/// <summary>
/// Update the submeshes corresponding to the single mesh with multiple face classifications into submeshes.
/// </summary>
/// <param name="meshFilter">The mesh filter for the base mesh with multiple face classifications.</param>
void UpdateMesh(MeshFilter meshFilter)
{
XRMeshSubsystem meshSubsystem = m_MeshManager.subsystem as XRMeshSubsystem;
if (meshSubsystem == null)
{
return;
}
var meshId = ExtractTrackableId(meshFilter.name);
var faceClassifications = meshSubsystem.GetFaceClassifications(meshId, Allocator.Persistent);
if (!faceClassifications.IsCreated)
{
return;
}
using (faceClassifications)
{
if (faceClassifications.Length <= 0)
{
return;
}
var meshFilters = m_MeshFrackingMap[meshId];
var baseMesh = meshFilter.sharedMesh;
for (int i = 0; i < k_NumClassifications; ++i)
{
var classifiedMeshFilter = meshFilters[i];
if (classifiedMeshFilter != null)
{
var classifiedMesh = classifiedMeshFilter.mesh;
ExtractClassifiedMesh(baseMesh, faceClassifications, (ARMeshClassification)i, classifiedMesh);
meshFilters[i].mesh = classifiedMesh;
}
}
}
}
/// <summary>
/// Break up a single mesh with multiple face classifications into submeshes, each with an unique and uniform mesh
/// classification.
/// </summary>
/// <param name="meshFilter">The mesh filter for the base mesh with multiple face classifications.</param>
void BreakupMesh(MeshFilter meshFilter)
{
XRMeshSubsystem meshSubsystem = m_MeshManager.subsystem as XRMeshSubsystem;
if (meshSubsystem == null)
{
return;
}
var meshId = ExtractTrackableId(meshFilter.name);
var faceClassifications = meshSubsystem.GetFaceClassifications(meshId, Allocator.Persistent);
if (!faceClassifications.IsCreated)
{
return;
}
using (faceClassifications)
{
if (faceClassifications.Length <= 0)
{
return;
}
Debug.Log("Before faceClassificationsList");
var faceClassificationsList = faceClassifications.Select(classification => allowedClassifications[classification]).ToList();
Debug.Log("After faceClassificationsList");
var parent = meshFilter.transform.parent;
MeshFilter[] meshFilters = new MeshFilter[k_NumClassifications];
meshFilters[0] = (m_FloorMeshPrefab == null) ? null : Instantiate(m_FloorMeshPrefab, parent);
meshFilters[1] = (m_WallMeshPrefab == null) ? null : Instantiate(m_WallMeshPrefab, parent);
meshFilters[2] = (m_TableMeshPrefab == null) ? null : Instantiate(m_TableMeshPrefab, parent);
foreach (var entry in meshFilters)
{
entry.GetComponent <MeshRenderer>().enabled = MeshVisualizationEnabled;
}
m_MeshFrackingMap[meshId] = meshFilters;
Debug.Log("Created meshFilters");
var baseMesh = meshFilter.sharedMesh;
for (int i = 0; i < k_NumClassifications; ++i)
{
var classifiedMeshFilter = meshFilters[i];
if (classifiedMeshFilter == null)
{
continue;
}
var classifiedMesh = classifiedMeshFilter.mesh;
ExtractClassifiedMesh(baseMesh, faceClassificationsList, allowedClassificationsList[i], classifiedMesh);
Debug.Log($"Extracted meshFilters for {allowedClassificationsList[i]}");
meshFilters[i].mesh = classifiedMesh;
meshFilters[i].GetComponent <MeshCollider>().sharedMesh = classifiedMesh;
}
}
}