Linking Material Sine Animation to BP Light?

Development Programming & Scripting Blueprint
1

Hey all,

I feel like there has to be a way to do this, but I can’t quite figure it out. I have a sine animation in my material to animate an emissive fading on and off (Screenshot attached). I’ve also got a blueprint actor with the 3D model of my traffic light and a point light (screenshot attached). I’d like to animate the intensity of the point light to emit at the same frequency as my material animation. Is there a way to pull the frequency from my material (or material instance) and use that to set the intensity of my light? Currently, I’m just using a simple timeline to animate the intensity of the light, but that seems rather basic and I’d like to just link it to the material so if I change the frequency in the material, the light updates automatically. Thoughts?

2

There is no way to pull anything from the material. you have to recreate the functions in C++ to get the same timing on the CPU that can thereafter be used in just about anything.
You can do the same in BP probably.

3

Any thoughts on how to get started with that? I’m comfortable with BP, not with C++

4

Do the exact same thing in BP with nodes.
Time is Game Time.
if you didn’t offset it or mess with it it’s just that.
Sine is a sine that’s probably remapped (fed into a clamp remapped).
Constant bias scale is basically and addition and a multiplication - depending on how you set the node - you are using it to block or expand the range of the sine. So you can probably just set it within the clamp remapped sine function.