Reactions User Guide



Download Windows Installer
Installation Instructions

System Requirements

  • Windows 8.1 or later
  • Cinema 4D integration requires R20 or later
  • 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] Added 'Semi-Lagrangian Linear' advection and 'Euler' tracer methods.
  • [Advect] Fixed bias in 'Semi-Lagrangian Cubic' method.
  • [Nodes] Exported Combustion node from Explosion template.
  • [Rake] Support compile-time evaluation of type properties.
  • [Rake] Use type precedence for implicit constant conversions to resolve overloads further.
  • [Rake] Added IO.File module.
  • [Rake] Added String module and in-memory string interpolation.
  • [ProjectVelocity] Made divergence control remapping optional.
  • [Templates] Updated Explosion template to new Turbulence parameterization.
  • [Turbulence] Ported from CUDA to Rake.
  • [Turbulence] Replaced remap with range.
  • [Turbulence] Fixed false correlation in underlying noise.
  • [UI] Added Node Config tab.
  • [UI] Added icon config for Rake nodes.
  • [UI] Fixed: Node label did not focus LineEdit on double click.
  • [UI] Fixed: Ctrl+S shortcut in Source Editor did not save unless scene was modified.
  • [UI] Fixed: Volume channel selection was not loaded correctly.
  • [UI] Fixed: Spline was not drawn in FCurveEditor.
  • [UI] Added pixel snapping for scaled screen resolutions.
  • [UI] Updated several icons.
  • [VolumeMaterial] Allow selecting vector components as density channel.
  • [VolumeMaterial] Constrain mapping curve UI to valid region.