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

Is it possible to shade/render a fluid simulation with whitewater imported from Houdini into Blender?

I’ve done a lot of research on the process of exporting/importing alembic files of fluid simulations to/from Houdini and Blender and have read about the difficulties in importing custom attributes ...
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21 views

Find “Smoke” settings under Domain tab [duplicate]

I am following some basic tutorials of smoke simulations. And I always can't find the settings tab "smoke" under the smoke domain settings. I jumped through some tutorials to see if I am ...
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12 views

How to remove fluid source mid animation

I'm very new to blender, following this tutorial I made an identical animation but I'd like to have a few frames where no more fluid is added but all that had already been poured will keep being ...
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10 views

Copy fluid settings from one object to another?

I'm making a smoke simulation and have edited the settings of the smoke "flow" mesh, but now I would like to replace this mesh for a different one, but without losing the flow settings. Is ...
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1answer
36 views

Why is my fire simulation blocky even with 5000 resolution divisions? [closed]

For some reason, my fire simulation is really low resolution even if i set it to a crazy number of divisions. why is this happening? here it is with 5000 resolution divisions here it is rendered out
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1answer
120 views

How to get this splash effect in the fluid simulation?

I'm Tying to make this animation in which a cookie flies and splashes into a coffee cup, but something's not right. The cookie makes the fall in one and a half secod (If in 30fps) but even at 256 ...
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2answers
33 views

Fluid simulation fluid either pass through effector or it floating above the effector

I used a plane as an effector, if I do not check the "is_planer" the liquid will pass through the plane, if I check that option, the fluid just floating above the plane, I can not manage to ...
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23 views

water doesn't flow inside closed sphere

I checked many tutorials and guides on how domain and the liquid engine works. I also troubleshooted all the common problems why water does not flow and after hours of researching I found a fix myself ...
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1answer
7 views

Fluid Sim Liquid Domain is bigger then the area I dedicated to it

I´m currently doing a little fluid sim and the area of my domain is bigger then the object itself. Anyone know how to fix it?
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How to get fluid to behave like droplets on a hydrophobic surface

I am trying to create an animation of the scene shown in the picture below. I want all the little fluid droplets to be attracted to the big one in the middle and be absorbed by it. I have tried using ...
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1answer
39 views

Fluid Simulation Not Working, updated software and have done hours of research [closed]

Running 2.92 Blender user since 2019. I'm trying to fill a glass with liquid. I can't get the fluid simulator to work consistently. I've been fiddling around with it and had limited successes, but can'...
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“Quick Fluid” is reflecting an old (not current) HDRI

The environment texture with a tree (shown in reflection) was not the world texture set when I created the "Quick Fluid" it was the stars. I can't work out, how this old texture is being ...
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13 views

How do I make fluids “fade away” or shrink with fluid simulations?

Newbie to fluid simulations here. I'm trying to make a splatter effect with a fluid, and I want it to look similar to RE7's blood effects, where they are baked into 3D. However, I can't seem to make ...
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42 views

liquid simulation with Viscosity getting weird (like explosion)

I have a question about fluid setting. (blender 2.92) I set 3 fluid output with initial speed 3m/s in Y/Z direction in a Domain. (All three inflow are the same) Resolution Divisions is set at 32. I ...
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1answer
26 views

Water flow at the normal to a face

I want to make liquid flow out of a face of an object with the water flowing at the normal to the face. I've included an image demonstrating how I want this to work. I'm pretty inexperienced so if you ...
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1answer
27 views

My river water won't flow at steady rate, any solution? (found it)

(edit : i've found what worked for me, check below if ure interested) Im trying to make a steady river flow. It's actually just water flowing "horizontally" from the start (unlike my gif), ...
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1answer
21 views

Fluid simulation only affects certain parts of a mesh?

I'm pretty new to Blender, so forgive me: I'm currently following this tutorial but for a different mesh, not text. https://www.youtube.com/watch?v=jcPV3AkMRLI&t=134s The problem I'm facing is ...
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2answers
75 views

How to fill up every part of a geometry with a fluid?

While fiddling around getting the letter F filled up by a fluid for an animation, I don't get the fluid to reach the horizontal parts of the F. So far I´ve tried: Domain resolutions: 32-128 Effector ...
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1answer
29 views

fire simulation start frame

I'm trying to do a fire simulation that should look like a meteor. I have applied quick smoke, then smoke and fire on the physics tab but the fire appears right after 100 frames, too late for what I ...
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8 views

Blender Resume baking simulation from a specific frame? [duplicate]

does anyone know if it is possible to resume a water simulation from a specific frame? I already baked the water falling and I forget to add an effector at the bottom, and I wanna rebake but not the ...
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1answer
28 views

How to get a plane to emit an object in a fluid simulation?

I have a question about making a plane emit an object as a particle. So I am making this scene where balloons are going to fly through a subway corridor and I am trying to make the particles come out ...
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18 views

Liquid disappearing in Mantaflow when container is animated

I am using Blender 2.92 os OS 11 I have done okay with Mantaflow and it works once I understand what I believe to be quirks... I am doing my first animation where I am moving the container/collision ...
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2answers
53 views

Fluid won't go through a hollow-moving-effector, they just move aside

Obligatory kinda new to blender, have just been following some little tutorials here and there. Background about my project : I'm trying to make an archimedes screw. Basically it is made of a long ...
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1answer
28 views

'Blend' in planes to create ocean/lake and also with Flip Fluids surface

Hi there, normally I am able to find all the answers on this forum and it got me very far of what I want to realise. However, I wasnt able to find an answer to the following problem. I created ...
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1answer
19 views

Weird stuffs in smoke + fire sim

So, i've been messing around with this project for a solid total of 10+ hours. And i still can't figure out why the fire is so weird. It has this bobbly blocky thing even in "decent" ...
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1answer
17 views

Fluid Domain — Resolution Divisions field disabled (grayed) after freeing bake

I have a Fluid Domain where I just freed the Bake in order to change the Resolution Divisions field, yet it remains disabled (grayed). Any thoughts on how to "jiggle" this to get RD enabled?...
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1answer
53 views

Fluid simulation not continuous flow

I've a fluid simulation in which the emission object, an icosphere, is moving upwards quite fast. The problem is that the fluid that is emited form balls instead of a continuous flow. I tried to ...
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1answer
107 views

Having an issue with mantaflow fluid simulation with flow object inside of another object

So I am working on a model currently of a banana being cut open that I am trying to make have blood come out when it's cut. I have animated the object being cut by swapping out the whole object for ...
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1answer
38 views

Where are all the options?

I am trying to make liquid and I need to go to inflow on fluid but it doesn't show. I only have four options to choose from and I should have more. I have searched everywhere and can't find the answer ...
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28 views

Fluid simulation with a visible image inside the liquid

I would like to be able to see an 'image on a plane' inside a liquid with viscosity in (fluid simulation). I have seen a few tutorial without much chance. Screen space and reflexion is turned on in ...
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Fire Created in Blender 2.92 looks Mushy and Blurry

I am using Blender 2.92 on OS 11. Playing with fire.... The flames are there, but kind of mushy. This is EEVEE, but Cycles looks the same. I am including screen shot of shader for domain as well as ...
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746 views

How to create a thinner fluid

In Blender 2.92, I'm trying to simulate a thin liquid, like a syrup, running down a soft ice cream cone, like the picture attached (ice cream in glass jar) The closest I got is on the second picture. ...
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1answer
364 views

Blender 2.92.0 crashing a lot during fluid simulation baking [closed]

Any fix for this? It appears to happen more often when "adaptive domain" is enabled, but not exclusively. Turning on 'noise' also appears to make it more likely of crashing. It's not RAM, I ...
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35 views

Fluid geometry not flowing when baked inside of domain

My goal was to have the head turn into fluid and fall down onto the floor of the domain. I have done a little with fluid sims in the past. I'll try to describe everything I did, but I think ...
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1answer
15 views

No fluid generated when baking data + baking mesh (2.90.1)

trying to create an effect of blood dripping that will be late composited into a video. I've tried changing the scale, resolution, particle min/max, but no matter what i do, baking the data+mesh on ...
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23 views

Resume fluid simulation from correct frame after Blender crash

I am currently running a fluid simulation that aims to simulate 360 frames. I have the file saved at the 150th frame, and decided to leave the fluid simulation running. When I come back Blender ...
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1answer
139 views

Blender 2.92 Fluid / Gas simulation not working

I'm using Blender 2.92. Now I'm trying to simulate some fluids and gases, but it seems that I'm not ready for these. I've succeeded setting a simple fluid scene (just a cube domain and a cube inflow), ...
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1answer
59 views

First fluid liquid animation- feedback! [closed]

I have made my first animation using fluids! It is a splash of water hitting a rotating caracter. The scene is quite simple, but there are issues I cannot fix. For instance the shape of the water ...
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2answers
68 views

Create Liquid shooting from bottle in Blender 2.91

I followed several tutorials, but none seem to generate any liquid. I am using 2.91.2 on OS 11. I have a cube set up as a liquid domain and a disk set as fluid Inflow. (see below). The problem is ...
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6 views

Fluid simulation gone

Have a blender file where I've added a quick liquid. Played animation [hit space], works. Resized one object, no animation anymore. Undoing not helping. Adding a cube, adding quick fluid, no animation....
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28 views

How to fix low framerate while running animation in Blender 2.9?

How can I increase the FPS of my simulation after baking it? Details: I was following along with Olav3D's video on water animation in Blender 2.9 (great person to learn stuff from) and after baking I ...
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43 views

Fluid bake explodes and vanishes

I bake a fluid, but after a specific frame, the fluid explodes and disappears. It's completely normal at first, but after the same frame every time, the fluid loses volume and explodes into just a few ...
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25 views

How to make raindrops fall onto an object?

I have a solid effector object and to put it simply I just want it to get rained on. Ideally I'd like to have a Mantaflow emitter above the object simulate raindrops falling onto it. —— I've been ...
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15 views

Very less particles are spawning in fluid simulation

I was following default cube's honey tutorial https://youtu.be/viiOpt0JhfU?t=154 and ran into some problems. The number of particles that are spawning are very less than they should be. MY RESULT: ...
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1answer
34 views

Fire simulation won`t be randered

Tried to render fire simulation in Cycles, results are above. I added principled volume node to domain cube. Fire shows up in viewpoint, however does not in rendered image. In viewpoint, fire is shown ...
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9 views

Let fluid simulation hold final frame [duplicate]

I have a mantaflow liquid simulation in the 2.92 version of Blender. This simulation starts at the beginning of the animation but stops before the animation ends. When the animation plays past the ...
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0answers
33 views

Fluid Sim not working when using a small flow object

So i'm trying to create a fluid sim, using a UV sphere as the flow. I have added a cube as a domain, following CG Geek's tutorial. However, when I scale the flow object down to a small size, it does ...
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54 views

Mantaflow Liquid bake crash EXCEPTION_ACCESS_VIOLATION

So I am doing a scene with a fluid sim, and basically a glass with water in it gets broken. So it's split up into a hundred rigid bodies and I bake the sim on top of that with the rigid body sim ...
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1answer
40 views
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15 views

Fluid doesn't work, particles simply won't appear

I'm following this tutorial precisely step by step (I'm using blender 2.92) https://www.youtube.com/watch?v=e3mhJXuveFo&t=91s When it comes to 1:26, the particles just dont show up. What could be ...

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