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Increasing vector value over time

Hi Guys, i'm kinda new to ue4. I want to have an emissive value increase and decrease over time. First, i made a dynamic instance material, and the emissive value gets to 100 from 0 when the collisionbox gets hit. Fine ! but i find it to hard, and want to have a transition between 0 and 100. I tried to follow those two answers :

https://answers.unrealengine.com/questions/80203/how-to-make-and-use-a-curve-in-blueprints.html https://answers.unrealengine.com/questions/183937/decreasing-a-value-over-time.html

Unfortunatly my understandings of the blueprint grammar are limited right now. here is a snap from my bp (which also includes sounds when Box gets hit). alt text

I don't get how "get float value" takes informations from my curvefloat (which goes to 0,0 to 2,100) which has a time information AND needs an "in time" information...

Thanks for your time and answers vlad

Product Version: UE 4.15
sans titre-1.jpg (768.0 kB)
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asked Apr 21 '17 at 10:16 AM in Blueprint Scripting

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