void DumpNodes(std::stringstream &ss, Ogre::Node *n, int level)
{
for (int i = 0; i < level; i++)
{
ss << " ";
}
ss << "SceneNode: " << n->getName() << std::endl;
Ogre::SceneNode::ObjectIterator object_it = ((Ogre::SceneNode *)n)->getAttachedObjectIterator();
Ogre::Node::ChildNodeIterator node_it = n->getChildIterator();
Ogre::MovableObject *m;
while (object_it.hasMoreElements())
{
for (int i = 0; i < level + 2; i++)
{
ss << " ";
}
m = object_it.getNext();
ss << m->getMovableType() << ": " << m->getName() << std::endl;
}
while (node_it.hasMoreElements())
{
DumpNodes(ss, node_it.getNext(), level + 2);
}
}
//!
//! Creates a deep copy of the given scene node.
//!
//! \param sceneNode The scene node to copy.
//! \param sceneNodeCopy The scene node to add the copied objects to (will be created if 0).
//! \param namePrefix The prefix to use for names of copied objects.
//! \param sceneManager The scene manager to use for creating the object.
//!
void OgreTools::deepCopySceneNode ( Ogre::SceneNode *sceneNode, Ogre::SceneNode *&sceneNodeCopy, const QString &namePrefix, Ogre::SceneManager *sceneManager /* = 0 */ )
{
// make sure the given scene node is valid
if (!sceneNode) {
Log::error("The given scene node is invalid.", "OgreTools::deepCopySceneNode");
return;
}
// make sure a valid scene manager is available
if (!sceneManager)
sceneManager = sceneNode->getCreator();
if (!sceneManager) {
Log::error("No valid scene manager available.", "OgreTools::deepCopySceneNode");
return;
}
// create the target scene node if it doesn't exist yet
if (!sceneNodeCopy) {
QString sceneNodeCopyName = QString("%1_%2Copy").arg(namePrefix).arg(sceneNode->getName().c_str());
sceneNodeCopy = copySceneNode(sceneNode, sceneNodeCopyName, sceneManager);
if (!sceneNodeCopy) {
Log::error("The scene node could not be copied.", "OgreTools::deepCopySceneNode");
return;
}
}
// iterate over the list of attached objects
Ogre::SceneNode::ObjectIterator objectIterator = sceneNode->getAttachedObjectIterator();
while (objectIterator.hasMoreElements()) {
Ogre::MovableObject *movableObject = objectIterator.getNext();
if (movableObject) {
QString entityCopyName = QString("%1_%2Copy").arg(namePrefix).arg(movableObject->getName().c_str());
Ogre::MovableObject *movableObjectCopy = cloneMovableObject(movableObject, entityCopyName, sceneManager);
if (movableObjectCopy)
sceneNodeCopy->attachObject(movableObjectCopy);
}
}
// iterate over the list of child nodes
Ogre::SceneNode::ChildNodeIterator childNodeIterator = sceneNode->getChildIterator();
while (childNodeIterator.hasMoreElements() ) {
Ogre::SceneNode *childSceneNode = (Ogre::SceneNode *) childNodeIterator.getNext();
QString childSceneNodeCopyName = QString("%1_%2Copy").arg(namePrefix).arg(childSceneNode->getName().c_str());
Ogre::SceneNode *childSceneNodeCopy = copySceneNode(childSceneNode, childSceneNodeCopyName, sceneManager);
if (childSceneNodeCopy) {
sceneNodeCopy->addChild(childSceneNodeCopy);
deepCopySceneNode(childSceneNode, childSceneNodeCopy, namePrefix, sceneManager);
}
}
}
//该函数不支持多线程
string BaseManager::pickMovableObject( int x,int y ){
//如果相同的帧同时相同的x,y就直接返回结果
if( mPickFrameCount == getFrameCount() &&
mPickX == x && mPickY == y ){
return mPickName;
}
mRay = mCamera->getCameraToViewportRay(
(Ogre::Real)x/(Ogre::Real)mWindow->getWidth(),
(Ogre::Real)y/(Ogre::Real)mWindow->getHeight()
);
mSceneQuery->setRay( mRay );
//距离排序
mSceneQuery->setSortByDistance(true);
Ogre::RaySceneQueryResult result = mSceneQuery->execute();
//execute不能执行像素级的查询，它仅仅是和包围盒进行比较
//可以考虑使用渲染到纹理，使用1x1的纹理来对查询结果进行像素级别的查询
//这里使用逐个求交点的办法
Ogre::MovableObject* pmo = nullptr;
Ogre::Real dis;
for( size_t i = 0;i < result.size();++i ){
if( result[i].movable &&
result[i].movable->isVisible() && //不可见的
result[i].movable->isInScene() ){ //不在场景中的
mIntersect = false;
result[i].movable->visitRenderables(this);
if( mIntersect ){
//考虑到同一帧中间有多个地方的代码需要调用该函数
//这样使用内存换速度
if( !pmo || dis>mIntersectDistance ){
dis = mIntersectDistance;
pmo = result[i].movable;
}
}
}
}
if( pmo ){
mPickX = x;
mPickY = y;
mPickFrameCount = getFrameCount();
mPickName = pmo->getName();
return mPickName;
}
//返回一个空字串表示没有
return "";
}
void RenderBoxWrap::removeNode(Ogre::SceneNode* _node)
{
//System::Console::WriteLine("remove node {0}", gcnew System::String(_node->getName().c_str()));
while(_node->numAttachedObjects() != 0)
{
Ogre::MovableObject* object = _node->getAttachedObject(0);
removeEntity(object->getName());
}
while (_node->numChildren() != 0)
{
Ogre::SceneNode* forDelete = (Ogre::SceneNode*)_node->getChild(0);
removeNode(forDelete);
}
_node->getParentSceneNode()->removeAndDestroyChild(_node->getName());
}
bool CollisionTools::raycast(const Ogre::Ray &ray, Ogre::Vector3 &result,Ogre::MovableObject* &target,float &closest_distance, const Ogre::uint32 queryMask)
{
target = NULL;
// check we are initialised
if (mRaySceneQuery != NULL)
{
// create a query object
mRaySceneQuery->setRay(ray);
mRaySceneQuery->setSortByDistance(true);
mRaySceneQuery->setQueryMask(queryMask);
// execute the query, returns a vector of hits
if (mRaySceneQuery->execute().size() <= 0)
{
// raycast did not hit an objects bounding box
return (false);
}
}
else
{
//LOG_ERROR << "Cannot raycast without RaySceneQuery instance" << ENDLOG;
return (false);
}
// at this point we have raycast to a series of different objects bounding boxes.
// we need to test these different objects to see which is the first polygon hit.
// there are some minor optimizations (distance based) that mean we wont have to
// check all of the objects most of the time, but the worst case scenario is that
// we need to test every triangle of every object.
//Ogre::Ogre::Real closest_distance = -1.0f;
closest_distance = -1.0f;
Ogre::Vector3 closest_result;
Ogre::RaySceneQueryResult &query_result = mRaySceneQuery->getLastResults();
#if 0
for (size_t qr_idx = 0; qr_idx < query_result.size(); qr_idx++)
{
const Ogre::RaySceneQueryResultEntry& result = query_result[qr_idx];
Ogre::Real distance = result.distance;
Ogre::MovableObject* movable = static_cast<Ogre::MovableObject*>(result.movable);
Ogre::SceneQuery::WorldFragment* worldFragment = result.worldFragment;
if (movable)
{
const Ogre::String& type = movable->getMovableType();
const Ogre::String& name = movable->getName();
const Ogre::String& parentName = movable->getParentNode()->getName();
Ogre::uint32 flag = movable->getQueryFlags();
if (type.compare("Entity") == 0)
{
Ogre::Entity* ent = (Ogre::Entity*)movable;
}
std::ostrstream oss;
oss<<"name:"<<name<<" distance:"<< distance <<" type:"<<type<<" flag:"<<flag<<" parent:"<<parentName<<std::endl;
OutputDebugString(oss.str() );
}
}
#endif
for (size_t qr_idx = 0; qr_idx < query_result.size(); qr_idx++)
{
// stop checking if we have found a raycast hit that is closer
// than all remaining entities
if ((closest_distance >= 0.0f) &&
(closest_distance < query_result[qr_idx].distance))
{
break;
}
// only check this result if its a hit against an entity
if ((query_result[qr_idx].movable != NULL) &&
(query_result[qr_idx].movable->getMovableType().compare("Entity") == 0))
{
// get the entity to check
Ogre::MovableObject *pentity = static_cast<Ogre::MovableObject*>(query_result[qr_idx].movable);
// mesh data to retrieve
size_t vertex_count;
size_t index_count;
Ogre::Vector3 *vertices = NULL;
Ogre::uint32 *indices = NULL;
// get the mesh information
GetMeshInformation(((Ogre::Entity*)pentity)->getMesh(), vertex_count, vertices, index_count, indices,
pentity->getParentNode()->_getDerivedPosition(),
pentity->getParentNode()->_getDerivedOrientation(),
pentity->getParentNode()->_getDerivedScale());
// test for hitting individual triangles on the mesh
bool new_closest_found = false;
for (size_t i = 0; i < index_count; i += 3)
{
// check for a hit against this triangle
std::pair<bool, Ogre::Real> hit = Ogre::Math::intersects(ray, vertices[indices[i]],
vertices[indices[i+1]], vertices[indices[i+2]], true, false);
// if it was a hit check if its the closest
if (hit.first)
{
if ((closest_distance < 0.0f) ||
(hit.second < closest_distance))
{
// this is the closest so far, save it off
closest_distance = hit.second;
new_closest_found = true;
}
}
}
// free the verticies and indicies memory
delete vertices;
delete indices;
// if we found a new closest raycast for this object, update the
// closest_result before moving on to the next object.
if (new_closest_found)
{
target = pentity;
closest_result = ray.getPoint(closest_distance);
}
}
}
// return the result
if (closest_distance >= 0.0f)
{
// raycast success
result = closest_result;
return (true);
}
else
{
// raycast failed
return (false);
}
}
void OgreInfo::diagnose(std::ostream& outputStream)
{
Ogre::SceneManagerEnumerator::SceneManagerIterator sceneManagerI = Ogre::Root::getSingleton().getSceneManagerIterator();
while (sceneManagerI.hasMoreElements()) {
Ogre::SceneManager* sceneManager = sceneManagerI.getNext();
outputStream << "Scenemanager(" << sceneManager->getTypeName() << ") " << sceneManager->getName() << std::endl;
outputStream << " Number of scene nodes: " << countNodes(sceneManager->getRootSceneNode()) << std::endl;
outputStream << " Movable objects:" << std::endl;
unsigned int movableObjectCounter = 0;
Ogre::Root::MovableObjectFactoryIterator movableObjectFactoryI = Ogre::Root::getSingleton().getMovableObjectFactoryIterator();
while (movableObjectFactoryI.hasMoreElements()) {
Ogre::MovableObjectFactory* factory = movableObjectFactoryI.getNext();
std::string type(factory->getType());
{
Ogre::SceneManager::MovableObjectIterator I = sceneManager->getMovableObjectIterator(type);
while (I.hasMoreElements()) {
movableObjectCounter++;
Ogre::MovableObject* movable = I.getNext();
if (movable->getMovableType() == "Light") {
Ogre::Light* light = static_cast<Ogre::Light*> (movable);
outputStream << " * Light " << light->getName() << "(" << (light->isInScene() ? "in scene" : "not in scene") << ")" << std::endl;
outputStream << " Pos: " << light->getDerivedPosition() << std::endl;
outputStream << " Direction: " << light->getDerivedDirection() << std::endl;
} else {
std::stringstream ssPosAndOrientation;
if (movable->getParentSceneNode() && movable->isInScene()) {
ssPosAndOrientation << " pos: " << movable->getParentSceneNode()->getPosition() << " orientation: " << movable->getParentSceneNode()->getOrientation();
}
outputStream << " * " << type << " " << movable->getName() << "(" << (movable->isInScene() ? "in scene" : "not in scene") << ")" << ssPosAndOrientation.str() << std::endl;
// outputStream << " Pos: " << light->getDerivedPosition() << std::endl;
// outputStream << " Direction: " << light->getDerivedDirection() << std::endl;
}
}
}
}
outputStream << " Number of movable objects: " << movableObjectCounter << std::endl;
outputStream << " Cameras:" << std::endl;
{
Ogre::SceneManager::CameraIterator I = sceneManager->getCameraIterator();
while (I.hasMoreElements()) {
Ogre::Camera* camera = I.getNext();
outputStream << " Camera " << camera->getName() << "(" << (camera->isInScene() ? "in scene" : "not in scene") << ")" << std::endl;
outputStream << " Pos: " << camera->getDerivedPosition() << std::endl;
outputStream << " Direction: " << camera->getDerivedDirection() << std::endl;
outputStream << " Clip distances: " << camera->getNearClipDistance() << " - " << camera->getFarClipDistance() << std::endl;
}
}
}
size_t resourceMemoryUsage = 0;
outputStream << "Resource Managers:" << std::endl;
Ogre::ResourceGroupManager::ResourceManagerIterator I = Ogre::ResourceGroupManager::getSingleton().getResourceManagerIterator();
while (I.hasMoreElements()) {
std::string name = I.peekNextKey();
Ogre::ResourceManager* manager = I.getNext();
outputStream << " Resource Manager: " << name << std::endl;
if (manager->getMemoryBudget() == std::numeric_limits<size_t>::max()) {
outputStream << " Memory budget: not set" << std::endl;
} else {
outputStream << " Memory budget: " << manager->getMemoryBudget() << " bytes" << std::endl;
}
outputStream << " Memory usage: " << manager->getMemoryUsage() << " bytes" << std::endl;
resourceMemoryUsage += manager->getMemoryUsage();
Ogre::ResourceManager::ResourceMapIterator resourceI = manager->getResourceIterator();
if (resourceI.hasMoreElements()) {
outputStream << " Resources: " << std::endl;
int resourceCount = 0;
int loadedResourceCount = 0;
while (resourceI.hasMoreElements()) {
Ogre::ResourcePtr resource = resourceI.getNext();
if (resource->isLoaded()) {
std::string reloadable = resource->isReloadable() ? " reloadable" : "";
outputStream << " " << resource->getName() << " ( " << resource->getSize() << " bytes)" << reloadable;
Ogre::Texture* texture = dynamic_cast<Ogre::Texture*>(resource.get());
if (texture) {
outputStream << texture->getWidth() << "x" << texture->getHeight() << " ";
}
outputStream << std::endl;
loadedResourceCount++;
}
resourceCount++;
}
outputStream << " Total number of resources: " << resourceCount << std::endl;
outputStream << " Number of loaded resources: " << loadedResourceCount << std::endl;
}
}
outputStream << "Total memory usage for all resource manager: " << resourceMemoryUsage << " bytes" << std::endl;
outputStream << std::flush;
}
Ogre::String ObjectControl::mouseDragged (QPoint lastPos,QPoint currPos,float w,float h)
{
using namespace Ogre;
float RatioX = float(lastPos.x())/w;
float RatioY = float(lastPos.y())/h;
Ray mouseRay = mCamera->getCameraToViewportRay(RatioX,RatioY);
mRaySceneQuery->setRay(mouseRay);
mRaySceneQuery->setSortByDistance(true);
mRaySceneQuery->setQueryMask(DUMMY_PLANE);
mRaySceneQuery->setQueryTypeMask(SceneManager::ENTITY_TYPE_MASK);
RaySceneQueryResult &result = mRaySceneQuery->execute();
Ogre::MovableObject *closestObject = NULL;
Real closestDistance = 100000;
Ogre::RaySceneQueryResult::iterator rayIterator= result.begin();
for( rayIterator; rayIterator != result.end(); rayIterator++ )
{
if ( (*rayIterator).movable !=NULL && closestDistance>(*rayIterator).distance )
{
closestObject = ( *rayIterator ).movable;
Ogre::String name = closestObject->getName();
Ogre::Vector3 newpos = Ogre::Vector3::ZERO;
float rotateFactor = 0.0f;
float scaleFactor = 0.0f;
switch( currntOperation )
{
//==== 處理物體平移 ====//
case MoveX:
if ( name != "dummy_plane_y" ) continue;
newpos = mouseRay.getPoint((*rayIterator).distance);
node->setPosition(newpos.x,node->getPosition().y,node->getPosition().z);
break;
case MoveY:
if( name == "dummy_plane_y" ) continue;
newpos = mouseRay.getPoint((*rayIterator).distance);
node->setPosition(node->getPosition().x,newpos.y-node->_getWorldAABB().getHalfSize().y,node->getPosition().z);
break;
case MoveZ:
if( name != "dummy_plane_y" ) continue;
newpos = mouseRay.getPoint((*rayIterator).distance);
node->setPosition(node->getPosition().x,node->getPosition().y,newpos.z);
break;
//==== 處理物體旋轉 ====//
case RotateX:
rotateFactor = 1*(currPos.y()-lastPos.y());
node->pitch(Ogre::Degree(rotateFactor),Node::TS_WORLD);
break;
case RotateY:
rotateFactor = 1*(currPos.x()-lastPos.x());
node->yaw(Ogre::Degree(rotateFactor),Node::TS_WORLD);
break;
case RotateZ:
rotateFactor = 1*(currPos.y()-lastPos.y());
node->roll(Ogre::Degree(rotateFactor),Node::TS_WORLD);
break;
//==== 處理物體縮放 ====//
case ScaleX:
scaleFactor = 1+0.001*(currPos.x()-lastPos.x());
node->scale(scaleFactor,1,1);
break;
case ScaleY:
scaleFactor = 1-0.001*(currPos.y()-lastPos.y());
node->scale(1,scaleFactor,1);
break;
case ScaleZ:
scaleFactor = 1+0.001*(currPos.x()-lastPos.x());
node->scale(1,1,scaleFactor);
break;
case ScaleXYZ:
scaleFactor = 1+0.001*(currPos.x()-lastPos.x());
node->scale(scaleFactor,scaleFactor,scaleFactor);
break;
}
update();
}
}
mRaySceneQuery->clearResults();
return (node==NULL)?"":node->getName();
}
