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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water separates into small droplets

I'm doing a project where a glass is tipped over and the pan pours out of it. I want to make it as similar as possible, but at a certain point the water just starts to separate into small drops and it ...
Blend_Sueta's user avatar
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19 views

Particle objects interact with fluid simulation

I am new in blender , I wanna know if possible to create particle objects or objects that will look like a silt and will interact with water simulation?
Cj Pascual's user avatar
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1 answer
25 views

How to control fluid flow speed / velocity

I'm new to Blender, and I'm having trouble regulating the water's speed from the sphere while using water simulation. I want the water to start flowing at 35 litres per minute and stop after 25 ...
Cj Pascual's user avatar
1 vote
1 answer
44 views

How to make the liquid to flow in a circle forming a swirling bubble

I tried to make it as natural as the gif, but I still feel like I'm not good enough. The liquid I expressed is not three-dimensional, so please help me
smileman's user avatar
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What settings should I use to replicate this "lava" effect using flip fluids?

https://www.youtube.com/shorts/p3OhspLdgdU I want to replicate the emission strength fading according to speed like in the video. Additionally, I am trying to figure out how to go about having the ...
yanke555's user avatar
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Liquid simulation not working 3.6

I have a scene with a glass of liquid with ice falling inside the glass. The liquid inside the glass has liquid physics, but doesn't react to the ice cubes falling into the glass. The glass and ice ...
user29279's user avatar
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10 views

Model clouds tablecloth with animation

I wanted to create animated clouds to position over a mountain footage. I want to achieve this effect: https://www.youtube.com/watch?v=zOpkXBACDU4&t=9s How can I do it? Thank you
Haru Shiba's user avatar
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1 answer
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Smoke Won’t Stop Emitting When “Use Flow” Is Unchecked

I don’t know what information to give. I set a key frame with “Use Flow” checked, then I add a key frame on the next frame, with “Use Flow” unchecked. The properties tab show that it is unchecked, and ...
Koast's user avatar
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how do i scale inflow stream

i am in the middles of working on my project, in which call for the person to be in the shower, as in bathroon shower, and in working to get the water strean to look like water coing out of a sjower ...
Kiss Me Comix's user avatar
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23 views

How to apply native force fields to Flip fluid simulations

I'm facing an issue with applying force fields to my Flip Fluid simulation. I'm unsure if it's not possible or if I'm overlooking a step. Here's my process: Create a domain. Set up an inflow. Add a ...
Default_dx's user avatar
2 votes
1 answer
30 views

Baking numerous simulations using FLIP FLUIDS

I'm encountering a challenge with my current project involving fluid simulations using Flip Fluids. I need to run multiple simulations within the same blend file for different shots, each at distinct ...
Default_dx's user avatar
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How to free a fluid bake on the commandline?

I want to rerun the fluid bake. I'm using the code at https://blender.stackexchange.com/a/311453/158745 to bake the fluid, which seems to work. I try a variation on this code, to free the fluid: ...
Hugh Perkins's user avatar
1 vote
1 answer
23 views

Why do fluids clip through effector after enlarging domain

Summary I created a basic rocket thruster via two planar inflows (smoke and flame) housed inside of a non-planar cylinder/cone effector (set to collision). The animation is fine with a smaller ...
Celery's user avatar
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2 votes
1 answer
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Fluid inflow simulation won't stop overflowing even after using keyframes

So I was watching this YouTube tutorial that keeps the fluid animation going while stopping the flow from overflowing at a certain point, using keyframes. Following exactly what they did, as you can ...
sally's user avatar
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1 answer
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how do i remove the background in a transparent material

i am working on a water simulation i am using evee, and not cycles as the scene doesn't require that much refinement, i have trhe transparecny figued out i think, how do i get rid of theforest back ...
Kiss Me Comix's user avatar
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14 views

How to create a turbulent fluid particle simulation that is reactive to regid body simulations?

Reference Video I am not able to understand what kinda approach would be more accurate to recreate the reference video above [particle system or fluid simulation]. From what i understand a particle ...
Tejas's user avatar
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1 answer
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Fluid stream not really straight with spherical artifacts when increasing velocity

So I'm modelling a water fountain and currently I working on adding some water in the form of a Blender Fluid Simulation. Everything looks more or less as expected except the water stream coming from ...
Asder Knaster's user avatar
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21 views

My fluid inflow doesn't stop even after animating it keyframes (useflow) to stop

I have been learning blender for 2 months now, I get stock at this point where I am finding it very difficult to animate a running fluid from the flow into the effector Pls can someone explain how to ...
Ik Isaac's user avatar
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25 views

liquid simulation that sticks to a surface effect

I've been trying to simulate a golden metallic liquid that originates from a golden mask. I have almost got the simulation ready but I cant seem to find any setting that makes the liquid stick to the ...
Caynite 's user avatar
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How to make the bubbles that form in the top of the liquid in the inner edge of the loquid container? [duplicate]

How to make this for a liquid object that forms bubbles in top of the liquid? I'm stuck in a project just for this
Gaurav Kumar Das's user avatar
0 votes
1 answer
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Particle System Halos vs Objects

https://drive.google.com/drive/folders/1fVd1osF-ZCLDb2eGdjVZdMulcxZhDndr?usp=sharing Does anyone know why this is happening and if there is a solution? When I start the particle system and the default ...
ahkai's user avatar
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1 answer
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Liquid gets less/vanishes if effector is rotated in animation

I am experimenting with liquids in an animation, but I don't get it to work properly. I have an simple container, liquid flows in. Then it rotates so the collected liquid should be able to flow of ...
Heiko Schäfer's user avatar
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0 answers
40 views

How to add vector blur for particles produced by Mantaflow?

I'll briefly explain my setup here: I am trying to render an animation including sand movement produced by a falling object. I have made the simulation using mantaflow as a source for the particle ...
Mehdi Belhous's user avatar
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0 answers
61 views

Fluid Simulation Disappearing in Render

Basically this issue here where sphere sometimes just disappears. Although it looks like its reappearing after a few frames thats just me restarting the rendering with overwrite off. Tried once and ...
RipeRed's user avatar
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39 views

Post processing SPH simulation

I’m very new to blender. I just ran a (sph) fluid simulation and want to post-process it in blender to make it look like this: Does anyone have any information which would help me do this? I used ...
Justin H's user avatar
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1 answer
65 views

What are the technics to create flowing liquid static geometry?

I need to create something like this – chunky & very pronounced liquidy abstract geometry based on a restricted surface. Simply put, I want to create the roof for the cartoon house looking exactly ...
Marfa Razmakhova's user avatar
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0 answers
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Why does changing the Resolution Divisions parameter in Mantaflow change the scale of the simulation?

My understanding of Resolution Divisions is that it should affect the accuracy/voxel size of the simulation. Therefore a typical workflow would be to start with a lower number of divisions to get the ...
John's user avatar
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21 views

Animating 2 fluids with different viscosities

Does anyone know how to change the viscosity of a fluids simulation such as the first fluid that flows has water properties, then the fluid stops and the new fluid comes out and it has oil properties ...
aleksej stevanovic's user avatar
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0 answers
24 views

Fluid simulation sometimes works and sometimes doesnt

I have experiencing some weird issues with the fluid simulation in blender. The fluid sim sometimes works and sometimes doesn't, even when I do the exact same steps. When I open a new project I am ...
Gus's user avatar
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0 answers
16 views

Manta flow setting help needed

Help, my water sim is not working, i have the domain, flow and effector, but when i run the sim, the cup is not filling up fully, and is stacking up in the center and spilling up a column( see screen ...
Kiss Me Comix's user avatar
1 vote
1 answer
32 views

Fluid simulation : domain appears opaque when render

I have a simple fluid animation and it works well as far as I don't try to render it. In render mode, or if I try to render the animation, the domain becomes opaque. In other modes, the scene is ...
Zelig63's user avatar
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Attempts to change water flow result in no flow at all

I am trying to add a small flow of water into my pool. After following dozens of tutorials I eventually got some water coming out, but much too 'fat'. I thought I just had to make a few changes and I ...
Tony's user avatar
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0 answers
15 views

Fluid suddenly moves one direction + collision problem

I'm using Blender's Mantaflow fluid simulation. The fluid suddenly seems to move in one direction. I din't give any velocity to the fluid source My only guess is that the collider for the object ...
Howler's user avatar
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1 vote
1 answer
33 views

Why is the water not colliding with an obstacle?

The water goes through the obstacle, instead of bouncing or stopping right there. Would you know how to fix this? I tried to change the "fractional" part but there is no difference. Here is ...
oath__'s user avatar
  • 13
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0 answers
18 views

How to bake a fluid animation with Blender 4? [duplicate]

how do you bake a fluid animation? I have the "domain" object, the fluid and the effector, I changed the number of frames, but with the last version of blender, there is no "bake" ...
oath__'s user avatar
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0 answers
26 views

Massive Water Effect

Is it possible to create an effect similar to the following link in Blender? Water splash simulation using realflow The default fluid simulator works well for small scale effects but I am struggling ...
fvlasie's user avatar
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0 answers
23 views

Fluid Sim looks rough even with a high resolution division

I am simulation a water inside of a glass. the issue is the sides of the fluid where it touches the glass object (the collision object) the fluid looks rought ; I tried applying subdivision on both ...
christian thea's user avatar
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0 answers
61 views

Fluid Simulation Low Quality When Dropping on Object

The gold fluid when drops on the object creates meshes (or weird bumps) at point of contact. Even when I bump up the resolution to 700 the edges of the fluid are still not completely smooth. Smoothing ...
Fatima Kayani's user avatar
0 votes
1 answer
21 views

Fluid simulation Question about the min/max of the velocity

With the fluid sism, I want to bake a simulation where i swap them out with particles. The simulation however does not have a lot of intense and high velocity movement. This causes my particle shader, ...
Tom Hogenberg's user avatar
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0 answers
27 views

Simulate rigid body hitting thick liquid. (How to slow an individual rigid body?)

I’m trying to drop rigid bodies into a vat of slime. The rigid body needs to stop hard the moment it hits the surface of the slime, then slowly sink in. I’ve tried using translation damping at the ...
Black Fox's user avatar
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24 views

Is it possible to set a Sphere as a Fluid Simulation Domain?

This what happens when I try it... I'm using Blender v3.6.2
Isaac G. Obi's user avatar
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0 answers
44 views

Fluid simulation Artifacts

I have created a waterfall scene of height 95feet (considering real life measurements) using flip fluids addon. The material given to the fluid surface is complete transparent. I have baked the ...
SamSamuel's user avatar
0 votes
1 answer
151 views

Flip Fluid add on : Fluid sim freeze while rendering

I baked my fluid simulation, and rendered. But every 15~20 frames the sim froze. So I closed the Blender file, reload it again and render from the keyframe which was frozen. I think it's the directory(...
HHH's user avatar
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0 answers
28 views

Glass BSDF shader rendering problem

I'm trying to follow a tutorial on fluid simulation. Everything works fine until the rendering. As shown, the viewport render looks well but when trying to render image (F12) the torus roughness ...
Mohamed Obeid's user avatar
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0 answers
46 views

Why Particles Look Noise in Fluid Simulation

Why do particles move like glitter every frame? I hope it doesn't sparkle like noise, but it's still rolling. It's not a material problem, it's a fluid area problem. Resizing a domain or resizing a ...
beepbu's user avatar
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1 vote
2 answers
157 views

How to remove mesh from fluid

I want it to be seen completely as a particle, but there's even a white mesh. How to get rid of that white wave from the setup?
beepbu's user avatar
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1 vote
2 answers
97 views

How do I get a planar fluid surface in Flip Fluids?

I saw a video of someone making a U-boat surfacing with Flip Fluids, and I noticed the fluid surface is planar and it doesn’t just fall down onto the domains bottom side, and it has proper splashes. ...
Cabbage's user avatar
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0 answers
70 views

Water simulation - How to make water spill (difference between 2.8 version and 3.6 new update)

How can I recreate this fluid simulation from 2.8 version to current 3.6 version? I do not see any 'obstacles' in fluid simulation. I was following this tutorial "making water spill from backet ...
J13's user avatar
  • 55
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0 answers
24 views

How to rectify "Use flow" keyframe when its not working?

I wanted to stop the fluid flow after certain key-frame but even though i inserted a key frame in "Use flow" check box by checking and unchecking it , the flow keeps on producing .Help me to ...
Yukthy Parthy's user avatar
0 votes
0 answers
18 views

Using Flip Fluids for a shore on a beach. Doesn't behave like ocean water

I have assigned the appropriate materials and enabled Whitewater simulation. The water still looks and behaves like oil. I know I am doing something wrong. Can someone please explain?
Brentyn MacMillan's user avatar

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