# Custom Material Parameters

The widget automatically attempts to create Dynamic Material Instances (MIDs) for the brushes assigned to it.

If your materials contain specific parameters, the widget will update them every frame during the OnPaint cycle, allowing you to create advanced shaders (e.g. moving patterns, borders, tiling, etc.) that react to the bar's state.

# Exposed Parameters

Note

If the brush uses a standard texture, these parameters are simply ignored.
They are only relevant if a customized Material is used.

Parameter Name	Type	Description
`WidgetLocalRect`	`Vector4`	The local geometry of the widget. `X`, `Y`: Top-Left position `Z`, `W`: Width and Height
`WidgetMargins`	`Vector4`	The padding values set on the widget. `X`: Left `Y`: Top `Z`: Right `W`: Bottom
`WidgetProgress`	`Vector4`	Current fill status. `X`, `Y`: Fill Fraction (0.0 to 1.0) on X and Y axes. `Z`, `W`: Anchor point (0.0=Start, 0.5=Center, 1.0=End).
`WidgetPositive`	`Scalar`	Context-sensitive boolean flag. `1.0`: The specific bar (Preview/Fade) represents a "positive" delta (Healing/Gain). `0.0`: Represents a "negative" delta (Damage/Loss).