UnityEditor.TerrainInspector.ResizeDetailResolution C# (CSharp) Method

        private void ResizeDetailResolution(TerrainData terrainData, int resolution, int resolutionPerPatch)
        {
            if (resolution == terrainData.detailResolution)
            {
                List<int[,]> list = new List<int[,]>();
                for (int i = 0; i < terrainData.detailPrototypes.Length; i++)
                {
                    list.Add(terrainData.GetDetailLayer(0, 0, terrainData.detailWidth, terrainData.detailHeight, i));
                }
                terrainData.SetDetailResolution(resolution, resolutionPerPatch);
                for (int j = 0; j < list.Count; j++)
                {
                    terrainData.SetDetailLayer(0, 0, j, list[j]);
                }
            }
            else
            {
                terrainData.SetDetailResolution(resolution, resolutionPerPatch);
            }
        }