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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 Simulation not showing in render

Water simulation shows up in the 3D view port, but not in the rendered image. Heres the .blend file (I uploaded it to google drive because it was too big for other methods): https://drive.google.com/...
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18 views

Would it be possible to create a bleeding wall/object effect in blender?

I'd like to create a fluid animation of blood/dye running down a wall something like the effect they have on the music video 'Dean - Instagram' however It seems like the effect in the video is ...
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How can I make drops of fluid hang from a surface?

The images below display the kind of effect that I'm looking for. A combination of surface tension and intermolecular forces make drops of water hang on things (though they may occasionally fall off ...
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Can fluid or smoke be simulated using particles instead of a fluid or smoke sim? And if so, how?

I was watching Disney's Practical Guide to Snow Simulation and towards the end of the video there was a section on using an MPM for more than just snow. This got me thinking, can particles be used in ...
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1answer
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Fluid simulation not working after parenting to animated object

I know this is a common question, but I already tried Apply Transform and checking properties of the fluid simulation. I got fluid working and rendering fine and the final step was animating the ...
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17 views

Why is my fluid sim is phasing through the obstacle?

I was trying to do an experiment so that my fluid would stick to a surface in little droplets (i.e. like water when it touches most surfaces because of intermolecular forces and surface tension). ...
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1answer
118 views
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How can I create a soft, fluid filled pod that can rupture?

I was watching a trailer for an animated short film and there was a moment when a green pod split open and a person fell out, along with a bunch of fluid. I've set up the link so it begins on the ...
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19 views

Fluid doesn't fall

I'm quite new in blender but this is really strange, please help! I want to simulate water flowing between letters and I have two issues: the water doesn't fall down but stays at distance from the ...
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14 views

Fluid Simulation stops for one frame

My fluid simulation turns into the domain (a cube) for one frame, and then the fluid simulation carries on like normal. This happens twice throughout my simulation. I have no idea why this is but it ...
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Fluid Simulation Obstacle clarification

This Blender Manual link https://docs.blender.org/manual/en/latest/physics/fluid/types/obstacle.html states Impact Factor Amount of fluid volume correction for gain/loss from impacting with ...
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1answer
11 views

Fluid increase speed over time

I have my fluid physics setup like so How can I increase the "speed" over the course of the animation? I'm trying to mimic a garden hose being turned on.
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30 views

What fluid obstacle movements cause the majority of fluid to disappear?

This is a narrow question, so your narrow answer is appreciated. At this point I do not want to include a picture. A fluid simulation was working well enough in timespan A. In timespan B an ...
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Problem rendering Fluid Simulation

I tried Blender for the first time yesterday. I wanted to mess with the fluid simulations and it worked. I used a tutorial and everything turned out fine except when I wanted to render the result. ...
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Why does the fluid simulation break and not even bake the full time line?

Im trying to follow CGGeeks wave tutorial, but for some reason my simulation begins to break (as shown in the picture). Other times it doesnt even bake all the frames and stops around 100. Can anyone ...
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21 views

Why this fluid simulation wont bake properly?

Why this is happening can someone explain.please? I even applied scale to domain and inflow but still this happens.
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6 views

Fluid Simulation Domain appears to be reading from two different directories. Is there a remedy?

Fluid simulation domain object called domain for short. We are reading the cache files .. Not Baking for this discussion. Expectation. When the cache files being read are exhausted then I expect to ...
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Fluid Simulation Outflow behaves unexpectedly. What are possible remedies?

A fluid simulation has one or more fluid outflows. One of the fluid outflows does change/delete the fluid, yet only at the boundaries/surface as depicted above. The expectation is any fluid should ...
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1answer
31 views

Fluid simulation wont happen in a small pipe?

Fluid simulation won't happen in my model pipe. I Got a project from my client in which fuel must pass through a pipe. so I tried to do the simulation but the simulation won't happen. I tried scaling ...
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24 views

Flip Fluid simulation throwing a specific error with no console output

I am attempting to bake a fluid simulation using the Flip Fluids addon. When I attempt to bake the simulation, I get the following error: I have encountered this error previously, when resizing the ...
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1answer
31 views

About “Enabled(Object contributes to the fluid simulation)”

I'm sorry, my English is not good. The following sentences are translated by "Google translate". Also, I am Blender beginner. My question is about Fluid-Control. It seems that Control(gravitational ...
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18 views

Can fluid simulations have dynamic resolution or topology?

I have a low poly animation of someone getting baptized in water, so I used a low res water simulation so my work could be a little bit easier. The results were ok, but not what I really wanted. The ...
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1answer
45 views

Object showing only in render and not in viewport even though visibility settings are correct

The fluid sim obstacle is visible at the top of the monitor. Before this render I turned made sure that render visibility was set to off. Viewport view, the obstacle is invisible whilst the ...
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21 views

How do I simulate fluid in the BGE?

I am trying to make a game where a player can drive a car. I want to have a lake that the car can drive into and splash. I am not very good with the game engine especially at coding. If I can't ...
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1answer
51 views

Fluid simulation not baking with fluid object

I've been having a little bit of trouble getting the fluid simulator to cooperate with me. I have a relatively simple scene setup with plain rectangular objects that are scaled to realistic sizes. ...
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1answer
92 views

How to fix this physics problem?

Hello everyone, How to fix this physics problem, the objects pass trough to wall. I increased the Steps per second and Solver iterations in scene settings > Rigid body world. Also, I set the shape to ...
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0answers
18 views

How to calculate final volume or real time flow rate?

I am quite new on blender, and I wonder if fluid simulation tool based on SPH is able to give the total volume or dynamic flow rate that is produced or exiting the system boundaries. I am actually an ...
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35 views

Why are droplets in the 2.8 sim so big?

I’m working on a project for a collaboration and they’ve asked me to have a beach scene where a woman washes on shore. I adjusted most of the settings myself but used CG Cookie’s waves tutorial for ...
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1answer
83 views

Best Way to animate lake

I have created a water simulation and set a cube inside the domain to fluid. I was wondering what the best way to make a big lake of water (with realistic ripples) would be. No tutorials seem to go ...
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64 views

How to generate a realistic fluid sim splash?

I'm trying to have an object splash into a fluid, but I've been getting pretty strange results out of my fluid sim. The most frustrating is the effect in the gif below, where the "splash" awkwardly ...
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49 views

Box filled with candies - particles overlap [duplicate]

I created a box and I want to fill with particles objects. The problems is that the particles-objects are overlapping. How can I create dynamic particles, where each one interact with the each other, ...
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1answer
35 views

A fluid artifacts, strange long splashes. What am I doing wrong?

I've checked all the normals, meshes, tried to redraw all, scale down the fluids, tried clean blender installation, another computer with a fresh 2.76 blender. The results are similar. So I guess ...
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1answer
76 views

How to simulate in blender, smoke coming out from a bottle or a flask?

I want to create in blender an animation. It is possible to simulate the smoke that coming out from a bottle? I attached here my blend file. https://drive.google.com/open?id=1rL1v4v-...
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13 views

Boids particles are being erratic/freaking out?

Ok, Im trying to create a flock like this tutorial: https://www.youtube.com/watch?v=nJT9zRi56w0 I have everything basically the same other than size, which shouldn't effect anything. Where the ...
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ReBake a fluid Simulation?

Following problem: I have a fluid animation which works after being baked. Now I change some detail, the inflow velocity or the inflow type for example, but when I hit the bake button again the ...
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1answer
57 views

How can make objects invisible in only certain areas?

I started to study blender recently, and I was just making some experiments with fluid simulation but I was stuck with this problem.
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1answer
43 views

Converting Particles Into Fluid

I wanted to ask if there is a way to convert a particle system to a fluid? Is it possible?
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1answer
48 views

Why is fluid not entering this hollow object?

Pouring water into a cup. The cup does not have a lid, but the following situation is shown. How can I solve this problem? Here is the .blend file: https://drive.google.com/open?id=...
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2answers
138 views

Blender as a fluid dynamics simulator

I want to ask if I can use Blender as a fluid dynamics simulator in a physics school investigation to determine for example the space travelled by a particle moving through a fluid, varying the ...
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1answer
166 views

How to Create Connecting & Disconnecting Fluid / Bubbles?

I'd like to create this simulation in Blender, with different connecting and disconnecting bubbles splashing with fluid sims. Is it even possible? Do you please know what option in Blender creates ...
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Why are my particles behaving weirdly? Resting in odd shape, ignoring passive rigidbody mesh

I try do do an animation where a rock gets grinded into powder. for that purpose i created a particle system that spawns the powder over time. Because i want to rotate the bow later and pour the ...
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26 views

Make a cloth influenced by fluid?

I´d like to have a mesh, which behaves like a cloth, cotton or so which is in front of a tube, in which I simulate water. Now when the water exits the tube, I want the cloth (which is pinned at two ...
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1answer
80 views

How can I melt an object and displace it horizontally?

I would like to melt an object that is inside an other object and displace it horizontally. It should simulate liquid wax being ejected from a solid wax cube so it cannot be completely liquid and ...
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21 views

Fluid smulation start Time

l want to make a water simulation. The fluid simulation should start after 600 frame but when l setup to simulation it starts immediately at frame one and l want it to start at frame 600. how can l ...
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23 views

Fluid sim problrms :C

Ok guys, Im not sure, if i understanded the basic system of fluid simulations in blender. So to my case, this hemisphere is assigned as fluid, the bowl as obstacle. Now I would assign the box as ...
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0answers
85 views

Floating objects in a physically correct way

How can I float an object in a fluid? For example I have a fluid container and a ball placed in it. Then filling the container through a pipe with fluid and I want the ball to float based on its size ...
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1answer
18 views

Fluid sim silently fails at high resolution

When I push the resolution of my fluid sim to say 300 or more it will run for a while - about an hour then just quit, no errors. The remaining frames are not simulated and the domain turns back to a ...
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1answer
72 views

Make an object into a fluid

i am trying to make a fluid simulation of a metallic text melting to the floor and doing...you know, do what fluids do. My issue is that if i make the text a fluid and bake it, the shape gets ...
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0answers
21 views

how to soft deform multiple spheres into a base shape [duplicate]

i'm trying to recreate this effect: (Credits to Joey Camacho, https://shop.rawandrendered.com/collections/prints/products/in-formation ) I tired to use multiple soft body sheres falling into a cube, ...
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35 views

Fluid simulation obstacle collision

I am playing around with a fluid simulation however as you an see in the picture the liquid is not touching the bottom of the pool. Instead if collides at the height of the pool border … I created the ...