直接放到相机上用即可，可以有效降低锯齿(相对于其他插件而言)，另外这个脚本跟NatCorder录制视频冲突，具体原因后续再详查。

最近突然发现PC端用Antialiasing修改窗口分辨率时会黑屏，后来发现是每次修改分辨率时会Restart一次，也就是StopAntialiasing再StartAntialiasing。但是因为放在同一帧数执行导致了黑屏，对Restart函数稍作修改，修复了黑屏的bug。

using System.Collections;
using System;
using System.Collections.Generic;
using UnityEngine;public class Antialiasing : MonoBehaviour
{private static GameObject renderTargetCam;private static TextureRenderer textureRenderer;private static RenderTexture renderTexture;public static float scale = 2;private Camera mainCam;private int screenX;private int screenY;private int targetX = 100;private int targetY = 100;private int hideFlagDontShowSave = 61;public bool restart;private bool rendering;public static RenderTextureFormat Format = RenderTextureFormat.ARGB32;public static GameObject RenderTargetCamera{get{return Antialiasing.renderTargetCam;}}public static RenderTexture RenderTexture{get{return Antialiasing.renderTexture;}}public Camera RenderingCamera{get{return this.mainCam;}}private void OnEnable(){this.mainCam = base.GetComponent<Camera>();if (this.mainCam == null){Debug.LogError("Missing Camera on GameObject!");base.enabled = false;return;}this.hideFlagDontShowSave = 13;this.targetX = Screen.width;this.targetY = Screen.height;//new Shader();if (Application.isEditor){this.restart = true;return;}this.StartAntialiasing();}private void OnDisable(){this.StopAntialiasing();}private void Update(){if (this.screenX != Screen.width || this.screenY != Screen.height){this.restart = true;}if (this.restart){this.Restart();}}private void Restart(){this.StopAntialiasing();StartCoroutine(IERestart());this.restart = false;}private IEnumerator IERestart(){yield return new WaitForEndOfFrame();this.StartAntialiasing();}private void OnPreCull(){if (this.rendering && (this.screenX != Screen.width || this.screenY != Screen.height)){this.targetX = Screen.width;this.targetY = Screen.height;this.restart = true;}if (this.rendering){this.mainCam.targetTexture = Antialiasing.renderTexture;}}private void FinishedRendering(){if (this.rendering){this.mainCam.targetTexture = null;}}public void StartAntialiasing(){if (this.mainCam == null){Debug.LogError("Missing Camera on Object!");return;}this.screenX = Screen.width;this.screenY = Screen.height;int num = (int)((float)Screen.width * Antialiasing.scale);int num2 = (int)((float)Screen.height * Antialiasing.scale);if (num <= 0){num = 100;}if (num2 <= 0){num2 = 100;}if (Antialiasing.renderTexture == null || Antialiasing.renderTexture.width != num || Antialiasing.renderTexture.height != num2){if (Antialiasing.renderTexture != null){Antialiasing.renderTexture.Release();}Antialiasing.renderTexture = new RenderTexture(num, num2, 2, Antialiasing.Format);Antialiasing.renderTexture.name = "SSAARenderTarget";Antialiasing.renderTexture.hideFlags = (HideFlags)this.hideFlagDontShowSave;}if (Antialiasing.renderTargetCam == null){Antialiasing.renderTargetCam = new GameObject("SSAARenderTargetCamera");Antialiasing.renderTargetCam.hideFlags = (HideFlags)this.hideFlagDontShowSave;Camera c = Antialiasing.renderTargetCam.AddComponent<Camera>();c.CopyFrom(this.mainCam);c.cullingMask = 0;c.targetTexture = null;c.depth = this.mainCam.depth + 0.5f;Antialiasing.textureRenderer = Antialiasing.renderTargetCam.AddComponent<TextureRenderer>();Antialiasing.textureRenderer.hideFlags = (HideFlags)this.hideFlagDontShowSave;}this.rendering = true;}public void StopAntialiasing(){if (this.mainCam != null && this.mainCam.targetTexture != null){this.mainCam.targetTexture = null;}if (renderTargetCam != null){GameObject.Destroy(renderTargetCam);}this.rendering = false;}
}public class TextureRenderer : MonoBehaviour
{private Camera c;public bool stereoFirstPass = true;private void Awake(){this.c = gameObject.GetComponent<Camera>();if (this.c == null){Debug.LogError("TextureRenderer init fail! (no Camera)");base.enabled = false;}}private void OnRenderImage(RenderTexture source, RenderTexture destination){Graphics.Blit(Antialiasing.RenderTexture, destination);Antialiasing.RenderTexture.DiscardContents();}
}