> ## Documentation Index > Fetch the complete documentation index at: https://xrlive.mintlify.site/llms.txt > Use this file to discover all available pages before exploring further. # Slider > Float control with configurable range, default value, and optional audio-reactive mode A **Slider** exposes a draggable float value to the operator. The operator can move it within the configured range and the Blueprint receives the new value in real time through a bound event. *** ## Configuration Sliders are declared inside `UICategories` on the `xrlive_UIpanel` component. Set **Type** to `Xrlive Slider` and fill in the fields below. | Field | Type | Description | | ------------------ | ------ | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Name** | String | Unique ID of the control. Must match exactly (case and spaces) when referenced in Blueprint. | | **Tooltip** | String | Optional helper text shown to the operator on hover. | | **Audio Reactive** | Bool | Controls whether the audio-reactive toggle button on the slider is **enabled or disabled** in the operator panel. When enabled, the operator can activate or deactivate audio-reactive mode at runtime. When disabled, the button is non-interactive. | | **Default Value** | Float | The initial value the slider holds when the visual loads. Defaults to `0.0`. | | **Min Value** | Float | Lower bound of the slider range. Can be negative. Defaults to `0.0`. | | **Max Value** | Float | Upper bound of the slider range. Must be greater than Min Value. Defaults to `1.0`. | Min and Max are not required to be symmetric. A range of `-150` to `300`, or `0.5` to `2.0`, is perfectly valid. The only requirement is that **Max Value** is greater than **Min Value**. When **Audio Reactive** is enabled, an additional **Audio Reactive Settings** section appears with the following fields: | Field | Type | Description | | ---------------- | ----- | -------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Slider Scale** | Float | Multiplier applied to the incoming audio signal before it drives the slider value. A value of `1.0` uses the signal as-is; higher values amplify the response. | | **Beat Type** | Enum | The frequency band the slider reacts to. Options typically include `Bass`, `Mid`, and `High`, depending on the audio engine configuration. | | **Min Value** | Float | Lower bound of the slider range specifically during audio-reactive mode. Independent from the manual Min Value. | | **Max Value** | Float | Upper bound of the slider range specifically during audio-reactive mode. Independent from the manual Max Value. | *** ## Blueprint API ### Standard mode Use this wiring when **Audio Reactive** is disabled (default). Call `Find Control by Name` on the `xrlive_UIpanel` reference, passing the slider's **Name**. Feed the **Return Value** into `Bind Event to On Slider Value`. Create a **Custom Event** and connect it to the **Event** pin. Blueprint graph showing Xrlive Ulpanel reference connected to Find Control by Name, whose Return Value feeds the Target pin of Bind Event to On Slider Value. A Custom Event node named OnSliderValue_Event is connected to the Event pin. The custom event exposes two output pins: Control Name (string) and Value Modification (float).

Blueprint graph showing Xrlive Ulpanel reference connected to Find Control by Name, whose Return Value feeds the Target pin of Bind Event to On Slider Value. A Custom Event node named OnSliderValue_Event is connected to the Event pin. The custom event exposes two output pins: Control Name (string) and Value Modification (float).

The custom event exposes two output pins: | Pin | Type | Description | | ---------------------- | ------ | -------------------------------------------------------------------------------------------- | | **Control Name** | String | The name of the slider that fired the event. Useful when one event handles multiple sliders. | | **Value Modification** | Float | The current value of the slider, within the configured Min / Max range. | ### Audio Reactive mode When **Audio Reactive** is enabled on the slider, use `Bind Event to On Beat Button Click` instead. The event fires in sync with the audio beat signal rather than on operator drag. Blueprint graph showing Xrlive Ulpanel reference connected to Find Control by Name, whose Return Value feeds the Target pin of Bind Event to On Beat Button Click. A Custom Event node named OnBeatButtonClick_Event is connected to the Event pin and exposes a single Beat Data output pin.

Blueprint graph showing Xrlive Ulpanel reference connected to Find Control by Name, whose Return Value feeds the Target pin of Bind Event to On Beat Button Click. A Custom Event node named OnBeatButtonClick_Event is connected to the Event pin and exposes a single Beat Data output pin.

| Pin | Type | Description | | ------------- | ------ | ------------------------------------------------------------------------------ | | **Beat Data** | Struct | Contains the beat signal data delivered by the xRLive audio engine at runtime. | When **Audio Reactive** is enabled on a slider, both bindings should be wired: `Bind Event to On Slider Value` handles manual operator input, and `Bind Event to On Beat Button Click` handles the audio beat signal. The two events fire from independent sources and do not interfere with each other.