public MyClipmap(uint id, MyClipmapScaleEnum scaleGroup, MatrixD worldMatrix, Vector3I sizeLod0, IMyClipmapCellHandler cellProvider)
{
m_scaleGroup = scaleGroup;
m_worldMatrix = worldMatrix;
MatrixD.Invert(ref m_worldMatrix, out m_invWorldMatrix);
m_sizeLod0 = sizeLod0;
m_localAABB = new BoundingBoxD(Vector3D.Zero, new Vector3D(sizeLod0 * MyVoxelCoordSystems.RenderCellSizeInMeters(0)));
for (int lod = 0; lod < m_lodLevels.Length; ++lod)
{
var sizeShift = lod + MyVoxelCoordSystems.RenderCellSizeInLodVoxelsShiftDelta(lod);
m_lodLevels[lod] = new LodLevel(this, lod, ((m_sizeLod0 - 1) >> sizeShift) + 1);
}
m_updateQueueItem = new UpdateQueueItem(this);
m_requestCollector = new RequestCollector(id);
m_cellHandler = cellProvider;
}
public void DebugDraw()
{
//if (m_lodIndex > 5)
// return;
// if (m_lodIndex == 1)
// {
// float sizeInMetres = MyVoxelCoordSystems.RenderCellSizeInMeters(m_lodIndex);
// //var start = localFarCameraBox.Min;
// //var end = localFarCameraBox.Max;
// var start = m_localNearCameraBox.Min;
// var end = m_localNearCameraBox.Max;
// Vector3I coord = start;
// Color nearColor = Color.Yellow;
// Color farColor = Color.White;
// var startF = m_localFarCameraBox.Min;
// var endF = m_localFarCameraBox.Max;
// Vector3I coordF = startF;
//// for (var it = new Vector3I.RangeIterator(ref startF, ref endF);
////it.IsValid(); it.GetNext(out coordF))
//// {
//// Vector3D min = Vector3D.Transform((Vector3D)(sizeInMetres * coordF), m_parent.m_worldMatrix);
//// Vector3D max = Vector3D.Transform((Vector3D)(sizeInMetres * coordF + new Vector3(sizeInMetres)), m_parent.m_worldMatrix);
//// BoundingBoxD aabb = new BoundingBoxD(min, max);
//// MyRenderProxy.DebugDrawAABB(aabb, farColor, 1, 1, false);
//// if (Vector3D.Distance(CameraFrustumGetter().Matrix.Translation, aabb.Center) < 200)
//// MyRenderProxy.DebugDrawText3D(aabb.Center, coordF.ToString(), farColor, 0.5f, false);
//// }
// for (var it = new Vector3I.RangeIterator(ref start, ref end);
//it.IsValid(); it.GetNext(out coord))
// {
// Vector3D min = Vector3D.Transform((Vector3D)(sizeInMetres * coord), m_clipmap.m_worldMatrix);
// Vector3D max = Vector3D.Transform((Vector3D)(sizeInMetres * coord + new Vector3(sizeInMetres)), m_clipmap.m_worldMatrix);
// BoundingBoxD aabb = new BoundingBoxD(min, max);
// MyRenderProxy.DebugDrawAABB(aabb, nearColor, 1, 1, false);
// }
// Vector3D center = Vector3D.Transform(m_localPosition, m_clipmap.m_worldMatrix);
// MyRenderProxy.DebugDrawSphere(center, m_nearDistance, nearColor, 1, false);
// MyRenderProxy.DebugDrawSphere(center, m_farDistance, farColor, 1, false);
// }
var camera = m_clipmap.LastCameraPosition;
//if (m_lodIndex < 6)
{
float sizeInMetres = MyVoxelCoordSystems.RenderCellSizeInMeters(m_lodIndex);
Color color = LOD_COLORS[m_lodIndex] + new Vector4(0.2f);
foreach (var cell in m_storedCellData)
{
if (!cell.Value.InScene)
{
continue;
}
MyCellCoord cellStr = new MyCellCoord();
cellStr.SetUnpack(cell.Key);
var coordF = cellStr.CoordInLod;
Vector3D min = Vector3D.Transform((Vector3D)(sizeInMetres * coordF), m_clipmap.m_worldMatrix);
Vector3D max = Vector3D.Transform((Vector3D)(sizeInMetres * coordF + new Vector3(sizeInMetres)), m_clipmap.m_worldMatrix);
BoundingBoxD aabb = new BoundingBoxD(min, max);
double distance = Vector3D.Distance(camera, aabb.Center);
//if (distance < sizeInMetres * 4)
MyRenderProxy.DebugDrawAABB(aabb, color, 1, 1, true);
if (distance < sizeInMetres * 2)
{
MyRenderProxy.DebugDrawText3D(aabb.Center, String.Format("{0}:{1}", m_lodIndex, coordF.ToString()), color, 0.7f, false);
}
}
if (m_storedCellData.Count > 0)
{
Vector3D center = Vector3D.Transform(m_localPosition, m_clipmap.m_worldMatrix);
//MyRenderProxy.DebugDrawSphere(center, m_farDistance, color, 1, false);
}
}
}
internal void DoClipping(float camDistanceFromCenter, Vector3D localPosition, float farPlaneDistance, RequestCollector collector, bool frustumCulling, float rangeScale)
{
int lodIndex = m_lodIndex;
if (!ShouldBeThisLodVisible(camDistanceFromCenter))
{
MyUtils.Swap(ref m_storedCellData, ref m_clippedCells);
m_storedCellData.Clear();
return;
}
m_localPosition = localPosition;
MyClipmap.ComputeLodViewBounds(m_clipmap.m_scaleGroup, lodIndex, out m_nearDistance, out m_farDistance);
farPlaneDistance *= rangeScale;
m_farDistance *= rangeScale;
m_nearDistance *= rangeScale;
m_fitsInFrustum = (farPlaneDistance * 1.25f) > m_nearDistance;
if (!m_fitsInFrustum && m_lodIndex == lodIndex)
{
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(lodIndex, ref minD, out min);
MyVoxelCoordSystems.LocalPositionToRenderCellCoord(lodIndex, ref maxD, out max);
BoundingBoxI lodBox = new BoundingBoxI(Vector3I.Zero, Vector3I.Max(m_lodSizeMinusOne, Vector3I.Zero));
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;
intersection.IntersectWith(ref 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.
if (frustumCulling)
{
MyUtils.Swap(ref m_storedCellData, ref m_clippedCells);
m_storedCellData.Clear();
}
if (intersects)
{
float sizeInMetres = MyVoxelCoordSystems.RenderCellSizeInMeters(lodIndex);
MyCellCoord cell = new MyCellCoord(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 (frustumCulling)
//{
// 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)
// {
// m_outsideCells.Add(cell.CoordInLod);
// continue;
// }
//}
UnclipCell(collector, cell, true);
}
//cache cells around frustum
if (collector.SentRequestsEmpty)
{
foreach (var outsideCell in m_outsideCells)
{
cell.CoordInLod = outsideCell;
UnclipCell(collector, cell, frustumCulling);
}
}
m_outsideCells.Clear();
}
}
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);
}
}
}