Autodesk 12812-051462-9011 User Guide 3 - Page 2608

5 In 3ds Max, choose File > Open and try loading the file you just copied from the \autoback folder. If it opens, save the scene and rebuild what you lost in the last five minutes. If you'd like to adjust the Auto Backup settings, you'll find them on the Files panel on page 7750 of the Preference Settings dialog, available via the Preferences command on the Customize menu. Fixing Boolean Problems Boolean operations are a powerful addition to your modeling toolbox; however, they can sometimes give strange or unexpected results. The Boolean button is found on the Create panel in the Compound Objects list; it allows you to join, subtract, intersect, and cut objects. Following is a list of problem scenarios and steps you can follow to fix them. TIP The ProBoolean compound object on page 844 represents a significant improvement over the legacy Boolean compound object in a number of ways. In most cases, it's highly recommended that you use ProBoolean rather than Boolean. TIP Before performing a Boolean operation, you should save your scene or use Edit > Hold. That way, you can quickly recover should anything not appear as expected. Problems and Resolutions Boolean Objects Disappear If you mistakenly perform an Intersection Boolean operation on two objects that look like they intersect, but actually don't, you can end up in a situation where the object completely disappears. In the Operands group, you see both your objects listed but nothing on-screen. 1 Click the Undo button to retract the Operand B selection. 2 Right-click to exit the Boolean operation. 3 Verify that the objects intersect by checking them in two viewports, like the Top and Left. 4 Click Boolean to turn on the operation, and click Pick Operand B. Fixing Boolean Problems | 7863