public override void OnInspectorGUI() { base.OnInspectorGUI(); if (target == null || !(target is Cubemap)) { return; } Cubemap cubemap = target as Cubemap; string assetPath = AssetDatabase.GetAssetPath(target); TextureImporter importer = (TextureImporter)TextureImporter.GetAtPath(assetPath); importer.wrapMode = TextureWrapMode.Clamp; importer.textureType = TextureImporterType.Advanced; importer.mipmapEnabled = false; importer.maxTextureSize = 2048; importer.textureFormat = TextureImporterFormat.PVRTC_RGB4; AssetDatabase.ImportAsset(assetPath, ImportAssetOptions.ForceUpdate); exportType = (CubeMappingType)EditorGUILayout.EnumPopup("Export Type", exportType); if (GUILayout.Button("Export")) { string path = EditorUtility.SaveFilePanel("Save Cubemap as PNG", "", cubemap.name + ".png", "png"); cubemap.SaveToPNG(path, exportType); AssetDatabase.ImportAsset(path, ImportAssetOptions.ForceUpdate); } }