Qt Quick 3D - XR Freeform Teleportation Example

Demonstrates how to make a simple locomotion in Qt Quick 3D XR.

Overview

This example shows how to move to places in the virtual environment using a simple freeform teleportation system.

Controls

When you run the example, use the following controls for navigation.

RotationLeft and Right stick on the right controller
Aim and TeleportForward stick on the right controller

Implementation

In this example the logic for the teleportation is contained within the FreeformTeleporter component for easy re-use in other projects.

FreeformTeleporter {
    id: teleporter

    rayPicker: xrView
    cameraOrigin: xrOrigin
    camera: xrOrigin.camera
    beamHandle: xrRightController
    onDoTeleportation: (cameraOriginPosition)=> {
                           xrOrigin.position = cameraOriginPosition
                       }
    onDoRotation: (cameraOriginRotation, cameraOriginPosition)=> {
                      xrOrigin.rotation = cameraOriginRotation
                      xrOrigin.position = cameraOriginPosition
                  }
}

The FreeformTeleporter component has the following properties that needs to be set:

var rayPicker

The rayPicker property can be any object that implements a rayPick method. In this example we are using the XrView's built-in ray picking method.

Node cameraOrigin

The cameraOrigin property is the center of the camera's local reference space. In Xr this will be the location where tracked items, like the camera, will be placed in relation to. We will therefore use the XrOrigin node as the cameraOrigin.

Node camera

The camera property contains the camera that that is used to render the scene. In our example we use the tracked XrCamera we created earlier.

Node beamHandle

The beamHandle property is the node that will be used as the start point for the teleportation beam. In our example we use the right controller xrRightController as the beamHandle.

Example project @ code.qt.io

See also Locomotion in Qt Quick 3D Xr.

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