/// \cond
protected override void Synchronize()
{
base.Synchronize();
ColoredCubesVolumeRenderer volumeRenderer = gameObject.GetComponent <ColoredCubesVolumeRenderer>();
if (volumeRenderer != null)
{
if (volumeRenderer.material != null)
{
// We compute surface normals using derivative operations in the fragment shader, but for some reason
// these are backwards on Linux. We can correct for this in the shader by setting the multiplier below.
#if UNITY_STANDALONE_LINUX && !UNITY_EDITOR
float normalMultiplier = -1.0f;
#else
float normalMultiplier = 1.0f;
#endif
volumeRenderer.material.SetFloat("normalMultiplier", normalMultiplier);
}
}
// Syncronize the mesh data.
if (data != null)
{
// Syncronize the mesh data.
if (data.volumeHandle.HasValue)
{
CubiquityDLL.UpdateVolume(data.volumeHandle.Value);
if (CubiquityDLL.HasRootOctreeNode(data.volumeHandle.Value) == 1)
{
uint rootNodeHandle = CubiquityDLL.GetRootOctreeNode(data.volumeHandle.Value);
if (rootOctreeNodeGameObject == null)
{
rootOctreeNodeGameObject = OctreeNode.CreateOctreeNode(rootNodeHandle, gameObject);
}
OctreeNode rootOctreeNode = rootOctreeNodeGameObject.GetComponent <OctreeNode>();
int nodeSyncsPerformed = rootOctreeNode.syncNode(maxNodesPerSync, gameObject);
// If no node were syncronized then the mesh data is up to
// date and we can set the flag to convey this to the user.
isMeshSyncronized = (nodeSyncsPerformed == 0);
}
}
}
}
/// \cond
protected override bool SynchronizeOctree(uint availableSyncOperations)
{
VolumeCollider volumeCollider = gameObject.GetComponent <VolumeCollider>();
ColoredCubesVolumeRenderer volumeRenderer = gameObject.GetComponent <ColoredCubesVolumeRenderer>();
Vector3 camPos = CameraUtils.getCurrentCameraPosition();
// This is messy - perhaps the LOD thresold shold not be a parameter to update. Instead it could be passed
// as a parameter during traversal, so different traversal could retrieve differnt LODs. We then wouldn't
// want a single 'renderThisNode' member of Cubiquity nodes, but instead some threshold we could compare to.
float lodThreshold = GetComponent <VolumeRenderer>() ? GetComponent <VolumeRenderer>().lodThreshold : 0.0f;
int minimumLOD = GetComponent <VolumeRenderer>() ? GetComponent <VolumeRenderer>().minimumLOD : 0;
// Although the LOD system is partially functional I don't feel it's ready for release yet.
// The following line disables it by forcing the highest level of detail to always be used.
minimumLOD = 0;
// Next line commented out so the system starts up with LOD disabled.
//if (volumeRenderer != null && volumeRenderer.hasChanged)
{
CubiquityDLL.SetLodRange(data.volumeHandle.Value, minimumLOD, 0);
}
bool cubiquityUpToDate = CubiquityDLL.UpdateVolume(data.volumeHandle.Value, camPos.x, camPos.y, camPos.z, lodThreshold);
if (CubiquityDLL.HasRootOctreeNode(data.volumeHandle.Value) == 1)
{
uint rootNodeHandle = CubiquityDLL.GetRootOctreeNode(data.volumeHandle.Value);
if (rootOctreeNodeGameObject == null)
{
rootOctreeNodeGameObject = OctreeNode.CreateOctreeNode(rootNodeHandle, gameObject);
}
OctreeNode.syncNode(ref availableSyncOperations, rootOctreeNodeGameObject, rootNodeHandle, gameObject);
if (volumeRenderer != null && volumeRenderer.hasChanged)
{
OctreeNode.syncNodeWithVolumeRenderer(rootOctreeNodeGameObject, volumeRenderer, true);
}
if (volumeCollider != null && volumeCollider.hasChanged)
{
OctreeNode.syncNodeWithVolumeCollider(rootOctreeNodeGameObject, volumeCollider, true);
}
}
// These properties might have to be synced with the volume (e.g. LOD settings) or with components
// (e.g. shadow/material settings). Therefore we don't clear the flags until all syncing is completed.
if (volumeRenderer != null)
{
volumeRenderer.hasChanged = false;
}
if (volumeCollider != null)
{
volumeCollider.hasChanged = false;
}
// If there were still sync operations available then there was no more syncing to be done with the
// Cubiquity octree. So if the Cubiquity octree was also up to date then we have synced everything.
return(cubiquityUpToDate && availableSyncOperations > 0);
}
/// <summary>
/// Synchronize this instance.
/// </summary>
protected override void Synchronize()
{
//super!
base.Synchronize();
//Not sure if this needs to be done every synchronization but okay
CogBlockVolumeRenderer volRend = gameObject.GetComponent <CogBlockVolumeRenderer>();
//initialize the volume renderer so that it's normals face in the correct direction
if (volRend != null) //I miss actionscript with lazy evaluation so I could string these all together in one big if..
{
if (volRend.material != null)
{
// We compute surface normals using derivative operations in the fragment shader, but for some reason
// these are backwards on Linux. We can correct for this in the shader by setting the multiplier below.
#if UNITY_STANDALONE_LINUX && !UNITY_EDITOR
float normalMultiplier = -1.0f;
#else
float normalMultiplier = 1.0f;
#endif
volRend.material.SetFloat("normalMultiplier", normalMultiplier);
}
}
// Check to make sure we have anything to Synchronize
if (data == null)
{
return;
}
//still checking
if (!data.volumeHandle.HasValue)
{
return;
}
//update the volume
CubiquityDLL.UpdateVolume(data.volumeHandle.Value);
//try to synchronize the octrees
if (CubiquityDLL.HasRootOctreeNode(data.volumeHandle.Value) == 1)
{
if (rootOctreeNode == null || rootOctreeNodeGameObject == null)
{
//Debug.Log("Creating RootOctreeNode from null");
uint rootNodeHandle = CubiquityDLL.GetRootOctreeNode(data.volumeHandle.Value);
rootOctreeNode = OctreeNodeAlt.CreateOctreeNode(typeof(CogBlockOctreeNode), rootNodeHandle, gameObject) as CogBlockOctreeNode;
rootOctreeNodeGameObject = rootOctreeNode.gameObject;
}
//Sync the Node and remember SyncNode will return syncs remaining. If some are remaining, the mesh is syncronized.
isMeshSyncronized = (rootOctreeNode.SyncNode(maxNodesPerSync) != 0);
//Where Sync nodes handles re-informed a bunch of nodes based on mesh changes, RelayComponentChanges assumes that something happened
//which every node of the octree needs to know about. By setting this flag = true, we can relay those changes quickly down through the whole tree.
//of course since RelayComponentChanges doesn't really 'yield' after a certain number of units are updated, it is important to realize this function is
//called sparingly, usually only in edit mode, and should not perform incredibly complex per-update operations.
if (RelayComponentChanges)
{
rootOctreeNode.RelayComponentChanges();
}
}
}
