FadeTo Action

Overview
The FadeTo Action Node.
The FadeTo Action Node continuously modifies the Opacity of an Object over a specified period of time, thus creating an Animation. The final value of the Opacity is set by the user. Find an example of how to use this Node and its effect over an Object at the end of this page.
Furthermore, visit the Actions Nodes page for a general introduction to these Nodes.
​Scope: Scene, Function, Prefab.
Attributes
The FadeTo Action Node Attributes.
Attribute
Type
Description
Duration (sec)
Float
The total time of the Action, if none is received in the Duration Input Socket.
To
Float
The desired Opacity value at the end of the Action, if none is received in the To Input Socket.
Interpolation
Drop-down
The Interpolation method to use for calculating the intermediate values of the Opacity. It can be Linear, Sine Ease In, Sine Ease In Out, or Sine Ease Out.
Inputs
Input
Type
Description
Instance ID
InstanceID
The assigned Instance ID of the Action. If nothing is received, it automatically assigns 0 as the Instance ID.
(►) 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).
To
Float
The desired Opacity value at the end of the Action.
Outputs
Output
Type
Description
Instance ID
InstanceID
The assigned Instance ID of the Action.
OnStart (►)
Pulse
Flows to the next Node following FadeTo Action when the Action starts.
OnEnd (►)
Pulse
Flows to the next Node following FadeTo Action when the Action stops.
Example
This section shows a simple example of how to use the FadeTo Action Node and the effect it has on an Object. We start by configuring the Scene, then build the Logic, and finally show the result.
Scene Configuration
We consider a Scene with two Objects: a white arc over a black background, both of which can be easily created in the Scene Outliner. Then, we set the Size Attribute of the arc to (500,500,0)(500, 500, 0)(500,500,0)
. See this configuration in the following image:
Scene configuration.
Logic
We then need to configure the Logic. This is done in the Logic Editor.
We use the FadeTo Action Node with the following Attributes:
Duration (sec): 222
​
To: 0.050.050.05
​
Interpolation: Linear
And we connect to it the Object Node of the arc and a Pulse to the Start Input Socket. Thus, having the following Logic configuration:
Logic configuration.
Final result
Finally, the effect of the ScaleTo Action Node when triggered is the following:
Final result.
See Also
​FadeFromTo Action​
External Links
​Transparency (graphic) on Wikipedia.

Attribute	Type	Description
`Duration (sec)`	Float	The total time of the Action, if none is received in the `Duration` Input Socket.
`To`	Float	The desired `Opacity` value at the end of the Action, if none is received in the `To` Input Socket.
`Interpolation`	Drop-down	The `Interpolation` method to use for calculating the intermediate values of the `Opacity`. It can be Linear, Sine Ease In, Sine Ease In Out, or Sine Ease Out.

Input	Type	Description
`Instance ID`	InstanceID	The assigned Instance ID of the Action. If nothing is received, it automatically assigns 0 as the Instance ID.
(►) `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).
`To`	Float	The desired `Opacity` value at the end of the Action.

Output	Type	Description
`Instance ID`	InstanceID	The assigned Instance ID of the Action.
`OnStart` (►)	Pulse	Flows to the next Node following FadeTo Action when the Action starts.
`OnEnd` (►)	Pulse	Flows to the next Node following FadeTo Action when the Action stops.

FadeFromTo Action

MoveBy Action

Last modified 4mo ago