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(Vector3D localPosition, float farPlaneDistance, RequestCollector collector) { MyClipmap.ComputeLodViewBounds(m_parent.m_scaleGroup, m_lodIndex, out m_nearDistance, out m_farDistance); m_fitsInFrustum = (farPlaneDistance * 1.25f) > m_nearDistance; if (!m_fitsInFrustum) { return; } Vector3I min, max; { var minD = localPosition - m_farDistance; var maxD = localPosition + m_farDistance; MyVoxelCoordSystems.LocalPositionToRenderCellCoord(m_lodIndex, ref minD, out min); MyVoxelCoordSystems.LocalPositionToRenderCellCoord(m_lodIndex, ref maxD, out max); Vector3I.Clamp(ref min, ref Vector3I.Zero, ref m_lodSizeMinusOne, out min); Vector3I.Clamp(ref max, ref Vector3I.Zero, ref m_lodSizeMinusOne, out max); } if (m_lastMin == min && m_lastMax == max && !m_parent.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(); 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 (!WasAncestorCellLoaded(parentLod, ref cell)) { continue; } var cellId = cell.PackId64(); CellData data; if (m_clippedCells.TryGetValue(cellId, out data)) { m_clippedCells.Remove(cellId); } else { data = new CellData(); } if (data.State == CellState.Invalid) { collector.AddRequest(cellId, data.WasLoaded); data.State = CellState.Pending; } m_storedCellData.Add(cellId, data); } }
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); } } }