Unity 渲染管线自动转换的实现支持HDRP转URP，URP转HDRP

HDRP和URP无法平滑切换，因为属性、功能差异巨大。
本脚本仅对可对应的默认脚本和属性做了转换处理。细节调整还需自己搞。
自动转换可以节省手动更换shader、texture、通用属性的劳动成本。

操作步骤

使用前确保当前项目中存在HDRP和URP的包，没有请到packge manager中下载
将下方代码保存至Editor文件夹中，没有自己创建。

using System;
using System.Collections.Generic;
using System.IO;
using UnityEditor;
using UnityEngine;class HDRP2URPConverter : MonoBehaviour
{// 更新文件夹public static string root;private static List<TextureResource> m_textureResourceList;private static List<ShaderResource> m_shaderPairs;[MenuItem("转换管线/HDRP转URP")]static void HdrpToUrp(){ManualValidate();WalkthroughMaterials(root, ReplaceToUrp, GetURPShader);}[MenuItem("转换管线/URP转HDRP")]static void UrpToHdrp(){ManualValidate();WalkthroughMaterials(root, ReplaceToHDRP, GetHDRPShader);}private static string[] m_switchPropertiesList = new string[]{"_MainTex", "_BaseMap", "_BaseColorMap", "_BaseMap", "_NormalMap", "_BumpMap", "_AlphaCutoffEnabled", "_AlphaClip"};private static string[] m_shaderNameList = new[]{"HDRP/Lit", "Universal Render Pipeline/Lit", "HDRP/Unlit", "Universal Render Pipeline/Unlit"};[ContextMenu("初始化工具")]private static void ManualValidate(){// 更换texturem_textureResourceList = new List<TextureResource>();for (int i = 0; i < m_switchPropertiesList.Length; i += 2){m_textureResourceList.Add(new TextureResource(){source = m_switchPropertiesList[i],target = m_switchPropertiesList[i + 1]});}// 更换shaderm_shaderPairs = new List<ShaderResource>();for (int i = 0; i < m_shaderNameList.Length; i += 2){var s = m_shaderNameList[i];var t = m_shaderNameList[i + 1];m_shaderPairs.Add(new ShaderResource(){source = Shader.Find(s),target = Shader.Find(t)});}}public static Shader GetURPShader(Shader source){foreach (var s in m_shaderPairs){if (s.source == source) return s.target;}return Shader.Find("Universal Render Pipeline/Lit");}public static Shader GetHDRPShader(Shader target){foreach (var s in m_shaderPairs){if (s.target == target) return s.source;}return Shader.Find("HDRP/Lit");}public static void ReplaceToUrp(Material mat, Shader s){foreach (var p in m_textureResourceList){if (mat.HasProperty(p.source)){p.tex = mat.GetTexture(p.source);}}mat.shader = s;foreach (var p in m_textureResourceList){if (mat.HasProperty(p.target)){mat.SetTexture(p.target, p.tex);}}}public static void ReplaceToHDRP(Material mat, Shader s){foreach (var p in m_textureResourceList){if (mat.HasProperty(p.target)){p.tex = mat.GetTexture(p.target);}}mat.shader = s;foreach (var p in m_textureResourceList){if (mat.HasProperty(p.source)){mat.SetTexture(p.source, p.tex);}}}public static void WalkthroughMaterials(string folder, Action<Material, Shader> replace, Func<Shader, Shader> getShader){folder = "Assets/" + folder;string[] allFiles = Directory.GetFiles(folder, "*.mat", SearchOption.AllDirectories);foreach (string file in allFiles){Material mat = AssetDatabase.LoadAssetAtPath<Material>(file);if (mat != null){var s = getShader(mat.shader);replace(mat, s);}}}
}[System.Serializable]
public class TextureResource
{public string source;public string target;public Texture tex;
}
[System.Serializable]
public class ShaderResource
{public Shader source;public Shader target;public Texture tex;
}
public