Z Fighting Problem

Questions & Answers
1

I have a bunch of planes with alpha textures attached to them. THey are seperated in the Z and do not collide at all. Whe I run in game mode the layers bug out and fight with each other for draw order and flicker back and forth. Any ideas?

2

Make the camera's near clip plane as big as possible, and the far clip plane as small as possible, so the depth buffer's precision isn't wasted.

3

Here is a video about unity depth shader workarounds:

also his tutorial 6.2 and 6.3 are all about depth…

and this unity resource:
http://unity3d.com/support/documentation/Components/SL-CullAndDepth.html

Here is a Ton of info about it with 3 solutions:

4

I have ended with a custom-non-optimal-solution that at least works for me. I add a “ZFighter” component to any GameObject which I want to get a little bit distanced from a back object/wall. This separation is calculated according to Camera distance.

`

using UnityEngine;
using System.Collections;

public class ZFighter : MonoBehaviour {

	// Use this for initialization
	private Vector3 lastLocalPosition;
	private Vector3 lastCamPos;
	private Vector3 lastPos;

   	void Start () {
		lastLocalPosition = transform.localPosition;
		lastPos = transform.position;
		lastCamPos = Camera.main.transform.position - Vector3.up; // just to force update on first frame
	}
	
 	void Update () {
		Vector3 camPos = Camera.main.transform.position;
		if (camPos != lastCamPos || transform.position != lastPos) {
			lastCamPos = camPos;
			transform.localPosition = lastLocalPosition + (camPos - transform.position) * 0.01f;
			lastPos = transform.position;
		}
	}
}

`