Parameters

In FMOD, RTPC is called Parameters but they are pretty much the same.

Labelled Parameters (Switch in Wwise)

In FMOD, labeled parameters function as switches in Wwise. While FMOD offers various parameter types, they are all float variables for the convenience.

Pressing Ctrl+8 opens a preset browser, resembling the game sync tab in Wwise.

labelled parameters.mp4

Here is the video of how to create a labelled parameters to define different materials.

Continuous Parameters

We use continuous parameters to smoothly move between different parts based on RTPC values.

To create these parameters, press Ctrl+8 to open the preset browser. Let's say we're transitioning between different areas in Env2D as an example.

Make as many parameters as you need. If you click on any of them, you'll see a deck:

Velocity (Dial): Velocity makes a parameter's current value gradually increase or decrease at a steady rate until it reaches the parameter's minimum or maximum value. This lets a parameter change over time, even if it's not set to a new value. Only user parameters can have velocity. Units: Units per second.

Asymmetric (Toggle Button): Turning on asymmetric seek speed lets you set different speeds for going up and down with a preset parameter. The speed going up applies when a parameter is set to a higher value, and the speed going down applies when it's set to a lower value.

Seek Speed (Dial): Seek speed makes the parameter's current value smoothly transition up or down at a fixed rate when it's set to a new value, instead of changing suddenly. This allows a parameter to change from one value to another seamlessly. If seek speed is set to instant, parameter value changes happen immediately. The seek speed dial only shows up in the deck if seek speed isn't asymmetric. Units: Units per second. One important thing I usually adjust is Seek Speed because it helps make transitions smoother.

Go back to your Event editor (Ctrl+1). Create an Env2D event with tracks of bed and multiple subzones. Set a loop region for looping as well.

Click + button next to Timeline to import your Parameters. In your parameter sheet, the timeline changes to the value of RTPCs.

Now, we are going to make a smooth transition in between subzones.

Add modulation by right clicking volume dial on your track.

Apply to all your parameter sheets.

The end result would be somewhat like this!

continuous parameters.mp4

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