Fluid Simulation Decoded | Bathtub Example | All Fluid Settings Explained | Blender Eevee & Cycles
ฝัง
- เผยแพร่เมื่อ 29 ก.ย. 2024
- Creating your first water simulation in Blender can be very interesting, and yet very frustrating as well when things do not work as expected. In this tutorial, we have discussed all the basic aspects of Fluid Simulation in Eevee. Instead of going with the quick liquid effect that comes by default, we have setup everything manually from the scratch so that you get a complete understanding of what is happening behind the scene. Please watch the video for the complete tutorial. If you have any question on this tutorial, please leave your comment below.
Here are some related tutorials that you can also watch:
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𝐓𝐡𝐚𝐧𝐤𝐬 𝐟𝐨𝐫 𝐲𝐨𝐮𝐫 𝐝𝐨𝐧𝐚𝐭𝐢𝐨𝐧𝐬 👉 donorbox.org/5...
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#Blender #Animation #FluidSimulation
If you liked this tutorial, please consider making a small donation, it will help us!
𝐘𝐨𝐮 𝐜𝐚𝐧 𝐬𝐞𝐧𝐝 𝐲𝐨𝐮𝐫 𝐝𝐨𝐧𝐚𝐭𝐢𝐨𝐧 𝐡𝐞𝐫𝐞 👉 donorbox.org/5-minutes-blender
😮Can I ask you how do you get a computer voice to talk that good it's like you have your own announcer that works for you??
Ha ha 😂😂 The future is AI 😉
transparency? reflection? those to things I mentioned can make the water better
Yes, true 👍 We primarily focused on the physics part here, less on the appearance.
Unfortunately the water doesn't flow out of the sphere in this tutorial
Hi, there are several things that need to be taken care of, otherwise the fluid simulation may not work. 1) The domain resolution should be sufficiently high if the size of the sphere (flow object) is too small compared to the domain object. 2) The flow object must not be covered or engulfed by the effector object i.e. there should be some gap between the two - and this gap again depends on the domain resolution, so if they are close enough, the domain resolution should be very high. 3) The cache files may not get refreshed at times. It might say that it is refreshed, but the cache files stay as it is. It may need a manual cleanup. These are the main 3 causes that I have seen in most of the cases. If you are still unable to see any flow, you can send your blend file to us, we will look into it and suggest you the solution. Our contact details (Email IDs) are given in the About section of this channel. Thanks !
over ''Bake Data'' it says ''non resumable ...ill not be possible'' what should i do ?
Probably you did not select the "Is Resumable" option when you baked it. You can simply delete this baked data and bake it once again with "Is Resumable" turned on.
How we will pour liquid from one container eg one bottle to other bottle
We need to keep the flow object within the first container and also make that container and the new container as effector objects. The liquid will then come out of the first container due to gravity (if it is placed with a tilt) right above the new container.
So, I think the process is:
1: Active Quick Fluid
2: Switch from "Replay" to "Modular"
3: Bake in this order: Liquid, Mesh and then switch from "Modular" to "Bake All"
You are one of the very few non clickbait youtubers that use text to speech voice.
I am glad that you liked our videos despite some constraints 😊 We try to make our tutorials quick and useful knowing very well that we lack in some other parts of the presentation. Thanks for the inspirations you gave us 💝💝
NOW SOLVED (Edited Update)
7:31 No Blue dots, after my second and third attempt. (worked the first time)
It still bakes, I just don't see the blue dots in a preview action.
I had to clear the cache. Changed the resolution up one notch. Literally empty the entire cache folder, because I realized I needed to scale the entire project bigger.
Now I cannot get the blue dots to appear, unless I uncheck the domain Fluid at the top. And then re-enter all the parameters for the domain.
----------------
HOW TO FIX THAT PROBLEM
Using Blender 3.2.1
The visibility of blue dots become "non visible" for some unknown reason.
But to get them back, I did this in Object Mode:
- Select the Domain mesh
- Click Particle Properties tab
- Click liquid in the Index List box
- Click "Render As" and then chose "Halo"
Okay. So did you resolve it already? If the issues still persist, you can share your blend file with us, so that we can investigate and suggest you something. You can get our contact details in the About section of this channel. Thank you!
@@5MinutesBlender SOLVED!!!
Using Blender 3.2.1
The visibility of blue dots become "non visible" for some unknown reason.
But to get them back, I did this in Object Mode:
- Select the Domain mesh
- Click Particle Properties tab
- Click liquid in the Index List box
- Click "Render As" and then chose "Halo"
Thanks for your REPLY!!!!!!
I want to make animation in which water is coming from pipe (very fast speed) and hiting rock and at same time
removing dirt from the rock
How can i do it?.. help me
I think removing the dirt is the challenging part, rests are easy if you follow this tutorial. For dirt removal, the best way is to use a shader technique. Create the dirt using a shader node tree and remove them by animating the dirt factor with time. But unfortunately, how you can create dirt using shader is not possible to explain in this comment box. I believe that you can look for another tutorial on that.
@@5MinutesBlender what if we can generate and use force coming water mesh, after baking water
@@Prathameshteliprt If you want to make it in the realistic way, you need to use a particle system to create the dirt - maybe millions of particles. 3D animators seldom do that because it becomes so heavy on the computer. And in that case you can use the actual force vector of the water to displace the dirt particles. Actually Geometry Nodes will be a better way to do this instead of particles (but that does not lighten the load on your computer, so I did not suggest this).
Cho hỏi phần mềm thiết kế tên gì vậy
This is created using Blender which is an open-source and powerful software. You can download it from www.blender.org/download/
Sir , how can add realistic foam and spray?
We have discussed foam tutorial along with ocean modifier here 👉 th-cam.com/video/n_Z2oMTdDdI/w-d-xo.html We do not have a tutorial yet on spray, we'll do that.
𝐍𝐨𝐰 𝐰𝐞 𝐩𝐮𝐛𝐥𝐢𝐬𝐡𝐞𝐝 𝐚 𝐭𝐮𝐭𝐨𝐫𝐢𝐚𝐥 𝐨𝐧 𝐎𝐜𝐞𝐚𝐧 𝐒𝐩𝐫𝐚𝐲 👉 th-cam.com/video/QRRKjWhk7kg/w-d-xo.html
Awesome👍 your video length short but importation more I will easily understand thank you for your video
I'm glad to know that you found our tutorials useful 😊
Will blender simulate surface tension and pressures? Like a straw with water in it and a finger on top. Will that simulation correctly show the water held in straw if straw ID is 4-8mm in diameter(Rayleigh-Taylor instability). Will it model a siphon?
Never tried that. Keeping in my to-do list, will surely check this when possible.
bam look at the pipes on that one
It's just a matter of time, you'll become big. Nice video.
Thank you so much bro, for your kind words 💝
Thank you very much dear sir 🥰🥰🥰
Watched BUT haven't tried it YET I put it on the list of MUST DO 😁 soon. thank you for video.
Hope you enjoy it! 💖
Holy crap this is useful! Thank you so much!
Glad to know it helped! 😊
My only dislike with your tutorials is the constant thump..thump..thump music in the background, it is a bit off-putting. How about something calming?
Thanks for your feedback. We will seriously think over this. In the initial days, the sound mixing was not good. Over time we reduced the BGM to a level barely audiable. If it is still disturbing, we will turn it off. Yes, we are using very calm music as well as some beats, alternatively. Thank you so much for letting us know what causes irritation to you as a viewer. We hope to make your experience better going forward.
@@5MinutesBlender Thanks. 🙂
Can you make for another simulation. I want to learn more about simulation. Btw, nice tutorial
Thanks Radhin. Yes, more such simulation tutorials are coming up soon. Stay tuned! Meanwhile, you can also check the smoke & fire simulation tutorials on my channel. They will give you a solid hand over the basics of any simulation.
@@5MinutesBlender I'm checking them out ASAP!! I found your other fluid one with the collision object that one helped me out on this one!!!!
This was pretty easy! I stopped and started with each instruction, only got stuck a few times, then made it through. Didn't take long at all! I'm SO subscribed! 😃
Excellent! Glad to know that the tutorial helped you! 😊
will be be able to put a tutorial to show flow of oil in a hydraulic system, where the oil passes through filters/valves
Hi Ramanath, thanks for your suggestion. We'll make this tutorial sometime soon!
Please upload waterfalls tutorial
Okay, noted down. We will plan for this.
@@5MinutesBlender thank you
Hi I really enjoy watching your tutorials. Thans for that. I don't know why but while i am making a pipe my shape turns into a donut. Please tell me how to fix that. my version is 2.80
Glad to know that you liked our tutorials 😊 For the pipe, are you using Simple Deform Modifier? A wrong bending through Simple Deform Modifier can create an incorrect result. This tutorial can probably help you 👉 th-cam.com/video/KgM-nWTHAJU/w-d-xo.html
@@5MinutesBlender Thanks for the attention. Yeah i was doing wrong. Finally found it
@@davronbektursunov3505 Glad to know that you resolved it!
Great Tutorial, very easy to follow and got great results.
Glad to know that it helped 😊
thank you
thanks man!
Teaching style is very nice. keep it brother.
Thank you! Glad to know that you found it useful 🙂
Looking good
lol this guy doesn't know how to go to side view or edit mode
I'm happy that you got something to smile at, laughter is good for health 👍🙂
@@5MinutesBlender sarcasm be like
Great tutorials, thank you
Glad you like them!
I love your video so much!
Thank you! I'm feeling honored ❤️
cool tutorial
Thank you bro!
beautiful tutorial unfortunately my pc I can not reach so much I wanted to do a simulation but I just wanted to make splashing water and the object had to be very small and for it to simulate that I have to raise the resolution a lot like about 100 and my processor is not very good like that I had to cancel my project until I could buy a better processor, it makes me a little angry because it is the project I had done it a week and due to limitations I had to discard it u.u
You can do it! Believe me, I have successfully did a splashing water project with just 64 resolution division in Eevee. It was surely not perfect, but it was within acceptable range. You can watch our tutorial on splashing effect 👉 th-cam.com/video/38eiWHtw-ps/w-d-xo.html The key to make it work with lower resolution is to adjust the real-life size of your domain and your flow object. The flow object does not work perfectly if it is too small compared to the domain, and the domain object does not work perfectly if it does not have sufficient resolution division. So, with resolution division fixed at a lower end, you can play with the size of the objects and achieve a decent result. All the best!
@@5MinutesBlender The problem is that when I make the small object which is a sphere where the liquid is going to be simulated, the simulation is not seen but if I increase the resolution it appears but I must increase a lot
@@keyd10iori I can understand. Please try with a smaller domain. If your domain is big but flow object is small, it needs higher resolution divisions for the liquid to be visible. There is a sweet spot among the size of the flow object, domain object & resolution division. You can find out that sweet spot by doing some experiments for your particular setup. It may raise some frustrations initially, but once you get a hang of it, it will look very easy. All the best.
@@5MinutesBlender I mean, if the domain, in this case, I make the cube smaller together with the sphere where the liquid is simulated. It can be seen. I didn't know that. Thank you, I'm going to try.
@@keyd10iori One more thing that can help. You can use an appropriately sized cube (big or small) for creating the splashing effect, only at the physics level. Once you have your physics simulation ready, hide that cube. Now add another cube and give it the same motion like the hidden cube. You can change the size of this visible cube as per your requirement, it won't affect the physics simulation because you won't turn on its fluid properties. This way, you bake your simulation with some object, and actually display a slightly different object in the render. If the size difference is not too much, it will look almost realistic, and the difference won't be noticeable. You call it a hack? Sure it is. But it can save our valuable time!
Hello...let me first say that I just found your channel yesterday. I have had Blender on my computer for over a year and it was just a couple weeks ago I finally decided to give it a look. For an absolute novice like myself, your channel is a masterpiece in clarity, brevity, and precision. I have never subscribed in my life to a TH-cam Channel. You are the first...that's how good you stuff is. You make me want to learn Blender and not be frustrated. Actually, I am getting excited because I finally figured how to utilize the 3D objects I create in AutoCad for Blender.
So, this evening I gave it a shot to follow you along on this water simulation. I got everything done, except the fact that when my water comes out of the pipe, it doesn't have that nice wavy flow like yours. it simply arcs downward like the exterior of a hose. is there something I failed to do?
Thank you so much for your nice words! I am happy that you liked our tutorials 💝💝 Regarding your question on fluid flow behavior - let me tell you what I have experienced. The flow automatically becomes turbulent at times, and other times it is very streamlined without any distinguishable character. For me, it happened at random. Clearing the bake and making slight modifications to the physics settings sometimes brought back that turbulent natural flow. But if that does not happen, we can make it happen. For the flow velocity, we have used some value in the tutorial (say 5 m/s). You can add some noise to that velocity - so that this value does not stay just at 5, it fluctuates little up and down. That will be sufficient to create the natural flow we intend to see. Now since you are still new to Blender, you may wonder how to add noise. We do that through graph editor (and even that may sound new to you). Fortunately, we made several tutorials covering these topics. You can start from here 👉 th-cam.com/video/PlThnja6KmU/w-d-xo.html Although it does not talk about water flow, but it covers how to add noise to any animatable property like velocity, position etc. All the best 👍
Blenders water sim is not good - why for example does the water flow go all crazy - i cannot find a way to get a smooth straight flow - also the mesh is way to too big - there seesm to be no way to control either size or flow stream in a straight line
Hi, I can understand. Initially it might look very difficult to control, but I believe you can take far better control on the things with little practice and experiment. For example, you can control the flow amount, the velocity, the turbulence. You can control the size of the domain, you can control how the water flows by using suitable effectors. Since you talked about several things here, it might be difficult for me to explain everything in this small comment box. But if you face any difficulties on anything in particular, we'll be more than glad to help you. I think the only real limitation is, you cannot achieve a very good simulation for very thin water, unless you use a very high domain resolution, which demands a very high-end PC. All other things you can easily control. Please let us know the specific issues, we'll surely guide you. Or you can also contact us with your blend file. We will look into it and resolve any specific problem you might be facing with your water simulation. Our contact details (Email ID) are given in the About section of this channel. Thank you!
@@5MinutesBlender well that's very kind for taking the time...I'll do some experimentation as you suggest...if I find a way to achieve a good result..I'll le you know how I got there ✌️😉
Sure! All the best for your venture!
best blender tutorial man 👍
Glad you found it useful 💖💖
i dont see mesh in my blender version
Hey, do you mean the mesh menu on the top? Or you mean the mesh is not visible? What kind of mesh is it? Please let me know some more details.
@@5MinutesBlender hi i solucionated the problem, only i search mesh in the display filter and mesh is visible. before is not visible i dont know why. My version of blender is 2.93.4. Sorry for my english. Thanks for asking
@@madarati8561 No problem. Good to know that it got solved!
There is no beziar circle 🥲
It should be in the menu Add>Curve>Circle (this circle is bezier circle). Which version of Blender are you using?
How did you make the water sway back and forth from the outlet like that? My water just comes out in a straight laminar stream.
Good question 👍 We did that by varying the initial velocity of the inflow object, slightly during the course of the simulation. The best way to do that is to add a noise modifier to the velocity parameter through the F-curve. As a result, the velocity will change randomly within a narrow range. Also you can change the direction of the flow slightly (using noise modifier). We did that as well. Collectively, the flow will look like a natural flow, instead of a plain laminar flow. I thought of adding this in the tutorial, but then realized that it would be too heavy for a foundation tutorial, and someone who is a beginner might get confused with so much information. So we planned to create a separate tutorial on this (how to create turbulent flow). We'll upload that soon. I am really glad that you noticed this small but very important factor 👍