Null object parenting

- [Instructor] Taking simple components and building them up…to create something more complex is a common thread…in the visual language of motion graphics.…With compositions the more layers you have in a comp…the harder of a time you'll have…trying to control all of them.…Here in this movie we'll look at how we can use…null objects to add broader control to 3-D layers.…So here in this composition I've got…four 3-D layers, I've got a background,…a 2-D null, and a camera,…and so if I wanted to move this group of 3-D layers…I can certainly shift click them all…and move them around.…

However, that's going to be kind of cumbersome…each time I need to pick them up and move them.…I'll have to reselect and…this doesn't even come to address…what happens when I need to rotate everything all together.…I'd have to go through each one…and rotate each one separately.…That sounds really cumbersome.…Let's go ahead and undo that.…Instead we can take our 3-D nulls…and parent them to a null object.…So here my null here is 2-D,…but that doesn't really matter…