source: trunk/VUT/Ogre/src/OgrePlatformHierarchyInterface.cpp @ 92

Revision 92, 4.2 KB checked in by mattausch, 19 years ago (diff)

exchanged halfbounding box with full bounding box
Line 
1#include <OgreCamera.h>
2
3//#include "OgreSolidHalfBoundingBox.h"
4#include "OgreSolidBoundingBox.h"
5#include "OgrePlatformHierarchyInterface.h"
6#include "OgrePlatformOcclusionQuery.h"
7#include <windows.h>
8
9namespace Ogre {
10
11//-----------------------------------------------------------------------
12PlatformHierarchyInterface::PlatformHierarchyInterface(SceneManager *sm, RenderSystem *rsys):
13mSceneManager(sm), mRenderSystem(rsys), mSolidBoundingBox(NULL)/*, mSolidHalfBoundingBox(NULL)*/
14{
15}
16//-----------------------------------------------------------------------
17PlatformHierarchyInterface::~PlatformHierarchyInterface()
18{
19        DeleteQueries();
20
21        if(mSolidBoundingBox)
22                delete mSolidBoundingBox;
23}
24//-----------------------------------------------------------------------
25void PlatformHierarchyInterface::DeleteQueries()
26{
27        for(int i=0; i < (int)mOcclusionQueries.size(); ++i)
28                delete mOcclusionQueries[i];
29
30        mOcclusionQueries.clear();
31}
32//-----------------------------------------------------------------------
33void PlatformHierarchyInterface::RenderBoundingBox(AxisAlignedBox *box)
34{
35        static RenderOperation ro;
36
37        //TODO: this should be the full bounding box
38        SolidBoundingBox *solidBox = GetSolidBoundingBox();
39       
40        mRenderSystem->_setWorldMatrix(Ogre::Matrix4::IDENTITY);
41        mSceneManager->useRenderableViewProjMode(solidBox);
42    mSceneManager->setPass(solidBox->getTechnique()->getPass(0));
43
44        solidBox->SetupBoundingBoxVertices(*box);
45                               
46        solidBox->getRenderOperation(ro);
47        ro.srcRenderable = solidBox;
48        mRenderSystem->_render(ro);
49
50        // Render two halfes of the bounding box (using triangle fans)
51        /*for(int halfIdx = 0; halfIdx < 2; ++halfIdx)
52        {
53                solidBox->SetupBoundingBoxVertices(*box, halfIdx == 1);
54                               
55                solidBox->getRenderOperation(ro);
56                ro.srcRenderable = solidBox;
57                mRenderSystem->_render(ro);
58        }*/
59}
60//-----------------------------------------------------------------------
61void PlatformHierarchyInterface::SetCamera(Ogre::Camera *cam)
62{
63        mCamera = cam;
64}
65//-----------------------------------------------------------------------
66GtpVisibility::OcclusionQuery *PlatformHierarchyInterface::GetNextOcclusionQuery()
67{
68        if(mCurrentTestIdx == mOcclusionQueries.size())
69        {
70                mOcclusionQueries.push_back(new PlatformOcclusionQuery(mRenderSystem));
71        }
72       
73        return mOcclusionQueries[mCurrentTestIdx ++];
74}
75//-----------------------------------------------------------------------
76void PlatformHierarchyInterface::InitFrame(GtpVisibility::HierarchyNode *root, Camera *cam)
77{
78        GtpVisibility::HierarchyInterface::InitFrame(root);
79        mPreviousNode = NULL;
80        SetCamera(cam);
81}
82//-----------------------------------------------------------------------
83void PlatformHierarchyInterface::SetSceneManager(SceneManager *sm)
84{
85        mSceneManager = sm;
86}
87//-----------------------------------------------------------------------
88void PlatformHierarchyInterface::SetRenderSystem(RenderSystem *rsys)
89{
90        mRenderSystem = rsys;
91}
92//-----------------------------------------------------------------------
93bool PlatformHierarchyInterface::CheckFrustumVisible(GtpVisibility::HierarchyNode *node,
94                                                                                                         bool &intersects)
95{
96#ifdef GTP_VISIBILITY_MODIFIED_OGRE
97        return mCamera->isVisible(*GetBoundingBox(node), intersects);
98#else
99        return true;
100#endif
101}
102//-----------------------------------------------------------------------
103GtpVisibility::OcclusionQuery *PlatformHierarchyInterface::IssueOcclusionQuery(
104        GtpVisibility::HierarchyNode *node, const bool wasVisible)
105{
106        // get next available test id
107        GtpVisibility::OcclusionQuery *query = GetNextOcclusionQuery();
108
109        //-- the actual query test
110        query->BeginQuery();
111                       
112        // if node is leaf and was visible => will be rendered anyway.
113        // In this case we can also test with the real geometry.
114        if(mUseOptimization && wasVisible && IsLeaf(node))
115        {
116                RenderNode(node);
117        }
118        else
119        {
120                RenderBoundingBox(GetBoundingBox(node));
121        }
122
123        query->EndQuery();
124       
125        return query;
126}
127//-----------------------------------------------------------------------
128SolidBoundingBox *PlatformHierarchyInterface::GetSolidBoundingBox()
129{
130        if(!mSolidBoundingBox)
131                mSolidBoundingBox = new SolidBoundingBox;
132
133        return mSolidBoundingBox;
134}
135
136} // namespace Ogre
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