Toggle Lights with UMG

[anonymous_user_3cb603b2]

Hi guys,
I’ve been trying to turn on/off some lights with a UMG button. I’ve read a bunch of stuff, but since I’m new to Unreal I’m not getting any results.
The workflow I’m trying is:

1- Create a blueprint called Wall Sconce with a Spot Light component, and a Event Graph with a simple custom event linked to a Toggle Visibility;

2- Create a UMG blueprint that, On Clicked, will select all instances of the Wall Sconce and run the simple event created at Wall Sconce.

What am I missing?
Thanks a lot, cheers!

[DjSt3rios]

It seems like it should work, maybe visibility isn’t the problem. Maybe start by making the lights to switch on/off automatically every 1 second to see if it works.

[cm_o]

You should set light intensity rather than visibility. Toggling visibility will dictate whether the light objects are visible in the world, not whether they will be switched on/off. Set light intensity to 0 for switching off, and then to <insert preferred value> when you need them switched on.

[anonymous_user_3cb603b2]

Hi guys, I got it solved, thank you for your input!
Since some noobies like me may be looking for a solution as well, I’ll explain what was the issue.
To make a widget interact with a light we need a total of 3 blueprints:

• One actor blueprint with the light itself, where the code will execute exactly what you desire with it, in my case an animation with the intensity:

• One widget blueprint with it’s layout (buttons and such), where the code will call the the event from the light blueprint:

• One actor blueprint with the widget blueprint loaded, where the code is merely for enabling the user to properly hover over the buttons:

The reason I was doing wrong is because I was ignoring the code from the widget blueprint.
If anyone has a better way of doing it, please do tell us!
Hope this helps.

Cheers!