void Octree::initBuild( StdList<BaseTriangle*>& tris, int triPerNode )
{
// add triangles involved to "triangleData"
this->triangleData = LIST_TO_VECTOR(tris);
this->trianglePerNode = triPerNode;
// Create a big box
BoundingBox bb;
bb.computeFromTris(triangleData);
// Transform and scale to node's coordinates
double largeSize = Max(bb.xExtent, Max(bb.yExtent, bb.zExtent));
// Define our bounding box
this->boundingBox = BoundingBox(bb.center, largeSize, largeSize, largeSize);
// Build the tree
this->build();
// Connect children with parent
std::stack<Octree*> childStack;
childStack.push(this);
while(!childStack.empty())
{
Octree * curr = childStack.top(); childStack.pop();
for(int i = 0; i < (int) curr->children.size(); i++)
{
curr->children[i].parent = curr;
childStack.push(&curr->children[i]);
}
}
}
void Octree::init( int triPerNode )
{
this->trianglePerNode = triPerNode;
BoundingBox bb;
bb.computeFromTris(triangleData);
//Transform and scale to node's coordinates
double largeSize = Max(bb.xExtent, Max(bb.yExtent, bb.zExtent));
this->boundingBox = BoundingBox(bb.center, largeSize, largeSize, largeSize);
parent = NULL;
}
