Ue4 - Scale Actor Box Trigger Overlap (QuickBuild)

Note: We're doing these QuickBuild guides as sped up silent videos. A lot of these are direct answers to questions on answerHub. They'll show you what to do really quick, but won't necessarily stop to explain everything. We will still be putting out the longer more detailed tutorials we are accustomed to doing, which are a bit more classroom oriented and dive into the "why" behind our setups and how certain nodes we use work.

Let us know if you find these useful!

This is a quick step by step video for a trigger box that animates the scale of a designated object. Basically, it uses a LERP node to interpolate between the object's original scale and an end scale, using a timeline that acts as the LERP's alpha and gets triggered on event overlap.

I also added the ability to set the duration of the timeline in seconds as a variable by dividing the default rate (which is 1) by the amount of seconds desired. This works because there is an inverse relation between rate and duration. 1 rate ==

[kimanmusic]

How do you tell the program what object the Trigger Box will affect?

[brokentoes]

omg, this is perfect! better than my 50 string line lol....Dude... You need to set up the other half... like the thing that gets lerped? The Box your altering. Good god this is 3 years old ill never figure it out!

[happylarry]

Thanks for this video! When the box trigger is duplicated and set another default actor, why would the original box trigger affect the duplicated box trigger's default actor?

[jefffsfff]

When did you set the default value for the actor variable?