/// <summary>
/// Handler when Mesh Request is complete.
/// Builds the mesh if available. Invokes the callbacks.
/// </summary>
/// <param name="result">Status of the request.</param>
/// <param name="meshData">Mesh Data, only valid when result is Ok.</param>
private void HandMeshRequestCallback(MLResult result, MLHandMeshing.Mesh meshData)
{
if (!result.IsOk)
{
Debug.LogErrorFormat("MLHandMeshingBehavior failed to request data. Reason : {0}", result);
MLHandMeshing.RequestHandMesh(HandMeshRequestCallback);
return;
}
_hasPendingRequest = false;
int numMeshes = (meshData.MeshBlock == null) ? 0 : meshData.MeshBlock.Length;
for (var i = 0; i < numMeshes; ++i)
{
MeshFilter meshFilter = null;
if (_meshFilters.Count < i + 1)
{
GameObject go = Instantiate(_meshBlockPrefab, transform, true);
meshFilter = go.GetComponent <MeshFilter>();
meshFilter.mesh = new Mesh();
_meshFilters.Add(meshFilter);
}
else
{
meshFilter = _meshFilters[i];
meshFilter.gameObject.SetActive(true);
meshFilter.mesh.Clear();
}
MeshRenderer renderer = meshFilter.GetComponent <MeshRenderer>();
renderer.material = _meshMaterial;
Mesh mesh = meshFilter.mesh;
mesh.vertices = meshData.MeshBlock[i].Vertex;
mesh.triangles = meshData.MeshBlock[i].Index;
if (_recalculateNormals)
{
mesh.RecalculateNormals();
}
meshFilter.mesh = mesh;
}
for (var j = numMeshes; j < _meshFilters.Count; ++j)
{
_meshFilters[j].gameObject.SetActive(false);
}
HandleCallbacks(result, meshData);
if (enabled)
{
MLHandMeshing.RequestHandMesh(HandMeshRequestCallback);
_hasPendingRequest = true;
}
}
/// <summary>
/// Invoke callbacks.
/// </summary>
/// <param name="result">Result</param>
/// <param name="meshData">Mesh Data</param>
private void HandleCallbacks(MLResult result, MLHandMeshing.Mesh meshData)
{
bool hasMeshData = false;
foreach (MLHandMeshing.Mesh.Block meshBlock in meshData.MeshBlock)
{
if (meshBlock.Vertex.Length > 0)
{
hasMeshData = true;
break;
}
}
if (!hasMeshData)
{
if (HandMeshFound)
{
if (OnHandMeshLost != null)
{
OnHandMeshLost(result, meshData);
}
HandMeshFound = false;
}
}
else
{
if (HandMeshFound)
{
if (OnHandMeshUpdated != null)
{
OnHandMeshUpdated(result, meshData);
}
}
else
{
if (OnHandMeshFound != null)
{
OnHandMeshFound(result, meshData);
}
HandMeshFound = true;
}
}
}
