Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

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.

0
votes
1answer
35 views

Flow water from one Object to Another

I'm fairly new to Blender but have done a fair few tutorials and starting to get my head around things. I've recently watched a Tutorial on Water Physics and had no issues following along and have ...
2
votes
0answers
28 views

fluid leaking through obstacles

I'm a beginner to blender, so please ignore my mistakes and be kind enough to guide me through this :) I've scene this question before, but never got a satisfactory answer. I'm working on two ...
1
vote
0answers
6 views

Fluid simulation wont bake with obstacle object and it shape

I have to main problems and that is | 1) the Fluid simulation doesn't work in obstacle 2) and even I removed the obstacle it won't take its shape of circular https://www.dropbox.com/s/...
0
votes
0answers
13 views

I can't seem to get my fluid animation working

I have been trying for a while to get a fluid animation to work, it won't bake or start if I press the play button. Here is the link to the .blend file. https://drive.google.com/open?id=14fnkyy-...
0
votes
0answers
10 views

FLIP Fluids Assign different materials to separate fluid objects

I am using the FLIP fluids add-on. I have four different fluid objects which I'd like to each have a different material but because they all are calculated under the same domain I they all have to ...
1
vote
1answer
40 views

Water flow looks like drops

Im a beginner to blender, so some settings are a bit confusing to me, please be kind enough to guide me to sort out this issue. In this animation, I cannot generate a water flow which looks realistic....
2
votes
1answer
71 views

Is the physics engine capable of reproducing this effect of a ball oscilating due to a water jet? [video] [duplicate]

So I have this video: https://www.youtube.com/watch?v=yq_qSWZDHHk I'm wondering, is it possible in a scene to add a water source on top and a rigid-body ball on the floor, and with the correct ...
0
votes
0answers
18 views

Chunky Fluid in Fluid simulation?

Is it possible to have "chunky" fluid in a simulation? I have been playing with adding particles, with a fluid simulation as the emitter, and not getting results I am looking for. The fluid simulation ...
2
votes
0answers
21 views

Weird dotted pattern in fluid simulation

I tried to simulate honey spilled from a bucket. The problem is that there is a dotted pattern on the simulation. What is causing this and how to fix it? The result: My settings:
0
votes
1answer
67 views

Blender MantaFlow … no visible result!

Im really wondering why the MantaFlow branch does NOT show me anything. What I mean ... I made a simple cube as a domain, than another one as an obstacle and finally a sphere as a flow. Leave the ...
0
votes
0answers
12 views

Control position of sloshing fluid via Python?

Is it possible to drive a fluid simulation with data imported from elsewhere? I would like to control things like the position of the center of mass. Control over the shape of the free liquid surface ...
0
votes
0answers
12 views

Fluid simulation rivets

I've been working on this for a while but cant get past these steps in the fluid. How can I fix this? !
0
votes
0answers
34 views

Realistic Liquid-Fabric Interaction

Good Morning everyone, I've a little personal challenge going on right now, trying to replicate as much as possible the selected showcase at tis year’s Siggraph. I'm completely unable to find a way ...
0
votes
0answers
54 views

The drool simulation

Can you tell me how to make the drool simulation like here: https://youtu.be/gR2OhFLkLM0#t=5m6s? Fluid simulation doesn't give sticky effect, it's just water. I tried to stretch mesh using softbody, ...
1
vote
2answers
93 views

how to approach making these granules?

Ok, so I have to make this product in 3D, Im fine with modeling and texturing the container, what Im not sure of is how to approach the granules inside the container, its almost like a rough sand/ ...
0
votes
0answers
19 views

Blender Fluid not taking form

So, I wanted to make a cool animation whith a cup of coffee, where the coffee is solid and cup suddenly splashes like water. I've got some problems. First, when I was experimenting with it, it did not ...
2
votes
0answers
31 views

Fluid leaks even through two thick obstacles

In short: My moving obstacle leaks all the fluid that it's supposed to hold. I have tried tens of changes in the parameters (and all the solutions to similar questions), but it's not going to get ...
0
votes
0answers
9 views

The Fluid Simulation Viscosity Preset New Entry Values appear not to Stick

How can the following problem be corrected? Problem The Fluid Simulation type of Domain has a Viscosity Presets list of values. Blender User can enter a new preset named [Preset A] with Base and ...
1
vote
1answer
53 views

How to make physical simulation of unmixable fluids (like oil and water) in any container

I wish to make an animation of pouring water over oil or vice versa. In physical simulation, how do I make oil thicker than water and make both liquids behave realistically when stirred and left to ...
2
votes
0answers
23 views

Imported Alembic (Animated mesh) I need it to have same # of vertices for fluid sim

I am working on a project where I plan to have multiple fluid sims running, I am having problems with my imported animated mesh, where each frame has different number of vertices. (This has previously ...
2
votes
1answer
30 views

Fluids simulation went crazy

I have a problem with fluid simulation. The project is pretty simple, I have just a domain object and an inflow object. The inflow object is supposed to start drop oilish fluid at frame #1100 and ...
1
vote
1answer
30 views

Speed of baking fluid simulation slows down drastically

When baking a fluid simulation the process slows down. The simulation has object of type inflow and object of type control. The speed of baking will go down from rate 1 frame/min to 0.06 frame/min ...
1
vote
0answers
9 views

Using a Character Mesh as a Fluid Obstacle

I'm trying to use an imported character mesh as a fluid obstacle. The only way I can get it to actually act as an obstacle is to select "Export Animated Mesh" in the fluid obstacle settings. (...
0
votes
0answers
22 views

fluid simulation fluid control. What are proper expectations?

Question What should be expected to happen in the following situation? A fluid control in some random shape such as asterisk character mesh or torus mesh is placed within the bounding box of a fluid ...
0
votes
1answer
29 views

Domain stays a cube when baking?

Whenever I bake my domain, it stays a cube. It does work when the fluid object is outside of a hollow obstacle I've placed it in. I've recalculated the normals, and tried resizing the domain, but ...
3
votes
1answer
102 views

How to make water wall effect?

Go you have any ideas how to make this sort of an effect? I've tried to achieve this using water simulation, but it didn't turned out well. Using a texture looks like rational, but I have no idea how ...
0
votes
1answer
25 views

Blender Compressibility Unit Question

What is the unit of compressibility in Blender?
6
votes
1answer
133 views

How to make a water vortex

I'm very new to Blender and I'm trying to make a water vortex like this.(may be not the easyest first project for a newbie) I watched several tutorial on liquids particle etc but I'm not sure what ...
0
votes
1answer
28 views

Obstacle on path does not interact with fluid

When I animate the obstacle with keyframes and in the animation the obstacle goes through fluid, it interacts. When I do the same with obstacle following the path, it does not interact. Am I missing ...
1
vote
1answer
94 views

How to create a rope [duplicate]

I have a buoy on the surface of a fluid simulation that moves around. It has no Rigidbody attached, only a few rotation and location constraints which should cause no problem. I am wanting to create ...
0
votes
0answers
37 views

Fluid is not coming out of the inflow

I am trying to make fluid come out of its out flow like a hose but for some reason the fluid appears in random places and drops to the floor instead of coming out of the out flow How do i make sure ...
0
votes
0answers
21 views

Fluid bake not working on higher resolutions?

I was watching this video: https://www.youtube.com/watch?v=zmw-BTCbWMw I have used all the same settings as the tutorial. However, when I change the fluid's resolution from 70 to anything above ...
0
votes
1answer
34 views

How to create a solid stream of liquid?

I'm new to blender and I want to create more things with the fluid simulation but it's not coming out like a faucet, instead it comes out in these globs is there a way to change this? P.S: I also ...
0
votes
0answers
12 views

Keyframes in Fluid Simulation [duplicate]

I am making a water animation to export to unity. How do I add keyframes to fluid animation so that I can use that animation in unity ?
0
votes
0answers
32 views

Why don't viscosity fluids flow on surfaces correctly?

I am trying to make a fluid with very high viscosity (like honey, chocolate, glue, etc), but every time I go cache it, the ends of the fluid "wobble" around all weird (especially when it hits ...
4
votes
1answer
360 views

Liquid simulation sees obstacles' rotation correctly but not their location

I'm having a problem with a simulation, where an obstacle and an outflow are being moved by a parenting relation to an empty, and some fluid should be interacting with them. The obstacle is a glass-...
3
votes
2answers
100 views

Why puddles instead of water flow?

I was following this tutorial. I created: circle as water source, pool, domain. I selected Cycles Render; Objects have following settings: water circle: fluid type - Inflow, Volume - Shell, y = 1; ...
0
votes
0answers
18 views

How can I create a dip molding process in Blender?

I want to create an animation including something similar to dip molding process: An object goes inside a highly thick/viscous liquid and comes out. Some of the liquid sticks to the surface and then ...
1
vote
0answers
14 views

Problems with Fluid Simulation baking / cache

Recently today, I created a fluid simulation. I baked through it a few times, updating the settings to get to what I wanted. I reached a desirable effect. Then the fluid simulation baking stopped ...
0
votes
0answers
15 views

Fluid domain dimensions are different in Edit mode from Object mode

I am building a beach scene and have a strange thing happening to my domain. Basically the domain dimensions are different when I switch to edit mode. I think I scaled the cube once it was a domain, I'...
0
votes
0answers
10 views

Fluid Offset issue

As a test I decided to try using positive offset to start the fluid sim 50 frames Before the start of the animation, allowing it to be partially, or wholly done when the animation began, it worked in ...
0
votes
1answer
18 views

Inactive Fluid flat glitch

I am animating a fluid simulation that's supposed to be used for an animated simulation of 'the floor is Lava', the details are unimportant. What is important is that to ensure the items that fall ...
2
votes
1answer
115 views

Fluid ignores obstacle

Hello I am trying to make something like this https://www.reddit.com/r/Simulated/comments/8rt6wx/frosting_a_cake/ (I know this uses flip fluids addon, I am trying to recreate something similar with ...
0
votes
0answers
22 views

Blender constraints objects fluid obstacles require export mesh

I have seen that when using export mesh I often get undesirable results being maybe the fluid becomes little rolls or other weirdness. I have seen when keypointing a duplicated object as the obstacle ...
0
votes
0answers
65 views

Water is Visible to outer surface of pipe

I am Simulating Fluid flow in Blender (See Image). The geometry is imported as .stl (Obstacle, Partial slip=0.6) and water has been added in the tank as fluid. It is a free flow from tank. The current ...
0
votes
1answer
102 views

Fluid simulation in moving object

I am working on animation in which I have moving object filled with liquid. Problem is that liquid is reaching over the mesh. Scaling does not fix the problem since the liquid does not follow up the ...
1
vote
2answers
52 views

Water simulation does not flow into the bucket

I wanted to make a simple scene where water is flowing into a bucket. I had set the domain nicely outside the obstacle i.e., the bucket and a small uv sphere as the inflow. After that when I bake it, ...
1
vote
0answers
17 views

Bake Fluid to affect Cloth

I was exporting the fluid as an .abc file and then reimporting it, hoping I could have it collide with my cloth. I know that the cloth would not affect the fluid this way but I thought the fluid could ...
0
votes
0answers
30 views

Flowing tears on moving head

As the title says, I want to have tears flowing from a pair of eyes but I seem to not know how. What I tried was to have a domain cube cover the head, the head (which isn't a separate mesh from the ...
0
votes
1answer
22 views

What should i do if my fluid falls through an object?

I want to make a shoreline scene, but my fluid always falls through my "floor". I dont know why (it's my first time with fluid sim). Does anybody know what the problem is?