將PerlinNoise映射到網格-有解無憂

我正在嘗試在我的地圖上生成一個網格并根據柏林噪聲值添加節點。根據從某個位置的 perlin 噪聲獲得的值，我將添加一個新節點，該節點將具有某種型別，例如 Mountain、Water 等來表示 terrian。在這里，我試圖使其值大于 0.5，這意味著它只有山脈，因此黑色立方體應該圍繞山區，但是，我的黑色立方體與柏林噪聲中的山區不匹配，我似乎無法弄清楚我為什么會出錯。希望能深入了解我如何實作這一目標。

private void LocateWalkableCells()
{
    for(int z = 0; z < Height; z  )
    {
        for(int x = 0; x < Width; x  )
        {
            noise = GetNoiseValue(x, z);
            if(noise > 0.5) {
                grid[x,z] = new Node(new Vector3(x, 0, z), TerrainType.Mountain, 1);
            } 
            else {
                grid[x,z] = new Node(new Vector3(x, 0, z), TerrainType.Grass, 1);
            }
        }
    }
}

private float GetNoiseValue(int x, int z)
{
    int pos = (x * Width)   z;
    return Mathf.Round(terrainGenerator.noiseArray[pos] * 10) / 10;
}

// Draw gizmos to visualize colour
void OnDrawGizmos()
{
    Gizmos.DrawWireCube(transform.position, new Vector3(Width, 1, Height));
    if(grid != null)
    {
        foreach(Node n in grid)
        {
            if(n.TerrainType == TerrainType.Grass)
            {
                Gizmos.color = Color.green;
            } 
            else if(n.TerrainType == TerrainType.Mountain)
            {
                Gizmos.color = Color.black;
            } 

            Gizmos.DrawCube(n.Position, Vector3.one * (nodeDiameter - .1f));
        }
    }
}

noiseArray在以下代碼中用于地形的頂點：

vertices = new Vector3[(Width   1) * (Depth   1)];
noiseArray = PerlinNoise();

int i = 0;
for(int z = 0; z <= Depth; z  )
{
    for(int x = 0; x <= Width; x  )
    {
        var currentHeight = noiseArray[i];

        if(currentHeight > HeightThreshold)
        {
            currentHeight *= HeightMultiplier;
        }

        vertices[i] = new Vector3(x, currentHeight, z);
        i  ;
    }
}