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.

Filter by
Sorted by
Tagged with
0
votes
1answer
113 views

How can I export baked fluid simulations that work in Xcode?

When I export a baked fluid sim to Alembic, it imports back into Blender just fine, but in Xcode, it's just a static mesh. I've tried a few dozen different combos of bake and export options, and they ...
1
vote
1answer
33 views

Why does my fire + smoke simulation look chunky?

I am following this particle explosion tutorial https://youtu.be/29yfS-icS3M and for some reason instead of looking nice and billowy and realistic, it looks like a bunch of floating chunks. My theory ...
0
votes
0answers
12 views

Generating waves with fluid sim in 2.9

I would like to generate waves for my scene. But my wave generator is currently not working as I would like it to. As You can see the water seems to be compressed somehow and no waves are generated. ...
3
votes
2answers
90 views

Where did the fluid simulation point caches go in 2.93

I used to manage fluid simulation point caches by copying them to a remote server for cloud rendering, they used to be in ...
2
votes
1answer
3k views

Physics Fluid Simulation Not Working

I've downloaded Blender for the first time, version 2.90.0. I've watched multiple videos on how to create a fluid simulation. I've replicated the steps and for some reason, it doesn't simulate when I ...
0
votes
1answer
337 views

Why i cant see ''Bake data'' on my blender 2.83?

I am trying to make a fluid simulation but after all the settings done i dont see ''Bake data'' option in my physics panel.
0
votes
1answer
71 views

Unwanted fluid simulation clumping

I'm running this fluid simulation at a small scale (real-world scale) and I find that the water particles clump together into balls? I can't seem to find the setting to make it more like a constant ...
0
votes
1answer
17 views

Start Fluid simulation before frame 0

I want an object to emerge from the water. So I've created a domain and a water object in order to create my water. When I begin the simulation it needs several frames for the water to settle down ...
1
vote
1answer
16 views

Fluid Simulation has Blue Dots around the Edges of Baked Mesh

I've searched for an answer and can't find out why my blender is acting up like this and i've messed up everything i can think of: Upres Factor, Resolution Divsions and Substeps Sampling and to no ...
1
vote
1answer
14 views

Fluid go through container when it's moving

I'm having a problem. As you can see on the pictures, my liquid simulation passes through the glass when the glass is moving. I tried to invert normals, to increase the surface thickness of the glass, ...
0
votes
0answers
19 views

Where can I find temp difference for fluid smoke simulation?

I'm following an old tutorial online on how to create liquid splashed using the smoke sim. But I can't find the Temp Diff setting in my version or it's equivalent. Could anyone help? I essentially ...
0
votes
2answers
28 views

quick liquid shows a black box on 3d viewport [closed]

I can't seem to figure out why it shows a black box in 3d viewport. I followed a quick liquid tutorial and I used a quick liquid function from the F3 menu, after changing the liquid from geometry to ...
0
votes
1answer
35 views

How to make this explosion look less orthogonal?

Suggestions on how to make this look more natural without increasing the resolution too greatly? Trying to minimize bake time. https://youtu.be/gKrwqdeRbuY
0
votes
1answer
301 views

FLIP Fluids - How to include foam & bubbles when exporting the geometry?

I am using the FLIP Fluid add-on to generate a water simulation. I managed to export the animation into .obj sequence but here is the problem now. The Foam & Bubbles particles generated from FLIP ...
0
votes
0answers
7 views

Fluid bake wants to re-run when I reopen the file

I have a blend with fluid that often seems to ignore that I have already baked the data, showing the Bake button instead of a Free button when I open the file again. While I could ignore this (the ...
0
votes
1answer
268 views

drop with a specific shape into a quiet liquid water surface with mantaflow

I'd like to realize something like this https://www.youtube.com/watch?v=RLn1ErhxOPo With the previous fluid simulator in Blender I was able to set a shape as a quiet basin of liquid, and another ...
0
votes
0answers
8 views

Blender Fluids Vector Blur

Since the new fluids engine was introduced in Blender 2.82, I have been trying to get the vector blur function to work, but so far not good. I managed to get a good result for the fluid itself from ...
1
vote
1answer
74 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 ...
0
votes
1answer
663 views

After baking my water simulation the play back of the water is tiny colored dots

After baking my water simulation. The playback of the water is coloured dots, tiny ones. What is the setting to change this? I have watched youtube tutorials and I followed them step-by-step but it ...
0
votes
1answer
314 views

Blender fluid sim only shows particles and cannot show the fluid as a solid or a mesh

I am new-ish to blender and have just started using the fluid options. I can get to the point where I have all my settings for the inflow and I have everything ready to go, but when I bake it, the ...
1
vote
1answer
326 views

Mantaflow. The liquid just doesn't respect the collision object

Mantaflow. The liquid just doesn't want to properly respect the collision object. I've watched countless tutorials and still can't get it right. Google drive link
1
vote
1answer
131 views

Mantaflow - creating smoke out of fluid particles

im trying to implement mist in my water scene, to do it im trying to use spray particles as a way to generate gas, but yet didnt find a way for it to work. I know it is possible in FLIP Fluid addon ...
0
votes
1answer
109 views

Fluid animation timings

I want to make a short animation, of which one part is a drop falling and hitting a surface. Now I want the animation to begin at 300th frame and since I am using the default 24 fps, the start is at ...
0
votes
1answer
21 views

water not following a path even after adding path constraint

I created a pipe in 3d. water does not follow the path but starts falling downwards. So, I added path constraint (follow path curve object) inside the pipe for the source object. My source object is ...
0
votes
1answer
178 views

Blender 2.9 Mantaflow - fluid weird behavior

I am receiving very strange results with Blender 2.9 fluid simulation - even though I am only trying to achieve an effect of the cup falling on the side, the fluid flows in the air unnaturally, and ...
1
vote
2answers
29 views

How do I stop some liquid particles passing through an effector?

I'm having a problem with a simple liquid simulation in blender. I have a domain, an inflow object (just a small cube), and an effector (which is a square shaped bowl with very little geometry). ^ ...
2
votes
0answers
111 views

How to increase ocean foam?

I created an ocean simulation in which a ship passes and displaces the ocean but the problem here is that the foam is not visible or less visible in camera view. How do I increase the foam cover area? ...
1
vote
1answer
20 views

Fluid domain does not react to object inside object

My domain doesn't react to text object inside of it (text is inflow and converted to mesh). I've attached blend file below.
1
vote
0answers
21 views

Converting fluid simulation to key frames?

Can you convert fluid simulation to key frames? I need to export my simulation from one blender file to another.
0
votes
1answer
321 views

Fluid mesh disappears when I save

I am brand new to Blender and this is the first project I've made. I am using 2.83. I am following this tutorial: https://www.youtube.com/watch?v=6zOjJfc6ZJI to make a fluid fill a container. ...
0
votes
0answers
33 views

Fluid simulation - in-flow that doesnt start from frame 1 shows domain as an object until the inflow kicks in

Fluid simulation problem: i have a fluid simulation that i want to animate. i do NOT want the flow to start on frame 1. I want it to start on frame 20, ending on frame 50. I did the following: set a ...
0
votes
1answer
17 views

Fluid Simulation won't do anything… whatever I try

So i made a very simple fluid simulation in blender 2.91.2 and whatever I try nothing happens (or at least shows up). The only time I get anything to work if I use a cube as domain and a UV sphere as ...
0
votes
0answers
16 views

Fluid simulation … How does the Blender User Resume Mesh Baking without pressing the escape key first?

Desired Scenario Mesh Bake is always resumeable in the UI (The degenerate case being 0 frames to bake). Resumeable means the UI offers a Resume button A UI Button that meant bake only what frames ...
0
votes
0answers
22 views

Fluid simulation destroys CPU temperature [duplicate]

I didn't realize blender was putting so much strain on my CPU when I bake fluid simulations. I'm doing 200 Resolution divisions and 4 Mesh 'Up res factors' The CPU temps reach up to 95c and keeps ...
1
vote
2answers
46 views

suspend/sleep while blender is running

I hadn't used blender for several months and previously when it was running a fluid simulation overnight Windows would not go to sleep. But last night my computer went to sleep. This is blender 2.93,...
1
vote
1answer
324 views

How do I make the domain bake the fluid object?

I'm following Blender Guru's guide for Introduction to Blender's Fluid Simulator and I have everything all set up, a cup with an object inside of it and a cube. The cup is set as an obstacle, the ...
0
votes
1answer
81 views

Fluid simulation not working properly

basically i wanted to create a fluid simulation in which the liquid (soy sauce) pours out of a kikkoman bottle. I've already set up the domain, the flow emitter inside the bottle (tried to use both ...
0
votes
0answers
13 views

How does the Blender User reuse a fluid simulation .. without an undesired cache delete?

Desired Scenario Create a fluid simulation once and use it multiple times with a different range of simulation frames using different Blender files. Cache should be read only. The fluid simulation ...
2
votes
1answer
48 views

Dynamic Paint on Mantaflow Fluid Simulation doesn't work well to create wet map

I've been messing around with dynamic paint to create wet map for fluid sim in the past couple of days. It's hard to put this into word but, I still can't figure out why the paint kept skipping some ...
0
votes
1answer
57 views

Multiple Colors Flame + Smoke 1 Domain

Is it possible to have multiple objects that are emitting Flame and Smoke have different colored flame and smoke within the same domain?
1
vote
1answer
37 views

Liquid not showing after the domain is resized 2.91.0

Every time I try to create smoke or liquid simulation the smoke or liquid dissapears permanently after I resize the domain. I have tried: Applying scale to inflow, domain, inflow and domain; Using ...
1
vote
2answers
1k views

Blender 2.82 Mantaflow on a small scale

I am able to input liquid into the scene from a flow object set as geometry and the liquid falls into a flask that is set as a collision effector. But when I scale down the flask to its actual size (...
0
votes
1answer
43 views

No BAKE BUTTON in 2.92

I'm trying to upload a fluid animation to a render farm (rebus.net) but it says I have to do a FINAL bake. There is no FINAL bake button as far as I can see in 2.92, just the All bake button and ...
1
vote
0answers
97 views

blender as module , will it suffice? [closed]

I'm doing a simulation project with two colleagues in university in which we'll simulate a star(it's a physics project). we're considering building blender from source as python module and use the ...
2
votes
1answer
78 views

Strange ladder effect on fluid

I have an issue I seem to keep coming across with the fluid simulation; I seem to be generating a strange 'ladder effect' where the fluid spreads out regular intervals as shown in the image below. ...
0
votes
1answer
2k views

(Blender 2.82) Mantaflow Fluid Simulation not working

So basically I've been trying to get a simple fountain fluid simulation to work. However, there are a lot of times despite after baking data and mesh, nothing happens. I just see the baked mesh in the ...
4
votes
1answer
475 views

Fluid simulation only shows the domain

I was making a fluid simulation, but when I try to bake it, it only bakes the domain. The fluid doesn't appear from the inflow. Do you know why? Thanks. This is what appears when i render
1
vote
1answer
170 views

Workaround for Resuming Fluid Simulation

Suppose I have a fluid simulation I have just baked and want another second of it. Are there any drawbacks to applying the fluid simulation to the mesh (in the modifiers tab) then having that new ...
1
vote
0answers
53 views

Major help needed in detailed waterfall [closed]

There are many youtube tutorials on making a waterfall, and a lot of similar answers on this site, but none are as detailed as the one I am trying to make. I hope my question won't be marked a ...
1
vote
0answers
1k views

Foam particles: Realflow to Blender

is there any reasonable way to import foam particles from Realflow to Blender (and satisfyingly render them in Cycles afterwards)? Foam converted to mesh works but it's far from perfect. I don't mind ...

1
2 3 4 5
20