Global Parameters (Pass 2)

This pass adds three parameters: two that back the next set of UI controls (batch target selection and randomise spread), and one facade parameter that exposes the filter cutoff to the user and to the DAW at a safe, usable range.

Open Patch Settings → Global Parameters as before and add the following parameters with the + button.

batchChangeTarget

Field	Value
Name	batchChangeTarget
Semantic type	Generic Int
Default value	0

This parameter tracks which per-step parameter is currently selected for batch editing — velocity, detune, filter, or wavetable position. The UI writes to it when the user picks a target; the step controls read it to know which value to display and edit. A default of 0 means no target selected.

randomizeRange

Field	Value
Name	randomizeRange
Semantic type	Generic Float
Default value	0.2

Controls how far the randomiser can deviate from each step’s current value. A value of 0.2 means ±20% of the full parameter range — enough variation to be interesting without completely overwriting the pattern.

externalCutoff

Add one more parameter via Patch Settings → Global Parameters:

Field	Value
Name	externalCutoff
Semantic type	Generic Float
Default value	0.25

The engine’s filter cutoff covers 20–6000 Hz — far too wide a range to expose directly as a user-facing control on a bass instrument. Rather than clamping the range inside the UI (which would break automation, since the DAW would still record and replay the full 0–1 range), a facade parameter is used. externalCutoff is the parameter the user and the DAW see; the RT script subscribes to it and converts it to the internal engine cutoff in real time.

The RT script changes that implement this conversion are covered in RT Scripting Pass 3.

Outline

• Global volume parameter
• Global delay send amount parameter
• Global reverb send amount parameter