效果图，真的很叼啊
我根据别人的改进了一版，支持MeshFilter上的Mesh（需要确保Mesh的Read/Write是开启的否则不能正常工作）
非常感谢原作者给提供思路。http://blog.csdn.net/langresser_king/article/details/50976029
代码
using UnityEngine;
using System.Collections;
using System.Collections.Generic; //残影特效，支持Mesh和SkinedMesh以及他俩组合
public class GhostEffect : MonoBehaviour
{
//如果让Mesh也带残影请保证Mesh的Read/Write是开启的
public bool IncludeMeshFilter = true; //残影
public class GhostImange
{
public Mesh mesh;
public Material material;
public Matrix4x4 matrix;
public float duration;
public float time;
} //材质
public Material EffectMaterial; //总时长
public float Duration = 5; //产生残影的间隔
public float Interval = 0.2f; //残影淡出时间
public float FadeoutTime = 1; private float mTime = 5;
private List<GhostImange> mImageList = new List<GhostImange>(); void Start()
{ } [ContextMenu("Play")]
public void Play()
{
mTime = Duration;
StartCoroutine(AddImage());
} IEnumerator AddImage()
{
while (mTime > 0)
{
CreateImage();
yield return new WaitForSeconds(Interval);
mTime -= Interval;
}
} void CreateImage()
{
SkinnedMeshRenderer[] skinRenderers = GetComponentsInChildren<SkinnedMeshRenderer>();
MeshFilter[] filters = null; int filtersCount = 0; if (IncludeMeshFilter)
{
filters = GetComponentsInChildren<MeshFilter>();
filtersCount = filters.Length;
} if (skinRenderers.Length+filtersCount <= 0)
{
return;
} CombineInstance[] combineInstances = new CombineInstance[skinRenderers.Length + filtersCount]; int idx = 0;
for (int i = 0; i < skinRenderers.Length; i++)
{
var render = skinRenderers[i]; var mesh = new Mesh();
render.BakeMesh(mesh); combineInstances[idx] = new CombineInstance
{
mesh = mesh,
transform = render.gameObject.transform.localToWorldMatrix,
subMeshIndex = 0
}; idx++;
} for (int i = 0; i < filtersCount; i++)
{
var render = filters[i]; var temp = (null != render.sharedMesh) ? render.sharedMesh : render.mesh;
var mesh = (Mesh)Object.Instantiate(temp);
combineInstances[idx] = new CombineInstance
{
mesh = mesh,
transform = render.gameObject.transform.localToWorldMatrix,
subMeshIndex = 0
}; idx++;
} Mesh combinedMesh = new Mesh();
combinedMesh.CombineMeshes(combineInstances, true, true); mImageList.Add(new GhostImange
{
mesh = combinedMesh,
material = new Material(EffectMaterial),
time = FadeoutTime,
duration = FadeoutTime,
});
} void LateUpdate()
{ bool needRemove = false; foreach (var image in mImageList)
{
image.time -= Time.deltaTime;
if (image.material.HasProperty("_Color"))
{
Color color = Color.white;
color.a = Mathf.Max(0, image.time / image.duration);
image.material.SetColor("_Color", color);
} Graphics.DrawMesh(image.mesh, Matrix4x4.identity, image.material, gameObject.layer);
if(image.time<=0)
{
needRemove = true;
}
} if (needRemove)
{
mImageList.RemoveAll(x => x.time <= 0);
}
} }