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OpenSceneGraph/examples/osgposter/PosterPrinter.cpp

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From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
#include <osg/ClusterCullingCallback>
#include <osgDB/ReadFile>
#include <osgDB/WriteFile>
#include <string.h>
#include <iostream>
#include <sstream>
#include "PosterPrinter.h"
/* PagedLoadingCallback: Callback for loading paged nodes while doing intersecting test */
struct PagedLoadingCallback : public osgUtil::IntersectionVisitor::ReadCallback
{
Introduced CMake option OSG_PROVIDE_READFILE option that defaults to ON, but when switched to OFF disables the building of the osgDB::read*File() methods, forcing users to use osgDB::readRef*File() methods. The later is preferable as it closes a potential threading bug when using paging databases in conjunction with the osgDB::Registry Object Cache. This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero. Using osgDB::readREf*File() makes sure the a ref_ptr<> is passed back and the referenceCount never goes to zero. To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File() usage. The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group: bool addChild(Node* child); // old method which can only be used with a Node* tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache and multi-threaded loaded more robust. git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@15164 16af8721-9629-0410-8352-f15c8da7e697
2015-10-22 21:42:19 +08:00
virtual osg::ref_ptr<osg::Node> readNodeFile( const std::string& filename )
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
{
Introduced CMake option OSG_PROVIDE_READFILE option that defaults to ON, but when switched to OFF disables the building of the osgDB::read*File() methods, forcing users to use osgDB::readRef*File() methods. The later is preferable as it closes a potential threading bug when using paging databases in conjunction with the osgDB::Registry Object Cache. This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero. Using osgDB::readREf*File() makes sure the a ref_ptr<> is passed back and the referenceCount never goes to zero. To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File() usage. The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group: bool addChild(Node* child); // old method which can only be used with a Node* tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache and multi-threaded loaded more robust. git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@15164 16af8721-9629-0410-8352-f15c8da7e697
2015-10-22 21:42:19 +08:00
return osgDB::readRefNodeFile( filename );
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
}
};
static osg::ref_ptr<PagedLoadingCallback> g_pagedLoadingCallback = new PagedLoadingCallback;
/* LodCullingCallback: Callback for culling LODs and selecting the highest level */
class LodCullingCallback : public osg::NodeCallback
{
public:
virtual void operator()( osg::Node* node, osg::NodeVisitor* nv )
{
osg::LOD* lod = static_cast<osg::LOD*>(node);
if ( lod && lod->getNumChildren()>0 )
lod->getChild(lod->getNumChildren()-1)->accept(*nv);
}
};
static osg::ref_ptr<LodCullingCallback> g_lodCullingCallback = new LodCullingCallback;
/* PagedCullingCallback: Callback for culling paged nodes and selecting the highest level */
class PagedCullingCallback : public osg::NodeCallback
{
public:
virtual void operator()( osg::Node* node, osg::NodeVisitor* nv )
{
osg::PagedLOD* pagedLOD = static_cast<osg::PagedLOD*>(node);
if ( pagedLOD && pagedLOD->getNumChildren()>0 )
{
unsigned int numChildren = pagedLOD->getNumChildren();
bool updateTimeStamp = nv->getVisitorType()==osg::NodeVisitor::CULL_VISITOR;
if ( nv->getFrameStamp() && updateTimeStamp )
{
double timeStamp = nv->getFrameStamp()?nv->getFrameStamp()->getReferenceTime():0.0;
Converted FrameStamp::g/setFrameNumber from int to uint
2010-12-23 04:11:05 +08:00
unsigned int frameNumber = nv->getFrameStamp()?nv->getFrameStamp()->getFrameNumber():0;
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
pagedLOD->setFrameNumberOfLastTraversal( frameNumber );
pagedLOD->setTimeStamp( numChildren-1, timeStamp );
pagedLOD->setFrameNumber( numChildren-1, frameNumber );
pagedLOD->getChild(numChildren-1)->accept(*nv);
}
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// Request for new child
if ( !pagedLOD->getDisableExternalChildrenPaging() &&
nv->getDatabaseRequestHandler() &&
numChildren<pagedLOD->getNumRanges() )
{
if ( pagedLOD->getDatabasePath().empty() )
{
nv->getDatabaseRequestHandler()->requestNodeFile(
Refactored the way that the DatabasePager passes the Terrain decorator node onto the TerrainTile. The DatabasePager now passes the Terrain pointer into the ReaderWriter's via osgDB::Options object, rather than pushing a NodePath containing the Terrain onto NodeVisitor. This change means that the DatabasePager nolonger needs to observer the whole NodePath and will be lighter and quicker for it. The change also means that ReadFileCallback can now run custom NodeVisitor's on the scene graph without having to worry about TerrainTile's constructing scene graphs prior to the Terrain being assigned. Also changed is the NodeVisitor::DatabaseRequestHandler which now requires a NodePath to the node that you wish to add to rather than just the pointer to the node you wish to add to. This is more robust when handling scenes with multiple parental paths, whereas previously errors could have occurred due to the default of picking the first available parental path. This change means that subclasses of DatabasePager will need to be updated to use this new function entry point.
2011-01-13 03:29:24 +08:00
pagedLOD->getFileName(numChildren), nv->getNodePath(),
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
1.0, nv->getFrameStamp(),
pagedLOD->getDatabaseRequest(numChildren), pagedLOD->getDatabaseOptions() );
}
else
{
nv->getDatabaseRequestHandler()->requestNodeFile(
Refactored the way that the DatabasePager passes the Terrain decorator node onto the TerrainTile. The DatabasePager now passes the Terrain pointer into the ReaderWriter's via osgDB::Options object, rather than pushing a NodePath containing the Terrain onto NodeVisitor. This change means that the DatabasePager nolonger needs to observer the whole NodePath and will be lighter and quicker for it. The change also means that ReadFileCallback can now run custom NodeVisitor's on the scene graph without having to worry about TerrainTile's constructing scene graphs prior to the Terrain being assigned. Also changed is the NodeVisitor::DatabaseRequestHandler which now requires a NodePath to the node that you wish to add to rather than just the pointer to the node you wish to add to. This is more robust when handling scenes with multiple parental paths, whereas previously errors could have occurred due to the default of picking the first available parental path. This change means that subclasses of DatabasePager will need to be updated to use this new function entry point.
2011-01-13 03:29:24 +08:00
pagedLOD->getDatabasePath()+pagedLOD->getFileName(numChildren), nv->getNodePath(),
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
1.0, nv->getFrameStamp(),
pagedLOD->getDatabaseRequest(numChildren), pagedLOD->getDatabaseOptions() );
}
}
}
//node->traverse(*nv);
}
};
static osg::ref_ptr<PagedCullingCallback> g_pagedCullingCallback = new PagedCullingCallback;
/* PosterVisitor: A visitor for adding culling callbacks to newly allocated paged nodes */
PosterVisitor::PosterVisitor()
: osg::NodeVisitor(osg::NodeVisitor::TRAVERSE_ALL_CHILDREN),
_appliedCount(0), _needToApplyCount(0),
_addingCallbacks(true)
{
}
void PosterVisitor::apply( osg::LOD& node )
{
/*if ( !hasCullCallback(node.getCullCallback(), g_lodCullingCallback.get()) )
{
if ( !node.getName().empty() )
{
PagedNodeNameSet::iterator itr = _pagedNodeNames.find( node.getName() );
if ( itr!=_pagedNodeNames.end() )
{
insertCullCallback( node, g_lodCullingCallback.get() );
_appliedCount++;
}
}
}
else if ( !_addingCallbacks )
{
node.removeCullCallback( g_lodCullingCallback.get() );
_appliedCount--;
}*/
traverse( node );
}
void PosterVisitor::apply( osg::PagedLOD& node )
{
if ( !hasCullCallback(node.getCullCallback(), g_pagedCullingCallback.get()) )
{
for ( unsigned int i=0; i<node.getNumFileNames(); ++i )
{
if ( node.getFileName(i).empty() ) continue;
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
PagedNodeNameSet::iterator itr = _pagedNodeNames.find( node.getFileName(i) );
if ( itr!=_pagedNodeNames.end() )
{
node.addCullCallback( g_pagedCullingCallback.get() );
_appliedCount++;
}
break;
}
}
else if ( !_addingCallbacks )
{
node.removeCullCallback( g_pagedCullingCallback.get() );
if ( _appliedCount>0 ) _appliedCount--;
}
traverse( node );
}
/* PosterIntersector: A simple polytope intersector for updating pagedLODs in each image-tile */
PosterIntersector::PosterIntersector( const osg::Polytope& polytope )
: _intersectionVisitor(0), _parent(0), _polytope(polytope)
{}
PosterIntersector::PosterIntersector( double xMin, double yMin, double xMax, double yMax )
: Intersector(osgUtil::Intersector::PROJECTION),
_intersectionVisitor(0), _parent(0)
{
_polytope.add( osg::Plane( 1.0, 0.0, 0.0,-xMin) );
_polytope.add( osg::Plane(-1.0, 0.0, 0.0, xMax) );
_polytope.add( osg::Plane( 0.0, 1.0, 0.0,-yMin) );
_polytope.add( osg::Plane( 0.0,-1.0, 0.0, yMax) );
}
osgUtil::Intersector* PosterIntersector::clone( osgUtil::IntersectionVisitor& iv )
{
osg::Matrix matrix;
if ( iv.getProjectionMatrix() ) matrix.preMult( *iv.getProjectionMatrix() );
if ( iv.getViewMatrix() ) matrix.preMult( *iv.getViewMatrix() );
if ( iv.getModelMatrix() ) matrix.preMult( *iv.getModelMatrix() );
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
osg::Polytope transformedPolytope;
transformedPolytope.setAndTransformProvidingInverse( _polytope, matrix );
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
osg::ref_ptr<PosterIntersector> pi = new PosterIntersector( transformedPolytope );
pi->_intersectionVisitor = &iv;
pi->_parent = this;
return pi.release();
}
bool PosterIntersector::enter( const osg::Node& node )
{
if ( !node.isCullingActive() ) return true;
if ( _polytope.contains(node.getBound()) )
{
if ( node.getCullCallback() )
{
const osg::ClusterCullingCallback* cccb =
dynamic_cast<const osg::ClusterCullingCallback*>( node.getCullCallback() );
if ( cccb && cccb->cull(_intersectionVisitor, 0, NULL) ) return false;
}
return true;
}
return false;
}
void PosterIntersector::reset()
{
_intersectionVisitor = NULL;
Intersector::reset();
}
void PosterIntersector::intersect( osgUtil::IntersectionVisitor& iv, osg::Drawable* drawable )
{
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
if ( !_polytope.contains(drawable->getBoundingBox()) ) return;
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
if ( iv.getDoDummyTraversal() ) return;
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// Find and collect all paged LODs in the node path
osg::NodePath& nodePath = iv.getNodePath();
for ( osg::NodePath::iterator itr=nodePath.begin(); itr!=nodePath.end(); ++itr )
{
osg::PagedLOD* pagedLOD = dynamic_cast<osg::PagedLOD*>(*itr);
if ( pagedLOD )
{
// FIXME: The first non-empty getFileName() is used as the identity of this paged node.
// This should work with VPB-generated terrains but maybe unusable with others.
for ( unsigned int i=0; i<pagedLOD->getNumFileNames(); ++i )
{
if ( pagedLOD->getFileName(i).empty() ) continue;
if ( _parent->_visitor.valid() )
_parent->_visitor->insertName( pagedLOD->getFileName(i) );
break;
}
continue;
}
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
/*osg::LOD* lod = dynamic_cast<osg::LOD*>(*itr);
if ( lod )
{
if ( !lod->getName().empty() && _parent->_visitor.valid() )
_parent->_visitor->insertName( lod->getName() );
}*/
}
}
/* PosterPrinter: The implementation class of high-res rendering */
Fixed warnings
2010-12-13 21:41:42 +08:00
PosterPrinter::PosterPrinter():
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
_outputTiles(false), _outputTileExt("bmp"),
Fixed warnings
2010-12-13 21:41:42 +08:00
_isRunning(false), _isFinishing(false), _lastBindingFrame(0),
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
_currentRow(0), _currentColumn(0),
_camera(0), _finalPoster(0)
{
_intersector = new PosterIntersector(-1.0, -1.0, 1.0, 1.0);
_visitor = new PosterVisitor;
_intersector->setPosterVisitor( _visitor.get() );
}
void PosterPrinter::init( const osg::Camera* camera )
{
if ( _camera.valid() )
init( camera->getViewMatrix(), camera->getProjectionMatrix() );
}
void PosterPrinter::init( const osg::Matrixd& view, const osg::Matrixd& proj )
{
if ( _isRunning ) return;
_images.clear();
_visitor->clearNames();
_tileRows = (int)(_posterSize.y() / _tileSize.y());
_tileColumns = (int)(_posterSize.x() / _tileSize.x());
_currentRow = 0;
_currentColumn = 0;
_currentViewMatrix = view;
_currentProjectionMatrix = proj;
_lastBindingFrame = 0;
_isRunning = true;
_isFinishing = false;
}
void PosterPrinter::frame( const osg::FrameStamp* fs, osg::Node* node )
{
// Add cull callbacks to all existing paged nodes,
// and advance frame when all callbacks are dispatched.
if ( addCullCallbacks(fs, node) )
return;
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
if ( _isFinishing )
{
if ( (fs->getFrameNumber()-_lastBindingFrame)>2 )
{
// Record images and the final poster
recordImages();
if ( _finalPoster.valid() )
{
std::cout << "Writing final result to file..." << std::endl;
osgDB::writeImageFile( *_finalPoster, _outputPosterName );
}
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// Release all cull callbacks to free unused paged nodes
removeCullCallbacks( node );
_visitor->clearNames();
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
_isFinishing = false;
std::cout << "Recording images finished." << std::endl;
}
}
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
if ( _isRunning )
{
// Every "copy-to-image" process seems to be finished in 2 frames.
// So record them and dispatch camera to next tiles.
if ( (fs->getFrameNumber()-_lastBindingFrame)>2 )
{
// Record images and unref them to free memory
recordImages();
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// Release all cull callbacks to free unused paged nodes
removeCullCallbacks( node );
_visitor->clearNames();
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
if ( _camera.valid() )
{
std::cout << "Binding sub-camera " << _currentRow << "_" << _currentColumn
<< " to image..." << std::endl;
bindCameraToImage( _camera.get(), _currentRow, _currentColumn );
if ( _currentColumn<_tileColumns-1 )
{
_currentColumn++;
}
else
{
if ( _currentRow<_tileRows-1 )
{
_currentRow++;
_currentColumn = 0;
}
else
{
_isRunning = false;
_isFinishing = true;
}
}
}
_lastBindingFrame = fs->getFrameNumber();
}
}
}
bool PosterPrinter::addCullCallbacks( const osg::FrameStamp* fs, osg::Node* node )
{
if ( !_visitor->inQueue() || done() )
return false;
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
_visitor->setAddingCallbacks( true );
_camera->accept( *_visitor );
_lastBindingFrame = fs->getFrameNumber();
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
std::cout << "Dispatching callbacks to paged nodes... "
<< _visitor->inQueue() << std::endl;
return true;
}
void PosterPrinter::removeCullCallbacks( osg::Node* node )
{
_visitor->setAddingCallbacks( false );
_camera->accept( *_visitor );
}
void PosterPrinter::bindCameraToImage( osg::Camera* camera, int row, int col )
{
std::stringstream stream;
stream << "image_" << row << "_" << col;
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
osg::ref_ptr<osg::Image> image = new osg::Image;
image->setName( stream.str() );
image->allocateImage( (int)_tileSize.x(), (int)_tileSize.y(), 1, GL_RGBA, GL_UNSIGNED_BYTE );
_images[TilePosition(row,col)] = image.get();
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// Calculate projection matrix offset of each tile
osg::Matrix offsetMatrix =
osg::Matrix::scale(_tileColumns, _tileRows, 1.0) *
osg::Matrix::translate(_tileColumns-1-2*col, _tileRows-1-2*row, 0.0);
camera->setViewMatrix( _currentViewMatrix );
camera->setProjectionMatrix( _currentProjectionMatrix * offsetMatrix );
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// Check intersections between the image-tile box and the model
osgUtil::IntersectionVisitor iv( _intersector.get() );
iv.setReadCallback( g_pagedLoadingCallback.get() );
_intersector->reset();
camera->accept( iv );
if ( _intersector->containsIntersections() )
{
From Jannik Heller, typo fixes git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14826 16af8721-9629-0410-8352-f15c8da7e697
2015-04-08 02:01:12 +08:00
// Apply a cull callback to every paged node obtained, to force the highest level displaying.
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// This will be done by the PosterVisitor, who already records all the paged nodes.
}
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
// Reattach cameras and new allocated images
camera->setRenderingCache( NULL ); // FIXME: Uses for reattaching camera with image, maybe inefficient?
camera->detach( osg::Camera::COLOR_BUFFER );
camera->attach( osg::Camera::COLOR_BUFFER, image.get(), 0, 0 );
}
void PosterPrinter::recordImages()
{
for ( TileImages::iterator itr=_images.begin(); itr!=_images.end(); ++itr )
{
osg::Image* image = (itr->second).get();
if ( _finalPoster.valid() )
{
// FIXME: A stupid way to combine tile images to final result. Any better ideas?
unsigned int row = itr->first.first, col = itr->first.second;
for ( int t=0; t<image->t(); ++t )
{
unsigned char* source = image->data( 0, t );
unsigned char* target = _finalPoster->data( col*(int)_tileSize.x(), t + row*(int)_tileSize.y() );
memcpy( target, source, image->s() * 4 * sizeof(unsigned char) );
}
}
Further work on Bound class/Node::getBound() and Drawable::getBound() and usage in OSG codebase
2014-05-15 00:01:40 +08:00
From Wang Rui, "Attachment is an example of rendering 3D scenes to high resolution screenshots. I uses a queue of Camera objects to do offscreen rendering with the Camera::attach() function. The entire picture is split into many tiles and it will take a few seconds while attaching and detaching cameras with tiles. You may select to output every tile as an image file, or combine them together to create a large poster, for example, a 12800 x 9600 image. Start the program like this: ./osgposter --output-poster --poster output.bmp --tilesize 800 600 --finalsize 8000 6000 cow.osg Adjust the scene camera to a suitable position and press 'p' or 'P' on the keyboard. Wait until sub-cameras dispatching is finished. And the poster file will be created while closing window. A 8000 x 6000 output.bmp will be created to show a fine-printed cow. :) The command below may also help: ./osgposter --help "
2010-12-13 21:37:37 +08:00
if ( _outputTiles )
osgDB::writeImageFile( *image, image->getName()+"."+_outputTileExt );
}
_images.clear();
}
Reference in New Issue Copy Permalink