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Moving Scale of Object

I'm a beginner so this is probably a very simple question:

I set up a lerp animation where an object's scale gets bigger on begin overlap, and then when there is an end overlap, the "reverse" is activated, making the object smaller.

But now, I want to activate the get bigger and smaller autonomously--on awake, a lung-like object gets bigger for three seconds, and then smaller by itself, and then bigger again, etc. rhythmically.

How do I begin to do this with blueprint scripting? I looked up youtube videos on autonomously moving platforms, but none seem to quite get what I'm looking for.

Product Version: UE 4.15
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asked Sep 25 '18 at 07:19 AM in Blueprint Scripting

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  • make the timeline track sinusoidal and set the timeline to loop (check the top row in the timeline editor)

  • or create a custom event that fires on timeline finish and restarts the timeline

  • or play the timeline forth an back

  • or use Set Timer by Event to cyclically restart it

All of these should work well.

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answered Sep 25 '18 at 07:40 AM

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avatar image FramersVR Sep 25 '18 at 08:32 AM

Wow, thank you so much for this kind and thorough response! These sound great, and I look forward to trying them out.

avatar image Everynone Sep 25 '18 at 10:05 AM

Just to give you an idea of what I mean:

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alt text

Image from Gyazo

Or like this, which is by far the simplest way imaginable:

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scale.png (147.3 kB)
t1.png (34.4 kB)
timline2.png (53.3 kB)
t2.png (30.9 kB)
avatar image FramersVR Sep 25 '18 at 05:12 PM

This is an amazing answer. Thank you so much--I feel like I learned so much from your response. I didn't know you could loop the timeline. Cheers!

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