//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
BspNode* BspSceneManager::walkTree(Camera* camera,
VisibleObjectsBoundsInfo *visibleBounds, bool onlyShadowCasters)
{
if (mLevel.isNull()) return 0;
// Locate the leaf node where the camera is located
BspNode* cameraNode = mLevel->findLeaf(camera->getDerivedPosition());
mMatFaceGroupMap.clear();
mFaceGroupSet.clear();
// Scan through all the other leaf nodes looking for visibles
int i = mLevel->mNumNodes - mLevel->mLeafStart;
BspNode* nd = mLevel->mRootNode + mLevel->mLeafStart;
/*
if (firstTime)
{
camera->getViewMatrix(); // Force update view before report
of.open("BspSceneManager.log");
of << *camera << std::endl;
of << "Camera Node: " << *cameraNode << std::endl;
of << "Vertex Data: " << std::endl;
for (int testi = 0; testi < mLevel->mNumVertices; ++testi)
{
of << " " << testi << ": pos(" <<
mLevel->mVertices[testi].position[0] << ", " <<
mLevel->mVertices[testi].position[1] << ", " << mLevel->mVertices[testi].position[2] << ")" <<
" uv(" << mLevel->mVertices[testi].texcoords[0] << ", " << mLevel->mVertices[testi].texcoords[1] << ")" <<
" lm(" << mLevel->mVertices[testi].lightmap[0] << ", " << mLevel->mVertices[testi].lightmap[1] << ")" << std::endl;
}
of << "Element data:" << std::endl;
for (testi = 0; testi < mLevel->mNumElements; ++testi)
{
of << " " << testi << ": " << mLevel->mElements[testi] << std::endl;
}
}
*/
while (i--)
{
if (mLevel->isLeafVisible(cameraNode, nd))
{
// Visible according to PVS, check bounding box against frustum
FrustumPlane plane;
if (camera->isVisible(nd->getBoundingBox(), &plane))
{
//if (firstTime)
//{
// of << "Visible Node: " << *nd << std::endl;
//}
processVisibleLeaf(nd, camera, visibleBounds, onlyShadowCasters);
if (mShowNodeAABs)
addBoundingBox(nd->getBoundingBox(), true);
}
}
nd++;
}
// TEST
//if (firstTime)
//{
// of.close();
// firstTime = false;
//}
return cameraNode;
}
