Physics.IgnoreCollision 忽略碰撞

# [Physics](Physics.html).IgnoreCollision 忽略碰撞

static function *IgnoreCollision* (*collider1* : [Collider](../Collider/Collider.html), *collider2* : [Collider](../Collider/Collider.html), *ignore* : bool = true) :
void

*Description* 描述

Makes the collision detection system ignore all collisions between collider1
and collider2.

使碰撞体 1 和碰撞体 2 的碰撞侦测无效。

This is most useful for making eg. projectiles not collide with the object
shooting them.

如果要忽略炮弹和发射物之间的碰撞侦测，这种情况下是很有用的。

IgnoreCollision has a few limitations: 1) It is not persistent. This means
ignore collision state will not be stored in the editor when saving a scene. 2)
You can only apply the ignore collision to colliders in active game objects.
When deactivating the collider or attached rigidbody the IgnoreCollision state
will be lost and you have to call [Physics.IgnoreCollision](Physics.IgnoreCollision.html) again.

忽略碰撞情况下的限制：1. 保存场景时忽略状态不能保存。2.只能在活动的对象物体上应用。如果用在失效的物体上，必须要调用一次 physics.IgnoreCollision.

参见： [Physics.IgnoreLayerCollision](Physics.IgnoreLayerCollision.html)

* [C#](#)
* [JavaScript](#)

```
using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public Transform bulletPrefab;
	void Start() {
		Transform bullet = Instantiate(bulletPrefab) as Transform;
		Physics.IgnoreCollision(bullet.collider, collider);
	}
}
```

```
// Instantiate a bullet and make it ignore collisions with this object.
// 实例化一个子弹，忽略与发射体的碰撞。

var bulletPrefab : Transform;
function Start () {
	var bullet = Instantiate(bulletPrefab) as Transform;
	Physics.IgnoreCollision(bullet.collider, collider);
}
```