原本想使用插件來做，奈何囊中羞澀，只能自己寫了。通過Value值修改高度。效果圖：

image

代碼：

using UnityEngine;
using System.Collections;
using UnityEngine;
using System.Collections;

public class cube : MonoBehaviour
{
    private Vector3[] vertices;
    private Mesh mesh;
    [Range(0, 10)]
    public float value = 1;//設(shè)置高度值
    // Use this for initialization
    void Start()
    {
        vertices = GetComponent<MeshFilter>().mesh.vertices;//獲取Gameobject meshfilter組件
        mesh = GetComponent<MeshFilter>().mesh;//獲取meshfilter組件中mesh數(shù)組數(shù)據(jù)
    }

    // Update is called once per frame
    void Update()
    {
        for (int i = 0; i < vertices.Length; i++)//遍歷數(shù)組
        {

            if (vertices[i].y >= 0f)//判斷mesh是否為頂部
            {
                vertices[i].y = value;//設(shè)置mesh頂部高度等于高度值
            }
        }
        mesh.vertices = vertices;//刷新
    }
}

項目地址：https://github.com/baishuisr1/Unity-3D-Chart