Skip to main content
Version: 0.11.0

UeMouse

A global (UE_MOUSE) utility class for retrieving mouse coordinates in game-space and Normalized Device Coordinates (NDC). Mostly used internally for raycasting and camera transforming.

Constructor​

new UeMouse()

Properties​

PropertiesDefaultDescription
view0The viewport index from which to retrieve mouse coordinates.

Methods​

MethodDescription
get()Returns an object with mouse coordinates adjusted to the viewport. Also includes normalized device coordinates (NDC).
worldToScreen(worldPos, camera)Projects a 3D world-space position to 2D screen coordinates.
screenToWorld(screenX, screenY, camera, depth)Unprojects screen coordinates into a 3D world-space position.

get()​

Returns an object containing:

  • x, y: Screen coordinates adjusted to the viewport.
  • ndcX, ndcY: Normalized Device Coordinates in range [-1, 1].

worldToScreen(worldPos, camera)​

Projects a 3D world-space position to 2D screen coordinates.

  • worldPos: The 3D position in world space.
  • camera: The camera object used for projection.

Returns: A struct {x, y} with screen coordinates, or undefined if the point is outside the viewing frustum.

screenToWorld(screenX, screenY, camera, depth = 0)​

Unprojects screen coordinates into a 3D world-space position.

  • screenX, screenY: The screen coordinates.
  • camera: The camera object used for unprojection.
  • depth: The depth (usually -1 to 1 or 0 to 1 depending on the platform) to unproject at. Default is 0.

Returns: A new 3D vector in world space.