source: GTP/trunk/Lib/Vis/OnlineCullingCHC/OGRE/src/OgreKdTreeHierarchyInterface.cpp @ 2455

Revision 2455, 3.8 KB checked in by mattausch, 17 years ago (diff)
Line 
1/*
2-----------------------------------------------------------------------------
3This source file is part of the GameTools Project
4http://www.gametools.org
5
6Author: Martin Szydlowski
7-----------------------------------------------------------------------------
8*/
9
10#include "OgreKdRenderable.h"
11#include "OgreKdTreeSceneManager.h"
12#include "OgreKdTreeHierarchyInterface.h"
13
14namespace Ogre
15{
16
17KdTreeHierarchyInterface::KdTreeHierarchyInterface(KdTreeSceneManager *sm, RenderSystem *rsys):
18PlatformHierarchyInterface(sm, rsys)
19{
20
21}
22
23bool KdTreeHierarchyInterface::IsLeaf(GtpVisibility::HierarchyNode *node) const
24{
25        return KDNODEPTR_CAST(node)->isLeaf();
26}
27
28void KdTreeHierarchyInterface::TraverseNode(GtpVisibility::HierarchyNode *node)
29{
30        ++ mNumTraversedNodes;
31
32        KdTree::Node * kdnode = KDNODEPTR_CAST(node);
33
34        // if the node is a leaf and has geometry => render it
35        if (kdnode->isLeaf())
36        {
37                if (!kdnode->isEmpty())
38                {
39                        RenderNode(node);
40                }
41        }
42        else
43        {
44                if (kdnode->getLeftChild())
45                        mDistanceQueue->push(kdnode->getLeftChild());
46                if (kdnode->getRightChild())
47                        mDistanceQueue->push(kdnode->getRightChild());
48        }
49}
50
51void KdTreeHierarchyInterface::RenderNode(GtpVisibility::HierarchyNode *node)
52{
53        KdTree::Node * kdnode = KDNODEPTR_CAST(node);
54        if (kdnode->lastRendered() != mFrameId)
55        {
56                kdnode->setLastRendered(mFrameId);
57                KdTreeSceneManager * ksm = static_cast<KdTreeSceneManager *>(mSceneManager);
58
59                ksm->_renderNode(kdnode, mCamera, mOnlyShadowCasters, mLeavePassesInQueue);
60
61                mVisibleNodes.push_back(node);
62        }
63}
64
65void KdTreeHierarchyInterface::PullUpVisibility(GtpVisibility::HierarchyNode *node) const
66{
67        KdTree::Node * kdnode = KDNODEPTR_CAST(node);
68
69        while (kdnode && !kdnode->isNodeVisible())
70        {
71                kdnode->setNodeVisible(true);
72                kdnode = kdnode->getParent();
73        }
74}
75
76float KdTreeHierarchyInterface::GetSquaredDistance(GtpVisibility::HierarchyNode *node) const
77{
78        const Vector3 pos = KDNODEPTR_CAST(node)->mAABB.getCenter();
79        return (mCameraPosition - pos).squaredLength();
80}
81
82AxisAlignedBox * KdTreeHierarchyInterface::GetBoundingBox(GtpVisibility::HierarchyNode *node)
83{
84        // reuse box if node is the same
85        // only create renderable bounding box for new node
86        if (node != mOldNode)
87        {
88                mOldNode = node;
89                mBox = KDNODEPTR_CAST(node)->_getWorldAABB();
90        }
91
92        return &mBox;
93}
94
95bool KdTreeHierarchyInterface::HasGeometry(GtpVisibility::HierarchyNode *node) const
96{
97        return KDNODEPTR_CAST(node)->hasGeometry();
98}
99
100void KdTreeHierarchyInterface::SetNodeVisible(GtpVisibility::HierarchyNode *node, const bool visible) const
101{
102        KDNODEPTR_CAST(node)->setNodeVisible(visible);
103}
104
105bool KdTreeHierarchyInterface::IsNodeVisible(GtpVisibility::HierarchyNode *node) const
106{
107        return KDNODEPTR_CAST(node)->isNodeVisible();
108}
109
110void KdTreeHierarchyInterface::SetLastVisited(GtpVisibility::HierarchyNode *node, const unsigned int frameId) const
111{
112        KDNODEPTR_CAST(node)->setLastVisited(frameId);
113}
114
115unsigned int KdTreeHierarchyInterface::LastVisited(GtpVisibility::HierarchyNode *node) const
116{
117        return KDNODEPTR_CAST(node)->lastVisited();
118}
119
120void KdTreeHierarchyInterface::VisualizeCulledNode(GtpVisibility::HierarchyNode *node,
121                                                                                                   GtpVisibility::CullingType type) const
122{
123        WireBoundingBox *box = KDNODEPTR_CAST(node)->getWireBoundingBox();
124
125        if (type == GtpVisibility::FRUSTUM_CULLED)
126        {
127                box->setMaterial("FrustumCulledNodesMaterial");
128        }
129        else // type == GtpVisibility::QUERY_CULLED
130        {
131                box->setMaterial("QueryCulledNodesMaterial");
132        }
133
134        static_cast<KdTreeSceneManager *>(mSceneManager)->getRenderQueue()->addRenderable(box);
135}
136
137void KdTreeHierarchyInterface::GetNodeGeometryList(GtpVisibility::HierarchyNode *node,
138                                                                                                   GeometryVector *geometryList,
139                                                                                                   bool includeChildren)
140{
141        KDNODEPTR_CAST(node)->getGeometryList(geometryList);
142}
143
144} // namespace Ogre
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