Chapter 1: Getting Started with mental ray in 3ds max You can switch back and forth between any of the default interfaces and presets without affecting any current or previously created files. 1.2.1.1 Exercise:Switchingdefaultsanduserinterface 1. Open 3ds max or 3ds max Design. 2. Choose Customize from the pull-down menu and then choose Custom UI and Defaults Switcher (see Figure 1.1). 3. In the left pane of the initial settings dialog, highlight Max.mentalray, and in the right pane, make sure DefaultUI is highlighted (see Figure 1.2). You can read through the overview of the setting changes and then click the Set button at the bottom of the dialog. 4. A warning will appear that you must restart the 3ds max for the changes. Click OK and then close 3ds max and restart it. You will now be using the same defaults and user interface for consistency throughout the book's exercises. When you return to production work, you can easily switch back to the 3ds max or 3ds max Design user interface that you use in production. Just remember to switch to the Max.mentalray Custom UI and Defaults setting any time you are working with this book. Figure 1.1 OpentheCustomUIand DefaultsSwitcherdialog. 1.2.2 Unitsin3dsmax