internal void DoClipping_Old(Vector3D localPosition, float farPlaneDistance, RequestCollector collector)
{
m_localPosition = localPosition;
MyClipmap.ComputeLodViewBounds(m_clipmap.m_scaleGroup, m_lodIndex, out m_nearDistance, out m_farDistance);
m_fitsInFrustum = (farPlaneDistance * 1.25f) > m_nearDistance;
if (!m_fitsInFrustum)
{
return;
}
//var localFrustum = new BoundingFrustumD(CameraFrustumGetter().Matrix * m_parent.m_invWorldMatrix);
var frustum = CameraFrustumGetter();
Vector3I min, max;
Vector3I ignoreMin, ignoreMax;
var minD = m_localPosition - m_farDistance;
var maxD = m_localPosition + m_farDistance;
MyVoxelCoordSystems.LocalPositionToRenderCellCoord(m_lodIndex, ref minD, out min);
MyVoxelCoordSystems.LocalPositionToRenderCellCoord(m_lodIndex, ref maxD, out max);
BoundingBoxI lodBox = new BoundingBoxI(Vector3I.Zero, m_lodSizeMinusOne);
bool intersects = false;
bool intersectsNear = false;
m_localFarCameraBox = new BoundingBoxI(min, max);
m_localNearCameraBox = new BoundingBoxI(min, max);
if (lodBox.Intersects(m_localFarCameraBox))
{
intersects = true;
var intersection = lodBox.Intersect(m_localFarCameraBox);
min = intersection.Min;
max = intersection.Max;
//Optimize only LOD2 and higher by two lods, because neighbour cells shares border cells
if (m_lodIndex > 1)
{
float lowerFar, lowerNear;
MyClipmap.ComputeLodViewBounds(m_clipmap.m_scaleGroup, m_lodIndex - 2, out lowerFar, out lowerNear);
var minNear = m_localPosition - (lowerNear - MyVoxelCoordSystems.RenderCellSizeInMeters(m_lodIndex) / 2);
var maxNear = m_localPosition + (lowerNear - MyVoxelCoordSystems.RenderCellSizeInMeters(m_lodIndex) / 2);
MyVoxelCoordSystems.LocalPositionToRenderCellCoord(m_lodIndex, ref minNear, out ignoreMin);
MyVoxelCoordSystems.LocalPositionToRenderCellCoord(m_lodIndex, ref maxNear, out ignoreMax);
m_localNearCameraBox = new BoundingBoxI(ignoreMin, ignoreMax);
if (lodBox.Intersects(m_localNearCameraBox))
{
intersectsNear = false;
}
}
}
if (m_lastMin == min && m_lastMax == max && !m_clipmap.m_updateClipping)
{
return;
}
m_lastMin = min;
m_lastMax = max;
LodLevel parentLod, childLod;
GetNearbyLodLevels(out parentLod, out childLod);
// Moves cells which are still needed from one collection to another.
// All that is left behind is unloaded as no longer needed.
// Move everything in range to collection of next stored cells.
MyUtils.Swap(ref m_storedCellData, ref m_clippedCells);
m_storedCellData.Clear();
if (intersects)
{
float sizeInMetres = MyVoxelCoordSystems.RenderCellSizeInMeters(m_lodIndex);
MyCellCoord cell = new MyCellCoord(m_lodIndex, ref min);
for (var it = new Vector3I.RangeIterator(ref min, ref max);
it.IsValid(); it.GetNext(out cell.CoordInLod))
{
if (intersectsNear &&
m_localNearCameraBox.Contains(cell.CoordInLod) == ContainmentType.Contains)
{
continue;
}
//if (!WasAncestorCellLoaded(parentLod, ref cell))
// continue;
Vector3D minAABB = Vector3D.Transform((Vector3D)(sizeInMetres * (cell.CoordInLod - 2)), m_clipmap.m_worldMatrix);
Vector3D maxAABB = Vector3D.Transform((Vector3D)(sizeInMetres * (cell.CoordInLod + 2) + new Vector3(sizeInMetres)), m_clipmap.m_worldMatrix);
if (frustum.Contains(new BoundingBoxD(minAABB, maxAABB)) == ContainmentType.Disjoint)
{
continue;
}
var cellId = cell.PackId64();
CellData data;
if (m_clippedCells.TryGetValue(cellId, out data))
{
m_clippedCells.Remove(cellId);
}
else
{
var clipmapCellId = MyCellCoord.GetClipmapCellHash(m_clipmap.Id, cellId);
data = CellsCache.Read(clipmapCellId);
if (data == null) //cache miss
{
data = new CellData();
ClippingCacheMisses++;
}
else
{
//cache hit
ClippingCacheHits++;
//System.Diagnostics.Debug.Assert((!data.InScene && data.Cell != null) || data.Cell == null, "Not allowed cell state");
data.InScene = false;
if (data.Cell != null)
{
m_nonEmptyCells[cellId] = data;
}
}
}
if (data.State == CellState.Invalid)
{
if (!TryAddCellRequest(collector, parentLod, cell, cellId, data))
{
continue;
}
}
m_storedCellData.Add(cellId, data);
}
}
}
private void UnclipCell(RequestCollector collector, MyCellCoord cell, bool isVisible)
{
var cellId = cell.PackId64();
var clipmapCellId = MyCellCoord.GetClipmapCellHash(m_clipmap.Id, cellId);
CellData data;
if (isVisible)
{
bool highPriority = true;
if (m_clippedCells.TryGetValue(cellId, out data))
{
m_clippedCells.Remove(cellId);
}
else
{
highPriority = false;
CellBlendData blendData;
if (!m_blendedCells.TryGetValue(cellId, out blendData))
{
data = CellsCache.Read(clipmapCellId);
if (data == null) //cache miss
{
data = new CellData();
ClippingCacheMisses++;
}
else
{
//cache hit
ClippingCacheHits++;
//System.Diagnostics.Debug.Assert((!data.InScene && data.Cell != null) || data.Cell == null, "Not allowed cell state");
data.InScene = false;
if (data.Cell != null)
{
m_nonEmptyCells[cellId] = data;
}
}
}
else
{
data = blendData.CellData;
if (blendData.State == BlendState.Removing)
{
blendData.UndoAfterFinish = true;
}
if (data.Cell != null)
{
m_nonEmptyCells[cellId] = data;
}
}
}
if (data.State == CellState.Invalid)
{
if (MyClipmap.UseQueries)
{
BoundingBoxD bbd;
MyVoxelCoordSystems.RenderCellCoordToLocalAABB(ref cell, out bbd);
BoundingBox bb = new BoundingBox(bbd);
if (m_clipmap.m_prunningFunc == null || m_clipmap.m_prunningFunc(ref bb, false) == ContainmentType.Intersects)
{
collector.AddRequest(cellId, data, highPriority);
}
else
{
data.State = CellState.Loaded;
data.WasLoaded = true;
}
}
else
{
collector.AddRequest(cellId, data, highPriority);
}
}
m_storedCellData.Add(cellId, data);
data.ReadyInClipmap = true;
data.ClippedOut = false;
}
else
{
if (!m_storedCellData.ContainsKey(cellId) && (!PendingCacheCellData.ContainsKey(clipmapCellId) || PendingCacheCellData[clipmapCellId].State == CellState.Invalid) && CellsCache.Read(clipmapCellId) == null)
{
if (!PendingCacheCellData.TryGetValue(clipmapCellId, out data))
{
data = new CellData();
PendingCacheCellData.Add(clipmapCellId, data);
}
if (MyClipmap.UseQueries)
{
BoundingBoxD bbd;
MyVoxelCoordSystems.RenderCellCoordToLocalAABB(ref cell, out bbd);
BoundingBox bb = new BoundingBox(bbd);
if (m_clipmap.m_prunningFunc == null || m_clipmap.m_prunningFunc(ref bb, false) == ContainmentType.Intersects)
{
data.State = CellState.Invalid;
collector.AddRequest(cellId, data, false);
}
else
{
data.State = CellState.Loaded;
data.WasLoaded = true;
}
}
else
{
data.State = CellState.Invalid;
collector.AddRequest(cellId, data, false);
}
}
}
}
/// <summary>
/// Recursive clipping function requests cells in provided range and
/// cells needed from parent to wrap the lod safely
/// </summary>
/// <param name="collector"></param>
/// <param name="it0">requested range</param>
/// <param name="ignore">inner range filled by children</param>
private void DoClipping(RequestCollector collector, Vector3I min, Vector3I max, ref BoundingBox ignore)
{
LodLevel parentLod, clevel;
GetNearbyLodLevels(out parentLod, out clevel);
MyCellCoord cell = new MyCellCoord(m_lodIndex, Vector3I.Zero);
//if (collector.SentRequestsEmpty)
{
MyUtils.Swap(ref m_storedCellData, ref m_clippedCells);
m_storedCellData.Clear();
}
var it0 = new Vector3I.RangeIterator(ref min, ref max);
cell.CoordInLod = it0.Current;
var shiftToParent = MyVoxelCoordSystems.RenderCellSizeShiftToLessDetailed(cell.Lod);
var parentCell = parentLod != null ? new MyCellCoord(parentLod.m_lodIndex, cell.CoordInLod >> shiftToParent) : cell;
var parentIgnore = new BoundingBox(parentCell.CoordInLod, parentCell.CoordInLod);
BoundingBox bb = new BoundingBox(cell.CoordInLod, cell.CoordInLod);
for (; it0.IsValid(); it0.GetNext(out cell.CoordInLod)) //cells to be loaded
{
if (ignore.Contains((Vector3)cell.CoordInLod) == ContainmentType.Contains)
{
continue; //lower lod requested
}
if (parentLod != null) //get also their lodcell mates
{
parentCell = new MyCellCoord(parentLod.m_lodIndex, cell.CoordInLod >> shiftToParent);
var it = GetChildrenCoords(this, ref parentCell);
bb.Include(it);
parentIgnore.Max = parentCell.CoordInLod;
}
}
if (parentLod != null)
{
Vector3I parentMinI = Vector3I.Round(parentIgnore.Min - Vector3.One);
Vector3I parentMaxI = Vector3I.Round(parentIgnore.Max + Vector3.One);
//Vector3I.Clamp(ref parentMinI, ref Vector3I.Zero, ref m_lodSizeMinusOne, out parentMinI);
//Vector3I.Clamp(ref parentMaxI, ref Vector3I.Zero, ref m_lodSizeMinusOne, out parentMaxI);
var parentIterator = new Vector3I.RangeIterator(ref parentMinI, ref parentMaxI);
parentLod.DoClipping(collector, parentMinI, parentMaxI, ref parentIgnore);
}
Vector3I start, end;
start = Vector3I.Round(bb.Min); end = Vector3I.Round(bb.Max);
Vector3I.Clamp(ref start, ref Vector3I.Zero, ref m_lodSizeMinusOne, out start);
Vector3I.Clamp(ref end, ref Vector3I.Zero, ref m_lodSizeMinusOne, out end);
it0 = new Vector3I.RangeIterator(ref start, ref end);
cell.CoordInLod = it0.Current;
for (; it0.IsValid(); it0.GetNext(out cell.CoordInLod)) //cells to be loaded
{
if (ignore.Contains((Vector3)cell.CoordInLod) == ContainmentType.Contains)
{
continue; //lower lod requested
}
var cellId = cell.PackId64();
CellData data;
if (m_clippedCells.TryGetValue(cellId, out data))
{
m_clippedCells.Remove(cellId);
}
else
{
var clipmapCellId = MyCellCoord.GetClipmapCellHash(m_clipmap.Id, cellId);
data = CellsCache.Read(clipmapCellId);
if (data == null) //cache miss
{
data = new CellData();
ClippingCacheMisses++;
}
else
{
//cache hit
ClippingCacheHits++;
data.InScene = false;
if (data.Cell != null)
{
m_nonEmptyCells[cellId] = data;
}
}
}
if (data.State == CellState.Invalid)
{
if (!TryAddCellRequest(collector, parentLod, cell, cellId, data))
{
continue;
}
}
if (!m_storedCellData.ContainsKey(cellId))
{
m_storedCellData.Add(cellId, data);
}
}
}