FadeFromTo Action
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The FadeFromTo Action Node continuously modifies the Opacity
of an over a specified period of time, thus creating an Animation. Both the initial and final values of the Opacity
are chosen by the user. Find an of how to use this Node and its effect over an Object at the end of this page.
From
Float
The desired initial value of the Opacity
, if none is received in the From
Input Socket.
To
Float
The desired final value of the Opacity
, if none is received in the To
Input Socket.
Duration (sec)
Float
The total time of the Action, if none is received in the Duration
Input Socket.
Interpolation
Drop-down
Instance ID
InstanceID
(â–º) Start
Pulse
A standard Input Pulse, to trigger the execution of the Node.
Object ID
ObjectID
The ID of the target Object.
Duration
Float
The total time (in seconds).
From
Float
The initial value of the desired Opacity
.
To
Float
The final value of the desired Opacity
.
Pulse Output (â–º)
Pulse
A standard Output Pulse, to move onto the next Node along the Logic Branch, once this Node has finished its execution.
Instance ID
InstanceID
OnStart
(â–º)
Pulse
Flows to the next Node following FadeFromTo Action when the Action starts.
OnEnd
(â–º)
Pulse
Flows to the next Node following FadeFromTo Action when the Action stops.
For this purpose, we set the Attributes of the FadeFromTo Action Node in the following way:
To
:
Duration (sec)
:
Interpolation
: Linear
We just leave the From
Attribute as it is, since this value will be obtained through the corresponding Input Socket.
Finally, the effect of the FadeFromTo Action Node when triggered is the following:
Furthermore, visit the page for a general introduction to these Nodes.
: Scene, Function, Prefab.
The Interpolation
method to use for calculating the intermediate values of the Opacity
. It can be , , , or .
The assigned of the Action. If nothing is received, it automatically assigns 0 as the Instance ID.
The assigned of the Action.
This section shows a simple example of how to use the FadeFromTo Action Node and the effect it has on an Object. We start by , then , and finally show the .
We consider a with two : a white arc over a black background, both of which can be easily created in the . Then, we set the Size
Attribute of the arc to and the Opacity
to . See this configuration in the following image:
We then need to configure the Logic. This is done in the .
We use first a , which allows us to obtain an Object's current Opacity
value, and then the FadeFromTo Action Node, to which we will feed the value previously obtained and configure it for it to change it from there to a fixed value of our choosing.
Then, we connect the Object ID from the white arc to the Object ID
Input Socket of both Nodes, the Opacity
Output from the Get Opacity Node to the From
Input Socket in the FadeFromTo Node, and a Pulse through the Get Opacity Node and to the Start
Input in FadeFromTo. Thus, having the following Logic configuration:
on Wikipedia.