Unreal Engine Blueprint API Reference > AR Augmented Reality > Trace Result
Perform a line trace against any real-world geometry as tracked by the AR system.
Target is ARBlueprint Library
Inputs
| Type | Name | Description |
|---|---|---|
| exec | In | |
| vector2d struct | Screen Coord | Coordinate of the point on the screen from which to cast a ray into the tracking space. |
| boolean | Test Feature Points | |
| boolean | Test Ground Plane | |
| boolean | Test Plane Extents | |
| boolean | Test Plane Boundary Polygon |
Outputs
| Type | Name | Description |
|---|---|---|
| exec | Out | |
| struct | Return Value | a list of \c FARTraceResult sorted by distance from camera. |