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Questions tagged [mantaflow]

This tag is for questions about Blender's Mantaflow based fluid simulation. Use it for questions about set up, parameter settings and other aspects.

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Why does my fluid explosion sim have odd artifacts?

Does anyone know why I get this odd geometric noise on my fluid explosion simulation? It's rendered at 256 samples with noise and .05 vorticity. Let me know if anyone has any ideas!
Mason's user avatar
  • 33
0 votes
1 answer
30 views

Smoke not showing in Cycles Render

The smoke effect in my scene randomly stopped showing up in renders. I'm not sure what's changed Show in renders visibility is set to on The smoke has a material There appears to be no problem with ...
Mike'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
1 vote
1 answer
34 views

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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1 answer
46 views

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
64 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
27 views

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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17 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
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1 answer
43 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
14 views

Fire (Mantaflow) showing in render viewport, but rendering some frames blank

Hi there fellow Blenders, I have stumbled on an odd issue; I have been playing around with a fire animation for a bit now, and am happy with the bake and the final look. I have rendered a test in ...
The_Ro's user avatar
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2 answers
83 views

My fluid sim only shows the domain box even after baking

I am making an animation with fluid in an incubator. For some reason, the sim just disappeared and now it only shows the domain box like this, even after freeing and baking multiple times. Does anyone ...
User 23412's user avatar
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26 views

Smoke is Noisy with background image

I am trying to composite a smoke simulation to a background image, but some of the smoke is noisy in thinner areas. How do I fix the issue?
Mike's user avatar
  • 179
1 vote
1 answer
306 views

How to achieve this water splash animation for any solid object ( suzanne for ex)?

I am really trying to understand mantaflow and water simulation in blender and I want to make a fluid animation that throws water on an object in blender (kind of like the 3D splash effect you might ...
Atharva Deodhar's user avatar
2 votes
1 answer
207 views

Mantaflow fluid simulation - Why aren't spray and foam controlled by different elements?

I'm not sure there is an answer to this, but it is very frustrating. In Mantaflow, I have tried adjusting practically every single parameter in the Spray - Foam - Bubbles section in an attempt to get ...
RPSchmidt's user avatar
0 votes
1 answer
70 views

Mantaflow Fire Sim Apply And Move Blend

I have created a Manataflow Fire sim and have identified the frame I want from the sim. I need to take this object and import it into a different blend to incorporate into an animation. The issue I'm ...
Jammer's user avatar
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1 vote
1 answer
105 views

Fluid Simulation - fluid quantity

I am working with Fluid Simulation, and I am struggling with some of the settings. I read through the manual on blender.org but I haven't found a solution for this. I am trying to add fluid in a "...
Simonpeterpaul's user avatar
1 vote
0 answers
95 views

How do I prevent my smoke simulation from getting smaller with more resolution divisions?

Whenever I increase the resolution divisions, the smoke always becomes smaller. I want more resolution without shrinking its size.
Mike's user avatar
  • 179
1 vote
2 answers
2k views

Fluid sim showing multicolor particles. How do I turn them off?

I'm a noob in blender and I've encountered this before but don't remember how i fixed it. The fluid shows these multicolor heatmap like surface in viewport. Renders the domain as a cube instead. I ...
0cybonysc's user avatar
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1 answer
560 views

Why Does My Fluid Sim Suddenly Explode?

I've been fighting with this sim all week. After attempting mantaflow for literally years now I still don't have a handle on how it behaves. Is it mantaflow, or is it me!? That said, I have a basic ...
Glen Candle's user avatar
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1 answer
205 views

Weird coloured circles around fluid sim

I'm trying to create a fluid sim however whenever I view it in viewport the liquid is covered in these strange heatmap-like circles that wont go away. How do I get rid of them?
Ewan Weir's user avatar
0 votes
1 answer
571 views

The domain cube is visible in render

The domain is visible at 64 and 182 domain voxel res. The cube object properties is set to wire view and they physics sim is baked. Compositing is set image->image. here is the file.
bandybabboon's user avatar
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0 answers
26 views

Why is this mantaflow fireball giving bad quality?

When I render high-res with 450 resolution divisions, the result is completely different from the preview at 64. I'm using 2000 particles that result in quantized dots of fire, rather than liquid, so ...
bandybabboon's user avatar
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0 answers
19 views

Why is there no "scenes collection" for this flamethrower demonstration? [duplicate]

Here is a V2 flamethrower file that doesn't work for Blender V3, How do I find the scenes collection list? What other steps can I take to make it work? I only need to tweak the camera and change the ...
bandybabboon's user avatar
0 votes
0 answers
25 views

Mantaflow not working properly

I've been fiddling around with mantaflow in Blender and I can't get it to work properly. I'm trying to fill a cup, but I've encountered some problems: At first my cup wasn't holding the fluid, it was '...
dumdumdumbledore's user avatar
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2 answers
1k views

Blender - Quick Liquid - Domain is a glass cube

In Blender 3.3.0, "Quick liquid" creates a domain which is rendered as a glass cube. I tried in several ways but please check the most straightforward one: Brand-new Blender session Change ...
István Horváth's user avatar
0 votes
1 answer
170 views

Render mantaflow as particles, not mesh

How can I render Mantaflow (fluid) as particles, not mesh? (Blender 3.4+) After rendering with Cycles engine, it should look something like the following (color based on speed, particles evenly spread,...
xgjxcxzk's user avatar
  • 173
4 votes
1 answer
175 views

Should I be changing temperature min and max or reaction speed if I want my flames to go higher?

Working on a fire simulation and I was confused about which value is more physically correct to adjust because I know adjusting reaction speed slows down or speeds up the fire simulation. Any help ...
MrChurch2005's user avatar
1 vote
0 answers
77 views

How do I get Eevee Mantaflow fire to not look pixelated?

I know this type of question has been asked a lot, but no one else's solution works for me. I'm using Blender 3.0, I would be willing to update but not to go to an older version because I need this to ...
SmallFlameBoi's user avatar
1 vote
0 answers
109 views

How to drive noise textures position with attributes?

I'm working on a fire simulation and I've been using a noise texture to remove parts of the fire. So far I've just animated the Z value of the mapping to move the noise up. But I saw someone use an ...
MrChurch2005's user avatar
0 votes
0 answers
248 views

How do I fix that liquid particles not rendering?

When I try to final render my particles they don't render. Preview Render
Dragon75240's user avatar
1 vote
1 answer
201 views

Mantaflow Fire very blocky?

i made a Mantaflow Fire+Smoke Simulation and have to problem, that the fire looks very blocky and large. The Smoke looks pretty good nonetheless. It´s a Fire + Smoke Emitter and the Domain Resolution ...
VICUBE Animation's user avatar
0 votes
1 answer
106 views

Rocket Launch Simulation with Mantaflow looks weird

I want to recreate a Rocket Launch and have the problem, that the smoke behaviour looks very different from Real Rocket Launches. I put a Mantaflow Fire/Smoke emitter and Force Field in every engine. ...
VICUBE Animation's user avatar
0 votes
1 answer
44 views

Water not flowing out of effector [duplicate]

I was making an orange smoothie sim but then I realized that when I wanted the water to pour down the glass cup the liquid sticks, I haven't enabled viscosity and I keyframed the initial velocity on ...
Rayyan Rabbi Rahman's user avatar
1 vote
0 answers
146 views

Fluid volume disappears inside of a moving object?

I've noticed that with the flip fluids addon and the built-in fluid simulator in blender, if you have fluid inside of a moving obstacle/effector, that fluid volume will eventually disappear over the ...
Todahmoon's user avatar
  • 341
0 votes
1 answer
64 views

Liquid Grouping Around Rigid Body Flow Effector

I have a simple fluid simulation set up with rigid bodies that collide with each other before the water flows. The rigid bodies also have a flow effector so that they will affect the water. It seems ...
Anders's user avatar
  • 123
-3 votes
1 answer
260 views

No water is coming out after baking the fluid simulation

I literally never got it right... This time I'm trying to make a pool/fountain. The water should be overflowed the cylinder and onto the cube. But now nothing comes out after baking.
coffeeblood's user avatar
3 votes
1 answer
628 views

Can I reuse / re-import fluid cache files into Blender?

While making multiple fluid simulations I had saved multiple cache folders with the "data" and "config" folders. Is there a way that I can reuse the cached data to import back the ...
Karoliina Pärnänen's user avatar
1 vote
0 answers
44 views

Mantaflow liquid domain with animation nodes: do particles change index?

Ok, I wanted to answer how to make an object flow along with a mantaflow simulation and I thought hey, cool idea: just use animation nodes. So I created this animation node setup: but the result was: ...
Chris's user avatar
  • 1
0 votes
0 answers
691 views

Is there a way to make the liquid stick to a mesh ? Instead of sliding off

I'm trying to animate a chocolate pouring on top of an ice cream which is rotating and moving. I tried all sorts of settings on the liquid mesh but every time the ice cream makes the slightest move, ...
L1994's user avatar
  • 93
1 vote
0 answers
115 views

Quick smoke effect disappear after succesfully baking

I’m using Blender 3.1. I have a smoke domain (quick smoke effect). It plays well in Replay mode. In All mode, Baking completes successfully and the files are generated in the folder. However, the ...
Perrymoon's user avatar
2 votes
1 answer
2k views

Fluid domain is visible before and after the animation start

I've tried following the tutorial video Create this Satisfying 3D Animation in Blender by CG Geek on YouTube and have a problem: The fluid domain is visible as a solid cube object before the fluid ...
Light Bringer's user avatar
0 votes
1 answer
306 views

How to get shrink these Colored Balls over the Liquid? [closed]

I'm doing a fluid simulation right now, and for some reason these particle previews are blocking me from seeing the mesh; which is fine underneath. I was trying to make these spheres smaller, but I ...
Portal124's user avatar
0 votes
1 answer
429 views

Import Mantaflow VDB Cache Files into Bleder doesn´t work correctly

I made a Smoke Simulation with Mantaflow and then tried to import the vdb files from the data folder in the cache folder, but the imported vdb sequence doesn´t look the same. It looks simplistic and ...
VICUBE Animation's user avatar
0 votes
0 answers
121 views

Blender Fluid simulation for larger areas?

I have a room with a pipe on the ceiling that water has to drip down from. For this reason I have to make the domain accordingly to the bottom that the water comes up and splashes there. But because ...
VICUBE Animation's user avatar
1 vote
0 answers
562 views

Liquid Simulation with small Emitter in large Domain?

My problem is that my emitter only emits liquid when the emitter is big or the domain small enough. But I need a very small emitter that is supposed to squirt water within a large domain. Is that ...
VICUBE Animation's user avatar
0 votes
1 answer
266 views

I want to have cold smoke emitting from bottle but can't get the settings right

So I want to make an ad video for my portfolio. It's a beverage bottle and I saw a tutorial on Youtube which was smoke from a cup of tea. It worked for the top part of the bottle and I tried to tweak ...
Ace's user avatar
  • 193
1 vote
0 answers
170 views

Convert Mantaflow or other sims to mesh/get specific frame from sim?

Is there a way to convert simulations into mesh? Freeze on a specific frame you like, bake it/convert it to geometry so you can 3D print it? I'm asking specifically about water.
Harry's user avatar
  • 11
0 votes
1 answer
26 views

Problems with Materials on imported mantaflow object

When I import a baked mesh object using the mantaflow simulation, and applying a material to it, it doesn't appear to hold the same "material properties" as any other object imported or ...
Marc Schwertfager's user avatar
0 votes
0 answers
455 views

Smoke Simulation - "border collision" is not working

I am trying to create some nice sprite sheets from blenders smoke simulation that could be used in game vfx. But the smoke always fills up the entire smoke domain, the "border collision" ...
TrytoFly's user avatar
  • 133
0 votes
1 answer
258 views

Fluid ignores gravity when hitting Effector, runs horizontal?

I am new to this forum and just signed up to solve this problem that i have with Mantaflow simulations. See I watched a lot of tutorials about fluid simulations but still am relatively new to blender, ...
A R's user avatar
  • 1