Unreal engine 5 - Collisions between particles- Position based dynamics - motion graphic

[@kickheavy8982]

Awesome man! Thank you so much for this! I've been searching youtube and google for pbd niagara tutorials and I couldn't find very much. This is the best explanation Ive seen for this so far. I don't know why there aren't more videos covering this topic.

[@jazznezzz]

Super cool and helpful! Not much PBD content out there. Thanks for sharing your process and the result looks great!

[@MaxChe]

Whoa, that's so cool! Finally, interactive motion graphics!

[@smartbobert]

Thank you very musch! I waiting for this long time!

[@kspmn]

Wow! All this content and info is pure gold! 😅

[@Bappolapap]

Superb! Straight forward thanks you so much - was struggling getting the collisions to work correctly , thanks to you it'll work perfect now !!

[@fabaogc]

This is awesome, super fun!

[@SanjeevKumar-be4dd]

Collision not working on Default Floor & sphere balls.....Please make an updated video using unreal 5.4.4....

[@sumours]

@@SanjeevKumar-be4dd work perfectly on 5.4.4 you probably don't have distance field enable or set on your meshes

[@SanjeevKumar-be4dd]

@@sumours i mean i checked collision on floor mesh & ball mesh...then i set distance field scale on floor to 5 ....still not working.....i just don't understand what i'm missing.....it didn't change much in particle emitter just added gravity and remove point attraction....most stock setting....still balls not colliding with floor.....do i need to enable something in project like plugin or any settings ?

[@keithlynch9846]

this is great, thank you! sorry if i missed it but did you say where you got the coffee bean asset from please?

[@denysvictoriano]

Hello! Where can I find these Niagara Levels? Is it an effects pack made by you? I use version 5.2 but it doesn't appear here for me... Thank you!

[@sumours]

www.unrealengine.com/marketplace/en-US/product/content-examples

[@johnheavenly3552]

This is amazing!

[@citamus]

Omg thanks a lot. I have one question tho.. if the mesh is not matching the collision ( I need to simulate a tennis ball so my mesh is a sphere with some texture on it and a sphere collision) should I have to decrease the collision size in niagara? Because it's making some strange effect.. thank you again man

[@geraldo.goncalves]

Thank you!

[@cgspain1052]

Hii, need help! Do you know why I do all the same but my objects dont impact to the floor exactly?? but the simulation its runs

[@sumours]

mmh, you probably dont have distance field on your floor mesh ?

[@MichaelvanDalen]

Amazing tutorial! I got everything to work except for one thing. My meshes don't collide with each other. They do with the table and such, but not with each other like in your video. My mesh has no scale factor. it's all set on 1,1,1. So I figured it might be the collisionRadius or the distance mesh field. So I tried increasing those values as well, however I keep having the same issue. If you have any tips it's much appreciated.

[@sumours]

Mmmh this is weird you have collision with ground but not between particle, I don't know : / as you say is probably the radius of collision. Keep in mind this is only a sphere radius for collision not the shape of your mesh.

[@peterallely5417]

So good. Might I ask where you got the coffee bean mesh from? Thanks

[@Gaientv]

t'es le meilleur !!!

[@FhayAlonso]

Sorry, I want to follow the tutorial but when I start I already encounter my first obstacle, where do you get the particle system that you start with? Is it something active payment?

[@sumours]

completly free :) www.unrealengine.com/marketplace/en-US/product/content-examples

[@FhayAlonso]

@@sumours Thanks!

[@aaronhesse]

Amazing man, thank you so much for this. Any chance you could explain how to make the particles follow a render target using this PBD effect as a base?

[@sumours]

You can follow this tutorial kzbin.info/www/bejne/eaOyiHynf8iaq68 or using this file from my patreon to dig in it www.patreon.com/posts/project-files-5-95330243

[@sooeyfish]

I'm very novice. Can you make a tutorial on how to create the original PBD system? Would love to learn how you made the Populate grid and populate Neighbor Grid.

[@sumours]

I just use the PBD created by Epic in the content example. I'm more visual than technical artist, so in fact I have absolutely no idea how they do the original system =D

[@t.venkatesh92]

can I know whare can I find niagara advance level?

[@metatrox]

Epic my man! BTW I have tried to add 3 different meshes to the mesh renderer but it only see one. Any idea or setting?

[@sumours]

Work fine on my side, in mesh renderer you have to clic on + (right side of the mesh to add a new mesh), after that in the initialize particle / mesh attribute tab, you need to set the "Mesh renderer Array visibility mode" on random

[@terabaap2104]

used the same 3d model but lags horribly when bumped the particle to 1500

[@sumours]

Everytime I use a 3D model as particle I drastically reduce the number of polygons in blender

[@terabaap2104]

@@sumours can you tell me how much you reduce it for example?

[@sumours]

@@terabaap2104 there no specific number, if the model still look good I reduce much as I can : )

[@terabaap2104]

@@sumours one last question my all partricle stay flat on wood they dont stack , please help?

[@pxrposewithnopurpose5801]

Them accents are wild 💀

[@eraniopetruska5701]

Hello! Can you share the UE5 version that you're using. A lot of dependencies are lost when I am trying to migrate. I use UE5.03. Thanks!

[@sumours]

Hello, for this tutorial I use 5.3, but I did differents tests with 5.1, and 5.2 and everything is fine on my side. Epic add this niagara exemple in 4.26 so theoretically all following versions should be good.

[@eraniopetruska5701]

Unfortunately is not the case as of today in 5.03. When you open the content examples project you get a message that the Initialize particle module is softly deprecated and will be fully deprecated. If you replace it with a Niagara module a whole bunch of dependencies start to fall apart. @@sumours

[@beatricedibiagio5236]

Hello! ? need your help! The particles don't touch the surface or floor very well, it seems like a collision error. How can i solve it? Thank you!

[@sumours]

Upscale the resolution of your distance field mesh as explain in the video or Another thing I don't explain is your mesh should have a uniform scale don't deform him to keep a good distance field pass.

[@beatricedibiagio5236]

@@sumours Sorry, I scaled the object using 0.04 but I have problems with the collision on the floor. If i put bigger scale like 0,2 the collision it's ok. The problem is that my object now is out of scale. How can I resolve this? Thank you very much!

[@sumours]

@@beatricedibiagio5236 try to >> scale your mesh as you need and export your mesh in FBX, reimport your new mesh and that should work (distance field don't like scaling all your should be at scale 1, 1, 1)

[@keithlynch9846]

@@sumours thanks for this awesome tutorial. i've also got a similar issue. I've checked the static mesh of my coffee bean and the collision mesh is accurate to the bean, but I can see from the way the bean rolls in the simulation that it's rolling like the collision mesh is a sphere. Are there any settings within Niagara that would cause it to use a sphere collision mesh over the one in the static mesh?

[@sumours]

@@keithlynch9846 Unfortunately this process only work with a sphere collision, you cant use a custom collider. I asking Epic for more possibilities in the futur.

[@hp651106]

💗💓💯

[@alhimikjb5633]

❤❤❤❤❤❤❤❤❤❤❤❤

[@lummi_vfx]

Very cool tutorial! Is there a way to render out the sim cache with path tracer? It works great with lumen, but as soon as I turn on path tracer all the niagara particles disappear..

[@sumours]

Thank you : ) I don't use path tracer, so I haven't tried yet.

[@lummi_vfx]

I understand. I have a similar issue when using ray traced shadows with lumen that my shadows disappear. I guess it's not supported? :(

[@yousifmajid5328]

how i can make the Collisions smaller with mesh

[@simonflash_edit]

such an awesome tutorial. Thank you so much for sharing this!

[@sergeykenikh6917]

Хотел бы выразить Тебе благодарность за то что Ты делаешь. Я купил эту подписку на и просто восхищаюсь твоим трудом, а постановка кадра это вообще отдельный разговор. С самыми наилучшими пожеланиями.

[@sumours]

Thank you very much for your nice comment : )

[@memeproductions4182]

The best tutorial on Position based dynamics you can find right now. I noticed using it, that collision is fine with static meshes but they ignore my player, maybe because it's skeletal mesh?

[@sumours]

This is mainly because we use Distance field for collision, and Skeletal is not in the distance field pass I think.

[@bharat5194]

Cool stuff

[@idolgalaxy69]

Good Job! can it be simulated with skeleton mesh animation?

[@sumours]

I did not try, but I've seen few examples that do it like this one vimeo.com/425280683

[@idolgalaxy69]

thanks~@@sumours