Physics.RaycastAll 所有光线投射

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];
			System.Object renderer = hit.collider.renderer;
			if (renderer) {
				renderer.material.shader = Shader.Find("Transparent/Diffuse");
				renderer.material.color.a = 0.3F;
			}
			i++;
		}
	}
}

function Update () {
	var hits : RaycastHit[];
	hits = Physics.RaycastAll (transform.position, transform.forward, 100.0);

	// Change the material of all hit colliders 
	// to use a transparent Shader
	//改变所有碰到碰撞器的材质，使用透明的着色器
	for (var i = 0;i < hits.Length; i++) {
		var hit : RaycastHit = hits[i];
		var renderer = hit.collider.renderer;
		if (renderer) {
			renderer.material.shader = Shader.Find("Transparent/Diffuse");
			renderer.material.color.a = 0.3;
		}
	}
}