[59] | 1 | #include "OgreOctreeHierarchyInterface.h"
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[925] | 2 | //#include "OgreVisibilityOctreeSceneManager.h"
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[59] | 3 | #include <OgreOctree.h>
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[94] | 4 | #include <OgreLogManager.h>
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[113] | 5 | #include <OgreStringConverter.h>
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[59] | 6 |
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[115] | 7 |
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[59] | 8 | namespace Ogre {
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[94] | 9 |
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[59] | 10 | //-----------------------------------------------------------------------
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[2258] | 11 | OctreeHierarchyInterface::OctreeHierarchyInterface(OctreeSceneManager *sm,
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| 12 | RenderSystem *rsys):
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[158] | 13 | SceneNodeHierarchyInterface(sm, rsys)
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[2258] | 14 | {}
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[59] | 15 | //-----------------------------------------------------------------------
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[158] | 16 | void OctreeHierarchyInterface::TraverseNode(GtpVisibility::HierarchyNode *node)
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[59] | 17 | {
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[139] | 18 | ++ mNumTraversedNodes;
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[59] | 19 |
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[87] | 20 | Octree *octree = static_cast<Octree *>(node);
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| 21 |
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[59] | 22 | // if we come across some renderable geometry => render it
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[726] | 23 | if (!octree->mNodes.empty())
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[87] | 24 | {
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| 25 | RenderNode(node);
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| 26 | }
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[59] | 27 |
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[925] | 28 |
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[726] | 29 | // if not all subtrees are empty
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[94] | 30 | if (!IsLeaf(node))
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[59] | 31 | {
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[726] | 32 | Octree *nextChild;
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| 33 |
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| 34 | if ((nextChild = octree->mChildren[0][0][0]) != NULL)
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| 35 | mDistanceQueue->push(nextChild);
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| 36 | if ((nextChild = octree->mChildren[0][0][1]) != NULL)
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| 37 | mDistanceQueue->push(nextChild);
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| 38 | if ((nextChild = octree->mChildren[0][1][0]) != NULL)
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| 39 | mDistanceQueue->push(nextChild);
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| 40 | if ((nextChild = octree->mChildren[0][1][1]) != NULL)
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| 41 | mDistanceQueue->push(nextChild);
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| 42 | if ((nextChild = octree->mChildren[1][0][0]) != NULL)
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| 43 | mDistanceQueue->push(nextChild);
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| 44 | if ((nextChild = octree->mChildren[1][0][1]) != NULL)
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| 45 | mDistanceQueue->push(nextChild);
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| 46 | if ((nextChild = octree->mChildren[1][1][0]) != NULL)
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| 47 | mDistanceQueue->push(nextChild);
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| 48 | if ((nextChild = octree->mChildren[1][1][1]) != NULL)
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| 49 | mDistanceQueue->push(nextChild);
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[59] | 50 | }
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| 51 | }
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| 52 | //-----------------------------------------------------------------------
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[2259] | 53 | GtpVisibility::HierarchyNode *OctreeHierarchyInterface::GetRandomLeaf(GtpVisibility::HierarchyNode *root)
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[2258] | 54 | {
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[2259] | 55 | if (IsLeaf(root))
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| 56 | return root;
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| 57 |
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| 58 | Octree *octree = static_cast<Octree *>(root);
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| 59 |
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| 60 | int mask = (int) (rand() * 8);
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| 61 |
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| 62 | // random decision
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| 63 | Octree *child = octree->mChildren[mask & 1][mask & 2][mask & 3];
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| 64 |
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| 65 | return GetRandomLeaf(child);
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[2258] | 66 | }
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| 67 | //-----------------------------------------------------------------------
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| 68 | void OctreeHierarchyInterface::TraverseNode2(GtpVisibility::HierarchyNode *node)
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| 69 | {
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| 70 | ++ mNumTraversedNodes;
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| 71 |
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| 72 | Octree *octree = static_cast<Octree *>(node);
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| 73 |
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| 74 | // if we come across some renderable geometry => render it
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| 75 | if (!octree->mNodes.empty())
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| 76 | {
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| 77 | // render everything from here
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| 78 | if (octree->isOctreeFullyVisible())
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| 79 | {
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| 80 | RenderNodeRecursive(node);
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| 81 | return;
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| 82 | }
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| 83 |
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| 84 | RenderNode(node);
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| 85 | }
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| 86 |
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| 87 | // if not all subtrees are empty
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| 88 | if (!IsLeaf(node))
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| 89 | {
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| 90 | Octree *nextChild;
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| 91 |
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| 92 | if ((nextChild = octree->mChildren[0][0][0]) != NULL)
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| 93 | mDistanceQueue->push(nextChild);
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| 94 | if ((nextChild = octree->mChildren[0][0][1]) != NULL)
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| 95 | mDistanceQueue->push(nextChild);
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| 96 | if ((nextChild = octree->mChildren[0][1][0]) != NULL)
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| 97 | mDistanceQueue->push(nextChild);
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| 98 | if ((nextChild = octree->mChildren[0][1][1]) != NULL)
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| 99 | mDistanceQueue->push(nextChild);
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| 100 | if ((nextChild = octree->mChildren[1][0][0]) != NULL)
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| 101 | mDistanceQueue->push(nextChild);
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| 102 | if ((nextChild = octree->mChildren[1][0][1]) != NULL)
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| 103 | mDistanceQueue->push(nextChild);
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| 104 | if ((nextChild = octree->mChildren[1][1][0]) != NULL)
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| 105 | mDistanceQueue->push(nextChild);
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| 106 | if ((nextChild = octree->mChildren[1][1][1]) != NULL)
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| 107 | mDistanceQueue->push(nextChild);
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| 108 | }
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| 109 | }
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| 110 | //-----------------------------------------------------------------------
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[74] | 111 | bool OctreeHierarchyInterface::IsLeaf(GtpVisibility::HierarchyNode *node) const
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[59] | 112 | {
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[94] | 113 | Octree *octree = static_cast<Octree *>(node);
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[944] | 114 |
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[94] | 115 | // HACK: if there are subtrees, they are empty => we are not interested in them
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| 116 | return octree->numNodes() == (int)octree->mNodes.size();
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[59] | 117 | }
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| 118 | //-----------------------------------------------------------------------
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[74] | 119 | bool OctreeHierarchyInterface::HasGeometry(GtpVisibility::HierarchyNode *node) const
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[59] | 120 | {
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[722] | 121 | return !(static_cast<Octree *>(node))->mNodes.empty();
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[59] | 122 | }
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| 123 | //-----------------------------------------------------------------------
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[87] | 124 | float OctreeHierarchyInterface::GetSquaredDistance(GtpVisibility::HierarchyNode *node) const
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[59] | 125 | {
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[726] | 126 | const Vector3 bmin = static_cast<Octree *>(node)->mBox.getMinimum();
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| 127 | const Vector3 bmax = static_cast<Octree *>(node)->mBox.getMaximum();
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[722] | 128 |
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[726] | 129 | const Vector3 pos = (bmax - bmin) * 0.5 + bmin;
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[345] | 130 |
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[944] | 131 | /* std::stringstream d;
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| 132 | d << "a: " << (mCameraPosition - pos).squaredLength()
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| 133 | << " b: " << (mCullCamera->getDerivedPosition() - pos).squaredLength();
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| 134 | LogManager::getSingleton().logMessage(d.str());*/
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[726] | 135 | return (mCameraPosition - pos).squaredLength();
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[59] | 136 | }
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| 137 | //-----------------------------------------------------------------------
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[74] | 138 | void OctreeHierarchyInterface::SetNodeVisible(GtpVisibility::HierarchyNode *node,
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[345] | 139 | const bool visible) const
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[59] | 140 | {
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| 141 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 142 | static_cast<Octree *>(node)->setOctreeVisible(visible);
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| 143 | #endif
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| 144 | }
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| 145 | //-----------------------------------------------------------------------
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[74] | 146 | void OctreeHierarchyInterface::SetLastVisited(GtpVisibility::HierarchyNode *node,
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[345] | 147 | const unsigned int frameId) const
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[59] | 148 | {
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| 149 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 150 | static_cast<Octree *>(node)->setLastVisited(frameId);
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| 151 | #endif
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| 152 | }
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| 153 | //-----------------------------------------------------------------------
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[345] | 154 | void OctreeHierarchyInterface::PullUpVisibility(GtpVisibility::HierarchyNode *node) const
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[59] | 155 | {
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| 156 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 157 | Octree *octant = static_cast<Octree *>(node);
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| 158 |
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[155] | 159 | while (octant && !octant->isOctreeVisible())
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[59] | 160 | {
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| 161 | octant->setOctreeVisible(true);
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| 162 | octant = octant->getParent();
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| 163 | }
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| 164 | #endif
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| 165 | }
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| 166 | //-----------------------------------------------------------------------
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[2258] | 167 | void OctreeHierarchyInterface::DetermineFullVisibility(GtpVisibility::HierarchyNode *node) const
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| 168 | {
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| 169 | Octree *octant = static_cast<Octree *>(node);
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| 170 |
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| 171 | // leaf node: terminate recursion
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| 172 | if (IsLeaf(node))
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| 173 | {
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| 174 | octant->setOctreeFullyVisible(octant->isOctreeVisible());
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| 175 | return;
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| 176 | }
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| 177 |
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| 178 | octant->setOctreeFullyVisible(false);
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| 179 |
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| 180 | Octree *nextChild;
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| 181 |
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| 182 | for (int i = 0; i < 8; ++ i)
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| 183 | {
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| 184 | int x = i & 4;
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| 185 | int y = i & 2;
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| 186 | int z = i & 1;
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| 187 |
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| 188 | if ((nextChild = octant->mChildren[x][y][z]) != NULL)
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| 189 | {
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| 190 | DetermineFullVisibility(nextChild);
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| 191 | if (!nextChild->isOctreeFullyVisible())
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| 192 | return;
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| 193 | }
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| 194 | }
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| 195 |
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| 196 | // all children fully visible => pull up
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| 197 | octant->setOctreeFullyVisible(true);
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| 198 | }
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| 199 | //-----------------------------------------------------------------------
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[59] | 200 | void OctreeHierarchyInterface::RenderNode(GtpVisibility::HierarchyNode *node)
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| 201 | {
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| 202 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 203 | Octree *octant = static_cast<Octree *>(node);
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| 204 |
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| 205 | if (octant->lastRendered() != mFrameId)
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| 206 | {
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| 207 | octant->setLastRendered(mFrameId);
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[726] | 208 | OctreeSceneManager *ocm =
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[2066] | 209 | static_cast<OctreeSceneManager *>(mSceneManager);
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[938] | 210 |
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[2258] | 211 | ocm->_renderOctant(mCamera,
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| 212 | octant,
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| 213 | mOnlyShadowCasters,
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| 214 | mLeavePassesInQueue);
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[59] | 215 |
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[174] | 216 | mVisibleNodes.push_back(node);
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[59] | 217 | }
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[2258] | 218 | #endif
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[59] | 219 | }
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| 220 | //-----------------------------------------------------------------------
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[2259] | 221 | void OctreeHierarchyInterface::RenderNodeRecursive(GtpVisibility::HierarchyNode *node)
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| 222 | {
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| 223 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 224 | Octree *octant = static_cast<Octree *>(node);
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| 225 |
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| 226 | if (octant->lastRendered() != mFrameId)
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| 227 | {
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| 228 | octant->setLastRendered(mFrameId);
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| 229 | OctreeSceneManager *ocm =
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| 230 | static_cast<OctreeSceneManager *>(mSceneManager);
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| 231 |
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| 232 | ocm->_renderOctantRecursive(mCamera,
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| 233 | octant,
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| 234 | mOnlyShadowCasters,
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| 235 | mLeavePassesInQueue);
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| 236 |
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| 237 | mVisibleNodes.push_back(node);
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| 238 | }
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| 239 | #endif
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| 240 | }
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| 241 | //-----------------------------------------------------------------------
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[74] | 242 | bool OctreeHierarchyInterface::IsNodeVisible(GtpVisibility::HierarchyNode *node) const
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[59] | 243 | {
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| 244 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 245 | return static_cast<Octree *>(node)->isOctreeVisible();
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| 246 | #else
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| 247 | return true;
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| 248 | #endif
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| 249 | }
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| 250 | //-----------------------------------------------------------------------
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[2259] | 251 | bool OctreeHierarchyInterface::IsNodeFullyVisible(GtpVisibility::HierarchyNode *node) const
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| 252 | {
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| 253 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 254 | return static_cast<Octree *>(node)->isOctreeFullyVisible();
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| 255 | #else
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| 256 | return true;
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| 257 | #endif
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| 258 | }
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| 259 | //-----------------------------------------------------------------------
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[74] | 260 | unsigned int OctreeHierarchyInterface::LastVisited(GtpVisibility::HierarchyNode *node) const
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[59] | 261 | {
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| 262 | #ifdef GTP_VISIBILITY_MODIFIED_OGRE
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| 263 | return static_cast<Octree *>(node)->lastVisited();
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| 264 | #else
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| 265 | return 0;
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| 266 | #endif
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| 267 | }
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| 268 | //-----------------------------------------------------------------------
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| 269 | AxisAlignedBox *OctreeHierarchyInterface::GetBoundingBox(GtpVisibility::HierarchyNode *node)
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| 270 | {
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[925] | 271 | // reuse box if node is the same
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| 272 | // only create renderable bounding box for new node
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[938] | 273 | if (node != mSavedNode)
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[85] | 274 | {
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[155] | 275 | mSavedNode = node;
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[880] | 276 | //static_cast<Octree *>(node)->_getCullBounds(&mBox);
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[135] | 277 | mBox = static_cast<Octree *>(node)->_getWorldAABB();
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[85] | 278 | }
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[59] | 279 |
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| 280 | return &mBox;
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| 281 | }
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[112] | 282 | //-----------------------------------------------------------------------
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| 283 | void OctreeHierarchyInterface::VisualizeCulledNode(GtpVisibility::HierarchyNode *node,
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[345] | 284 | GtpVisibility::CullingType type) const
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[112] | 285 | {
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| 286 | WireBoundingBox *box = static_cast<Octree *>(node)->getWireBoundingBox();
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[59] | 287 |
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[112] | 288 | if (type == GtpVisibility::FRUSTUM_CULLED)
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| 289 | {
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| 290 | box->setMaterial("FrustumCulledNodesMaterial");
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| 291 | }
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| 292 | else // type == GtpVisibility::QUERY_CULLED
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| 293 | {
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| 294 | box->setMaterial("QueryCulledNodesMaterial");
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| 295 | }
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[113] | 296 |
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[2066] | 297 | //static_cast<OctreeSceneManager *>(mSceneManager)->getBoxes()->push_back(box);
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| 298 | static_cast<OctreeSceneManager *>(mSceneManager)->getBoxes()->push_back(box);
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[112] | 299 | }
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[130] | 300 | //-----------------------------------------------------------------------
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[726] | 301 | void OctreeHierarchyInterface::GetNodeGeometryList(GtpVisibility::HierarchyNode *node,
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| 302 | GtpVisibility::GeometryVector *geometryList,
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| 303 | bool includeChildren)
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[130] | 304 | {
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| 305 | NodeList::const_iterator nodeIt, nodeIt_end;
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| 306 | nodeIt_end = static_cast<Octree *>(node)->mNodes.end();
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| 307 |
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| 308 | for (nodeIt = static_cast<Octree *>(node)->mNodes.begin(); nodeIt != nodeIt_end; ++nodeIt)
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| 309 | {
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[155] | 310 | SceneNodeHierarchyInterface::GetNodeGeometryList(*nodeIt, geometryList, includeChildren);
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[130] | 311 | }
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| 312 | }
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[174] | 313 |
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[2258] | 314 |
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[59] | 315 | } // namespace Ogre
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