Importerが対応するまでの簡易な方法 #587

Assets/MeshUtility/Editor/TextureSaver.cs

@@ -0,0 +1,51 @@
+using System.IO;
+using UnityEditor;
+using UnityEngine;
+
+namespace MeshUtility
+{
+    public static class EditorChangeTextureType
+    {
+        [MenuItem("Assets/SaveAsPng", true)]
+        static bool IsTextureAsset()
+        {
+            return Selection.activeObject is Texture2D;
+        }
+
+        [MenuItem("Assets/SaveAsPng")]
+        static void SaveAsPng()
+        {
+            var texture = Selection.activeObject as Texture2D;
+            var path = SaveDialog(texture.name);
+            if (string.IsNullOrEmpty(path))
+            {
+                return;
+            }
+
+            File.WriteAllBytes(path, texture.EncodeToPNG());
+            Debug.Log($"save: ${path}");
+        }
+
+        private static string m_lastExportDir;
+        static string SaveDialog(string name)
+        {
+            string directory;
+            if (string.IsNullOrEmpty(m_lastExportDir))
+                directory = Directory.GetParent(Application.dataPath).ToString();
+            else
+                directory = m_lastExportDir;
+
+            // save dialog
+            var path = EditorUtility.SaveFilePanel(
+                    "Save png",
+                    directory,
+                    $"{name}.png",
+                    "png");
+            if (!string.IsNullOrEmpty(path))
+            {
+                m_lastExportDir = Path.GetDirectoryName(path).Replace("\\", "/");
+            }
+            return path;
+        }
+    }
+}

Assets/MeshUtility/Editor/TextureSaver.cs.meta

@@ -0,0 +1,11 @@
+fileFormatVersion: 2
+guid: 01c8541cb3fd27f4882e3d32c37a45aa
+MonoImporter:
+  externalObjects: {}
+  serializedVersion: 2
+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: