public void InsertNode(SceneNode node, PartitionCategories category) { switch (category) { case PartitionCategories.Dynamic: mDynamicRoot.AddChild(node); break; case PartitionCategories.Static: ImplicitBoundingBoxNode boxNode = node as ImplicitBoundingBoxNode; if (boxNode == null) { boxNode = new ImplicitBoundingBoxNode(true); boxNode.AddChild(node); boxNode.RecalculateBound(); } if (mStaticTreeRoot == null) { mStaticTreeRoot = boxNode; } else { mStaticTreeRoot.InsertNodeIntoBVH(boxNode); } break; case PartitionCategories.Skybox: mSkyboxRoot.AddChild(node); break; } }
private SceneNode PartitionSectorGrid(int xMinIndex, int xCount, int zMinIndex, int zCount) { if (xCount == 1 && zCount == 1) { return(CreateSectorNode(xMinIndex, zMinIndex)); } SceneNode child1 = null; SceneNode child2 = null; if (xCount > zCount) { child1 = PartitionSectorGrid( xMinIndex, xCount / 2, zMinIndex, zCount); child2 = PartitionSectorGrid( xMinIndex + xCount / 2, xCount - xCount / 2, zMinIndex, zCount); } else { child1 = PartitionSectorGrid( xMinIndex, xCount, zMinIndex, zCount / 2); child2 = PartitionSectorGrid( xMinIndex, xCount, zMinIndex + zCount / 2, zCount - zCount / 2); } ImplicitBoundingBoxNode implicitChild1 = child1 as ImplicitBoundingBoxNode; ImplicitBoundingBoxNode implicitChild2 = child2 as ImplicitBoundingBoxNode; // If either child is not an implicit node, then this node must be marked as a 'leaf' node so the BVH insertion will work correctly. ImplicitBoundingBoxNode parentPartition = new ImplicitBoundingBoxNode(implicitChild1 == null || implicitChild2 == null); parentPartition.AddChild(child1); parentPartition.AddChild(child2); return(parentPartition); }
private SceneNode PartitionSectorGrid(int xMinIndex, int xCount, int zMinIndex, int zCount) { if (xCount == 1 && zCount == 1) return CreateSectorNode(xMinIndex, zMinIndex); SceneNode child1 = null; SceneNode child2 = null; if (xCount > zCount) { child1 = PartitionSectorGrid( xMinIndex, xCount / 2, zMinIndex, zCount); child2 = PartitionSectorGrid( xMinIndex + xCount / 2, xCount - xCount / 2, zMinIndex, zCount); } else { child1 = PartitionSectorGrid( xMinIndex, xCount, zMinIndex, zCount / 2); child2 = PartitionSectorGrid( xMinIndex, xCount, zMinIndex + zCount / 2, zCount - zCount / 2); } ImplicitBoundingBoxNode implicitChild1 = child1 as ImplicitBoundingBoxNode; ImplicitBoundingBoxNode implicitChild2 = child2 as ImplicitBoundingBoxNode; // If either child is not an implicit node, then this node must be marked as a 'leaf' node so the BVH insertion will work correctly. ImplicitBoundingBoxNode parentPartition = new ImplicitBoundingBoxNode(implicitChild1 == null || implicitChild2 == null); parentPartition.AddChild(child1); parentPartition.AddChild(child2); return parentPartition; }
public void InsertNode(SceneNode node, PartitionCategories category) { switch (category) { case PartitionCategories.Dynamic: mDynamicRoot.AddChild(node); break; case PartitionCategories.Static: ImplicitBoundingBoxNode boxNode = node as ImplicitBoundingBoxNode; if (boxNode == null) { boxNode = new ImplicitBoundingBoxNode(true); boxNode.AddChild(node); boxNode.RecalculateBound(); } if (mStaticTreeRoot == null) { mStaticTreeRoot = boxNode; } else { mStaticTreeRoot.InsertNodeIntoBVH(boxNode); } break; case PartitionCategories.Skybox: mSkyboxRoot.AddChild(node); break; } }