Changeset 191 for trunk/VUT/GtpVisibilityPreprocessor/src/X3dExporter.cpp

Timestamp:

08/03/05 11:15:30 (19 years ago)

Author:

bittner

Message:

basic sampling strategies

File:

• trunk/VUT/GtpVisibilityPreprocessor/src/X3dExporter.cpp (modified) (4 diffs)

trunk/VUT/GtpVisibilityPreprocessor/src/X3dExporter.cpp

@@ -145 +145 @@
 
 
-  if (wireframe)
+  if (mWireframe)
     stream<<"<IndexedLineSet ccw=\"TRUE\" coordIndex=\""<<endl;
   else
@@ -174 +174 @@
   stream<<"</Coordinate>"<<endl;
 
-  if (wireframe)
+  if (mWireframe)
     stream<<"</IndexedLineSet>"<<endl;
   else
@@ -211 +211 @@
 X3dExporter::ExportKdTree(const KdTree &tree)
 {
+  if (mExportRayDensity) {
+    return ExportKdTreeRayDensity(tree);
+  }
+  
   stack<KdNode *> tStack;
 
@@ -249 +253 @@
 
 
+bool
+X3dExporter::ExportKdTreeRayDensity(const KdTree &tree)
+{
+  stack<KdNode *> tStack;
+
+  tStack.push(tree.GetRoot());
+
+  bool fm = mUseForcedMaterial;
+  mUseForcedMaterial = true;
+  mForcedMaterial.mDiffuseColor.g = 1.0f;
+  mForcedMaterial.mDiffuseColor.b = 1.0f;
+  while (!tStack.empty()) {
+    KdNode *node = tStack.top();
+    tStack.pop();
+    if (node->IsLeaf()) {
+      AxisAlignedBox3 box = tree.GetBox(node);
+      Mesh *mesh = new Mesh;
+      
+      // add 6 vertices of the box
+      int index = mesh->mVertices.size();
+      for (int i=0; i < 8; i++) {
+        Vector3 v;
+        box.GetVertex(i, v);
+        mesh->mVertices.push_back(v);
+      }
+      mesh->AddFace(new Face(index + 0, index + 1, index + 3, index + 2) );
+      mesh->AddFace(new Face(index + 0, index + 2, index + 6, index + 4) );
+      mesh->AddFace(new Face(index + 4, index + 6, index + 7, index + 5) );
+      
+      mesh->AddFace(new Face(index + 3, index + 1, index + 5, index + 7) );
+      mesh->AddFace(new Face(index + 0, index + 4, index + 5, index + 1) );
+      mesh->AddFace(new Face(index + 2, index + 3, index + 7, index + 6) );
+
+
+      // set the mesh material according to the ray density
+      KdLeaf *leaf = (KdLeaf *) node;
+      if (leaf->mPassingRays.mRays) {
+        float importance = leaf->mPassingRays.mContributions/(float)leaf->mPassingRays.mRays;
+        //      float importance = leaf->mPassingRays.mContributions/1000.0f;
+        //      float importance = leaf->mPassingRays.mRays/1000.0f;
+        ///(float)leaf->mPassingRays.mRays;
+        // mForcedMaterial.mDiffuseColor.r = log10(leaf->mPassingRays.mRays)/3.0f;
+        mForcedMaterial.mDiffuseColor.r = importance;
+        mForcedMaterial.mDiffuseColor.g = 1.0f - mForcedMaterial.mDiffuseColor.r;
+        ExportMesh(mesh);
+      }
+      delete mesh;
+    } else {
+      KdInterior *interior = (KdInterior *)node;
+      tStack.push(interior->mFront);
+      tStack.push(interior->mBack);
+    }
+  }
+  // restore the state of forced material
+  mUseForcedMaterial = fm;
+  return true;
+}