/// <summary>
/// Overridden to read optional point cloud indices.
/// </summary>
/// <param name="msg">Message header.</param>
/// <param name="packet">Data packet.</param>
/// <param name="reader">Data packet reader.</param>
/// <returns></returns>
protected override Error HandleMessage(DataMessage msg, PacketBuffer packet, BinaryReader reader)
{
ShapeCache cache = (msg.ObjectID == 0) ? _transientCache : _shapeCache;
int shapeIndex = (msg.ObjectID == 0) ? _lastTransientIndex : cache.GetShapeIndex(msg.ObjectID);
if (shapeIndex < 0)
{
return(new Error(ErrorCode.InvalidObjectID, msg.ObjectID));
}
PointsComponent pointsComp = cache.GetShapeDataByIndex <PointsComponent>(shapeIndex);
// Read index offset and count.
uint offset = reader.ReadUInt32();
uint count = reader.ReadUInt32();
int[] indices = pointsComp.Indices;
for (uint i = 0; i < count; ++i)
{
indices[i + offset] = reader.ReadInt32();
}
pointsComp.IndicesDirty = true;
if (pointsComp.IndexCount != 0 && offset + count >= pointsComp.IndexCount)
{
// Done. Register for the mesh.
RegisterForMesh(pointsComp);
}
return(new Error());
}
/// <summary>
/// Overridden to read information about mesh parts.
/// </summary>
/// <param name="msg"></param>
/// <param name="packet"></param>
/// <param name="reader"></param>
/// <returns></returns>
protected override Error PostHandleMessage(CreateMessage msg, PacketBuffer packet, BinaryReader reader,
ShapeCache cache, int shapeIndex)
{
// Read additional attributes.
PointsComponent pointsComp = new PointsComponent();
// Read the mesh ID to render points from.
pointsComp.MeshID = reader.ReadUInt32();
// Read the number of indices (zero implies show entire mesh).
pointsComp.IndexCount = reader.ReadUInt32();
if (packet.Header.VersionMajor == 0 && packet.Header.VersionMinor == 1)
{
// Legacy support.
pointsComp.PointScale = (float)reader.ReadByte();
}
else
{
pointsComp.PointScale = reader.ReadSingle();
}
cache.SetShapeDataByIndex(shapeIndex, pointsComp);
if (pointsComp.IndexCount == 0)
{
pointsComp.IndicesDirty = false;
// Not expecting any index data messages.
// Register the mesh now.
RegisterForMesh(pointsComp);
}
return(new Error());
}
/// <summary>
/// Overridden to read information about mesh parts.
/// </summary>
/// <param name="msg"></param>
/// <param name="packet"></param>
/// <param name="reader"></param>
/// <returns></returns>
protected override Error HandleMessage(CreateMessage msg, PacketBuffer packet, BinaryReader reader)
{
GameObject obj = null;
if (msg.ObjectID == 0)
{
// Cannot support transient objects: we need to get point data through additional
// messages which requires a valid object id.
return(new Error(ErrorCode.InvalidObjectID, 0));
}
else
{
obj = CreateObject(msg.ObjectID);
if (!obj)
{
// Object already exists.
return(new Error(ErrorCode.DuplicateShape, msg.ObjectID));
}
}
ShapeComponent shapeComp = obj.GetComponent <ShapeComponent>();
if (shapeComp)
{
shapeComp.Category = msg.Category;
shapeComp.ObjectFlags = msg.Flags;
shapeComp.Colour = ShapeComponent.ConvertColour(msg.Attributes.Colour);
}
obj.transform.SetParent(Root.transform, false);
DecodeTransform(msg.Attributes, obj.transform);
// Read additional attributes.
PointsComponent pointsComp = obj.AddComponent <PointsComponent>();
// Read the mesh ID to render points from.
pointsComp.MeshID = reader.ReadUInt32();
// Read the number of indices (zero implies show entire mesh).
pointsComp.IndexCount = reader.ReadUInt32();
pointsComp.PointSize = reader.ReadByte();
if (pointsComp.IndexCount == 0)
{
// Not expecting any index data messages.
// Register the mesh now.
RegisterForMesh(pointsComp);
}
return(new Error());
}
/// <summary>
/// Creates a point cloud shape for serialising <paramref name="shapeComponent"/> and its point data.
/// </summary>
/// <param name="shapeComponent">The component to create a shape for.</param>
/// <returns>A shape instance suitable for configuring to generate serialisation messages.</returns>
protected override Shapes.Shape CreateSerialisationShape(ShapeCache cache, int shapeIndex, CreateMessage shapeData)
{
PointsComponent pointsComp = cache.GetShapeDataByIndex <PointsComponent>(shapeIndex);
Shapes.PointCloudShape points = new Shapes.PointCloudShape(new MeshResourcePlaceholder(pointsComp.MeshID),
shapeData.ObjectID,
shapeData.Category,
pointsComp.PointScale);
points.SetAttributes(shapeData.Attributes);
if (pointsComp.IndexCount > 0)
{
points.SetIndices(pointsComp.Indices);
}
return(points);
}
/// <summary>
/// Post destroy message: destroy sub-objects.
/// </summary>
/// <param name="obj"></param>
/// <param name="msg"></param>
/// <param name="packet"></param>
/// <param name="reader"></param>
/// <returns></returns>
protected override Error PostHandleMessage(GameObject obj, DestroyMessage msg, PacketBuffer packet, BinaryReader reader)
{
PointsComponent points = obj.GetComponent <PointsComponent>();
if (points != null)
{
// Remove the registered parts.
List <PointsComponent> parts = null;
if (_registeredParts.TryGetValue(points.MeshID, out parts))
{
// Remove from parts.
parts.Remove(points);
_awaitingFinalisation.RemoveAll((PointsComponent cmp) => { return(cmp == points); });
//parts.RemoveAll((PointsComponent cmp) => { return cmp == part; }));
}
}
return(new Error());
}
/// <summary>
/// Post destroy message: destroy sub-objects.
/// </summary>
/// <param name="obj"></param>
/// <param name="msg"></param>
/// <param name="packet"></param>
/// <param name="reader"></param>
/// <returns></returns>
protected override Error PostHandleMessage(DestroyMessage msg, ShapeCache cache, int shapeIndex)
{
PointsComponent pointsComp = cache.GetShapeDataByIndex <PointsComponent>(shapeIndex);
if (pointsComp != null)
{
// Remove from the registered mesh list.
List <PointsComponent> parts;
if (_registeredParts.TryGetValue(pointsComp.MeshID, out parts))
{
// Remove from the list.
parts.RemoveAll((PointsComponent cmp) => { return(cmp == pointsComp); });
}
pointsComp.Release();
}
return(new Error());
}
/// <summary>
/// Creates a point cloud shape for serialising <paramref name="shapeComponent"/> and its point data.
/// </summary>
/// <param name="shapeComponent">The component to create a shape for.</param>
/// <returns>A shape instance suitable for configuring to generate serialisation messages.</returns>
protected override Shapes.Shape CreateSerialisationShape(ShapeComponent shapeComponent)
{
PointsComponent pointsComp = shapeComponent.GetComponent <PointsComponent>();
if (pointsComp != null)
{
ObjectAttributes attr = new ObjectAttributes();
EncodeAttributes(ref attr, shapeComponent.gameObject, shapeComponent);
Shapes.PointCloudShape points = new Shapes.PointCloudShape(new MeshResourcePlaceholder(pointsComp.MeshID),
shapeComponent.ObjectID,
shapeComponent.Category,
(byte)pointsComp.PointSize);
points.SetAttributes(attr);
return(points);
}
return(null);
}
/// <summary>
/// Overridden to read optional point cloud indices.
/// </summary>
/// <param name="msg">Message header.</param>
/// <param name="packet">Data packet.</param>
/// <param name="reader">Data packet reader.</param>
/// <returns></returns>
protected override Error HandleMessage(DataMessage msg, PacketBuffer packet, BinaryReader reader)
{
GameObject obj = null;
if (msg.ObjectID != 0)
{
obj = FindObject(msg.ObjectID);
}
else
{
obj = _transientCache.LastObject;
}
if (obj == null)
{
return(new Error(ErrorCode.InvalidObjectID, msg.ObjectID));
}
// Read index offset and count.
uint offset = reader.ReadUInt32();
uint count = reader.ReadUInt32();
PointsComponent pointsComp = obj.GetComponent <PointsComponent>();
int[] indices = pointsComp.Indices;
for (uint i = 0; i < count; ++i)
{
indices[i + offset] = reader.ReadInt32();
}
if (pointsComp.IndexCount != 0 && offset + count >= pointsComp.IndexCount)
{
// Done. Register for the mesh.
RegisterForMesh(pointsComp);
}
return(new Error());
}
protected virtual void BindMaterial(PointsComponent points)
{
// Select the material by topology.
Material material = new Material(_pointsMaterial);
if (points.Mesh.Mesh.HasColours)
{
material.EnableKeyword("WITH_COLOURS_UINT");
}
if (points.Mesh.Mesh.HasNormals)
{
material.EnableKeyword("WITH_NORMALS");
}
if (material.HasProperty("_LeftHanded"))
{
material.SetInt("_LeftHanded", ServerInfo.IsLeftHanded ? 1 : 0);
}
if (material.HasProperty("_PointSize"))
{
float pointScale = (points.PointScale > 0) ? points.PointScale : 1.0f;
material.SetFloat("_PointSize", GlobalSettings.PointSize * pointScale);
}
if (material.HasProperty("_Color"))
{
material.SetColor("_Color", points.Colour);
}
if (material.HasProperty("_Tint"))
{
material.SetColor("_Tint", points.Mesh.Tint);
}
points.Material = material;
}
/// <summary>
/// Register <paramref name="points"/> for mesh resolving.
/// </summary>
/// <remarks>
/// The mesh is either resolved now, or on mesh finalisation.
/// Note that any limited indexing must be completed before calling
/// this function. That is <see cref="PointsComponent.Indices"/>
/// must have been resolved.
/// </remarks>
/// <param name="points">The points component.</param>
protected void RegisterForMesh(PointsComponent points)
{
List <PointsComponent> parts = null;
if (!_registeredParts.TryGetValue(points.MeshID, out parts))
{
// Add new list.
parts = new List <PointsComponent>();
_registeredParts.Add(points.MeshID, parts);
}
parts.Add(points);
// Try resolve the mesh from the cache now.
if (_meshCache != null)
{
MeshCache.MeshDetails meshDetails = _meshCache.GetEntry(points.MeshID);
if (meshDetails != null && meshDetails.Finalised)
{
points.MeshDirty = true;
_awaitingFinalisation.Add(points);
}
}
}
/// <summary>
/// Set the visuals of <pararef name="points"/> to use <paramref name="meshDetails"/>.
/// </summary>
/// <param name="points">The points object</param>
/// <param name="meshDetails">The mesh details.</param>
/// <remarks>
/// Adds multiple children to <paramref name="points"/> when <paramref name="meshDetails"/>
/// contains multiple mesh objects.
/// </remarks>
protected virtual void SetMesh(PointsComponent points, MeshCache.MeshDetails meshDetails)
{
ShapeComponent shape = points.GetComponent <ShapeComponent>();
// Clear all children as a hard reset.
foreach (Transform child in points.GetComponentsInChildren <Transform>())
{
if (child.gameObject != points.gameObject)
{
child.parent = null;
GameObject.Destroy(child.gameObject);
}
}
// Use shared resources if we have no limited indexing.
if (points.IndexCount == 0)
{
// Add children for each mesh sub-sub-part.
int partNumber = 0;
foreach (Mesh mesh in meshDetails.FinalMeshes)
{
GameObject partMesh = new GameObject(string.Format("cloud{0}", partNumber));
partMesh.transform.localPosition = meshDetails.LocalPosition;
partMesh.transform.localRotation = meshDetails.LocalRotation;
partMesh.transform.localScale = meshDetails.LocalScale;
partMesh.AddComponent <MeshFilter>().sharedMesh = mesh;
MeshRenderer renderer = partMesh.AddComponent <MeshRenderer>();
if (meshDetails.Topology == MeshTopology.Points)
{
// Use mesh material as is.
renderer.material = meshDetails.Material;
}
else
{
// Rendering a mesh with non-point topology. Set tha points based material.
renderer.material = mesh.normals.Length > 0 ? _litMaterial : _unlitMaterial;
}
int pointSize = points.PointSize;
if (pointSize == 0 && Materials != null)
{
pointSize = Materials.DefaultPointSize;
}
renderer.material.SetInt("_PointSize", pointSize);
renderer.material.SetInt("_LeftHanded", ServerInfo.IsLeftHanded ? 1 : 0);
renderer.material.color = (shape != null) ? shape.Colour : new Color32(255, 255, 255, 255);
partMesh.transform.SetParent(points.transform, false);
++partNumber;
}
}
else
{
// We are going to need to remap the indexing. For this we'll
// copy the required vertices from the MeshDetails and create new
// meshes with new indices. We could potentially share vertex data,
// but this is difficult with the Unity vertex count limit.
Mesh[] meshes = meshDetails.Builder.GetReindexedMeshes(points.Indices, MeshTopology.Points);
for (int i = 0; i < meshes.Length; ++i)
{
// Create this mesh piece.
bool defaultMaterial = meshDetails.Topology == MeshTopology.Points;
Material material = (defaultMaterial) ? meshDetails.Material : _unlitMaterial;
if (!defaultMaterial && meshDetails.Builder.Normals.Length != 0)
{
material = _litMaterial;
}
GameObject child = new GameObject();
child.AddComponent <MeshFilter>().mesh = meshes[i];
material.SetInt("_PointSize", points.PointSize);
material.SetInt("_LeftHanded", ServerInfo.IsLeftHanded ? 1 : 0);
child.AddComponent <MeshRenderer>().material = material;
child.transform.SetParent(points.transform, false);
}
}
}
void RenderPoints(CameraContext cameraContext, ShapeCache cache, int shapeIndex)
{
CreateMessage shape = cache.GetShapeByIndex(shapeIndex);
if (CategoriesState != null && !CategoriesState.IsActive(shape.Category))
{
return;
}
Matrix4x4 modelWorld = cameraContext.TesSceneToWorldTransform * cache.GetShapeTransformByIndex(shapeIndex);
PointsComponent points = cache.GetShapeDataByIndex <PointsComponent>(shapeIndex);
CommandBuffer renderQueue = cameraContext.OpaqueBuffer;
RenderMesh mesh = points.Mesh != null ? points.Mesh.Mesh : null;
if (mesh == null)
{
// No mesh.
Debug.LogWarning($"Point cloud shape {shape.ObjectID} missing mesh with ID {points.MeshID}");
return;
}
if (points.Material == null)
{
// No mesh.
Debug.LogWarning($"Point cloud shape {shape.ObjectID} missing material");
return;
}
// Check rendering with index buffer?
GraphicsBuffer indexBuffer = null;
int indexCount = 0;
if (mesh.IndexCount > 0 || points.IndexCount > 0)
{
if ((int)points.IndexCount > 0)
{
indexBuffer = points.IndexBuffer;
indexCount = (int)points.IndexCount;
}
// We only use the mesh index buffer if the mesh has points topology.
// Otherwise we convert to points using vertices as is.
else if (mesh.Topology == MeshTopology.Points)
{
indexBuffer = mesh.IndexBuffer;
indexCount = mesh.IndexCount;
}
}
if (mesh.HasColours)
{
points.Material.SetBuffer("_Colours", mesh.ColoursBuffer);
}
if (mesh.HasNormals)
{
points.Material.SetBuffer("_Normals", mesh.NormalsBuffer);
}
points.Material.SetBuffer("_Vertices", mesh.VertexBuffer);
// Set min/max shader values.
if (points.Material.HasProperty("_BoundsMin"))
{
points.Material.SetVector("_BoundsMin", points.Mesh.Mesh.MinBounds);
}
if (points.Material.HasProperty("_BoundsMax"))
{
points.Material.SetVector("_BoundsMax", points.Mesh.Mesh.MaxBounds);
}
float pointScale = (points.PointScale > 0) ? points.PointScale : 1.0f;
points.Material.SetFloat("_PointSize", GlobalSettings.PointSize * pointScale);
// Colour by height if we have a zero colour value.
if (shape.Attributes.Colour == 0)
{
points.Material.SetColor("_Color", Color.white);
points.Material.SetColor("_BackColour", Color.white);
switch (CoordinateFrameUtil.AxisIndex(ServerInfo.CoordinateFrame, 2))
{
case 0:
points.Material.EnableKeyword("WITH_COLOURS_RANGE_X");
break;
case 1:
points.Material.EnableKeyword("WITH_COLOURS_RANGE_Y");
break;
default:
case 2:
points.Material.EnableKeyword("WITH_COLOURS_RANGE_Z");
break;
}
}
if (mesh.IndexBuffer != null)
{
renderQueue.DrawProcedural(mesh.IndexBuffer, modelWorld, points.Material, 0, mesh.Topology, mesh.IndexCount);
}
else
{
renderQueue.DrawProcedural(modelWorld, points.Material, 0, mesh.Topology, mesh.VertexCount);
}
}
