FlipSolver2d
Blender-FLIP-Fluids
FlipSolver2d | Blender-FLIP-Fluids | |
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1 | 33 | |
2 | 1,718 | |
- | - | |
7.9 | 4.6 | |
1 day ago | 25 days ago | |
C++ | C++ | |
- | GNU General Public License v3.0 only |
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FlipSolver2d
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Small timestep induces instability in flip simulation
Is that normal for FLIP to explode like this? What mistake in implementation might cause this? My understanding is that with more substeps FLIP updates accumulate more and more velocity, while PIC keeps getting new velocity from grid every substep, but i am unsure of how to fix it. Code: https://github.com/ArtNlk/FlipSolver2d
Blender-FLIP-Fluids
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How to stop fluid simulation from exploding?
If all else fails, you may want to consider a premium addon like FLIP Fluids, which in my experience feels more stable than the default fluid sim, though it may be a bit costly. Consider trying the demo.
- Is there any way to get Flip Fluids for free?
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Fluid Simulation Failing to Complete Render
For troubleshooting conflicts between addons, it can help to test in a fresh Blender environment with default settings and installing/enabling addons one at a time. In case it helps, we have some instructions here for how to backup user-preferences, test in a clean environment, and then restore your original addons and settings: https://github.com/rlguy/Blender-FLIP-Fluids/wiki/Baking-Crash-Troubleshooting#testing-the-flip-fluids-addon-in-a-clean-installation-of-blender
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Have you ever seen a Blender donut like this?
There's a free demo if you would like to try it out: https://github.com/rlguy/Blender-FLIP-Fluids/wiki/FLIP-Fluids-Demo-Addon
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FLIP-Fluids Compiled Addon!!! Works with Blender 3.4 :)
The above was built from the code on the GitHub repository, which is under the GNU General Public License. This license allows for redistribution. Unfortunately, I do not have binaries for MacOS or Linux since I only use Windows. Also, note that the above download is for Blender 64-bit (which should be the default on the blender.org downloads page). The GitHub version doesn't have pre-made materials like the paid version on Blender Market. (Note: The demo file on GitHub has watermarks on the simulation. This is the full version of the addon, not to be confused with the demo.)
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Flip Fluids ignoring obstacle
Make sure that your objects have correct manifold/closed/watertight geometry. See this topic for more info and how to verify geometry: https://github.com/rlguy/Blender-FLIP-Fluids/wiki/Manifold-Meshes
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Thick & Thin Liquid Mixing Test
This is also an open source project and we provide a free version with the source code here including build/compile instructions: https://github.com/rlguy/Blender-FLIP-Fluids
- How Do I Make Curling Waves Like This?
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Trying out some FLIP fluid simulation
Thanks! Mostly by reading through the FLIP Fluid Wiki and watching some tutorials on YouTube.
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Colorfall
The related documentation for how to enable and use attributes (such as the color attribute) is here: https://github.com/rlguy/Blender-FLIP-Fluids/wiki/Domain-Attributes-and-Data-Settings
What are some alternatives?
webots - Webots Robot Simulator
Boat - Fluid Simulations using Blender
FluidX3D - The fastest and most memory efficient lattice Boltzmann CFD software, running on all GPUs and CPUs via OpenCL. Free for non-commercial use.
gazebo-classic - Gazebo classic. For the latest version, see https://github.com/gazebosim/gz-sim
WarpX - WarpX is an advanced electromagnetic & electrostatic Particle-In-Cell code.
SPlisHSPlasH - SPlisHSPlasH is an open-source library for the physically-based simulation of fluids.
pioneer - A game of lonely space adventure
lammps - Public development project of the LAMMPS MD software package
xolotl - A MATLAB neuron simulator. Very fast (written in C++). Flexible (fully object oriented). Immediate (live manipulation in MATLAB). Comes with a powerful parameter optimizer. Get started ➡️
LatticeBoltzmann - A 2D Lattice Boltzmann program
aphros - Finite volume solver for incompressible multiphase flows with surface tension. Foaming flows in complex geometries.