Join Aaron F. Ross for an in-depth discussion in this video Undoing camera movements, part of Cinematography: Maya.
In Maya as in some other 3D programs, there are actually two sets of undos. There's one undo buffer for scene commands, like moving an object or selecting something. And there's another set of undos for camera movements. So we need to understand the difference here. And until you get a handle on this, you might experience some unexpected results, so let me demonstrate. Let's say I grab the Move tool, and I click here on Walter's supermover. And let's say I move him back.
And then I decide I want to get in closer, so I'll use the Viewport shortcuts Alt+middle to track, and Alt+right mouse to dolly forward. And let's say I make a mistake. Let's say I accidentally position him over, too far to the side. And I decide that I want to undo that particular viewport move. Well the normal undo won't work. What will happen if you do a normal undo is that Walter will move back to where he was originally.
And you can do the undo either by going to Edit > Undo, or by clicking on the Undo button on the shelf, or by just pressing the Z key on the keyboard. Those will all do the same thing. I'll click the shelf button. So you see Walter move back to where he was originally. But I did not undo the viewport movements. The track and dolly commands I did. If I want to undo those track and dolly commands, I can do that from the View menu here.
And you will see Undo View Change and Redo View Change. Okay, so first I'll send Walter back where I wanted him by clicking Redo. And then I'll go into the View menu and I'll choose Undo View Change. You can also use Alt+z. And you can see now my camera has moved back. And I can keep doing that and go to Undo View Change for each movement of the camera. Or of course, I can do a Redo View Change. So that's the default behavior. But you can choose to make the camera movements undoable as well, so that the standard Undo command, such as the z key will also apply to camera movements.
And that's less important for perspective use, but it becomes more important when you're using actual renderable cameras. Because you might accidentally move the camera and need to get it back to where it was, and it's just better if you have the Undo command available to you. So to make this happen what you do is go into the Current Cameras panel, to the View menu. And under Camera Settings, you'll see Undoable Movement. You can activate that. This is an attribute of the camera, so you can also access this from the camera's attribute editor.
I'll just go ahead and click Undoable Movement, and now if I move the camera left, then if I want to undo that, then I'll just click on Undo here. Boom. And it's done. So those are your options. The default behavior is there's a separate command for Undo View Change, or you can activate Undoable Movement for each camera. And that way you can just use the ordinary Undo command or the Z key.
AuthorAaron F. Ross
- Getting the most out of viewport cameras
- Controlling camera attributes such as clipping planes
- Setting display options such as Resolution Gate
- Adjusting focal length and field of view
- Previz editing with the Camera Sequencer
- Setting rotation order for predictable camera animation
- Animating simple camera moves such as pan and dolly
- Mastering compound moves such as crane and handheld shots
- Understanding the Film Back attributes
- Achieving isometric and tilt-shift effects
- Projecting a texture from a camera
- Rendering depth-of-field and rack-focus effects
Skill Level Beginner
1. Viewport Camera Basics
2. Renderable Camera Basics
3. PreVIZ Editing with the Camera Sequencer
4. Simple Camera Movement
5. Compound Camera Movement
6. Special Effects
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