ver. 4.2.2  
  Interpollation Controllers  
  - Interpolation Controller is one of many original AfterBurn features that allow better flexibility when it comes to procedural animation control.

- Each AFC and Gradient has an Interpolation Controller (IC) attached and allows user to choose how interpolation between parameters will be performed.

- AfterBurn includes several Interpolation Controllers: Particle Age, Particle Velocity, Emitter Distance, Object Distance, Expression and ThinkingParticles data channel.