Using sliders

Slider is a variable controller that allows users to change numerical values using a visual indicator between a minimum and a maximum value. A slider has two child nodes: a rail and a knob. As user moves the knob along the rail (within its bounding box) the slider generates messages: drag started, drag finished, and value changed.

To give a slider a visual shape, you have to attach a mesh to the slider rail and knob.

Creating a slider

To create a slider:

1. In the Project right-click the scene where you want to create a slider and select Create > Slider.
2. In the Project expand the slider and add a mesh to the Rail and Knob nodes. Since the Knob moves along the Rail, make the Rail longer than the Knob.
   For example, for the Rail, create a Box and increase its Width. For the Knob, create a Sphere.
3. In the Project select the slider and in the Properties set:
   • Slider Value property to the initial position of the knob on the rail.
   • Slider Minimum Value property to define the lowest value of the knob.
   • Slider Maximum Value property to define the highest value of the knob.
   In the Preview you can now click and drag the knob along the rail.

See also

Using bindings

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