Questions tagged [fluid-simulation]

Questions about the Fluid simulation systems in blender. Blender has two systems for simulating liquids, a SPH (Smoothed Particle Dynamics) system integrated with the particle system, and a Lattice Boltzmann method which can be used create a variety of simulations.

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18 views

Need help on moving multiple rendered images(frames) over a stationary plane

I created a dry fountain animation using fluid physics. The chosen objects were a cube(domain), cone(inflow) and a plane(as an obstacle). I baked them to create the fountain. Later I rendered the ...
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Fluid animation seems to disappear in some frames

I wanted to create an commercial ad for a juice brand and was testing out fluid simulations.. for now my simulations seems to work properly but as I render the animation the fluid seems to disappear ...
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How to make a text coming-up-out of water simulation?

I'm working on a project for school, and I want to make a simulation of some text rising up out of some water, with water dripping from it, sliding off of it, etc. I've already tried finding ...
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How to Make Custom Mesh Hollow/Empty? [duplicate]

I am new to blender and trying to create a custom mesh (specifically, a trough to hold a fluid, see image). I have deleted all the edges on the top of the mesh, yet neither fluids nor meshes can enter....
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Why does my Fluid simulation look like there is a floor where there isn't one?

I'm trying to set up a fluid simulation to flow down this guys arm but it keeps ending up looking like this. Is there something I need to apply to make it not do this? Additionally, I can't seem to ...
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22 views

Guided liquid Simulation

I am a short movie director and after effects vfx artist and I'm just beginning with the blender vfx game. In an upcoming short movie I want to realize a scene where the blood flowing out of a ...
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1answer
36 views

FlipFluids & Ocean modifier as displacement. Baked frames in 3D view show all movements but rendered animation not. Manual keyframe ok. Any solution?

I have created a FlipFluids simulation in Blender 2.81 ( 2019-11-25 21:45) and added an Ocean modifier in displacement mode to the fluid_surface. Then I have baked the complete sim from within ...
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24 views

How would I go about simulating a flooded city?

I want to visualize what it looked like if a big city was flooded due to sea level rise. I want it to look as realistic as it can, but I am still kind of a beginner. So how would I do this? Do I need ...
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16 views

Resuming a Fluid Simulation

I am currently using blender 2.8 and working with fluid sims. Does anyone know if baking was interrupted for some reason, that if there would be a way to resume from the point the baking was ...
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31 views

When using Flip Fluids and enable whitewater any Foam Spray or bubble appear as these icospheres

I have a problem when enabling the whitewater in the Flip Fluids addon. I get these big icospheres that I don't know how to fix. I've changed a lot of domain settings and it doesn't make any ...
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Fluid animation doesnt bake after 5-10 frames

I'm trying to do a water bottle flip animation and have 2 obstacles 1 fluid object and 1 domain in my sketch. But whenever i try to bake the aniimation, it bakes like 5-10 frames and after that domain ...
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32 views

Fluid not interacting with obstacle correctly Blender 2.8

Fluid acts as if the obstacle is in a different location and orientation. Any fixes?
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21 views

Fluid sim not working, no liquid is being made

I've been trying to make a sim of oil flowing out of a pipe onto some objects I made for a school project. The problem is that no matter what I try, the domain doesn't seem to want to show up while it'...
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blender 2.8 fluid fill stops at inflow object height

I create a box domain, small sphere inflow and text letter converted to mesh as an obstacle. I want to fill the letter with water. After baking (tried several resolutions 75-220), the fluid flows and ...
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6 views

Fluid Simulation

for the past 4 days i have been trying to insert key-frame for water splash on my inflow material, starting at 1 and stopping at 30 but after baking it doesn't stop at the exact point i want it to ...
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6 views

I'm having trouble with the fluid physics in 2.79

I am attempting to make a running tap for an interior model, but i am having troubles with the actual physics of the water. i have applied all of the fluid physics to the inflow, the obstacle (the ...
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12 views

Fluid Sim and Particles

So I have set up a particle emitter and a fluid sim, the emitter particles do not interact with the fluid even when I set the emitter as an obstacle, also tried setting the object as an obstacle but ...
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35 views

Fluid disappears and appears during simulation on moving obstacle

I am trying to make an animation with fluid and some moving character(obstacle). Fluid is shooting from a gun towards the character. Fluid is like honey. Fluid is landing on character's body. The ...
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Problem with fluid simulation, cannot generate fluids through pipe

I have set up the scene and assigned inflow, domain and obstacle(pipe volume as a shell) and liquid not generating after complete bake
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74 views

How can I create a realistic floor water fountain

I am trying to create a water fountain (as shown in the image). But for some reason after baking, all my inflows (UV sphere) are being interacted with each other ending up in a mess just like shown in ...
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78 views

How to melt an object into fluid and then morph into another object?

I am a beginner in Blender. I really want to accomplish a short 3D animation, I have built the models but I don't know how to deal with the animation. I watched many tutorials about fluid simulation ...
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21 views

Fluid simulator artifacts in Blender 2.8

So I'm trying to create a fluid simulation where water is falling down and hitting a rock. The only problem is that when the water hits the rock, the water, on one side, just bunches up in the most ...
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17 views

Fluid Simulation: Fluid is not coming from the inflow

I am trying to get fluid pouring from a sphere into this cup. However, when I bake the simulation the fluid also comes dripping down from places further along the x-axis from the sphere. What is ...
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25 views

Multiple fluid domains

So a few days ago I asked here how i could simulate water falling from tectonic plates and the answer given worked perfectly. But now I am having some more problems, I wanted to make 2 fluid ...
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34 views

Blender Fluid Simmulation: How to turn on and off the fluid appearing from inflow?

I am working on a tea set animation where the teapot pours tea in a teacup. Now the issue is the fluid starts emitting from the inflow right from the first frame. I checked for an earlier post ...
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23 views

How could I make fluid simulation like one in Myosis?

I am new to blender, expecially fluid simulation. Recently I watched the short animation and I freakly love the fluid simulation: link:https://www.youtube.com/watch?v=WImOE0Pwk3M However, I find it ...
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In a fluid simulation, how can I make an “inflow” fluid type pour into a “fluid” fluid type in one simulation?

For example, how could I have a water pump pour water (inflow) into an existing pool of water (fluid)?
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67 views

Mantaflow not going hires

I'm using the blender 2.81 mantaflow beta build and, I've set up a smoke scene and, as I understand it, the "Noise" setting is the equivalent of the "High Resolution" setting before so, when I check ...
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67 views

Mantaflow - Particles

I use mantaflow to simulate fluid, then this the results. 100 frames, default settings baked data, ok baked mesh, ok baked particles, 0 particles generated question : why no particles? what and how ...
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Physics tab: no fluid options 2.8

I selected the domain object of my fluid, I already baked once and now want to make changes and bake again but no options are there. I already tried restoring the cashe_fluid data, the baked mesh ...
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328 views

How do I make more complex LEGO simulations in Blender?

In the lego movie, the fire, water, and smoke is made of lego bricks. It's not just a simple method of having one type of brick, several different bricks and brick slopes are used to get a really ...
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uhh why does my fluid acting up like this? it was working before, the fluid came from the circle but now it looks like this, check the photo

I was just following a fluid tutorial and i tried it with a simple donut, it was perfectly fine at first but i feel like the result is very bad so i took a nother try. When i try to bake the fluid ...
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4 views

Fluid Sim won't bake with control object

I have a very basic scene that bakes. However, as soon as I add in a control object it won't bake? Is there anything special you have to do for a control object to make it work?
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78 views

Is Inflow Animation Broken in 2.80?

So yesterday I spent all day trying to figure out everything I could about the fluid simulation, as I wanted to help answer a post. In one of my test, I came across an issue. So I made a new, bare ...
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1answer
29 views

Object floating on heavy sea - how to make shocking rotation less sensitive?

So I have an object floating on a heavy sea. How to make it a bit less sensitive to sudden rotation and location changes, and make it look more fluid instead? I used the technique such as described ...
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1answer
94 views

Lego Water with Dupliverts doesn't work!

I made a fluid object, I made a brick object. I set the fluid object to dupliverts in the object panel and added a remesh modifier set to blocks. I selected the brick, held shift and selected the ...
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70 views

Nothing is coming from fluid inflow in Blender 2.8

I cannot get my fluids simulation to work. I am having the same problem in both CentOS Linux and Windows 10. I have tried decreasing the size of the domain and increase the size of the inflow, as well ...
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196 views

In Blender 2.80, when i try to bake a fluid simulation using flip fluids, it gives me the error 'Cannot find fluid engine library: libblpyfluid.dll'

When I bake a fluid simulation in FLIP Fluids(which a built from source using Visual Studio 16 2019),it shows the error Cannot find fluid engine library: libblpyfluid.dll. I really want to use ...
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26 views

Blender Render Engine Bug

Im trying to render a scene but when i try to render it, it shows me a previous render i did with eevee and the aspect ratio is also different, i tried rendering using both eevee and cycles but it ...
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35 views

Fluid failing to enter side channels in Blender 2.80 fluid simulation

I have a fluid sim under Blender 2.80 which requires liquid to flow into a main structure and fill side channels off (imagine underground passages flooding or a storm drain backing up). Past a ...
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20 views

Fluid simulation and Particles final render are totally different

I just created a wave simulation using fluid physics. I also added some fluid particles on it. It looks like this in the live render with Eevee: but when I render it looks like this:
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45 views

What's wrong with my fluid simulation…?

I've been following this Blender Guru tutorial - https://www.blenderguru.com/tutorials/introduction-to-the-fluid-simulator - however, mine doesn't appear to be working properly. I'm not sure if there ...
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26 views

Submerged inflow doesn't add to fluid volume

So if you position your inflow inside the fluid, or where it's going to be submerged after a while, it stops producing fluid volume. Funnily enough, I've encountered the problem with both Blender ...
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30 views

Basic fluid - inflow too small to generate fluid or generated fluid too thick

I'm setting up a fluid simulation, and it seems like inflow is too small to generate any fluid, or generated fluid too thick(too much). This is the setting of the simulation: Inflow Volume ...
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30 views

How To make fluid human model and slowly dissapear?

i've been wondering how to make the scene like image shown At the first image, the character is fill with fluid, then the character melt down. Can this scene be done in fluid / flip fluid blender ? ...
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46 views

how to create fluid simulation in glass?

how to create fluid simulation in glass?
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41 views

How to properly set domain for fluid simulation?

I am trying to create a domain for fluid simulation in blender. But as soon as I apply the domain physics on the (cube) object, it transforms into some fluid like mesh. If I press play, it seems as if ...
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2answers
98 views

Fluid simulation - filling up a letter

New to fluid simulation, and I'm having trouble setting this up: I have a text, a letter "O", that I want to fill up with water - going for a spurt of water to come jetting in from the bottom and ...
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51 views

Why is my 2.8 water simulation 'tearing' into small pieces?

Why does my water simulation look so terrible? My whole mesh is tearing into small pieces. Are my settings wrong?
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12 views

How do I stop fluid from “magnetizing” to an obstacle

I'm testing out different fluid properties and whenever the fluid comes in contact with the obstacle it magnetizes to it. It starts out like this when it's not in contact But when it's in contact ...