【工具】增加自动替换UI材质工具

ProjectNLD/Assets/Editor/UIMaterialReplacer.meta

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+fileFormatVersion: 2
+guid: 15b106af891a4e44ae742657a36267f2
+timeCreated: 1757998413

ProjectNLD/Assets/Editor/UIMaterialReplacer/UIReplacer.cs

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+using UnityEditor;
+using UnityEngine;
+namespace GameEditor.UIMaterialReplacer
+{
+    public class UIReplacer
+    {
+
+        private static string _matPath = "Assets/Art_Out/UI/Material/gama_mat.mat";
+
+        [MenuItem("Assets/Editor/UIMaterialReplacer/Replace UI Material")]
+        [MenuItem("GameObject/Editor/UIMaterialReplacer/Replace UI Material", false, 10)]
+        public static void ReplaceUI()
+        {
+            // 获取选中的所有GameObject
+            var selectedObjects = Selection.GetFiltered<UnityEngine.GameObject>(SelectionMode.DeepAssets);
+            foreach (var selectedObject in selectedObjects)
+            {
+                _TryReplace(selectedObject);
+            }
+        }
+        
+        private static bool HasTransparency(Texture2D texture)
+        {
+            // 方法1: 检查纹理格式
+            var format = texture.format;
+            bool formatSupportsAlpha = format == TextureFormat.RGBA32 ||
+                format == TextureFormat.ARGB32 ||
+                format == TextureFormat.RGBA4444 ||
+                format == TextureFormat.ARGB4444 ||
+                format == TextureFormat.Alpha8 ||
+                format == TextureFormat.ETC2_RGBA8 ||
+                format == TextureFormat.DXT5 ||
+                format == TextureFormat.BC7;
+    
+            if (!formatSupportsAlpha) return false;
+
+            // 方法2: 检查像素数据（需要纹理可读）
+            if (!texture.isReadable) return true;
+
+            try
+            {
+                var pixels = texture.GetPixels32();
+                foreach (var pixel in pixels)
+                {
+                    if (pixel.a < 255) // 发现非完全不透明的像素
+                    {
+                        return true;
+                    }
+                }
+                return false;
+            }
+            catch
+            {
+                // 无法读取像素数据，回退到格式检查
+                return true;
+            }
+        }
+        
+        private static void _TryReplace(GameObject go)
+        {
+            // 替换材质
+            var loadMat = AssetDatabase.LoadAssetAtPath<Material>(_matPath);
+            if (loadMat == null)
+            {
+                Debug.LogError("加载材质失败: " + _matPath);
+                return;
+            }
+            
+            Debug.Log($"开始处理 {go.name}");
+            var isModify = false;
+            var allImages = go.GetComponentsInChildren<UnityEngine.UI.Image>(true);
+            foreach (var img in allImages)
+            {
+                if (img.sprite == null)
+                {
+                    continue;
+                }
+                // 判断sprite是否包含透明信息
+                var texture = img.sprite.texture;
+                if (texture == null)
+                {
+                    continue;
+                }
+
+                if (!HasTransparency(texture))
+                {
+                    continue;
+                }
+                
+                img.material = loadMat;
+                Debug.Log($"替换材质: {img.gameObject.name} 贴图: {texture.name}");
+                isModify = true;
+            }
+            
+            if (isModify)
+            {
+                EditorUtility.SetDirty(go);
+                AssetDatabase.SaveAssets();
+            }
+            
+            Debug.Log($"处理完成 {go.name}");
+        }
+        
+    }
+}

ProjectNLD/Assets/Editor/UIMaterialReplacer/UIReplacer.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: cdd2e0e231984f3fb0283ea9475f0ff6
+timeCreated: 1757998429