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