public PlaneClipMask IntersectPlanes(Plane[] planes, PlaneClipMask mask)
{
if (mask.Intersection != IntersectionType.INTERSECTING)
{
return(mask);
}
for (var i = 0; i < planes.Length; ++i)
{
if (mask.Intersecting(i))
{
IntersectionType value = this.IntersectPlane(planes[i]);
mask.Set(i, value);
if (value == IntersectionType.OUTSIDE)
{
break;
}
}
}
return(mask);
}
public PlaneClipMask IntersectPlanes(Plane[] planes)
{
return(IntersectPlanes(planes, PlaneClipMask.GetDefaultMask()));
}
public void Traverse(int frameCount, List <CamState> camStates)
{
if (camStates.Count == 0)
{
return;
}
this.FrameNumberOfLastTraversal = frameCount;
// TODO: optimize run speed
// cull by bounding sphere
bool isInSide = false;
float screenDiameter = 0;
float minDistance = float.MaxValue;
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));
float distance = this.BoundingSphere.DistanceTo(camState.position);
minDistance = Mathf.Min(distance, minDistance); // We take the min in case multiple cameras, reset dist to max float on frame reset
}
}
if (isInSide == false)
{
this.EnableRenderer(false);
MarkStagingChildren();
return;
}
// traverse based on screenDiameter
if (screenDiameter < MaxScreenDiameter || this.ChildrenFiles.Count == 0)
{
this.EnableRenderer(true);
MarkStagingChildren();
}
else
{
// commited
if (this.childrenStatus == ChildrenStatus.Commited)
{
this.EnableRenderer(false);
this.unity3mxComponent.LRUCache.MarkUsed(this);
foreach (PagedLOD pagedLOD in this.CommitedChildren)
{
pagedLOD.Traverse(Time.frameCount, camStates);
}
}
else if (this.childrenStatus == ChildrenStatus.Staged)
{
this.EnableRenderer(true);
this.unity3mxComponent.LRUCache.MarkUsed(this);
}
else
{
this.EnableRenderer(true);
if (this.childrenStatus == ChildrenStatus.Unstaged)
{
if (!RequestManager.Current.Full())
{
this.childrenStatus = ChildrenStatus.Staging;
Promise <bool> finished = new Promise <bool>();
finished.Then((success) =>
{
if (this.CommitedChildren.Count >= this.ChildrenFiles.Count)
{
this.childrenStatus = PagedLOD.ChildrenStatus.Staged;
this.unity3mxComponent.LRUCache.Add(this);
this.unity3mxComponent.CommitingQueue.Enqueue(this);
}
else
{
this.childrenStatus = ChildrenStatus.Unstaged;
}
});
Promise started = new Promise();
started.Then(() =>
{
this.unity3mxComponent.StartCoroutine(this.StageChildrenCo(finished));
});
Request request = new Request(this, this.Priority(minDistance), started, finished);
RequestManager.Current.EnqueRequest(request);
}
}
}
}
}
