Tools and controls
******************

	* Open the Introduction project

Creating objects
================


	* In the Hierarchy window, right click in an empty area to open the context menu
	
	.. image:: create3D.png
		:scale: 50%
		
	* Select *3D object > Cube*
	
	* In the assets window, select the folder Assets > SolidColorMaterials
	
	* Drag and drop a material onto the cube in the 3D scene to color it
	
	.. image:: apply.gif
		:scale: 80%

	* Press DEL to delete the cube


In the same way, you can create other types of objects:

	* Capsule
	* Cylinder
	* Plane
	* Sphere
	
	
	.. image:: list.png
		:scale: 80%

Selecting a tool
================

There are two ways to activate a specific tool:

	* By clicking on its icons in the tools panel
	
	.. image:: tools.png
		:scale: 70%

	* By using keyboard shorcuts
	
		* W: Move Tool
		* E: Rotate Tool
		* R: Scale Tool
		
	.. note:: On US keyboards, all the relevant keys are aligned in a single row!
	
	
Move Tool
========= 

In game engines like Unity, the term **gizmos** refers to visual elements used in the editor to represent objects, tools, or concepts that are not visible in the actual game.


	* Create a cube and assign it a color

	* To activate the Translation tool, press  **W** or click on the Translate tool icon
	
	* Three gizmos appear: three arrows of different colors used to move the object relative to a specific axis
	
	* Click and hold the blue arrow

		* Notice that it becomes yellow
		* Pull the cube
		* Release mouse button when finished
		
		.. image:: translate.gif
			:scale: 60%
			
	* Inside the cube, they are three small facets, you can use these gizmos to move the object relative to two directions
	
		* Click and hold the horizontal facet
		* Move mouse 
		* Notice that the cube  moves only horizontally
		
		.. image:: translatehoriz.gif
			:scale: 60%
	
	* Delete the object
		
Rotate Tool
===========

	* Create a cube and assign it a color

	* To activate the Rotate tool, press  **E** or click on the Rotate tool icon
	
	* Three gizmos appear: three circles of different colors used to rotate the object relative to a specific axis
	
	* Click and hold the green circle

		* Notice that it becomes yellow
		* Move the mouse left and right
		* Release mouse button when finished
		
		.. image:: rotate.gif
			:scale: 70%
	
	* Delete the object
	
	.. warning:: Notice that there exists a gray gizmo that corresponds to a rotation relative to the current view. It is not recommended to use it, as the result can sometimes be unpredictable.
	
	
Scale Tool
==========

	* Create a cube and assign it a color

	* To activate the Scale tool, press  **R** or click on the Rotate tool icon
	
	* Three gizmos appear: three small cubes of different colors used to scale the object relative to a specific axis
	
	* Click and hold the green gizmo

		* Notice that it becomes yellow
		* Move the mouse up and down
		* Release mouse button when finished
		
		.. image:: scale.gif
			:scale: 70%
	
	* Click and hold the gray gizmo at the center
	
		* The object is scaled uniformly in all directions

		.. image:: 3scale.gif
			:scale: 70%	
	
	
	
	* Delete the object

	
Edit Transform values
=====================
	
Set values manually
-------------------

	
	* Create a cube and assign it a color
		
	* Click inside the edit box of the X parameter, change its value to 1
	
	* Change Y and Z values to 0 and 1
	
	.. image:: 101.png
		:scale: 50%
	
	* Notice that the center of the cube is at (1,0,1):

	.. image:: xyz.png
		:scale: 50%
		
Reset Transform
---------------
		
	* Click on the three vertical dots on the top right of the Tranform panel
		
		* Select *Reset*
	
	.. image:: reset.png
		:scale: 50%	
		
	* Notice that the object is now located at the Origin
	

Quickly test values
-------------------
 
	 
	
	* Move the mouse pointer on the Y parameter
	
	* Notice that the cursor's shape has changed:
	
	.. image:: arrows.png
		:scale: 70%
		
	* Press and hold the left mouse button
	
	* Move left and right, this will dynamically change the parameter
		
	.. image:: roll.gif