Similar to this request: https://feedback.vrchat.com/android/p/a-way-to-raycast-from-touch-position-on-mobile We can use VRCCameraSettings.ScreenCamera.Position and VRCCameraSettings.ScreenCamera.Forward to construct a ray that corresponds to a desktop user's reticle, but there's seemingly no way to keep this up for a user's cursor when they're in free mouse mode (Tab).