public IEnumerator Download(Promise <bool> loadComplete)
{
string url = UrlUtils.ReplaceDataProtocol(Url);
string dir = UrlUtils.GetBaseUri(url);
string file = UrlUtils.GetLastPathSegment(url);
if (file.EndsWith(".3mxb", StringComparison.OrdinalIgnoreCase))
{
this.Root = new PagedLOD("root", this.transform, dir, 0);
this.Root.unity3MXBComponent = this;
this.Root.MaxScreenDiameter = 0;
this.Root.BoundingSphere = new TileBoundingSphere(new Vector3(0, 0, 0), 1e30f);
this.Root.ChildrenFiles = new List <string>();
this.Root.ChildrenFiles.Add(file);
yield return(null);
}
}
public void Traverse(int frameCount, CamState[] camStates, ref int loadCount, ref int stagingCount)
{
if (camStates.Length == 0)
{
return;
}
this.FrameNumberOfLastTraversal = frameCount;
// TODO: optimize run speed
// cull by bounding sphere
bool isInSide = false;
float screenDiameter = 0;
foreach (CamState camState in camStates)
{
PlaneClipMask mask = this.BoundingSphere.IntersectPlanes(camState.planes, PlaneClipMask.GetDefaultMask());
if (mask.Intersection != IntersectionType.OUTSIDE)
{
isInSide = true;
screenDiameter = Mathf.Max(screenDiameter, this.BoundingSphere.ScreenDiameter(camState.pixelSizeVector));
}
}
if (isInSide == false)
{
this.EnableRenderer(false);
MarkStagingChildren(ref stagingCount);
return;
}
// traverse based on screenDiameter
if (screenDiameter < MaxScreenDiameter || this.ChildrenFiles.Count == 0)
{
this.EnableRenderer(true);
MarkStagingChildren(ref stagingCount);
}
else
{
// commit
if (this.childrenStatus == ChildrenStatus.Staged)
{
this.EnableRenderer(true);
if (loadCount >= 5) // TODO: export 5 as a global option
{
return;
}
foreach (RawPagedLOD stagedChild in this.StagedChildren)
{
PagedLOD commitedChild = new PagedLOD(stagedChild.id, this.Go.transform, stagedChild.dir, this.Depth + 1);
commitedChild.unity3MXBComponent = this.unity3MXBComponent;
commitedChild.BBMin = stagedChild.BBMin;
commitedChild.BBMax = stagedChild.BBMax;
commitedChild.BoundingSphere = stagedChild.BoundingSphere;
commitedChild.MaxScreenDiameter = stagedChild.MaxScreenDiameter;
commitedChild.ChildrenFiles = stagedChild.ChildrenFiles;
if (stagedChild.IsPointCloud)
{
commitedChild.AddPointCloud(stagedChild.PointClouds);
}
else
{
commitedChild.AddMeshTexture(stagedChild.TexMeshs);
}
this.CommitedChildren.Add(commitedChild);
}
this.StagedChildren.Clear();
this.childrenStatus = ChildrenStatus.Commited;
this.unity3MXBComponent.LRUCache.Add(this);
--stagingCount;
++loadCount;
}
// commited
if (this.childrenStatus == ChildrenStatus.Commited)
{
this.EnableRenderer(false);
this.unity3MXBComponent.LRUCache.MarkUsed(this);
foreach (PagedLOD pagedLOD in this.CommitedChildren)
{
pagedLOD.Traverse(Time.frameCount, camStates, ref loadCount, ref stagingCount);
}
}
else
{
this.EnableRenderer(true);
if (this.childrenStatus == ChildrenStatus.Unstaged)
{
this.childrenStatus = ChildrenStatus.Staging;
++stagingCount;
PCQueue.Current.EnqueueItem(() =>
{
// stage
StageChildren(this.dir, this.ChildrenFiles, this.StagedChildren);
this.childrenStatus = ChildrenStatus.Staged;
});
}
}
}
}