Camera.cullingMatrix

Description

Sets a custom matrix for the camera to use for all culling queries.

This lasts until it is disabled by calling ResetCullingMatrix.

A custom culling matrix can be useful in situations where multiple cameras must be culled identically in order to render effects such as reflections.

#pragma strict
var cullingCamera: Camera;
function Awake() {
	cullingCamera = gameObject.AddComponent.<Camera>();
	SetMainCameraCustomCullingMatrix(new Vector3(10.0f, 10.0f, 10.0f), Vector3.zero);
}
function SetMainCameraCustomCullingMatrix(cameraPosition: Vector3, lookAtPosition: Vector3) {
	transform.position = cameraPosition;
	transform.LookAt(lookAtPosition);
	Camera.main.cullingMatrix = cullingCamera.projectionMatrix * cullingCamera.worldToCameraMatrix;
}
function ResetMainCameraCullingMatrix() {
	Camera.main.ResetCullingMatrix();
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
	
	Camera cullingCamera;
	
	void Awake () {
	    cullingCamera = gameObject.AddComponent<Camera>();		
	    SetMainCameraCustomCullingMatrix (new Vector3 (10.0f, 10.0f, 10.0f), Vector3.zero);
	}
	
	void SetMainCameraCustomCullingMatrix (Vector3 cameraPosition, Vector3 lookAtPosition) {
	    transform.position = cameraPosition;
	    transform.LookAt (lookAtPosition);
	    Camera.main.cullingMatrix = cullingCamera.projectionMatrix * cullingCamera.worldToCameraMatrix;
	}
	
	void ResetMainCameraCullingMatrix () {	
	    Camera.main.ResetCullingMatrix();
	}
}