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.


  • [Docs] Added Nodes/Voxelize page.
  • [Docs] Added Volume Grid/Channels section.
  • [Particles] Fixed crash in some cases when simulating particles without velocity.
  • [Particles] Fixed crash in some cases after memory allocation failure.
  • [Particles] Changed min/max params in vector/range samplers to value/deviation for floating point types.
  • [Rake] Fixed: symbol-not-found error was given in some cases io. no-matching-overload.
  • [Rake] Fixed: use of 'size' member on array constants incorrectly caused an error.
  • [Rake] Fixed: global device variables with non-trivial deinit caused crash io. error.
  • [Rake] Null-ref runtime check for module parameters did not handle optional refs correctly.
  • [Rake] Lib: added Collections.ArrayView
  • [Rake] Fixed: incorrect calling convention used at the call site in some cases.
  • [Rake] Support constants of struct types.
  • [Rake] Support @unroll attribute on for-loops.
  • [Rake] Support const declarations on struct level.
  • [UI] Create missing parent folders when rendering viewport image sequence.
  • [UI] Use mouse wheel input for Number, Slider, Curve elements only if control is pressed.
  • [Viewport] Ported volume renderer to Rake.
  • [Viewport] Support all volume material options in viewport render.
  • [Volume] Fixed crash in some cases when switching between GPUs of different architecture during playback.
  • [VolumeMaterial] Disable remap/intensity parameters when dependent channel is None.