1. First steps in Reaktor Core - Native Instruments

4.4. Building an event accumulator
The event accumulator module that we want to build now is going to have two
inputs: one for the event values to be accumulated, and one for resetting the
accumulator to zero. There is also going to be one output, which outputs the
sum of the accumulated events.
We are going to build this module in the form of a core macro, which would
be easy to use inside an event core cell:
This is what the inside of our macro looks like:
Obviously the accumulator module needs to have an internal state where
it’s going to store its current accumulated value. We are going to use Read
and Write modules to build the accumulator loop. They can be found in the
Built-In Module > Memory submenu:
The module which you see on the left (with an arrow pointing outwards) is
the Read module and the module on the right (arrow pointing inwards) in the
Write module.
In response to an incoming event, the accumulator loop should take the current
value and add the new value to it. Therefore, we have to use a Read module
to retrieve the current state, use an adder to add the new value, and use a
Write module to store the sum.
REAKTOR CORE – 75