Babybus-u3d技术交流-Dynamic RayCast System 动态网格碰撞体

using UnityEngine;
using System.Collections;

[RequireComponent(typeof(SkinnedMeshRenderer), typeof(MeshCollider))]
public class DynamicMeshCollider : MonoBehaviour
{
    private SkinnedMeshRenderer skinnedMeshRenderer;
    private Mesh mesh;

    // Use this for initialization
    void Awake()
    {
        skinnedMeshRenderer = GetComponent<SkinnedMeshRenderer>();

        mesh = Instantiate(skinnedMeshRenderer.sharedMesh) as Mesh;

        GetComponent<MeshCollider>().sharedMesh = mesh;
    }

    // Update is called once per frame
    void Update()
    {
        skinnedMeshRenderer.BakeMesh(mesh);
    }
}    

比assetstore上的这玩意好用
[https://www.assetstore.unity3d.com/en/#!/content/20844

使用须知：
放在SkinnedMeshRenderer组件旁边即可。
Animator组件需要enable状态，上面也要有对应的动画控制器（Animator Controller）。