Reactions User Guide



Download Windows Installer
Installation Instructions

System Requirements

  • Windows 8.1 or later
  • GPU simulation requires an Nvidia GPU with CUDA CC 3.5 or later (see
  • (optional) Cinema 4D R20 or later
  • (optional) Redshift v3.0.53 or newer.


  • [C4D] Added support for C4D R25.
  • [C4D] Added support for C4D R22.
  • [C4D] Show busy-indicator in status bar for long graph updates.
  • [C4D] Map C4D object enable switch to REA node bypass switch.
  • [C4D][UI] Report fatal startup errors to user in addition to logging them.
  • [DFG] Auto-connect new Voxelize nodes to existing Volume.
  • [Graph] Fixed incomplete node material setup in some cases.
  • [Graph] Fixed crash when quitting app during playback in some cases.
  • [Mesh] Viewport did not update right away when changing mesh file path.
  • [Rake] Build nodes in /create in parallel to reduce scene initialization times.
  • [UI] Added Help/Check for Updates.
  • [UI] Added busy-indicator in timeline.
  • [UI] Added several new icons.
  • [UI] Added new login dialog.
  • [UI] Added Examples menu.
  • [UI] Updated button styling.
  • [UI] Bring open dockable tabs to front when selecting from the Window.
  • [Viewport] Improved viewport playback speed in some cases.
  • [Viewport] Fixed error in some cases when simulating on non-display device of different architecture.