/// <summary>
/// Get the skeleton joints for the requested trackable identifier.
/// </summary>
/// <param name="trackableId">The human body trackable identifier for which to query.</param>
/// <param name="allocator">The memory allocator to use for the returned arrays.</param>
/// <param name="skeleton">The array of skeleton joints to update and returns.</param>
public override unsafe void GetSkeleton(TrackableId trackableId, Allocator allocator, ref NativeArray <XRHumanBodyJoint> skeleton)
{
int numJoints;
void *joints = NativeApi.UnityARKit_HumanBodyProvider_AcquireJoints(trackableId, out numJoints);
try
{
if (joints == null)
{
numJoints = 0;
}
if (!skeleton.IsCreated || (skeleton.Length != numJoints))
{
if (skeleton.IsCreated)
{
skeleton.Dispose();
}
skeleton = new NativeArray <XRHumanBodyJoint>(numJoints, allocator);
}
if (joints != null)
{
NativeArray <XRHumanBodyJoint> tmp = NativeArrayUnsafeUtility.ConvertExistingDataToNativeArray <XRHumanBodyJoint>(joints, numJoints, Allocator.None);
skeleton.CopyFrom(tmp);
}
}
finally
{
NativeApi.UnityARKit_HumanBodyProvider_ReleaseJoints(joints);
}
}