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Instance
 
 
 

An instance is an interchangeable clone of the original. You can instance objects, modifiers, controllers, materials, and maps. Changing an attribute of an instanced item also changes the same attribute of all instances. See Overview of Copies, Instances and References.

Object instances are not only alike in geometry, but also share modifiers, materials and maps, and animation controllers. When you change one instance by applying a modifier, for example, all the other instances change with it.

Each instance has its own set of transforms, object properties and space warp bindings; these are not shared among instances.

Within 3ds Max Design, instances derive from the same master object. What you're doing is applying a single modifier to a single master object. In the viewport, what you see as multiple objects are multiple instances of the same definition.

If you wanted to create a room full of desks, you might begin by making many instanced copies of a desk.