我用max的布料加风力制作了飘动的旗帜，并且把动画转为了关键贞，可是fbx导入u3d后没有反应，请教大家u3d怎样模拟布料，它自带的布料不能像旗帜一样有固定范围，

UV动画？

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布料系统 或者shader 或者顶点波动脚本~

用骨骼动画也行的。。。

某大神处窃来的代码：
#pragma strict
var scale = 2.0;
var speed = 2.0;
private var baseHeight : Vector3[];
var useOriginal : boolean = false;
function Update () {
var mesh : Mesh = GetComponent(MeshFilter).mesh;
if (baseHeight == null)
baseHeight = mesh.vertices;
// gameObject.Destroy(GetComponent(MeshCollider));
var vertices = new Vector3[baseHeight.Length];
for (var i=0;i<vertices.Length;i++)
{
var vertex = baseHeight[i];
if (useOriginal) {
vertex.y += Mathf.Sin(Time.time * speed+ baseHeight[i].x + baseHeight[i].y + baseHeight[i].z) * scale;
} else {
vertex.y += Mathf.Sin(Time.time * speed+ baseHeight[i].x + baseHeight[i].y) * (scale*.5) + Mathf.Sin(Time.time * speed+ baseHeight[i].z + baseHeight[i].y) * (scale*.5);
}
vertices[i] = vertex;
}
mesh.vertices = vertices;
mesh.RecalculateNormals();
gameObject.Destroy(GetComponent(MeshCollider));
var collider : MeshCollider = GetComponent(MeshCollider);
if (collider == null) {
collider = gameObject.AddComponent(MeshCollider);
collider.isTrigger = true;
}
}
新建一个plane，你把它挂上看看……

这思路，碉堡了……