Virtual Input Modifier

1 min read

What’s this? #

Virtual Input Modifier a is class that allow you to modify the value of the virtual input. Works like the input modifiers on the Enhanced Input plugin. You’ll be able to invert the axes on a virtual joystick or invert the value returned for example.

Here are the modifiers integrated into Touch Interface Designer in version 2024.1.

Scalar (Virtual Input Scale) #

Allow you to scale the virtual input value

Scalar : Scale the raw value by this value (multiplier). Avoid negative values

Smooth (Virtual Input Turn Rate) #

Smooth virtual input value with delta time. Useful with Touch Region in joystick mode.

Turn Rate : Speed of movement

Negate (Virtual Input Negate) #

Invert positive value (ex: if X=1 and bX == true, so X=-1)

X : Invert X value
Y : Invert Y value

Swizzle (Virtual Input Swizzle Axis) #

Invert virtual input axis. X become Y and Y become X.

Curve (Virtual Input Curve) #

Scale virtual input value by curve.

Curve : Curve asset you want to use

How to modify value of Virtual Input Event at runtime? #

You can modify all variables that are public. Some modifiers may contain public functions that you can call. To retrieve a modifier on a virtual input, call the following node: Get Virtual Input Modifier by Class. You can then modify the variables you wish. Modifications will take effect at the next tick.

Create my own modifier #

You can create your own modifier by creating a class based on the Virtual Input Modifier class. This is best done in C++, but can also be done in blueprint. The disadvantage of blueprint is that private variables are displayed in the details panel.

Override ModifyRaw function and do something!