RealFlow

RealFlow is a fluid and dynamics simulation tool for the 3D and visual effects industry, developed by Next Limit Technologies in Madrid, Spain. This stand-alone application can be used in conjunction with other 3D programs to simulate fluids, water surfaces, fluid-solid interactions, rigid bodies, soft bodies and meshes. In 2008, Next Limit Technologies was awarded a Technical Achievement Award by the Academy of Motion Picture Arts and Sciences for their development of the RealFlow software and its contribution to the production of motion pictures.[1] In 2015, Next Limit Technologies announced the release of RealFlow Core for Cinema 4D.[2]

RealFlow
Realflow 2014 running on Windows 7
Developer(s)Next Limit Technologies
Initial release1998
Stable release
10.1.2.0162
Operating systemWindows, macOS, Linux
TypeFluid simulation, 3D computer graphics, computer physics engine
Websiterealflow.com

Overview

RealFlow technology uses particle based simulations.[3] These particles can be influenced in various ways by point-based nodes (daemons) which can do various tasks such as simulate gravity or recreate the vortex-like motion of a tornado. RealFlow can also simulate soft and rigid body collisions and interactions. The inclusion of Python scripting and C++ plug-ins allows users to program their own tools to improve RealFlow capabilities, adding control to most aspects of the RealFlow workflow including batch runs, events, daemons, waves and fluids.

The RealFlow Renderkit (RFRK)[4] is a set of tools designed to facilitate the rendering of fluids. The RFRK enables the generation of procedural geometry at render time and the rendering of individual fluid particles. With this interface, fluids can also be rendered as foam and spray.[5]

On July 30, 2015 RealFlow 2015 was released to the public. The main features in this major release include:

  • An increase in the quality of simulations.
  • New DYVERSO solvers and GPU acceleration.
  • Direct-to-render feature using Maxwell Render™.
  • Enhanced User Interface
  • More controllabitlity: new splines nodes, text tools, daemons falloff, crown daemon, and spreadsheets
  • DYVERSO solvers and rapid OpenVDB meshing speed up simulation times by 10x.

Plug-ins

RFConnect

RFConnect is a connectivity plugin between standalone RealFlow and DCC applications. The plugin is a successor of RF Connectivity and RF RenderKit (RFRK). The plugin supports following DCC applications: 3ds Max, Maya, Cinema 4D, and Houdini. The plugin is also available for Lightwave and Softimage but the development is currently not active.

RFCore

RFCore is a plugin for bringing RealFlow functionality to the DCC applications. The plugin supports following DCC applications: 3ds Max, Maya, and Cinema 4D.

Third-party plug-in developers

Next Limit lists three 3rd party plugins for Wetwork, IoSim and V-Motion.[6]

Version history
1998RealFlow 1.0
RealWave 1.0
RealFlow 1.2
1999RealFlow 1.3
2000RealWave 2.0
2001RealFlow 2.0
2002RealFlow 2.5
2004RealFlow 3.0
2006RealFlow 4.0
2010RealFlow 5.0
2012RealFlow 2012
2013RealFlow 2013
2014RealFlow 2014
2015RealFlow 2015
2016RealFlow 10
RealFlow | Cinema4D
2017RealFlow 10.1
RealFlow | Cinema4D 2.0
2018RealFlow | Cinema4D 2.5
RealFlow | Maya
RealFlow | 3ds Max
2019RealFlow | Cinema 4D 3.0
RealFlow 10.5

Features

RealFlow
  • Particle based solver (liquid, gas, elastic and particles)
  • Interaction bitmaps
  • Custom particle behaviour
  • UV data and weight maps
  • UV texture mapping
  • Automatic mesh generator
  • Force fields
  • Python / C++ plugins
  • Direct-to-render feature
  • OpenVDB meshing

Hybrido
  • Hybrid fluid solver technology to simulate large bodies of water with secondary effects such as splashes, foam, and mist

Caronte
  • Rigid/soft body dynamics solver
  • Mix animation and dynamics

RealWave
  • Physically accurate water surfaces

Python scripting / C++ plugins
  • Daemons
  • Waves
  • Fluids
  • Events
  • Batch runs

Dyverso Solvers
  • Drastic speed-up on simulations
  • Smooth layered meshes,

Use in industry

Motion Pictures[7]

Television series

Commercials

Video games

See also

References
  1. http://realflow.com/press/pressrelease_080108_eng.pdf
  2. http://us8.campaign-archive2.com/?u=93e97654d8b87061b3952414e&id=01bb6ba1e3&e=[UNIQID]
  3. http://lesterbanks.com/2013/10/realflow-large-scale-fluid-simulation-workflow-with-hybrido2-and-hyflip/
  4. http://www.cgchannel.com/2014/12/next-limit-releases-realflow-renderkit-2014/
  5. http://www.digitalmedia-world.com/VFX/realflow-renderkit-2014-meshes-particles-for-fluid-rendering
  6. Next Limit: Plugin Developers
  7. http://www.realflow.com/product/production/movies/
  8. "RF4: Fluids & dynamics simulation tool". Retrieved 2007-07-10.
  9. Next Limit Technologies. "Disney "World of Color" - by Motion Theory". Real Flow Case Studies. Archived from the original on 20 August 2011. Retrieved 9 September 2012.
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