UI

Displays a UI plane in-world

const ui = app.create('ui')
ui.backgroundColor = 'rgba(0, 0, 0, 0.5)'

Properties

.space: String

Whether this UI should be rendered in world space or screen space. When world, a plane geometry is physically placed in the world. When screen, the canvas is drawn directly on the screen. Defaults to world.

NOTE: when using screen, the .position value now represents a ratio from 0 to 1 on each axis. For example position.x = 1 is the far right of the screen and position.x = 0 is the far left. Use this in combination with the pivot and offset values.

/**
 * Example:
 * The following screen-space UI is rendered in the top left of the
 * screen, 20px away from both edges.
*/
const ui = app.create('ui', {
  space: 'screen',
  pivot: 'top-right',
  position: [1, 0, 0] // far right
  offset: [-20, 20, 0] // 20px left, 20px down
})

.width: Number

The width of the UI canvas in pixels. Defaults to 100.

.height: Number

The height of the UI canvas in pixels. Defaults to 100.

.size: Number

This value converts pixels to meters. For example if you set width = 100 and size = 0.01 your UI will have a width of one meter. This allows you to build UI while thinking in pixels instead of meters, and makes it easier to resize things later. Defaults to 0.01.

.lit: Boolean

Whether the canvas is affected by lighting. Defaults to false.

.doubleside: Boolean

Whether the canvas is doublesided. Defaults to false.

.billboard: String

Makes the UI face the camera. Can be none, full or y. Default to none.

.pivot: String

Determines where the “center” of the UI is. Options are: top-left, top-center, top-right, center-left, center, center-right, bottom-left, bottom-center, bottom-right. Defaults to center.

.offset: Vector3

Only applicable when using screen-space. The offset in pixels applied after the position value.

.pointerEvents: Boolean

Whether the UI should receive or ignore pointer events. Defaults to true. If you are building informational screen-space UI that does not need to respond to pointer events, this should be set to false for an improved user experience.

.backgroundColor: String

The background color of the UI. Can be hex (eg #000000) or rgba (eg rgba(0, 0, 0, 0.5)). Defaults to null.

.borderWidth: Number

The width of the border in pixels.

.borderColor: String

The color of the border.

.borderRadius: Number

The radius of the border in pixels.

.padding: Number

The inner padding of the UI in pixels. Defaults to 0.

.flexDirection: String

The flex direction. column, column-reverse, row or row-reverse. Defaults to column.

.justifyContent: String

Options: flex-start, flex-end, center. Defaults to flex-start.

.alignItems: String

Options: stretch, flex-start, flex-end, center, baseline. Defaults to stretch.

.alignContent: String

Options: flex-start, flex-end, stretch, center, space-between, space-around, space-evenly. Defaults to flex-start.

.flexWrap: String

Options: no-wrap, wrap. Defaults to no-wrap.

.gap: Number

Defaults to 0.

.{...Node}

Inherits all Node properties