EditorGUIUtility.whiteTexture 白色纹理

// Load a texture, display the texture, display its alpha channel and// show a preview of the inverted texture//加载一个纹理，显示纹理，显示它的alpha通道并显示反向纹理的预览class EditorGUITextures extends EditorWindow {var texture : Texture2D;var invertedTexture : Texture2D;var showInverted = false;@MenuItem("Examples/Texture Previewer")static function Init() {var window = GetWindow(EditorGUITextures);window.position = Rect(0,0,400, 200);window.Show();}function OnGUI() {texture = EditorGUI.ObjectField(Rect(3,3,200,20),"Add a Texture:",texture,Texture);if(GUI.Button(Rect(208,3, position.width - 210, 20),"Process Inverted")) {if(invertedTexture)DestroyImmediate(invertedTexture);//Copy the new texture//复制新的纹理invertedTexture = new Texture2D(texture.width,texture.height,texture.format,(texture.mipmapCount != 0));for (var m : int = 0; m < texture.mipmapCount; m++)invertedTexture.SetPixels(texture.GetPixels(m), m);InvertColors();showInverted = true;}if(texture) {EditorGUI.PrefixLabel(Rect(25,45,100,15),0,GUIContent("Preview:"));EditorGUI.DrawPreviewTexture(Rect(25,60,100,100),texture);EditorGUI.PrefixLabel(Rect(150,45,100,15),0,GUIContent("Alpha:"));EditorGUI.DrawTextureAlpha(Rect(150,60,100,100),texture);EditorGUI.PrefixLabel(Rect(275,45,100,15),0,GUIContent("Inverted:"));if(showInverted)EditorGUI.DrawPreviewTexture(Rect(275,60,100,100),invertedTexture);if(GUI.Button(Rect(3,position.height - 25, position.width-6,20),"Clear texture")) {texture = EditorGUIUtility.whiteTexture;showInverted = false;}} else {EditorGUI.PrefixLabel(Rect(3,position.height - 25,position.width - 6, 20),0,GUIContent("No texture found"));}}function InvertColors() {for (var m : int = 0; m < invertedTexture.mipmapCount; m++) {var c : Color[] = invertedTexture.GetPixels(m);for (var i : int = 0 ;i < c.Length; i++) {c[i].r = 1 - c[i].r;c[i].g = 1 - c[i].g;c[i].b = 1 - c[i].b;}invertedTexture.SetPixels(c, m);}invertedTexture.Apply();}function OnInspectorUpdate() {Repaint();}}