Common Mantaflow Problems & How to Fix Them!

Hello everyone! In this Blender tutorial we will be jumping into Mantaflow once again. There have been a lot of people having trouble with Mantaflow so I decided to make a video about common problems and how to fix them!
If this video helped you in anyway let me know in the comments!
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• Common Mantaflow Probl...
Blender Tutorial Mantaflow Fluid Smoke Simulation Particles Problem Fix How to Made Easy Beginner Animation

[@laurynaskeleras]

It took me like 3 days to figure out most of the stuff that was mentioned in this video. While there's no official documentation on the manual about how to troubleshoot the issues, this video will save you a lot of time. Great stuff, thanks for this!

[@kruddystupididiot]

why is the bake button not on my settings. ITS REALLY ANNOYING ME! PLZ HELP!

[@tomdrake4069]

can you run by me if you can how to water sim a cube falling down steps with water splashing inside? you touched briefly on it......ASAP PLEASE.....AYOUR WORK IS wonderfully inspiring.....

[@glitchystar1336]

TheModulator Hey switch from replay to modular and go to cache section of the domain and select an EMPTY folder..

[@glitchystar1336]

Took me 3 hrs before I actually gave up and went to youtube

[@jaredcrown5812]

@@kruddystupididiot Select Domain, then Select type, then change the option from replay to modular or All (blender 2.91.0 )

[@ligmaknutz]

My Fluid simulations never work, I add a uv sphere then then select fluid, then change the settings to liquid and inflow and domain resolution to 64. pretty much the same setting you use and see no particles when i bake data. this happens everytime

[@mumkichux]

you also need to change setting in domain and flow. Otherwise just select the uv sphere and then in object tab or search quick fluid that will work

[@smokeypillow]

Same here. No matter what I try even the simple sim setups don't work in Blender, just not worth the time anymore :(

[@BALDMONKGAMING]

make the sphere bigger and try again

[@jaredcrown5812]

At 1:00 Select "Is Planar" option for planes ( I believe this option is for planes cuz when i selected this option, it worked well) It works for cylinder or cube which has no thickness

[@habag1112]

Thank you! I couldn't figure out why my fluid was passing through the mesh, turns out the timesteps were the problem.

[@BlenderMadeEasy]

Glad I could help!

[@3d-mdsacademy307]

This is awesome! man. I have been scratching my head for days trying to figure out why my fluid will not flow through the pipe. I watched this video about fixing the normals and try it. Guess what, boooom....it worked great. Thanks for taking the time to make this tutorial.

[@octocypher1]

Thank you for this video. I watched several videos before this one, and none of them is as simple to understand and straight to the point like this one. Thanks!!!

[@BradPetersonArt]

that was awesome. I was about to start bashing head against desk.

I'm using the fluid simulator in Blender 4 and this video solved all my problems with dispersing particles. Despite the posting date, this tutorial remains current and functional. Thank you very much.

[@lennyface987]

YOU ARE MY SAVIOR!!! If this video didnt exist it wouldve tooken me much more time.

[@mixikpixi6123]

Thanks a lot maaan. I actually learned a lot, when u explained the most commont mistakes anybody could run into.

[@hbert06]

Thank you! 👍🏼 It did not fix my problem but at least now I know where it comes from. Another thing to mention for fluid sims with mantaflow: I never got a proper result when I tried to use real life sizes. I had to make a 60 cm wide cup to be able to 'splash' the fluid in a realistic looking way.

[@ratzitrax]

I can't believe this video has been online for two years and I'm just now stumbling across it! Thank you so much!

[@yosefstanton5470]

You are my hero. I would never have thought to turn the normals inside out and then change the thickness! So grateful you took the time to make this video!

[@BlenderMadeEasy]

I'm glad it help! Thank you!

[@immineal]

Oh my god, this was sooo helpful I struggled for the last 3 hours trying to fix my simulation when I would have just needed to turn up the Substeps! THANK YOU!!!

[@ultrakawaii4000]

Thank you, this made my day! Didn't find a solution for days and increasing the surface thickness resolved it :)

[@ahadmazhar4154]

omg I was having a weird issue with a tube leaking fluid and nothing would fix it, but your fix of increasing the surface thickness solved it immediately! THANK YOU SO MUCH!!

[@moneyarab]

all day trying to figure out why simulation wasn't playing and when i tried it outside the room finally it worked so after watching this vid I realized the room i was trying to play the simulation in had the normals on the outside and sim wouldn't even start. Huge help thank you

[@Iridesium]

Thanks dude this really helped me!

[@BlenderMadeEasy]

Glad it helped! Also love your videos! Keep up the good work!

[@TheDJkarsy]

Hello, thank you for this video! I am having problems creating a fluid sim running through a pipe where the liquid seems to hover above the surface of the inside of my pipe. Even with no surface thickness it seems to hover over it :( I've tried everything you've suggested in this video and more!

[@razz6539]

did you ever find a fix for this issue ?

[@TheDJkarsy]

@@razz6539 Hmmm, that was a long time ago but if I remember correctly pumping up the resolution size helps create smaller fluid particles. But of course that increases bake times. I would suggest getting Flip Fluids if you can afford it, I have been using it since and it is much better but it is pricey.

[@flipnap2112]

experimenting with blender. been using Maya since V1 (for my job) and Fusion for fun. also an old after effects guy. Problem with blender and learning is that they change so much with every iteration people get confused by watching tutorials online. example, it looks like they already changed 9:23 for the "bake all" part, from "type:final" to "type "all".. not sure why they would change something like this, when "final" made perfect sense. not entirely blenders fault, its just that people are following older (and by older I mean maybe months ago) tuts that are outdated and not working. this program is SERIOUSLY trial by fire. I've spent so much time doing tutorials over and over and over just trying to get a result. its a bit overwhelming. When I first started using fusion it was predictable and results were the same every time. they barely changed up the important things (UI and UX stuff) and it gave some continuity to learning.

[@twistedparticle425]

You are so right. Finding the right tutorials is really time consuming with blender because of all these videos of older versions on youtube.

[@Mich_Angel]

Thank you so much, this was great, just what I needed for one of my fire-smoke explosion that was not working and I couldn't figure it out.. now it is working just fine.

[@gastonveliz1769]

i been struggle with some of this problems, and i'm so grateful with this video, THANK YOU

[@emidiobattipaglia]

At 5:54 you can turn the tickness of the object to 1. the more you increase it the less problem you'll have with particles spilling out.

[@blenderinthegrass]

I'm not seeing a "Bake" button in my Fluid pane. Everything else is the same as on your screen, except there is no Bake button, but there is a checkbox for "Delete In Obstacle", which doesn't seem to appear on your screen. This is driving me crazy!

[@RylnX]

really thanks man really thanks you solved my all problems if you dont here i will not do mantaflow simulation. Thanks.

[@haydens1716]

Thank you!!! This has solved issues I have been running into for over 3 days. Subscribed.

[@pisciano87]

Hours watching a lot of videos without my currents problems and you made it easy!! Thanks a lot!!

[@kokoze]

Why didn't you mention the "Is Planar" checkbox when you talked about meshes that don't have a volume/are flat

[@techsobserver]

Can you explain please?

[@JohnAldred]

I was wondering that, too.

[@isabellegazan2]

So fun, I was attending your Udemy Mantaflow course, paused to make a google search, found this video. Then I started the course again and you explained the same :D Your course at Udemy is amazing, thanks !

[@dinoschachten]

Very nicely laid out! I would argue that bringing up the surface thickness is not always a nice way to go as it makes the fluid not touch your collision object anymore, but your explanation is very helpful to understand glitchy behaviour. :) More often than not I think it comes down to creating realistic objects (nothing in our world is 2D after all) and bringing up timesteps as you mentioned.

[@PaulPaul-uf9ns]

Never been baking so musch as now! Seems to be a problem with the simulation a lot. This video is great help. But still a lot of problems.

[@matbrady123456]

I haven't started using Mantaflow yet, but watching this first I feel suuuuper confident. Thank you so much!! Liked.

[@BlenderMadeEasy]

Glad it was helpful!

[@Akiruu_Sama]

Hi, as many people down here in the comments I was so much lost in fluid simulations errors. I watched a lot of tutorials, but they never explain thoses kind of stuff. So I would like to great you for this great video ! As the name of your channel, thanks to you it's really easier now !

[@dillonthomas5495]

This is perhaps the most helpful mantaflow video I've seen posted on the web. THANK YOU!!!!!!!!!

[@BlenderMadeEasy]

Glad it was helpful!

[@efrainprimero4859]

You rock!!! I was so stuck and didn't realize that I needed to bake the data in order to see the fluid flow! Also thanks for the advice on increasing the surface thickness - who knew?!

[@morafiee226]

Thx! My collision problem is gone! Looks way better!

[@batmobile5550]

Thx! I was trying to make a river and I didn't know how to make an obstacole for the water. Thank u very much!!!!!

[@notaboutfeathers2839]

When the inflow objact was too small compared to the domain sth that usually fixed it for me was too turn up the resolution of th simulation. Thank you for the great video it truly is a big help.

[@BlenderTutor]

Great tutorial! I've been having fun messing around with mantaflow, but have def run into some of these issues before

[@BlenderMadeEasy]

Great to hear! Btw I really enjoy your tutorials! Keep it up!

[@BlenderRookie]

Thanks dude, that solved an issue I had several times and couldn't quite figure out what was going on. My inflow object was too small. Subbed.

[@826keerthan9]

Your video appeared like a life saver for me..... Thank you❤❤❤

[@fazearbaax6083]

Thankyou brother. This video cleared all problems that i was facing in Mantaflow. Thankyou so much ❤️

[@HartmutNoerenberg]

very nice .. these are really the issues that you run into pretty often.

[@Liingworth]

Such a great video! I was looking everywhere for an updated tutorial on how to keep fluid inside an object, and it was just by chance I saw that you addressed that in this video! Thank you! :)

[@Khan-yy8qw]

Could you go over how to setup everything for render view? smoke and other similar particle effects don't show up in render view but work for others.

[@michaelgeorgearabic]

Most useful video ever! You answered the questions in my mind :) Blender crashes during baking. I wish you talk about this in the next videos. Thanks again for this tutorial. You're great

[@bobdobs8855]

This was terrific! Thanks

[@melbendigo]

You helped me keep my drink from going through my cup! Thank you! :)

[@mulanmiller5000]

Finally I was saved! Thank you so much - I was lost in so many tutorials…

[@erosion01]

When I use smoke noise the noise will phase through objects. It's not like the old way where it kind of subdivides the smoke making it a higher resolution.

[@GabrielsLogic]

Holy crap thank you so much. Your are the only channel I found explaining this well thank you so much I really appreciate it.

[@lonotattoo]

2 days wondering why fluid doenst collide with objects, thanks man!

[@AlienD09]

Thank you for making this video, other youtubers that are most popular, dont even mention this stuffs, that it seem are crucial for making simulations. Valuables stuff !

[@BlenderMadeEasy]

Glad it was helpful!

[@thelazyhuntress]

bro, this video is a GODSEND Thank youu 🙏🙏🙏

[@ammadejaz93]

Love you man... You just solved tons of my problems

[@ep8778]

Thousand of thanks !! you give answers for common problems in blendering simulation 👍👍

[@biblegeezer7844]

Brilliant! Addressed a lot of collision issues I had been having problems with. Thanks 😀

[@gianlucagoku]

Is fun to see how u solve all those problems, It would be even better if that solutions were enough to fix my simluation problems

[@paulojose7034]

Thank you very much, my fluid didn't work. Now it works !!! I thought it was a Blender 2.83 bug.

[@benmaydan6331]

Thank you so much for this video, it’s very helpful! Although I do wish I found it a couple of hours ago when I was debugging what was wrong with my simulation

[@benmaydan6331]

I’ve been trying to learn blender from scratch and this video is extremely helpful

[@StuSutcliffe60]

@Blender Made Easy thanks a lot. Trying to make a text a domain to fuel with liquid and didn’t show the particles. Will try this settings! Thank you!

[@BamBttv]

Hey, at 7:00 you can see that the fluid doesn’t touch the solid… how do you fix that ? Thanks 😋

[@lenkagamine9092]

this is amazing i had no idea i was making my flow object to small. 0.100m didnt wanna work and it was driving me nuts.

[@dwillingham]

Thank you so much! I was having so many issues with mantaflow and this solved all of them!

[@aztechnology.blender]

Thank you so much. It really helped me!

[@angeloferminodossantos5092]

You awesome man, it helped so much to understand better the functionality and bugs of these simulations

[@shadow_dancer]

Thank you for such detailed explanation of all this problems and their solutions. This is really helpfull !

[@rhomis]

2:57 Raising the Surface Thickness to 0.2 stopped the leaking from happening in my coffee mug mesh. Thanks

[@jonasblom516]

Great stuff, however I would like some additional information about what to consider when using outflows. The "universal fix" of surface thickness does not seem to apply there ...

[@bluegemphotos1614]

Magnificent video. This is a keeper

[@MrVilboux]

Really nice compilation. Thanks alot!

[@arqitype]

huge help and relief. thanks!

[@christianrabie344]

Thanx so much for this video. There is one dumb thing i cant figure out and that is how do you change the liquid mesh that you bake, from the particles (the blue, green and red dots) that you see in 1:09 to the solid liquid mesh you see in 2:53. Will appreciate any help you guys can provide! Cheers

[@christianrabie344]

LOL figured it out, I didn't check the mesh box.. Everything working fine now

[@SpurlinCinema]

You sir are a miracle ❤️

[@drinya88]

Sometimes, when i make water in Blender. I click Bake data, data bakeing, but after ending bake liquid don't spawn. And i have a one question. WHY???

[@thechannelitrollwith1645]

Just for other people in the comments: For easy visualization of normals that people don't use too often in tutorials, you can turn on the Face Orientation check box. Blue faces are outside, red are inside, and it's super quick to see.

[@cholasimmons]

Fantastic man, thanks. However, how can I create a liquid simulation that begins with a container already full of liquid? Rather than beginning with the simulation of filling it up

[@user-os2pp6fg4h]

thankss, you have saved my time

[@aaronspesard9572]

Thanks, this is great and the timesteps tip helps a lot.

[@miguelangelriveiro]

4:12 ..... I FUCKING LOVE YOU MAN!!!! I have been struggling with this for a good part of the day! THANKS!

[@TheSoapThatCan]

So useful! This is exactly what I was looking for and helped with my problems. Gold video!

[@seismicgasbag]

If your domain is being rendered in the final animation/picture, try keyframing when its rendered. Just random advice I wish I've heard days ago lol. Great vid though by the way, very helpful.

[@rusticagenerica]

Very precious advice. how do you to his precisely?

[@JotaJotaCasa]

This video is SO informative. Thank you!

[@parmindersinghsandhu1212]

thank you sir. It was very helpful

[@raghavgupta1118]

OMG THANK YOU SOOO MUCH MY COLLISION OBJECTS WRENT WORKING IT WAS THE NORMALS!!! SUBBED

[@BlenderMadeEasy]

Thanks for subbing!

[@raghavgupta1118]

@@BlenderMadeEasy lmao didnt expect you to reply

[@sikhostudio]

it's really help me mate. thanks a lot

[@philosophyfrog2653]

Extremely useful video 5/5

[@astridsteiner5206]

Great video! Really helpful stuff, I have learned a lot from your videos. I have been trying to simulate a giant wave that breaks and crashes - without luck. I haven't come across a tutorial on how to create big crashing waves, maybe that's something you'd be interested in exploring? Thanks for all your great work!!!

[@limdoha]

Very helpful. Thanks!

[@nocaster89]

Thank you so much, you just saved me a lot of time and frustration

[@wonderlandmagic8764]

hello i tried the tutorial and it was going well and all, i baked it too and it was looking fine but then i had to shut down blender and open it again and animation wasnt there...no water animation nothing onlu cube and circles... could you help me with this problem i dont know what to do...

[@vikasmayekar13]

You know what.... You are a Fucking Genius..... Not because you know what you know....Its because you know what people do not know

[@sublimecg8605]

Super Helpful!!! Thanks so much :)

[@SevrinK]

I don't have a bake button! Is there a setting I am missing?

[@experimentalchaos5853]

Fabulous video for beginners.. really very very helpful.. I still have one problem though.. when I simulate fluid, between the effector and fluid, there is a small gap. how can I remove it so that the fluid gets touching the borders of the effector. Thanks in advance

[@uzairbukhari99]

Thanks for the solutions. I had some of the mentioned issues.

[@NervusEnergy]

Another problem I get a lot is that the fluid doesn't quite touch the object it's supposed to be hitting or resting on. I've played around with settings to get it close but I'd love to hear how you solve this. Thanks!

[@shahanashaikh7061]

Try reducing the surface thickness of the object.

[@LineOfThy]

@@shahanashaikh7061 it's still floating even with a thickness of 0

[@BlenderQuick]

Really informative man thanks!!

[@micah6861]

Thanks so much, this is awesome! 💖

[@Stef-an]

Useful video, thanks a lot!