Game Development Reference
In-Depth Information
Bear in mind, this is the aspect ratio of UI elements and not the
aspect ratio of the screen resolution. The final resolution of the
screen has no impact on GameObject managed by the Aspect
Ratio Fitter .
If you add the Aspect Ratio Fitter component to a UI GameObject navigating to
Add Component | Layout | Aspect Ratio Fitter we see the following:
From here the Aspect Ratio Fitter has several different modes:
None : This does nothing at all and if you try to change the Aspect Ratio
property, it will just reset it to its previous value. It literally does nothing
(why even add the component unless you are going to animate something
with it maybe?).
Width Controls Height : In this mode, the Aspect Ratio will alter the Height
of the Rect Transform it is attached to based on its Width . So, Height = Width
x Aspect Ratio .
Height Controls Width : In this mode, the Aspect Ratio will alter the Width
of the Rect Transform it is attached to based on its height. So, Width = Height x
Aspect Ratio .
Fit In Parent : This mode will resize a Rect Transform within the bounds of
its parent based on the Aspect Ratio .
° When the Aspect Ratio is less than 1 (but greater than 0 ), it will make
the Width of the Rect Transform a percentage of the Width of the
Parent, as shown here:
Rect Transform drawn based on aspect ratio width
 
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