Unity 3D视差延迟

Question

我尝试使用Unity for Android（水平滚动游戏）制作2D游戏，并使用4个不同的图像制作背景场景。问题是地形： 当速度增加地形滞后时。游戏相机是静态的，只有图像xOffset被改变了。 FPS：70。

BackgroundOffset

public GameObject[] layers;

public float speed;
public float globalSpeed;

private float xOffsetClouds;
private float xOffset_01;
private float xOffset_02;
public float xOffsetTerrain;

Renderer rendererClouds;
Renderer renderer_01;
Renderer renderer_02;
Renderer rendererTerrain;

// Use this for initialization
void Start () {

    rendererClouds = layers[0].GetComponent<Renderer>();
    renderer_01 = layers[1].GetComponent<Renderer>();
    renderer_02 = layers[2].GetComponent<Renderer>();
    rendererTerrain = layers[3].GetComponent<Renderer>();

    rendererClouds.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(0, 0));
    renderer_01.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(0, 0));
    renderer_02.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(0, 0));
    rendererTerrain.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(0, 0));
}

public void MoveBackground()
{
    xOffsetClouds += Mathf.Repeat(Time.deltaTime * speed, 1);
    xOffset_01 += Mathf.Repeat(Time.deltaTime * speed * 1.3f, 1);
    xOffset_02 += Mathf.Repeat(Time.deltaTime * speed * 2, 1);
    xOffsetTerrain += Mathf.Repeat(Time.deltaTime * speed * globalSpeed, 1);

    rendererClouds.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(xOffsetClouds, 0));
    renderer_01.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(xOffset_01, 0));
    renderer_02.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(xOffset_02, 0));
    rendererTerrain.sharedMaterial.SetTextureOffset("_MainTex", new Vector2(xOffsetTerrain, 0));
}

图片设置：

  Image:      https://i.stack.imgur.com/4VP9k.png
  Material:   https://i.stack.imgur.com/qDPXr.png
  GameObject: https://i.stack.imgur.com/66JcD.png

提前感谢。