Changeset 1958

Timestamp:

01/08/07 18:40:01 (18 years ago)

Author:

mattausch

Message:

debug version of global lines renderer

Location:

GTP/trunk/Lib/Vis/Preprocessing/src

Files:

• GlobalLinesRenderer.cpp (modified) (19 diffs)
• GlobalLinesRenderer.h (modified) (3 diffs)
• Preprocessor.cpp (modified) (1 diff)
• Preprocessor.h (modified) (2 diffs)
• Preprocessor.vcproj (modified) (1 diff)
• SceneGraph.cpp (modified) (1 diff)
• SceneGraph.h (modified) (1 diff)
• Vector3.h (modified) (2 diffs)

GTP/trunk/Lib/Vis/Preprocessing/src/GlobalLinesRenderer.cpp

@@ -106 +106 @@
 {
         //globalLinesRenderer->DrawGeometry();
-        globalLinesRenderer->CastGlobalLines(Beam(), 0);
+        //globalLinesRenderer->CastGlobalLines(Beam(), 0);
+        globalLinesRenderer->DisplayBuffer();
         PrintGLerror("display");
 
@@ -124 +125 @@
         {
         case '2':
-                ++ globalLinesRenderer->mMaxDepth;
-                cout << "max depth: " << globalLinesRenderer->mMaxDepth << endl;
-                return;
+                {
+                        VssRayContainer rays;
+
+                        ++ globalLinesRenderer->mMaxDepth;
+                        globalLinesRenderer->ApplyDepthPeeling(rays, Beam(), 0);
+
+                        cout << "max depth: " << globalLinesRenderer->mMaxDepth << endl;
+                        return;
+                }
         case '1':
-                -- globalLinesRenderer->mMaxDepth;
-                cout << "max depth: " << globalLinesRenderer->mMaxDepth << endl;
-                return;
+                {
+                        VssRayContainer rays;
+
+                        -- globalLinesRenderer->mMaxDepth;
+                        cout << "max depth: " << globalLinesRenderer->mMaxDepth << endl;
+                        
+                        globalLinesRenderer->ApplyDepthPeeling(rays, Beam(), 0);
+                        return;
+                }
         case '3':
-                //globalLinesRenderer->ApplyDepthPeeling(Beam(), 0);
-                globalLinesRenderer->GrabDepthBuffer(globalLinesRenderer->mNewDepthBuffer, globalLinesRenderer->mNewTexture);
+                {
+                        //globalLinesRenderer->ApplyDepthPeeling(Beam(), 0);
+                        globalLinesRenderer->ExportDepthBuffer();
+                        return;
+                }
+        case '4':
+                {
+                        VssRayContainer rays;
+
+                        globalLinesRenderer->ApplyDepthPeeling(rays, Beam(), 0);
+                        return;
+                }
         default:
                 return;
@@ -162 +185 @@
 
 
+void GlobalLinesRenderer::DisplayBuffer()
+{
+        //mNewTexture->Bind();
+        mNewTexture->BindDepth();
+        mNewTexture->EnableTextureTarget();
+        
+        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+        
+        if (mNewTexture->IsRectangleTexture())
+        {
+                glBegin(GL_QUADS);
+                glTexCoord2f(0, 0); glVertex3f(-1, -1, -0.5f);
+                glTexCoord2f(mNewTexture->GetWidth(), 0); glVertex3f( 1, -1, -0.5f);
+                glTexCoord2f(mNewTexture->GetWidth(), mNewTexture->GetHeight()); glVertex3f( 1,  1, -0.5f);
+                glTexCoord2f(0, mNewTexture->GetHeight()); glVertex3f(-1, 1, -0.5f);
+                glEnd();
+        }
+        else
+        {
+                glBegin(GL_QUADS);
+                glTexCoord2f(0, 0); glVertex3f(-1, -1, -0.5f);
+                glTexCoord2f(1, 0); glVertex3f( 1, -1, -0.5f);
+                glTexCoord2f(1, 1); glVertex3f( 1,  1, -0.5f);
+                glTexCoord2f(0, 1); glVertex3f(-1,  1, -0.5f);
+                glEnd();
+        }  
+
+        mNewTexture->DisableTextureTarget();
+        PrintGLerror("displaytexture");
+}
+
+
 GlobalLinesRenderer::~GlobalLinesRenderer()
 {
@@ -168 +223 @@
         if (sCgContext)
                 cgDestroyContext(sCgContext);
+
+        // init the receiving buffers
+        delete mNewDepthBuffer;
+        delete mOldDepthBuffer;
+        
+        delete mNewItemBuffer;
+        delete mOldItemBuffer;
 }
 
@@ -173 +235 @@
 void GlobalLinesRenderer::CastGlobalLines(Beam &beam, const int samples)
 {
+        VssRayContainer rays;
+
         // bind pixel shader implementing the front depth buffer functionality
-        ApplyDepthPeeling(beam, samples);
+        ApplyDepthPeeling(rays, beam, samples);
 }
 
@@ -192 +256 @@
         { 
                 //glLoadIdentity();
-                        
-                //mRenderer->mUseFalseColors = true;
                 ObjectContainer::const_iterator oit, oit_end = mPreprocessor->mObjects.end();
 
@@ -215 +277 @@
 
 
+void GlobalLinesRenderer::ComputeLookAt(const float alpha, 
+                                                                                const float beta,
+                                                                                Vector3 &eye, 
+                                                                                Vector3 &up, 
+                                                                                Vector3 left)
+{
+        //float x = cos(alpha);
+        //float y = sin(alpha);
+        eye.x = sin(alpha) * cos(beta);
+        eye.y = sin(alpha) * sin(beta);
+        eye.z = cos(beta);
+
+        eye.RightHandedBase(up, left);
+}
+
+
 void GlobalLinesRenderer::InitGl()
 {
@@ -241 +319 @@
         glLoadIdentity();
 
-        // init the receiving buffers
+        // initialise the receiving buffers
         mNewDepthBuffer = new float[texWidth * texHeight];
         mOldDepthBuffer = new float[texWidth * texHeight];
         
+        for (int i = 0; i < texWidth * texHeight; ++ i)
+        {
+                mNewDepthBuffer[i] = 1;
+                mOldDepthBuffer[i] = 1;
+        }
+
         mNewItemBuffer = new int[texWidth * texHeight *4];
         mOldItemBuffer = new int[texWidth * texHeight *4];
         
+        for (int i = 0; i < texWidth * texHeight * 4; ++ i)
+        {
+                mNewItemBuffer[i] = 0;
+                mOldItemBuffer[i] = 0;
+        }
+
         AxisAlignedBox3 bbox = globalLinesRenderer->mPreprocessor->mKdTree->GetBox();
         
-        Vector3 midPoint = bbox.Center();
+        mViewPoint = bbox.Center();
         
         const float sceneSize = Magnitude(bbox.Diagonal());
-        Vector3 viewPoint = midPoint + Vector3(0.5 * sceneSize, 0, 0);
-        
-        cout << "mid point: " << midPoint << endl;
+        Vector3 viewPoint = mViewPoint + Vector3(0.5 * sceneSize, 0, 0);
+        
+        cout << "mid point: " << mViewPoint << endl;
         cout << "view point: " << viewPoint << endl;
         cout << "scene: " << bbox << endl;
+
+        mEyeVec = Normalize(viewPoint - mViewPoint);
+        mEyeVec.RightHandedBase(mUpVec, mLeftVec);
 
         /*gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z, 
@@ -331 +424 @@
                 SetFrustum(sceneSize, sceneSize, 1, sceneSize);
 
-                glClearColor(0.1, 0.7, 0.2, 1);
+                // for item buffer: white means no color
+                glClearColor(1, 1, 1, 1);
                 glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
@@ -343 +437 @@
                 glLoadIdentity();
                 gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z, 
-                                  midPoint.x, midPoint.y, midPoint.z, 
+                                  mViewPoint.x, mViewPoint.y, mViewPoint.z, 
                                   0, 1, 0);
 
@@ -350 +444 @@
         mNewTexture->EndCapture();
 
-        // setup the rendering context for the RenderTexture
+        // setup the rendering context for the other depth buffer
         mOldTexture->BeginCapture();
         {
-                glClearColor(0.1, 0.7, 0.2, 1);
+                // for item buffer: white means no color
+                glClearColor(1, 1, 1, 1);
        
                 //Reshape(texWidth, texHeight);
@@ -369 +464 @@
                 
                 gluLookAt(viewPoint.x, viewPoint.y, viewPoint.z, 
-                                  midPoint.x, midPoint.y, midPoint.z, 
+                                  mViewPoint.x, mViewPoint.y, mViewPoint.z, 
                                   0, 1, 0);
 
@@ -406 +501 @@
 
                         float newDummy2 = x - texWidth / 2;
-                        float newDummy3 = y -  texHeight / 2;
+                        float newDummy3 = y - texHeight / 2;
 
                         float oldDummy2 = newDummy2;
                         float oldDummy3 = newDummy3;
 
-                        const Vector3 newPt = newDepth * mEyeVec + newDummy1 * mLeftVec + newDummy2 * mUpVec;
-                        const Vector3 oldPt = oldDepth * mEyeVec + oldDummy1 * mLeftVec + oldDummy2 * mUpVec;
-
-                        Intersectable *termObj1 = GetObject(mNewItemBuffer[index]);
-                        Intersectable *termObj2 = GetObject(mOldItemBuffer[index]);
-
+                        const Vector3 newPt = mViewPoint + newDepth * mEyeVec + newDummy1 * mLeftVec + newDummy2 * mUpVec;
+                        const Vector3 oldPt = mViewPoint + oldDepth * mEyeVec + oldDummy1 * mLeftVec + oldDummy2 * mUpVec;
+
+                        //cout << "viewpoint: " << mViewPoint << " new: " << newPt << " old: " << newPt << endl;
+                        
+                        int r = mNewItemBuffer[index];
+                        int g = mNewItemBuffer[index + 1];
+                        int b = mNewItemBuffer[index + 2];
+                        
+                        Intersectable *termObj1 = NULL;
+                        Intersectable *termObj2 = NULL;
+
+                        // 3 times 255 means no valid object
+                        if (!((r == 255) && (g == 255) && (b == 255)))
+                        {
+                                const int id = mRenderer->GetId(r, g, b);
+                                cout << id << " ";
+                                //termObj1 = mPreprocessor->GetObjectById(id);
+                        }
+
+                        /*r = mOldItemBuffer[index];
+                        g = mOldItemBuffer[index + 1];
+                        b = mOldItemBuffer[index + 2];
+
+                        if (!((r == 255) && (g == 255) && (b == 255)))
+                                Intersectable *termObj2 = mPreprocessor->GetObjectById(mRenderer->GetId(r, g, b));
+*/
                         // create rays in both directions
-                        vssRays.push_back(new VssRay(oldPt, newPt, NULL, termObj1));
-                        vssRays.push_back(new VssRay(newPt, oldPt, NULL, termObj2));
+                        //vssRays.push_back(new VssRay(oldPt, newPt, NULL, termObj1));
+                        //vssRays.push_back(new VssRay(newPt, oldPt, NULL, termObj2));
                 }
         }
@@ -446 +562 @@
 void GlobalLinesRenderer::GrabItemBuffer(int *data, RenderTexture *rt)
 {
-        rt->BindDepth();
+        rt->Bind();
         rt->EnableTextureTarget();
-        cout << "depth: " << mNewTexture->GetDepthBits() << endl;
-
-        const int texFormat = GL_DEPTH_COMPONENT;
+        //cout << "depth: " << mNewTexture->GetDepthBits() << endl;
+
+        const int texFormat = GL_RGBA;
         glGetTexImage(mNewTexture->GetTextureTarget(), 0, texFormat, GL_FLOAT, data);
 
         mNewTexture->DisableTextureTarget();
 }
+
 
 void GlobalLinesRenderer::ExportDepthBuffer()
@@ -493 +610 @@
 
 
-void GlobalLinesRenderer::ApplyDepthPeeling(Beam &beam, const int samples)
+/*
+void GlobalLinesRenderer::ExportItemBuffer()
+{
+        mNewTexture->BindDepth();
+        mNewTexture->EnableTextureTarget();
+        cout << "depth: " << mNewTexture->GetDepthBits() << endl;
+
+        const bool components = 1;//mNewTexture->GetDepthBits() / 8;
+
+        float *data = new float[texWidth * texHeight * components];
+        //const int texFormat = WGL_TEXTURE_DEPTH_COMPONENT_NV;
+        const int texFormat = GL_DEPTH_COMPONENT;
+        //const int texFormat = GL_RGBA;
+        glGetTexImage(mNewTexture->GetTextureTarget(), 0, texFormat, GL_FLOAT, data);
+
+        string filename("depth.tga");
+        ilRegisterType(IL_FLOAT);
+
+        const int depth = 1;
+        const int bpp = components;
+
+        ilTexImage(texWidth, texHeight, depth, bpp, IL_LUMINANCE, IL_FLOAT, data);
+        ilSaveImage((char *const)filename.c_str());
+
+        cout << "finished" << endl;
+        delete data;
+        cout << "data deleted" << endl;
+        mNewTexture->DisableTextureTarget();
+        PrintGLerror("grab texture");
+}
+*/
+
+
+void GlobalLinesRenderer::ApplyDepthPeeling(VssRayContainer &rays,
+                                                                                        Beam &beam, 
+                                                                                        const int samples)
 {
         mNewTexture->BeginCapture();
@@ -504 +656 @@
         
         PrintGLerror("firstpass");
-
         if (mNewTexture->IsRectangleTexture()) cout << "rect" << endl;
+
+        // process the buffers for the first layer
+        ProcessDepthBuffer(rays);
 
         for(int i = 0; i < mMaxDepth; ++ i) 
@@ -520 +674 @@
 
                         cgGLBindProgram(sCgDepthPeelingProgram);
-                //      cgGLBindProgram(sCgPassThroughProgram);
                         cgGLEnableProfile(sCgFragmentProfile);
                         cgGLSetTextureParameter(sTextureParam, mOldTexture->GetDepthTextureID());
@@ -532 +685 @@
                         cgGLDisableTextureParameter(sTextureParam);
                         cgGLDisableProfile(sCgFragmentProfile);
+
+                        // process the buffers for following layer
+                        ProcessDepthBuffer(rays);
+
                 }
                 mNewTexture->EndCapture();
@@ -537 +694 @@
 
         PrintGLerror("endpeeling");
-
-        //mNewTexture->Bind();
-        mNewTexture->BindDepth();
-        mNewTexture->EnableTextureTarget();
-        
-        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-        
-        if (mNewTexture->IsRectangleTexture())
-        {
-                glBegin(GL_QUADS);
-                glTexCoord2f(0, 0); glVertex3f(-1, -1, -0.5f);
-                glTexCoord2f(mNewTexture->GetWidth(), 0); glVertex3f( 1, -1, -0.5f);
-                glTexCoord2f(mNewTexture->GetWidth(), mNewTexture->GetHeight()); glVertex3f( 1,  1, -0.5f);
-                glTexCoord2f(0, mNewTexture->GetHeight()); glVertex3f(-1, 1, -0.5f);
-                glEnd();
-        }
-        else
-        {
-                glBegin(GL_QUADS);
-                glTexCoord2f(0, 0); glVertex3f(-1, -1, -0.5f);
-                glTexCoord2f(1, 0); glVertex3f( 1, -1, -0.5f);
-                glTexCoord2f(1, 1); glVertex3f( 1,  1, -0.5f);
-                glTexCoord2f(0, 1); glVertex3f(-1,  1, -0.5f);
-                glEnd();
-        }  
-
-        mNewTexture->DisableTextureTarget();
-        PrintGLerror("displaytexture");
-}
-
-
-}
+}
+
+
+}

GTP/trunk/Lib/Vis/Preprocessing/src/GlobalLinesRenderer.h

@@ -51 +51 @@
 void GrabDepthBuffer(float *data, RenderTexture *rt);
 void GrabItemBuffer(int *data, RenderTexture *rt);
-void ApplyDepthPeeling(Beam &beam, const int samples);
+void ApplyDepthPeeling(VssRayContainer &rays, Beam &beam, const int samples);
 void ExportDepthBuffer();
 void ProcessDepthBuffer(VssRayContainer &vssRays);
+void DisplayBuffer();
 
         int mMaxDepth;
@@ -62 +63 @@
         float mNear;
 
+        Vector3 mViewPoint;
+
         float *mNewDepthBuffer;
         float *mOldDepthBuffer;
@@ -68 +71 @@
 RenderTexture *mNewTexture;
         RenderTexture *mOldTexture;
+
+        void ComputeLookAt(const float alpha, 
+                                           const float beta,
+                                           Vector3 &eye, 
+                                           Vector3 &up, 
+                                           Vector3 left);
 protected:
-
-        void ProcessDepthBuffer();
 
         void SwitchRenderTextures();

GTP/trunk/Lib/Vis/Preprocessing/src/Preprocessor.cpp

@@ -1294 +1294 @@
 }
 
-}
+
+Intersectable *Preprocessor::GetObjectById(const int id)
+{
+#if 0
+        // create a dummy mesh instance to be able to use stl
+        MeshInstance object(NULL);
+        object.SetId(id);
+
+        ObjectContainer::const_iterator oit =
+                lower_bound(mObjects.begin(), mObjects.end(), &object, ilt);
+                                
+        // objects sorted by id
+        if ((oit != mObjects.end()) && ((*oit)->GetId() == object.GetId()))
+        {
+                return (*oit);
+        }
+        else
+        {
+                return NULL;
+        }
+#else
+        return mObjects[id];
+#endif
+}
+
+}

GTP/trunk/Lib/Vis/Preprocessing/src/Preprocessor.h

@@ -147 +147 @@
                                                   const bool pruneInvalidRays = true);
 
-  /** Compute pixel error of the current PVS solution by sampling given number of viewpoints */
-  virtual void
-  ComputeRenderError();
+        /** Compute pixel error of the current PVS solution by sampling given number of viewpoints */
+        virtual void ComputeRenderError();
 
         /** Returns a view cells manager of the given name.
@@ -172 +171 @@
         PreprocessorThread *GetThread() const;
 
+        
+        Intersectable *GetObjectById(const int id);
 
 

GTP/trunk/Lib/Vis/Preprocessing/src/Preprocessor.vcproj

@@ -717 +717 @@
                         </File>
                         <File
-                                RelativePath=".\QtPreprocessorThread.cpp">
-                        </File>
-                        <File
-                                RelativePath=".\QtPreprocessorThread.h">
-                        </File>
-                        <File
                                 RelativePath="..\src\Ray.cpp">
                         </File>

GTP/trunk/Lib/Vis/Preprocessing/src/SceneGraph.cpp

@@ -181 +181 @@
 }
 
+
 }

GTP/trunk/Lib/Vis/Preprocessing/src/SceneGraph.h

@@ -53 +53 @@
         void SetRoot(SceneGraphNode *sgNnode);
 
+
 protected:
 

GTP/trunk/Lib/Vis/Preprocessing/src/Vector3.h

@@ -184 +184 @@
   // Viewer is the coordinates of viewer location, UpL is the vector.
   friend void ViewVectors(const Vector3 &DirAt, const Vector3 &Viewer,
-                          const Vector3 &UpL, Vector3 &ViewV,
-                          Vector3 &ViewU, Vector3 &ViewN );
+                                                  const Vector3 &UpL, Vector3 &ViewV,
+                                                  Vector3 &ViewU, Vector3 &ViewN );
 
   // Given the intersection point `P', you have available normal `N'
@@ -262 +262 @@
 
 
+inline void
+Vector3::RightHandedBase(Vector3& U, Vector3& V) const
+{
+        // HACK
+        V = ArbitraryNormal(*this);
+        U = CrossProd(V, *this);
+}
+
+
 inline Vector3
 ToGlobalFrame(const Vector3 &loc,