(0, 0, heights);
     }
 }

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Caiovvs · Aug 08, 2015 at 11:15 PM 0

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It works! Thank you very much!

Answer 2

Answer by peturhelgi · Jul 07, 2019 at 06:12 AM

A bit late response, but I ran into this problem and ended up here. If you set the terrain's heightmapResolution, the terrain data is lost, i.e. it gets flat. I don't know what it does with its properties, but it gets the job done.

 terrain.terrainData.heightMapResolution = yourValue;

Just know that it rounds it to the nearest (correct me if I'm wrong) resolution of (2^n)+1;

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Make terrain flat at runtime

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