Changeset 1963

Timestamp:

01/10/07 13:28:42 (17 years ago)

Author:

mattausch

Message:

 

Location:

GTP/trunk/Lib/Vis/Preprocessing/src

Files:

• GlobalLinesRenderer.cpp (modified) (18 diffs)
• GlobalLinesRenderer.h (modified) (1 diff)

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

@@ -6 +6 @@
 #include "GlRenderer.h"
 #include "Exporter.h"
+#include "ViewCellsManager.h"
+
 
 // the devil library
@@ -392 +394 @@
         
         const float sceneSize = Magnitude(bbox.Diagonal());
-        mViewPoint = midPoint + Vector3(0.5 * sceneSize, 0, 0);
+        mViewPoint = midPoint + Vector3(0.5 * sceneSize, 0, 0.5 * sceneSize);
         
         cout << "mid point: " << midPoint << endl;
@@ -399 +401 @@
 
         mNear = 1;
-        mFar = sceneSize;
+        mFar = sceneSize * 2;
         mWidth = sceneSize;
 
@@ -580 +582 @@
 
 void GlobalLinesRenderer::ProcessDepthBuffer(VssRayContainer &vssRays, 
-                                                                                         const bool oldBufferInitialised)
+                                                                                         const bool oldBufferInitialised,
+                                                                                         const int pass)
 {
         GrabDepthBuffer(mNewDepthBuffer, mNewTexture);
@@ -603 +606 @@
         }
 
-        cout << "vp: " << "eye: " << mEyeVec << " left: " << mLeftVec << " up: " << mUpVec << endl;
+        //cout << "vp: " << "eye: " << mEyeVec << " left: " << mLeftVec << " up: " << mUpVec << endl;
 
         for (int y = 0; y < texHeight; ++ y)
@@ -625 +628 @@
                                                                                                                  false);
 
+                        if (!termObj1 && !termObj2) // we do not create a ray
+                                continue;
+
+                        Vector3 clippedOldPt, clippedNewPt;
+
+                        ClipToViewSpaceBox(oldPt, newPt, clippedOldPt, clippedNewPt);
+                        //clippedOldPt = oldPt;
+                        //clippedNewPt = newPt;
+
                         // create rays in both directions
                         if (termObj1)
                         {
-                                vssRays.push_back(new VssRay(oldPt, newPt, NULL, termObj1));
+                                vssRays.push_back(new VssRay(clippedOldPt, clippedNewPt, NULL, termObj1, pass));
                                 //cout << "new pt: " << newPt << endl;
                         }
@@ -634 +646 @@
                         if (termObj2)
                         {
-                                vssRays.push_back(new VssRay(newPt, oldPt, NULL, termObj2));
+                                vssRays.push_back(new VssRay(clippedNewPt, clippedOldPt, NULL, termObj2, pass));
                                 //cout << "old pt: " << oldPt << endl;
                         }
@@ -642 +654 @@
 
 
+bool GlobalLinesRenderer::ClipToViewSpaceBox(const Vector3 &origin,
+                                                                                         const Vector3 &termination,
+                                                                                         Vector3 &clippedOrigin,
+                                                                                         Vector3 &clippedTermination)
+{
+        Ray ray(origin, termination - origin, Ray::LINE_SEGMENT);       
+        ray.Precompute();
+        
+        float tmin, tmax;
+        
+        //const AxisAlignedBox3 bbox = mPreprocessor->mViewCellsManager->GetViewSpaceBox();
+        // hack
+        const AxisAlignedBox3 bbox = mPreprocessor->mKdTree->GetBox();
+
+        if ((!bbox.ComputeMinMaxT(ray, &tmin, &tmax)) ||
+                tmin>=tmax)
+        {
+                return false;
+        }
+        
+        if (tmin >= 1.0f || tmax <=0.0f)
+                return false;
+
+        if (tmin > 0.0f)
+                clippedOrigin = ray.Extrap(tmin);
+        else
+                clippedOrigin = origin;
+
+        if (tmax < 1.0f)
+                clippedTermination = ray.Extrap(tmax);
+        else
+                clippedTermination = termination;
+
+        return true;
+}
+
+
 void GlobalLinesRenderer::Run()
 {
         glutMainLoop();
-}
-
-
-void SetupFalseColor(const unsigned int id, 
-                                         unsigned char &r,
-                                         unsigned char &g,
-                                         unsigned char &b
-                                         )
-{
-        // swap bits of the color
-        r = id & 255;
-        g = (id >> 8) & 255;
-        b = (id >> 16) & 255;
 }
 
@@ -673 +709 @@
 
         VssRayContainer::const_iterator vit, vit_end = vssRays.end();
+        VssRayContainer outRays;
+
+        Intersectable::NewMail();
 
         for (vit = vssRays.begin(); vit != vit_end; ++ vit)
         {
                 VssRay *ray = *vit;
-                Intersectable *obj = (*vit)->mTerminationObject;        
-                exporter->ExportIntersectable(obj);
+                Intersectable *obj = (*vit)->mTerminationObject;
+
+                if (!obj->Mailed())
+                {
+                        obj->Mail();
+                        exporter->ExportIntersectable(obj);
+                }
+
+                if (ray->mPass == 4)
+                        outRays.push_back(ray);
         }       
 
-        exporter->ExportRays(vssRays);
+        exporter->ExportRays(outRays);
 
         delete exporter;
@@ -691 +738 @@
         rt->BindDepth();
         rt->EnableTextureTarget();
-        cout << "depth: " << mNewTexture->GetDepthBits() << endl;
+        //cout << "depth: " << mNewTexture->GetDepthBits() << endl;
 
         const int texFormat = GL_DEPTH_COMPONENT;
@@ -727 +774 @@
         glGetTexImage(mNewTexture->GetTextureTarget(), 0, texFormat, GL_FLOAT, data);
 
-        /*for (int i = texWidth * 123; i < texWidth * 124; ++ i)
-        {
-                cout << data[i] << " ";
-        }
-        cout << "Saving image " << texWidth << " " << texHeight << endl;
-*/
         string filename("depth.tga");
         ilRegisterType(IL_FLOAT);
@@ -749 +790 @@
 }
 
-/*
+
 void GlobalLinesRenderer::ExportItemBuffer()
 {
@@ -758 +799 @@
         const int components = 4;//mNewTexture->GetDepthBits() / 8;
 
-        float *data = new float[texWidth * texHeight * components*8];
+        unsigned char *data = new unsigned char [texWidth * texHeight * components];
+        //const int texFormat = WGL_TEXTURE_DEPTH_COMPONENT_NV;
         const int texFormat = GL_RGBA;
-        glGetTexImage(mNewTexture->GetTextureTarget(), 0, texFormat, GL_FLOAT, data);
-
-        string filename("items.tga");
-        ilRegisterType(IL_FLOAT);
+        glGetTexImage(mNewTexture->GetTextureTarget(), 0, texFormat, GL_UNSIGNED_BYTE, data);
+
+        string filename("items.jpg");
+        ilRegisterType(IL_UNSIGNED_BYTE);
 
         const int depth = 1;
         const int bpp = components;
 
-        cout << "saving items to file " << endl;
-
-        ilTexImage(16, 16, depth, bpp, IL_RGBA, IL_FLOAT, data);
+        ilTexImage(texWidth, texHeight, depth, bpp, IL_RGBA, IL_UNSIGNED_BYTE, data);
         ilSaveImage((char *const)filename.c_str());
 
@@ -779 +819 @@
         PrintGLerror("grab texture");
 }
-*/
-void GlobalLinesRenderer::ExportItemBuffer()
-{
-        mNewTexture->Bind();
-        mNewTexture->EnableTextureTarget();
-        cout << "depth: " << mNewTexture->GetDepthBits() << endl;
-
-        const int components = 4;//mNewTexture->GetDepthBits() / 8;
-
-        unsigned char *data = new unsigned char [texWidth * texHeight * components];
-        //const int texFormat = WGL_TEXTURE_DEPTH_COMPONENT_NV;
-        const int texFormat = GL_RGBA;
-        glGetTexImage(mNewTexture->GetTextureTarget(), 0, texFormat, GL_UNSIGNED_BYTE, data);
-
-        string filename("items.jpg");
-        ilRegisterType(IL_UNSIGNED_BYTE);
-
-        const int depth = 1;
-        const int bpp = components;
-
-        ilTexImage(texWidth, texHeight, depth, bpp, IL_RGBA, IL_UNSIGNED_BYTE, data);
-        ilSaveImage((char *const)filename.c_str());
-
-        cout << "finished" << endl;
-        delete data;
-        cout << "data deleted" << endl;
-        mNewTexture->DisableTextureTarget();
-        PrintGLerror("grab texture");
-}
 
 
@@ -826 +837 @@
 
         // process the buffers for the first layer
-        ProcessDepthBuffer(rays, false);
-
-        for(int i = 0; i < mMaxDepth; ++ i) 
+        ProcessDepthBuffer(rays, false, 0);
+
+        for(int i = 1; i < mMaxDepth; ++ i) 
         {
                 // Peel another layer
@@ -836 +847 @@
                 mNewTexture->BeginCapture();
                 {
-                        //if (mNewTexture->IsDoubleBuffered()) 
-                        //      glDrawBuffer(GL_BACK);
-
                         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);         
 
@@ -846 +854 @@
                         cgGLEnableTextureParameter(sTextureParam);
 
-                        //glutSolidTorus(0.25, 1, 32, 64);
                         DrawGeometry();
                         
-                        glPopMatrix();
-
                         cgGLDisableTextureParameter(sTextureParam);
                         cgGLDisableProfile(sCgFragmentProfile);
@@ -856 +861 @@
                 mNewTexture->EndCapture();
 
-                CLEAR_CONTAINER(rays);
                 // process the buffers for following layer
-                ProcessDepthBuffer(rays, true);
+                ProcessDepthBuffer(rays, true, i);
         }
 

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

@@ -54 +54 @@
         void ExportDepthBuffer();
         void ExportItemBuffer();
-        void ProcessDepthBuffer(VssRayContainer &vssRays, const bool oldBufferInitialised);
+        void ProcessDepthBuffer(VssRayContainer &vssRays, const bool oldBufferInitialised, const int pass);
         void DisplayBuffer(const bool isDepth);
         
+        bool ClipToViewSpaceBox(const Vector3 &origin,
+                                                        const Vector3 &termination,
+                                                        Vector3 &clippedOrigin,
+                                                        Vector3 &clippedTermination);
+
         Intersectable *ExtractSamplePoint(float *depthBuffer,
                                                                           unsigned char *itemBuffer,