November 6, 2019 update:

There's a new open source Cardboard SDK for iOS and Android NDK that offers a streamlined API, improved device compatibility, and built-in viewer profile QR code scanning. A corresponding Unity package (SDK) is planned for a future release. We recommend that all developers actively building for Google Cardboard migrate (iOS, Android NDK) to the new Cardboard SDK.

October 15, 2019 update:

The Daydream View VR headset is no longer available for purchase. However, you can continue to use the existing Google VR SDK to update and distribute your apps to the Google Play Store, and make them available to users in the Daydream app.

gvr_recenter_event_data

#include <gvr_types.h>

Event data associated with a GVR_EVENT_RECENTER event, which indicates head tracking recentering.

Summary

(Controller recentering is signaled separately through gvr_controller_state_get_recentered().) The client may wish to handle this event to provide custom recentering logic.

Public attributes
`recenter_event_flags`	`gvr_flags`
`recenter_type`	`int32_t`
`start_space_from_tracking_space_transform`	`gvr_mat4f` The new transform that maps from headset's "sensor" space to the recentered "start" space.

Public attributes

recenter_event_flags

gvr_flags gvr_recenter_event_data::recenter_event_flags

recenter_type

int32_t gvr_recenter_event_data::recenter_type

start_space_from_tracking_space_transform

gvr_mat4f gvr_recenter_event_data::start_space_from_tracking_space_transform

The new transform that maps from headset's "sensor" space to the recentered "start" space.

This transform can also be retrieved by querying for the GVR_PROPERTY_RECENTER_TRANSFORM property.