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Add Camera Rigs
Creates a menu option to add a Dolly rig or Crane rig with UI
UI location File → User Preferences → Add-Ons → Camera
Usage View3D > Add > Camera > Dolly or Crane Rig
Version 1.1.1 Author(s) Wayne Dixon, Kris Wittig
Blender 2.77 License GPL
Category Camera Distribution in Blender Release add-ons


Executable information
File name camera_dolly_crane_rigs.py


Known Issues the UI will not display if you parent an object to the rig with a name that is alphabetically before the name of the camera.


Description

This script was designed to add some extended functionality to a camera by creating control rig with custom shapes and UI to easily access the cameras settings from the 3d window.

After installing the add-on, it will place 2 menu items in the Add » Camera Menu. They are Dolly Rig and Crane Rig.

Both rigs are very similar except the "Crane Rig" has 2 extra adjustable bones (Arm Height & Arm Length) to make it easier to achieve a cinematic crane shot.

Usage

Install the add-on and activate.

⇧ ShiftA » Add » Armature » Dolly Rig (or Crane Rig).

This will build the rig at the cursor location, add a NEW camera, making it the new active scene camera.
The camera object will not be selectable by default but this can be toggled from the UI in the 3d view properties panel (the 'n' panel).
When the Rig is selected, the camera properties will be displayed in the 'n' panel.

Troubleshooting:
If the Aim tracking is not functioning check that you have "Auto Run Python Scripts" enabled in the user preferences.
User prefs > File > Auto Execution: "Auto Run Python Scripts"

If the UI stops working, perhaps you have parented an object to the rig?
At the moment If you parent an object to the rig with a name that precedes the camera name alphabetically, the UI can't load.
eg. The Default camera name for the Dolly is "Dolly Camera". If you parent an object called "E" it will work. But an object called "A" will fail.

The Rigs

Root bone:
This is the parent of the entire rig.

CTRL bone:
This is the bone that will translate the camera around. By default it will track to the AIM bone

AIM bone:
The camera will point at this bone. You can also tilt the camera by rotating the AIM on the Y axis.

UI

Crane Rig UI

The UI will display most of the useful camera settings.
I will only explain the added features here, for more information check out the camera page.

Add DOF Empty:
The Add DOF Empty button will automatically add an Empty at the location of the Aim bone and make it the Depth of Field (DOF) Object.
The empty is a child of the aim bone but will give the user the ability to animate this object.

X ray:
Will make the rig object visible through all other geometry. (Useful if you have a fly through scene or if other meshes are in the way)

Lock Camera Select:
The Lock Camera Select is a toggle button to make the camera non-selectable (so you can't accidentally delete it).
The camera is not selectable by default.

Tracking (Aim Lock):
This slider controls the the 'track-to' constraint on the CTRL bone. Turn it off and the bone will not point to the AIM bone anymore.

Crane Rig Height & Arm Length

The 'Arm Height' and 'Arm Length' sliders at the bottom of the UI show the Y axis scale of the relevant bone. By default, both the height and the arm length are at 1 Blender Unit in size.
These values can be set to the users preferences and also animated if need be.


Multiple Cameras

It is possible to add as many rigs as your scene needs.
The Make Camera Active will appear if the camera attached to the selected rig is NOT the active camera.
By pressing this, it will make this camera the active camera. If you wish to switch active cameras during an animation, check out the Camera Switching section below.

Camera Switching

If you wish to switch cameras during an animation you can do this with the Add Marker and Bind button.
This uses Blender's built-in camera binding tool to a timeline marker.
When pressed, it will add a marker to the timeline and bind it to the camera controlled by the selected rig.
Go to another frame, select a different Camera Rig and press it again.
Now you have 2 markers and when you scrub the time line you will see the active camera switch accordingly.
(repeat this process as many times as needed)
This markers can then also be dragged around in the time to change the frame in which they will switch.

Video demo