Unreal Engine Rain Particle with Splashes using Niagara FX System 🌧

Project Files: / 58144957 .
UE5 version: • Unreal Engine 5 - Rain...
In this episode, I am going to create a rain particle system from scratch using unreal engine Niagara FX system. Here, the rain particle will have 2 main components, the raindrop streak and splashes spawned on the location raindrops hit surfaces. Both will be implemented using sprites and for splash generation, Niagara event handlers will be used. Here we will see how to generate an event on collision and how to receive that event from another particle emitter and use it to spawn the splash.
► 👇 𝐒𝐮𝐩𝐩𝐨𝐫𝐭 𝐓𝐡𝐞 𝐂𝐡𝐚𝐧𝐧𝐞𝐥 // 𝐁𝐞𝐜𝐨𝐦𝐞 𝐀 𝐏𝐚𝐭𝐫𝐨𝐧!
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[@8dots703]

thank you! simple and clear explained! one tip: i have changed the color of the rain droplets also for the hanging part. to ARGB (hex sRGB)= 71717141. Then it becomes more transparent and looks more rain realistic.

[@Mehdi.Borousan]

Thank you so much. That was the best Niagara Rain in the youtube! So clear and smart and easy. Thank you

[@EpicGamerGRk]

Thank you for all of this tutorials. You help us a lot. Continue the great job👍

[@CodeLikeMe]

My pleasure!

[@CycleverseGames]

That was a great tutorial. Thank you.

[@geoffrey3668]

Very nice tutorial! Thanks!

[@manvendrasingh299]

this is epic, thanks!

[@dmitriyyemelianenko7221]

Thanks so much mate! Amazing tutorial!

[@CodeLikeMe]

Glad it helped!

[@emmarichard6829]

Thank you a lot! I am a beginner in Unreal and I still understood all you did it is super nice

[@CodeLikeMe]

Glad I could help!

[@hossein.najafi]

this was very helpful. thank you so much

[@CodeLikeMe]

You're very welcome!

[@AmarSingh-ws8gp]

Thankyou man,You really helped me alot.

[@CodeLikeMe]

welcome

[@darnb2675]

anyone using unreal 5 if you don't see the event handler it's now located inside of +stage (to the right of emitter properties)

[@mackerel987]

Thank you!

[@neatpolygons8500]

hugging particles

[@EFX612]

awesome, thank you!

[@CodeLikeMe]

You're welcome!

[@Mehdi.Borousan]

It would be amazing if you can make tutorial about procedural earth fog or desert dust. thank you so much.

[@chid4438]

thanks you so much

[@Neppu-dan]

Thanks a lot. Now I can finally use the 64x64 rain textures I ripped from FFXIV.

[@CodeLikeMe]

Cool!

[@alejandroandrino8363]

Bro, as a Ue4 teacher and content creator, I gotta say your tutorials are fire and easy to follow. Definitely recommending your vids to my students, keep it up!!

[@CodeLikeMe]

I appreciate that!

[@poken9293]

if you cant find generate collision event under event handler like me, just wait because he later adds it to the particle update.

[@adamdevine2462]

thank

[@guilhermenaco]

Hello, thank you! But, I´ve noticed the puddles appear in random places in the level, not on the "ground floor" only. Even after reducing the radius. Do you know how to fix it?

[@aidenfarmer3959]

Is it possible to make it so the rain leaves puddles?

[@Unstable.]

Great Video! I'm using the first person template and the splashes appear really big when they collide with the capsule collider of the first person character. Is there any way to prevent this? I know turning off collision prevents it, but then you fall through everything.

[@CodeLikeMe]

may be, modify the splash material to be transparent when closer to camera. or find out if there is a way to scale down if it is closer to the player location, or camera location

[@Unstable.]

@@CodeLikeMe Thanks! I found this video which makes the material transparent the closer you get kzbin.info/www/bejne/eJOqcoprpp1nhs0&ab_channel=EdwardBennett

[@myleneohara6623]

Hi. The metallic voice is very unpleasant. However, the tutorial is nice. Why did you change your voice ?

[@s3armoredyt849]

where's link to droplet file?

[@cvelasco88]

There is any way to avoid the rain collision with the character? and a way to spawn another particle/behaviour for this case?

[@CodeLikeMe]

I'm sorry. I am not sure if it is possible to do that. need to research. But if you find a way, please let me know. I'd like to know that.

[@hatsunemikuchannel2023]

3:40

[@srod8509]

Hello, is it possible to use 3D assets for the rain in Niagara and spawn 3D splashes when the rain hits the ground?

[@CodeLikeMe]

Of course. You can use a mesh renderer module instead of sprite renderer

[@srod8509]

@@CodeLikeMe Thank you

[@sandroavieira]

I can't find the “Generate Collision Event” in Unreal 5.3.2 (NIAGARA)... It does not appear in event handler, it only appears in particles update... is this correct? and GPU COMPUTE???

[@notgamingwithfaz]

me too

[@borzonstudios8638]

add generate collision event directly to the Particle Update section, NOT to the Event handler

[@dalinspeltwrong3674]

10:17

[@sharathbabu2089]

Im using UE5, i cant find the box location option in particle spawn part, there is grid location and shape location. Please let me know which one should i use. Im a beginner in UE.

[@Unstable.]

I'm not too far in the tutorial yet but using shape location produces the same result as box location so far

[@weichen3621]

hoepfully you found the answer to this but if you didn't the box/plane is in the shape location

[@michaelgrinter802]

My "add event handler" isnt an option on UE5 any thoughts would really help

[@CodeLikeMe]

event handler option is changed in UE5. Watch this tutorial, there I used the updated event handler option kzbin.info/www/bejne/hoGVe5dsrJaAh6M

[@LiMaking]

@@CodeLikeMe Hi I checked the arrow video you linked here and I can't see an event handler option at all?

[@ArpitPaul1]

hello, so i wanted to create this effect in ue5, but there's no tutorial on ue5 for this effect. so i followed yours, but it doesn't work. what to do different in ue5??

[@CodeLikeMe]

I have implemented this on UE5 as well kzbin.info/www/bejne/l2fXd4uQndaJn8k

[@mevlut8623]

you should show this to rockstar

[@CodeLikeMe]

Are you referring to the gta3 remaster rain?

[@mevlut8623]

@@CodeLikeMe yeah the "polka dots"

[@CommanderRNOLD]

7:45 I don’t have an event handler option I’m on 5.3

[@XenoKay88]

Did you find a solution?

[@markrennie86]

right but now theres splashes landing on the collision capsule around the player....

[@CodeLikeMe]

yeah, That is something I want to fix. have you found a solution yet?

[@bobgratton2986]

I dont have the generate collision event, only the receive collision event why so ?

[@aren4832]

Try in Particle Update section

[@bobgratton2986]

@@aren4832 theres this box to check I was in 5.2 you need to check a box overide collision something like that and then you get access to generate collision event

[@jacklawrence2221]

could use a lot of RAM during runtime

[@CodeLikeMe]

its just 2 emitters. not that many particles.

[@JoaoThork]

Milk Rain

[@TolisPiperas82]

How can make it not rain inside a house please?

[@CodeLikeMe]

if the roof has collision, raindrops won't come inside

[@marco_martin]

Thanks for the tutorial but my splash particles are not rendering can you help me'

[@CodeLikeMe]

I guess collision events are not firing. But hard ti say why without inspecting code

[@marco_martin]

@@CodeLikeMeI don't have the discord, how do I make you see it...

[@marco_martin]

?

[@duxika]

@@marco_martin I hope this is what you're looking for: HangingParticulates -> Event Handler Properties -> Update Attribute Initial Values UnCheck.

[@alexvaulin1140]

@@duxikait works! Thank you so much!

[@CaptainAmerica-nj2sk]

Bro can you help with the sound of this?

[@CodeLikeMe]

I think I have already added a sound to the system

[@pro.giciel9084]

The sprite are kind of transparent in my level, don't know why

[@CodeLikeMe]

check the material setup. if you don't need any partial transparency, you can use a masked material

[@pro.giciel9084]

@@CodeLikeMe It was just the emissive of the material that had to be boosted

[@vivekcharan417]

Is it free?

[@vivekcharan417]

On unreal market?

[@CodeLikeMe]

No, but this video is free,

[@Juri-xz8qv]

how can i make the rain all around zhe world not just on a certain place?

[@CodeLikeMe]

enlarge the spawn area of particles to match the world. But beware of performance. I only make the rain particles spawn around player, so wherever you go, there will be rain,

[@Boris247]

I appreciate the video, but your approach of doing collission checks per frame on every single rain drop is too lazy to be useful because it costs too much performance. I did some testing and this costs ~10% of FPS, which is too much. There is a better way of doing this using top-down ortographic camera view to generate a height map around the player character to detect surface in form of height map, which works even with wind simulation. This way it's 10 to 100 times faster that per-frame collission checking on every rain drop.

[@anonymoususer2784]

Could you share how to do it?

[@Boris247]

@@anonymoususer2784 I am trying, but KZbin keeps deleting my comment

[@CodeLikeMe]

perhaps you can send it to my facebook page. I'd love to explore what you suggested. also it would be very helpful for others as well. facebook.com/gamedevelopersclub/

[@kuro2ck]

I would like to see this, as my 3090 drops from 120fps down to 40 when the collisions are on. looks good but not useable in a game. :(

[@HasimFN]

can you make tutorials for unreal fortnite editor pls

[@CodeLikeMe]

what kind of videos would you like to see?

[@HasimFN]

@@CodeLikeMe euh instead of basic stuff more stuff that is trickier. Like a character following you and stuff. Or put fisheye lens on camera. There are a lot of basic tutorials but not more advanced stuff

[@Plaston_]

@@HasimFN But he does more this more advanced stuff, have you checked his channel?

[@HasimFN]

@@Plaston_ yeah stuff that doesnt work on uefn

[@Plaston_]

@@HasimFN it's because it's a more simple editor than the base UE editor, so you can only do simple stuff also all of his videos mostly worked for me so it might be a skill issue combined with theses little differences between UE versions than screw with any tutorial but this can be fixed if you know what you're doing.

[@realityengine]

This is how not to make rain in ue5. This method is too expensive.

[@CodeLikeMe]

So, what's the alternative?

[@realityengine]

@@CodeLikeMe some use screen post-processing, some use a volume that follows the the players character. Simply scaling your effect doesn’t account for occlusion of the effect. It takes up memory by rendering outside of the cameras frustrum. You’ll have rain where you don’t want it.

[@ColorBuffer]

trash low fps

[@cloudboysmusic5223]

shit comp, i'm getting 120fps+

[@ColorBuffer]

@@cloudboysmusic5223 Hey trash, if you cant show me a simple clip that shows your 120 fps, shut the fu up, ok? trash

[@pro.giciel9084]

@@ColorBuffer trash being