public override void OnGUI(Rect position, SerializedProperty property, GUIContent label) { EditorGUI.BeginProperty(position, label, property); SerializedProperty assetProp = property.FindPropertyRelative("_asset"); EditorGUI.BeginChangeCheck(); EditorGUI.ObjectField(position, assetProp, label); if (EditorGUI.EndChangeCheck()) { GPUAnimationsRef animationTexture = SerializedPropertyUtils.GetSerializedPropertyValue <GPUAnimationsRef>(property); animationTexture.UnloadTexture(); SerializedPropertyUtils.SetSerializedPropertyValue(property, animationTexture); } EditorGUI.EndProperty(); }