Flip Fluids

by RLGUY in Scripts and Addons

Try out the free FLIP Fluids demo!

Are you frustrated with the current Blender fluid simulator? Are you tired of spending countless hours baking only to find that your simulation still just doesn't look real? Do you love working in Blender but find that you have to use other software when you need a realistic fluid effect?

NOT ANYMORE! There is a solution, and it is FLIP Fluids!

FLIP Fluids

FLIP Fluids is a powerful liquid simulation addon that gives you the ability to create high quality cinematic fluid effects all within Blender! Created by Ryan Guy and Dennis Fassbaender (check out our interview with the Blender Market!).

The core fluid engine, a modern FLIP-based fluid solver, has been under development for over four years with over two years of development focused on tightly integrating the simulator into Blender as an addon.

The FLIP Fluids simulator was created to improve on many aspects of Blender's internal Elbeem fluid simulation system such as speed, performance, accuracy, customizability, and user experience. We use a familiar and intuitive simulation workflow, so if you have experience with the internal fluid simulator or other fluid simulation software, you will be able to get yourself up and running with FLIP Fluids in no time!

Check out our most recent animation reel created for the Blender Market Spring Sale!

Check out our FLIP Fluids Demo Video

Key Features

High Performance
The core fluid engine, written in C++, is designed for running high performance computations and massive physics calculations efficiently. Multithreaded and extensively optimized, this simulator is built for speed.
Whitewater Effects
Create awesome large scale fluid effects with the whitewater simulator. Generate and simulate millions of foam, bubble, and spray particles to give a sense of realism to large bodies of water.
Viscosity Effects
Use the highly accurate viscosity solver to simulate thin silky-smooth liquids, thick fluids that buckle and coil, and anything in between.
Built-in Mesh Generation
The built-in mesher generates highly detailed meshes so that your fluid surface is render-ready immediately after simulation. This mesh generator is memory efficient and able to produce meshes containing millions of triangles without requiring massive amounts of RAM.
Fracture Modifier Support
Create interesting destruction simulations by using the FLIP Fluids addon with the Blender Fracture Modifier branch. The fluid engine is optimized to support fractured objects that may contain hundreds to thousands of individual pieces.
Excellent User Experience
The addon interface was designed with a focus on functionality and usability to create a comfortable workflow. View simulation progress, meshes, and statistics in real-time. Pause and resume simulation baking- even after a Blender crash. Create and manage your own preset settings. Quickly apply materials from the fluid material library.
Stable, Reliable, and Built for You
We ran a closed beta testing phase involving over 250 testers to ensure that this complex simulation system is reliable, intuitive, and ready for you to use in your projects. We gathered your feedback and added your suggestions. This addon is built for you!

More Features

  • Simulation
    • Pause a simulation and resume baking at your convenience. Any simulation can be continued from the last baked frame even after a crash or computer shutdown.
    • Set length of animation manually or automatically by framerate.
    • Nearly all simulation settings can be keyframe animated.
    • Hover over any setting to view a tooltip description. Detailed settings documentation and tips are also available on the Wiki.
    • Want to keep the same level of simulation detail while resizing the domain? Lock the simulation voxel size and the addon will automatically adjust grid resolution as you resize the domain.
    • Manage your scene cache directory. Operators will help you rename, move, copy, or delete your cache files.
    • Advanced settings for power users who want to experiment with simulation accuracy and performance.
  • Whitewater Simulation
    • Control the amount of whitewater generated at wavecrests and in areas of high turbulence.
    • Control how foam is carried along the fluid surface: In tight streaks, or diffuse and spread-out?
    • Control how bubbles rise to the surface and how bubbles are advected with the fluid.
    • Control amount of drag on spray particles as they fall to the fluid surface.
    • Set percentages of foam/bubble/spray particles for display and rendering.
    • Render whitewater particles with a simple icosphere or use your own custom object.
  • Mesh Generator
    • Adjust particle size for the particle-to-mesh surface generator.
    • Create high detail meshes by increasing the subdivision level.
    • Generate meshes that wrap smoothly around curved surfaces.
  • Presets and Materials
    • Save your own custom default domain settings.
    • Create and manage domain presets.
    • Organize presets into packages and add custom thumbnail images.
    • Export and share preset packages.
    • Apply multiple presets at once using the preset stack.
    • Quickly apply materials from the fluid material library.
  • Simulation Stats
    • View simulation, timing, and mesh stats for the entire cache or an individual frame.
    • Export stats to CSV format and create your own detailed graphs.
  • Debugging Tools
    • Visualize the simulation and meshing grid.
    • Visualize fluid particles and velocities.
    • Visualize how the simulator 'sees' your obstacle objects to diagnose issues with meshes.
    • View detailed simulation progress in the Blender system console.
  • Obstacle Objects
    • Support for animated obstacle objects.
    • Turn obstacle meshes 'inside-out' to contain fluid inside of the mesh.
    • Accurate fluid-solid interaction against curved surfaces.
    • Control amount of fluid friction against the obstacle surface.
  • Fluid and Inflow Objects
    • Support for animated inflow objects.
    • Manually set inflow velocity, or set velocity towards a target object.
    • Add inflow object velocity to the emitted fluid for realistic animated inflows.
  • Outflow Objects
    • Support for animated outflow objects.
    • Control whether outflow objects remove fluid particles or whitewater particles.
    • Control whether outflows will remove fluid entering the object or leaving the object.

System Requirements

  • Windows, MacOS, or Linux operating system
  • Blender 2.79, 2.80*, 2.81 (64-bit)
  • CPU 64-bit Intel® or AMD® multi-core processor
  • 8 GB RAM minimum, 16 GB or more of RAM memory is highly recommended

*Blender 2.80 is not fully supported

Blender 2.80 is not fully supported due to severe bugs within Blender 2.80. These bugs can cause frequent crashes when using the FLIP Fluids addon. Blender version 2.81 or later is recommended.

See this topic for the known issues in Blender 2.80

FLIP Fluids Demo

Want to test the FLIP Fluids simulator before you buy? Try the free demo version and create, run, and render your own simulations with a few small limitations! Find out more about the FLIP Fluids Demo here.

What You Get

  • The FLIP Fluids addon installation file
  • Example scenes with lighting and render setups
  • Access to all future updates and new features
  • Tool support
  • Full addon and engine source code

Click for details about the current available downloads!

What the Artists Say

Grant Wilk, Host of Remington Graphics and CGC Weekly

"The FLIP Fluids Blender add-on allows both artists and simulation enthusiasts to do so much more than they could ever imagine within Blender. The work and care put into this add-on is incredible, and has allowed me to expand my knowledge and abilities on multiple levels. A must have for any avid Blender user."

Lawrence Jaeger, 3D & Motion Design Artist

"Having this kind of power inside of Blender is a complete game changer. To be able to stay within the program that I am so comfortable in and create these kind of FX is amazing. If you are wanting to add liquid simulations to your skill set, this addon is a must have!"

Joel Howe, Technical Animator

"A very promising fluid simulation plugin for Blender with a top-notch feature set, including whitewater bubbles and foam. I worked with the beta to get some great visual results from Blender and was very happy with the stable simulation bakes at a range of solver resolutions. Looking forward to integrating FLIP Fluids into my animation production workflow!"

Release Notes

Stable Releases

The next stable version 1.0.7 is in development. For access to the latest features and improvements, try out the experimental releases!

This section only details the latest stable release. Follow this link for complete and more detailed release notes: Stable Release Notes.

  • version 1.0.6 (Oct 10 2019)  
    • Added support for Blender 2.81
    • Added reminder in the addon installation/preferences menu and Physics panel to complete installation by restarting Blender
    • Added warning about Blender 2.80 bugs to the addon installation/preferences menu and system console output
    • Added a reminder to prevent render crashes by locking interface in Blender 2.8x to addon installation/preferences menu and system console output
    • Added an operator to the FLIP Fluid Display Settings panel and toolshelf menu to automatically lock the interface (Blender 2.8x)
    • Added an operator to the FLIP Fluid Display Settings panel and toolshelf menu to automatically set the render display mode to Fullscreen (Blender 2.79)
    • Added operators to toolbox menu to automatically launch command line baking and rendering processes (Feature only supported on Windows)
    • Added monochromatic FLIP Fluids icon for Blender 2.8x
    • Fixed issue that could cause frequent Blender 2.8x crashes during render, Alembic export, and rigid/cloth simulation baking
    • Fixed bug where Inflow 'Substep Emissions' value could not be keyframed
    • Fixed TypeError that could be triggered at the end of simulation baking
    • Fixed bug where console output would still be displayed during mesh export when the 'Display Console Output' option was disabled
    • Reduced amount of particle meshing artifacts on boundary of domain
    • Addon no longer automatically deletes the FLIP Fluids cache when closing an unsaved .blend file
    • Addon now automatically adds a smooth modifier (set to 0 iterations) to the fluid mesh objects
    • Addon will now display an error if a user attempts to bake a simulation before completing installation

Experimental Releases

Experimental releases will give you access to the latest updates and features, but these builds may contain bugs and lack documentation. Please let us know what you think of the experimental builds or notice any problems, we love to hear your feedback!

This section only details the latest experimental release. Follow this link for complete and more detailed release notes: Experimental Release Notes.

Notice: There are no experimental releases at the moment. The most up-to-date version is the stable release. Stay tuned for new experimental releases in the future!


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