Trigger event in sequencer to turn off lights in all blueprint instances

[vonDiego]

Hi there,

I need some help in order to achieve the following:

I created a BluePrint actor containing a static mesh and a Spot light. I have then spread several instances of this BP in my level to act as ceiling lights.

At some point of my cinematic, I want to trigger an event from the Level Sequence that have to dim the Spot Light of all the BP instances in my level.

I found ways to interact with each instances but not with the source BP, in order to switch off all lights as once.

Do you have any ideas or references ?

Thank you.

[ok_studios]

Hi.
I am not sure I understand your question 100 percent, but it sounds like you are wanting to control all the instances of a class from a master or parent blueprint. If that’s the case, then maybe this video will help you. It is always confusing to me but the basic concept is that a parent can control all the children and the children can be individualized, but the children cannot control the parent. It seems you would create children BPs from one parent, and then you could use the parent to control all the children.

What is a Function Override in Unreal Engine?

[vonDiego]

HI,

I managed to do what I was looking for by using the ‘Get all actors of class’ node in my sequence BP.

But I learned something new with your link so thank you for your time.

Have a great day !