pub unsafe extern "C" fn graphene_quaternion_to_angle_vec3(
q: *const graphene_quaternion_t,
angle: *mut c_float,
axis: *mut graphene_vec3_t,
)
pub unsafe extern "C" fn graphene_quaternion_to_angle_vec3(
q: *const graphene_quaternion_t,
angle: *mut c_float,
axis: *mut graphene_vec3_t,
)