【Unity3d】火炬之光的X射线效果

http://www.cnblogs.com/dosomething/archive/2012/04/03/2431149.html

人物和摄像机之间存在例如墙壁等的阻挡时  可以修改阻挡材质的alpha呈现半透明状 

using UnityEngine;

using System.Collections;

 

public class example : MonoBehaviour {

    void Update() {

        RaycastHit[] hits;

        hits = Physics.RaycastAll(transform.position, transform.forward, 100.0F);

        int i = 0;

        while (i < hits.Length) {

            RaycastHit hit = hits[i];

            Renderer renderer = hit.collider.renderer;

            if (renderer) {

                renderer.material.shader = Shader.Find("Transparent/Diffuse");

                renderer.material.color = new Color(renderer.material.color.r,

                                                               renderer.material.color.g,

                                                               renderer.material.color.b,

                                                               0.3F);

            }

            i++;

        }

    }

}                               

也可以像火炬之光那样  显示人物的透视效果

绘制被遮挡部分 ZTest Off，  ZTest Greater

绘制未被遮挡部分 ZTest On， ZTest LEqual

效果