Differential D848 Diff 2764 manual/animation/basics/drivers.rst

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manual/animation/basics/drivers.rst

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	Workflow	Workflow
	========	========

	Adding Drivers	There are some different ways to add drivers in blender. These are some driver examples and workflow.
	^^^^^^^^^^^^^^	After adding drivers they are usually modified in the Graph Editor with the mode set the Drivers.

	To control a property with a driver, find the property you want to add driver to.

		UI
		^^
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	FIXME(Template Unsupported: Shortcut/Mouse;	The common way to add a driver to a property is to right click a property, then add a driver via the context menu.
	{{Shortcut/Mouse\|rmb}}
	) the property and select one of the following options.

	Add Drivers	Add Drivers
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	This will add drivers to the set of properties related to the selected one.	This will add drivers to the set of properties related to the selected one.
	For example, it will add drivers to X, Y, and Z for Rotation.	For example, it will add drivers to X, Y, and Z for Rotation.

	Add Single Driver
	This will add a single driver to the selected property.

		Add Single Driver
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		This will add a single driver to the selected property.

	.. figure:: /images/Doc_Add_Driver2.jpg	.. figure:: /images/Doc_Add_Driver2.jpg

	Add Single Driver.	Drivers can also be added by pressing :kbd:`D` with the mouse over the property set.


	Transform Driver	#Expression
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	^^^^^^^^^^^^^^^^	^^^^^^^^^^^

		This is quick way to add drivers with a scripted expression.
		First click the property you want add a driver to, then add a hash # and a scripted expression.

		Some examples.

	This example shows you how rotate a cube mesh by moving another cube left or right in the 3D	- #frame
	view.	- #frame/20
	First make sure you are in the Front Orthographic View :kbd:`Num1`,	- #sin(frame)
	:kbd:`Num5`.	- #cos(frame)


	- In Object Mode select then Duplicate :kbd:`Shift-D` the default Cube.	Copy Paste
	- Move the cube to a new location. You should have two mesh objects, Cube and Cube.001.	^^^^^^^^^^
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	- With Cube.001 selected as the active object, Add Single Driver to the Rotation Y property.
	- Open the Graph Editor, set the mode to Drivers.
	- Show Only Selected is useful disabled for drivers, marked in green.
	- Open the Properties Region :kbd:`N`, go to the Drivers Panel.
	- You may need to select the driver Y Euler Rotation :kbd:`LMB` for the Drivers Panel to appear.
	- Set the driver Type to Sum Values.
	- Set the driver variable var settings.
	- Set Type to Transform Channel.
	- Set Ob/Bone ID-block to Cube.
	- Set Transform Type to X Location.
	- Set Transform Space to World Space.

		Drivers can be copied and pasted in the UI, via the context menu.
		When adding drivers with the same settings, this can save time modifying settings.


		Transform Driver
		^^^^^^^^^^^^^^^^
		fsiddiUnsubmitted Not Done Inline Actions See similar above. fsiddi: See similar above.

	.. figure:: /images/Doc_Drivers_TD_Workflow.jpg	This examples shows you how setup a transform driver.
		First make sure you are in the Front Ortho view. :kbd:`Numpad5`, :kbd:`Numpad1`.

	Transform Driver workflow.	(1) In object mode, select then duplicate the default Cube. :kbd:`Shift+D`. Move Cube.001 to a new location.
		(2) With Cube.001 selected, add a single driver to the Rotation Y property.
		(3) Open the Graph Editor, set the Mode to Drivers.
		(4) Show Only Selected is useful disabled for drivers, marked green in the picture.
		(5) In the channels region, select the Y Euler Rotation property.
		(6) Press :kbd:`N` to open the properties region, scroll down to Drivers panel.
		(7) Change the Type to Averaged Value, this will return the averaged value of the driver variables.
		(8) Modify the driver variable settings.

		- Type - Transform Channel
		- Ob/Bone - Cube
		- Transform Type - X Location
		- Transform Space - World Space

		.. figure:: /images/animation_drivers_transform.jpg

	Now when you move the Cube left or right in the 3D View, Cube.001 should rotate.	When finished, Cube.001 should rotate on the Y axis when moving Cube left of right.


	Examples	Examples
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