1 Million Fish? How to Simulate Fish with Niagara in Unreal Engine

[@TheGrrson]

Great tutorial! I'm going to try to adapt this into a sparse cloud of fireflies in a forest environment. I just started with Unreal and love it. I'm glad I discovered your channel! Thanks for sharing!

[@azielarts]

Amazing!!! So happy to hear you found it helpful. You can also check out my video on glowing dust particles if this is overkill for fireflies

[@TheGrrson]

@@azielarts I will definitely have a look at that one. Thanks again!!

[@FlatThumb]

Has to be one of the best tutorials I've seen in a while! Looking forward to looking at the rest of your channel!

[@Strevehn]

Your channel is so underrated my man, I hope it grows in the future as it should. Keep it up :)

[@azielarts]

Yo! Such an encouragement 💪 Thank you!

[@UE5n00b]

facts

[@wayne9954]

Your channel is amazing, great pace, great contact with the viewer, you explain what you are doing and why you are doing it. Definitely in my top 5! Subbed and liked!

[@azielarts]

Thank you so much!!!! You rock!

[@narikinareke6265]

Awesome! Very clear and concise. Thank you!

[@markcooke4866]

Fantastic and detailed explanation of not just what you're changing but why -- immensely helpful!

[@TheNitroG1]

I've been watching for 2 minutes and I can already tell this is going to be a great tutorial your actually explaining things step by step and what is going on...I can't tell you how many "tutorials" i have tried to complete where they do hot keys they don't explain, drag in things from or set options off screen, gloss over important details like "set the world size".

[@markopolo2224]

your explanation is top teir thank you so much

[@elenadmpl]

protect this guy with any cost

[@IvoPoetzsch]

Great Tutorial that covers all aspects. Thx for ure Work!

[@azielarts]

Absolutely! Glad it was helpful 👍

[@godbrz]

in your properties module you have it set to CPU. If you want to make a particle system with a lot of particles, you should be setting your sim target to GPUCompute Sim and change your calculate bound mode to fixed. CPU sim target isn't meant for this job.

[@GWAFEM]

Exactly and it's not 1 million fishes total since there's a lifetime. If it's 5 sec, it's 5 million total depending of the emitter cap.

[@FPChris]

LOVE this. Now do a flock of starlings over a field.

[@PigeonSlayer]

Replace fish with Starlings, done.

[@azielarts]

Ha ha great question, I do need to do one on birds.... just as soon as I can figure out a good simple way to do it.

[@jysn101]

@@azielarts i was going to ask if its possible to use alembic rather than FBX for animated wing flapping cycles.

[@FPChris]

@@azielarts Seagulls!

[@elenadmpl]

THIS IS GREAT THANKYOU

[@azielarts]

You are very welcome!! I am so glad it was helpful 👍

[@MAJmufin]

Very cool video man. It was easy to follow and I especially loved the explentation for each step you made inside Niagra and why you made them. That is info that is hard to find and will help someone further in 3d.

[@azielarts]

Amazing!! I am so glad it was helpful 👍 also thanks so much again for joining the Livestream!

[@seismaisdoiss7215]

Great tutorial TKS!

[@smphspaminside1453]

im really glad that i found this channel, auto subscribe

[@azielarts]

Thanks so much! Happy to have you

[@Aksenization]

That's very cool! Is there any possibility to make the fish swim on an evenly defined trajectory? For example, along the aquarium.

[@Extrvisor]

amazing work!

[@azielarts]

Thanks so much 🙏

[@shanliumoshi7904]

Thank you. I have finally learned a way to make a school of fish，Your tutorial helped me achieve this, and you are very good

[@LongTran-xw5yp]

Thank you so much Aziel. Please keep releasing videos. Learned a lot from you bro!

[@crea3237]

Thank you so much for the detailed introduction! its so fun (and the final result is impressive!

[@azielarts]

You are very welcome, and thank you!!

[@Native_Creation]

Very awesome vid, great overview and an absolutely epic achievement. A majestic ending.

[@azielarts]

Yo thanks so much!!! Glad you liked it. Question: are there any topics or problems you are having that I could help with a video on?

[@Benn25]

incredibly usefull, thanks a lot! maybe the final optimization for the 1M fishes can be done with a very aggressive LOD, like max LOD under 2 or 3m, the rest with crappy LOD.

[@azielarts]

Right on! Yeah, I think you are right about that. It going to have to be a super aggressive LOD system.

[@allashama]

Hi, is it possible to use Niagara with Collision to do a Tower Defense? Unreal Vanilla support extremly badly an Actor moving, so when you have 300 actor in a TD, moving, the Engine Lag. Using Niagara particles with Collision detection can be an option, no? thanks!

[@TorQueMoD]

Great video! Thanks for sharing your technique :)

[@azielarts]

Absolutely 🤙 happy to help

[@middleagedshred]

Is it possible to control the fish particles..mabey box select them and send them to a location with a mouse click?

[@rickfuzzy]

love your work

[@azielarts]

Thanks so much Rick! Made my day

[@Madd_Jack]

I've honestly lost the fire for this industry for too long. But this sort of thing gets me excited to get back into it. Anyone know what the background song is throughout the explanation?

[@donovanyoung7821]

That is amazing!!!

[@azielarts]

Thank you! It's fun right?

[@dongraparesh]

Superb ❤

[@azielarts]

Thanks so much 👍

[@iPEMiC.]

Do you have any video about Niagara position base dynamic please?

[@kenalpha3]

Good skill teaching. Can you do a video on how to make Fluid streams (e.g. a shower jet =multiple streams, or water facet) that: 1) Has collision, 2) flows around the SK player body (e.g. each arm or hand) and not just Capsule (looks fake)? I believe that this can only be done in 5x with the new Fluid Niagara sys. So it would help if you show how to set that up. Bonus if you can do a 3D slim effect (which is like the Fluid stream): it falls on SK player, then drips down. Thanks. I have an unanswered question about UE and how to make wiggle particles that have a thickness. I.e. are they meshes and they use your trick to bend the verts by using Material code? E.g. I saw a game made with 4x or 5x that had Scifi slim/trail/tendon that went from the top of a crate to the bottom of the floor, at an angle. And this wiggled and seemed to have some 3D thickness (didnt look completely flat like a Plane). So what type of asset would that be? SM/SK with cloth sim or SM with bend vert Mat code? I want something that I can shoot at or player passed thru it, and it wiggles or breaks. Idk if 5x Niagara can make a particle sys that forms together like a 3D ribbon; then particles break apart if enough X force is applied? Thank you.

[@MetricZero]

Would it be possible to use these as enemies in a game? How would you go about doing that?

[@Yoctopory]

You know what could be awesome? If you made the material reflect the sunlight back. So when the swarm moves these characteristic reflection patterns happen that are common in large swarms

[@SanchrismaRivera]

Que genio!!!, justo estaba buscando este tipo de vfx para hacer, cool!!!...thanks!!!

[@Cutlass2436]

can you use both sprites with meshes in niagara?

[@azielarts]

Yep you can use both👍

[@차승준-m9g]

Incredible

[@azielarts]

Thank You!!

[@Se-wangKIM]

many thanks~!

[@azielarts]

You are so welcome, glad it was helpful

[@shifatkhann22]

what is the budget?

[@shanliumoshi7904]

Hi, when I switched to sprite rendering, when the fish turn to move, their up and down directions will be reversed, why is that?

[@shanliumoshi7904]

When they are generated, the movement is affected by the attraction and does not guarantee the correct direction of rotation

[@azielarts]

Good point, I am running into that also, I am sure there is a way to always pointing up. Let me know if you find it 👍

[@IbizaInnercity]

Same in life bro, they say "there is plenty of fish in the ocean"...but my PC just crashes at low numbers :/ Great tutorial, obviously subscribed and will lurk your channel :D I thank you.

[@williamminnaar6311]

Hello there - Thanks for the great tutorials - A question :) I have a hopping frog {Skeleton Rig with hop motion} that I want to spawn many - How would I make the spawn many from a point - and the hop out using navmeshbounds - Please :)

[@azielarts]

That is a good quest I look and see if I can come up with a good process

[@punkpin]

So sad that KZbin's compression system basically killed the "wow" factor of your final reveal!

[@azielarts]

Lol can't win

[@Enryo_tv]

This was amazing to watch !! really liked the 1k rate. appears quite realistic. Could u perhaps try a spwn rate with 1k with sharks XDDDD

[@realmcafee]

dude, i could use my computer as heater by adjusting the spawn rate scale. it cost so much resources omg. i thought its a revolutionized technology that does magic by using assets as particles or something.

[@HoomanBhr]

Great tutorial . keep it up

[@jamesgtmoore]

Why is it not possible to use SimTarget == GPUSim in this case, please?

[@azielarts]

Yes I tested it as a GPU sim as well, for some reason I got better results on cpu🤷‍♂️ maybe there was another bottle neck in textures or something. Usually I would go for GPU for high spawn rates, but this one ran smoother on cpu. I think it is worth looking in to, because I don't know why that would be

[@jamesgtmoore]

@@azielarts thanks for the info

[@itscoldcoldwinter]

can u make a video what im players gost to fish and hits them can u make them to change directions

[@azielarts]

Yes that is a good question. To be honest I am still figuring out the best way to do this myself. You can turn on collisions, but at the moment it that will just make them bounce off instead of try to swim away. I will make a video on it when I can figure out a simple solution 👍

[@itscoldcoldwinter]

aha coo; @@azielarts

[@lemapp]

Opps. Equipment issues. Your sound is fine.

[@azielarts]

No worries, glad you worked it out!

[@He-Is-One-and-Only]

100k fish would be enough. Tbh

[@azielarts]

Haha yeah I agree

[@lion03]

Every niagara system with more than 1000 particles should be a GPU system and not CPU.

[@notrealquanluong]

I came here with a different kind of expectation on how to edge but it's alright.

[@joshjen1129]

How would I go about looping this? Amazing videos btw!

[@azielarts]

Ooh looping, hmmm that I am not sure about. Need to think about that

[@shakaama]

why MAYA.... sir Blender... let us sit and chat about our lord and savior blender and how he has blessed us all, with all his magnificence. Maya is not de way. Blender is da troof

[@azielarts]

Hah lol I guess I sold my soul because there are more Maya jobs out there ;) but in all seriousness, both are great. It depends on the industry. Film/TV is all Maya, but the game industry has a mix of Blender and Maya. And if you are making your own stuff, it is whatever helps you make the best art !!! A lot of people prefer Blender

[@rremnar]

I made a similar remark and it got deleted twice. Blender is a free open source software; you don't have to pay over 200 a month for.

[@azielarts]

Hmm strange, I don't delete peoples comments. Anyways, it is a valid perspective. If you really want something free and still very powerful I agree Blender is an awesome choice. @@rremnar

[@man_art_man]

I stick personally to 10k real fish 🐟 mesh. Not a optimized plane .. looks amazing 👍🏻👍🏻👍🏻

[@lemapp]

I had difficulty hearing you over the background music

[@azielarts]

Thanks for the feedback 👍

[@mrksdsgn]

What about 10 000 000?

[@azielarts]

Lol don't know why I didn't think of that😂

[@itscoldcoldwinter]

they need to change this name for me that english it’s learned from playing fortnite i never say the name due i dont want to say racism

[@mehmetbaspinar25]

ty mate

[@azielarts]

Welcome welcome. Anything you are struggling with that I could help with a video on?

[@mehmetbaspinar25]

hi , I desing a shark in blender and I need sweam to sea in UE can u help me ? @@azielarts