/// <summary>
/// Draws marker visualizations in the editor viewport for any selected OptitrackRigidBody component.
/// </summary>
void OnSceneGUI()
{
OptitrackRigidBody rb = target as OptitrackRigidBody;
if (!rb || rb.StreamingClient == null)
{
return;
}
rb.StreamingClient._EnterFrameDataUpdateLock();
try
{
OptitrackRigidBodyDefinition rbDef = rb.StreamingClient.GetRigidBodyDefinitionById(rb.RigidBodyId);
OptitrackRigidBodyState rbState = rb.StreamingClient.GetLatestRigidBodyState(rb.RigidBodyId);
if (rbDef != null && rbState != null)
{
for (int iMarker = 0; iMarker < rbDef.Markers.Count; ++iMarker)
{
OptitrackRigidBodyDefinition.MarkerDefinition marker = rbDef.Markers[iMarker];
// Effectively treat the RB GameObject transform as a rigid transform by negating its local scale.
Vector3 markerPos = marker.Position;
markerPos.Scale(new Vector3(1.0f / rb.transform.localScale.x, 1.0f / rb.transform.localScale.y, 1.0f / rb.transform.localScale.z));
markerPos = rb.transform.TransformPoint(markerPos);
float kMarkerSize = 0.02f;
Matrix4x4 markerTransform = Matrix4x4.TRS(markerPos, Quaternion.identity, new Vector3(kMarkerSize, kMarkerSize, kMarkerSize));
for (int iPass = 0; iPass < m_markerMaterial.passCount; ++iPass)
{
if (m_markerMaterial.SetPass(iPass))
{
Graphics.DrawMeshNow(m_markerMesh, markerTransform);
}
}
}
}
}
finally
{
rb.StreamingClient._ExitFrameDataUpdateLock();
}
}
/// <summary>Request data descriptions from the host, then update our definitions.</summary>
/// <exception cref="NatNetException">
/// Thrown by <see cref="NatNetClient.GetDataDescriptions"/> if the request to the server fails.
/// </exception>
public void UpdateDefinitions()
{
// This may throw an exception if the server request times out or otherwise fails.
m_dataDescs = m_client.GetDataDescriptions();
m_rigidBodyDefinitions.Clear();
m_skeletonDefinitions.Clear();
// Translate rigid body definitions.
for (int nativeRbDescIdx = 0; nativeRbDescIdx < m_dataDescs.RigidBodyDescriptions.Count; ++nativeRbDescIdx)
{
sRigidBodyDescription nativeRb = m_dataDescs.RigidBodyDescriptions[nativeRbDescIdx];
OptitrackRigidBodyDefinition rbDef = new OptitrackRigidBodyDefinition {
Id = nativeRb.Id,
Name = nativeRb.Name,
Markers = new List <OptitrackRigidBodyDefinition.MarkerDefinition>(nativeRb.MarkerCount),
};
// Populate nested marker definitions.
for (int nativeMarkerIdx = 0; nativeMarkerIdx < nativeRb.MarkerCount; ++nativeMarkerIdx)
{
int positionOffset = nativeMarkerIdx * Marshal.SizeOf(typeof(MarkerDataVector));
IntPtr positionPtr = new IntPtr(nativeRb.MarkerPositions.ToInt64() + positionOffset);
int labelOffset = nativeMarkerIdx * Marshal.SizeOf(typeof(Int32));
IntPtr labelPtr = new IntPtr(nativeRb.MarkerRequiredLabels.ToInt64() + labelOffset);
MarkerDataVector nativePos =
(MarkerDataVector)Marshal.PtrToStructure(positionPtr, typeof(MarkerDataVector));
Int32 nativeLabel = Marshal.ReadInt32(labelPtr);
OptitrackRigidBodyDefinition.MarkerDefinition markerDef =
new OptitrackRigidBodyDefinition.MarkerDefinition {
Position = new Vector3(nativePos.Values[0], nativePos.Values[1], nativePos.Values[2]),
RequiredLabel = nativeLabel,
};
rbDef.Markers.Add(markerDef);
}
m_rigidBodyDefinitions.Add(rbDef);
}
// Translate skeleton definitions.
for (int nativeSkelDescIdx = 0; nativeSkelDescIdx < m_dataDescs.SkeletonDescriptions.Count; ++nativeSkelDescIdx)
{
sSkeletonDescription nativeSkel = m_dataDescs.SkeletonDescriptions[nativeSkelDescIdx];
OptitrackSkeletonDefinition skelDef = new OptitrackSkeletonDefinition {
Id = nativeSkel.Id,
Name = nativeSkel.Name,
Bones = new List <OptitrackSkeletonDefinition.BoneDefinition>(nativeSkel.RigidBodyCount),
};
// Populate nested bone definitions.
for (int nativeBoneIdx = 0; nativeBoneIdx < nativeSkel.RigidBodyCount; ++nativeBoneIdx)
{
sRigidBodyDescription nativeBone = nativeSkel.RigidBodies[nativeBoneIdx];
OptitrackSkeletonDefinition.BoneDefinition boneDef =
new OptitrackSkeletonDefinition.BoneDefinition {
Id = nativeBone.Id,
ParentId = nativeBone.ParentId,
Name = nativeBone.Name,
Offset = new Vector3(-nativeBone.OffsetX, nativeBone.OffsetY, nativeBone.OffsetZ),
};
skelDef.Bones.Add(boneDef);
}
m_skeletonDefinitions.Add(skelDef);
}
}