https://developers.google.cn/ar/reference/java/com/google/ar/core/CameraConfig.FacingDirection
CameraConfig.FacingDirection | ARCore | Google for Developers
arcoregoogledevelopers
https://drake.mit.edu/doxygen_cxx/structdrake_1_1systems_1_1sensors_1_1_camera_config_1_1_fov_degrees.html
Drake: CameraConfig::FovDegrees Struct Reference
drakestructreference
https://developers.google.com/ar/reference/java/com/google/ar/core/CameraConfig.FacingDirection?authuser=1
CameraConfig.FacingDirection | ARCore | Google for Developers
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