Save terrain grass placement data

Unity Engine
1

Hi,

I have no idea how to save Unity terrain grass placement data. I can store every other data but not this. Here’s my code

TerrainData tdata = new TerrainData ();
         tdata.heightmapResolution = ter.terrainData.heightmapResolution;
         tdata.size = ter.terrainData.size;
         tdata.alphamapResolution = ter.terrainData.alphamapResolution;
         tdata.baseMapResolution = ter.terrainData.baseMapResolution;
           
         tdata.SetDetailResolution (ter.terrainData.detailResolution, 8);
         // Generate the heightmap
         tdata.SetHeights (0, 0, ter.terrainData.GetHeights (0, 0, ter.terrainData.heightmapWidth, ter.terrainData.heightmapHeight));
       
         tdata.splatPrototypes = ter.terrainData.splatPrototypes;
       
         tdata.treePrototypes = ter.terrainData.treePrototypes;
         tdata.treeInstances = ter.terrainData.treeInstances;
         tdata.wavingGrassAmount = ter.terrainData.wavingGrassAmount;
         tdata.wavingGrassSpeed = ter.terrainData.wavingGrassSpeed;
         tdata.wavingGrassStrength = ter.terrainData.wavingGrassStrength;
         tdata.wavingGrassTint = ter.terrainData.wavingGrassTint;
         tdata.GetDetailLayer(0, 0, ter.terrainData.detailWidth, ter.terrainData.detailHeight, 0);
       
         AssetDatabase.CreateAsset(tdata, "Assets/Terrains/"+ter.name+".asset");
         AssetDatabase.SaveAssets();
       
       
       
         // Now if we have splatmaps for this terrain, time to load them
         float[,,] splatarray = ter.terrainData.GetAlphamaps(0,0,ter.terrainData.alphamapWidth-1, ter.terrainData.alphamapHeight-1);
         SplatPrototype[] prototypes = ter.terrainData.splatPrototypes;
         Debug.Log (ter.terrainData.detailPrototypes.Length);
         details = new List<DetailPrototype>();
         for(int i = 0; i < ter.terrainData.detailPrototypes.Length; i++) {
             DetailPrototype prototype = new DetailPrototype();
             prototype.prototype = ter.terrainData.detailPrototypes.prototype;
             prototype.prototypeTexture = ter.terrainData.detailPrototypes.prototypeTexture;
             prototype.dryColor = ter.terrainData.detailPrototypes.dryColor;
             prototype.healthyColor = ter.terrainData.detailPrototypes.healthyColor;
             prototype.noiseSpread = ter.terrainData.detailPrototypes.noiseSpread;
             prototype.renderMode = ter.terrainData.detailPrototypes.renderMode;
             prototype.usePrototypeMesh = ter.terrainData.detailPrototypes.usePrototypeMesh;
             prototype.minWidth = ter.terrainData.detailPrototypes.minWidth;
             prototype.maxWidth = ter.terrainData.detailPrototypes.maxWidth;
             prototype.minHeight = ter.terrainData.detailPrototypes.minHeight;
             prototype.maxHeight = ter.terrainData.detailPrototypes.maxHeight;
             details.Add(prototype);
         }
         TerrainData td = (TerrainData)AssetDatabase.LoadAssetAtPath("Assets/Terrains/"+ter.name+".asset", typeof(TerrainData));
       
       
         td.splatPrototypes = prototypes;
         td.detailPrototypes = details.ToArray();
         td.RefreshPrototypes ();
         td.SetAlphamaps (0, 0, splatarray);
       
         AssetDatabase.SaveAssets();
         AssetDatabase.Refresh();
       
         Debug.Log (td.detailPrototypes.Length);
         ter.GetComponent<Terrain> ().terrainData = td;
         ter.GetComponent<TerrainCollider> ().terrainData = td;
2

Hmmm… Is there such possibility?