107 lines
4.4 KiB
C#
107 lines
4.4 KiB
C#
using UnityEngine;
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using UnityEditor;
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using System.IO;
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using System.Collections.Generic;
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public static class NormalConvert
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{
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[MenuItem("Assets/Fix Normal", false, 1)]
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public static void ConvertNormal()
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{
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List<string> normalList = new List<string>();
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List<string> fullList = new List<string>();
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for (int i = 0; i < Selection.objects.Length; i++)
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{
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var texture = Selection.objects[i] as Texture2D;
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if (texture)
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{
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var assetPath = AssetDatabase.GetAssetPath(texture);
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var textureImporter = AssetImporter.GetAtPath(assetPath) as TextureImporter;
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if (textureImporter)
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{
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fullList.Add(assetPath);
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if (textureImporter.normalmap)
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normalList.Add(assetPath);
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}
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}
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}
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if (fullList.Count > 0)
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{
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if (fullList.Count == normalList.Count)
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Convert(fullList);
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else
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NormalConvertWarning.OpenWindow(normalList, fullList, Convert);
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}
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}
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private static void Convert(List<string> pathList)
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{
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for (var i = 0; i < pathList.Count; i++)
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ConvertOneNormal(pathList[i]);
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AssetDatabase.Refresh(ImportAssetOptions.Default);
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}
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private static string GetFilePath(string assetPath)
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{
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return Application.dataPath + assetPath.Substring("Assets".Length);
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}
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public static void ConvertOneNormal(string path)
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{
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var textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
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if (textureImporter == null)
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Debug.LogError(string.Format("无法找到图片：{0}", path));
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else if (textureImporter.textureType == TextureImporterType.NormalMap)
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{
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var texture = AssetDatabase.LoadAssetAtPath<Texture2D>(path);
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textureImporter.isReadable = true;
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textureImporter.textureType = TextureImporterType.Default;
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textureImporter.crunchedCompression = false;
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textureImporter.textureCompression = TextureImporterCompression.Uncompressed;
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textureImporter.SaveAndReimport();
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var colors = texture.GetPixels();
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for (int j = 0; j < colors.Length; j++)
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{
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var color = new Vector3(colors[j].r, colors[j].g, colors[j].b);
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color = color * 2f - Vector3.one;
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color.z = Mathf.Sqrt(1f - Mathf.Clamp01(color.x * color.x + color.y * color.y));
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color = color.normalized;
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color = (color + Vector3.one) * 0.5f;
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colors[j] = new Color(color.x, color.y, color.z, 1f);
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}
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string sourceFile = GetFilePath(path);
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//string sourceMeta = sourceFile + ".meta";
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var targetFile = sourceFile;
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if (Path.HasExtension(targetFile))
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targetFile = targetFile.Remove(targetFile.LastIndexOf('.'));
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targetFile = targetFile + ".png";
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//string targetMeta = targetFile + ".meta";
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Texture2D temp = new Texture2D(texture.width, texture.height, TextureFormat.ARGB32, false);
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temp.SetPixels(colors);
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//string sourceFileBackup = sourceFile + ".tbackup";
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// 只保存最早的备份文件，防止两次转换导致原始贴图丢失
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//if (File.Exists(sourceFileBackup))
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// File.Delete(sourceFile);
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//else
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// File.Move(sourceFile, sourceFileBackup);
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File.Delete(sourceFile);
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//if (sourceMeta != targetMeta)
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// File.Move(sourceMeta, targetMeta);
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if (File.Exists(targetFile))
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File.Delete(targetFile);
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File.WriteAllBytes(targetFile, temp.EncodeToPNG());
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textureImporter = AssetImporter.GetAtPath(path) as TextureImporter;
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if (textureImporter != null)
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{
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textureImporter.textureType = TextureImporterType.NormalMap;
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textureImporter.textureCompression = TextureImporterCompression.Uncompressed;
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textureImporter.mipmapEnabled = false;
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textureImporter.isReadable = false;
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textureImporter.SaveAndReimport();
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Debug.Log(string.Format("转换 {0} 为 {1}！", sourceFile, targetFile));
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}
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}
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}
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} |