How do I make this firefly effect?

Hey, so I saw this effect while exploring at peoples showcases to take inspiration and I’ve seen many firefly effects but this one just sticks out to me. Would anyone mind explaining me how this effect is done? If it’s particle effects than does someone mind also explaining the steps on how it’s done because I’m kind of inexperienced with particle effects. Thank you!

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Make a part somewhere, and insert a particle emitter instance into it, then you can add your own texture for the particle, that’s up to you.

So the particle you are showing has two major components, size and transparency. Both of those can be represented as number sequences to make it more/less opaque and larger/smaller over time.

Open the number sequence editor for the transparency by clicking here
image

Edit the transparency for the particle emitter and make a number sequence somewhat similar to this.

Make sure that you include some envelope for the points. This just means that the value for a random particle can be anywhere within that envelope range, so each particle will be slightly different from the others.

Now, do the same for the size
image

Now, you need to set the particles speed and lifetime, these settings seemed fine for me. And again, you can set a min and max value for these for slight variation in each particle.
image

Then you can scale up your part to fill the desired area where you want your particles
The rest of the settings are pretty self explanatory but you can try changing the settings and see what each of them does.

I hope this helped.
Good luck

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I use this Firefly Swarm - Roblox

it is a free model but it has the Official Model Maker Badge
so its ok to use it, and the good part about it that is can cast light and so also make shadows more realistic

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I suppose you just make a part and that part is the limit area of the fireflies can go, just put ParticleEmitter inside it. And just mess with the properties of it.

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Thank you! I’m not really the best with particle effects or if I were being honest I haven’t really messed with the properties for particle emitters because I’m lazy. Thank you this is actually pretty much what I’m looking for. :smile:

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I actually like this, thank you for showing this model! I’ll definitely use this on different projects in the future.

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