Unity3d 广告牌效果

来源：互联网发布：互联网金融java开发编辑：程序博客网时间：2024/04/27 15:17

旋转物体始终面向摄像机, Scene和Game 场景中都可以使用,

直接使用LookAt(...)方法的话会有问题,物体面向摄像机的同时会绕Z轴旋转, 解决方法就是改为, 不是面对摄像机而是面对摄像机所在的平面.

/// 始终面向摄像机/// </summary>public class SimpleBillboard : MonoBehaviour{    public bool IsStopInSceneView = false;    void OnDrawGizmos()    {        if (IsStopInSceneView == false && Application.isPlaying == false && SceneView.currentDrawingSceneView.camera != null)        {            Rot(SceneView.currentDrawingSceneView.camera.                transform);        }    }    void Update()    {          Rot(Camera.main.camera.transform);    }    void Rot(Transform target)    {        Plane plane = new Plane(target.forward, target.position);        float dis;        Vector3 tar = target.position;        if (plane.Raycast(new Ray(this.transform.position, -target.forward),out dis) == true)        {            tar = this.transform.position + (-target.forward * dis);        }        this.transform.LookAt(tar, Vector3.up);    }}

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