Reactions User Guide



Download Windows Installer
Installation Instructions

System Requirements

  • Windows 8.1 or later
  • Cinema 4D integration requires R20 through R23
  • GPU simulation requires an Nvidia GPU with CUDA CC 3.5 or later (see
  • Redshift integration in standalone app requires Redshift v3.0.36.
    Redshift in C4D is unaffected by this requirement.


  • [Advect] Fixed a dilation issue with multiple sub-steps advection.
  • [Advect] Improved scalar grid dilation to activate fewer blocks.
  • [C4D] Fixed hang in some cases when opening Graph Editor during playback.
  • [Examples] Fixed broken flocking_accelerated and fireworks examples.
  • [Framework] Fixed crash when shaders were missing from the installation directory.
  • [Graph] Fixed crash when importing multiple templates with common nodes.
  • [Nodes] Ported Add Scaled Vector node (Buoyancy) to Rake.
  • [ProjectVelocity] Improved velocity dilation and ported to Rake.
  • [Rake] Support static if in expressions.
  • [Rake] Support template members in extension declarations.
  • [Rake] Fixed a name lookup issue with private funcs declared in extensions.
  • [UI] Fixed: maximized app windows were restored incorrectly on multi-monitor setups in some cases.
  • [Voxelize] Support particle vector attributes as intensity modifiers.
  • [Voxelize] Added blend mode selection (Set, Max, Add, Mix).