674 lines
23 KiB
C++
674 lines
23 KiB
C++
/* OpenSceneGraph example, osgstereoimage.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*/
|
|
|
|
#include <osgViewer/Viewer>
|
|
#include <osgDB/fstream>
|
|
#include <osgDB/ReadFile>
|
|
#include <osgDB/WriteFile>
|
|
#include <osgUtil/Optimizer>
|
|
|
|
#include <osg/ImageStream>
|
|
#include <osg/Geode>
|
|
#include <osg/Notify>
|
|
#include <osg/MatrixTransform>
|
|
#include <osg/Switch>
|
|
#include <osg/TexMat>
|
|
#include <osg/Texture2D>
|
|
|
|
#include <iostream>
|
|
|
|
typedef std::vector<std::string> FileList;
|
|
|
|
#include <osg/Program>
|
|
#include <osg/Shader>
|
|
|
|
osg::StateSet* createColorToGreyscaleStateSet()
|
|
{
|
|
osg::StateSet* stateset = new osg::StateSet;
|
|
|
|
osg::Program* program = new osg::Program;
|
|
stateset->setAttribute(program);
|
|
|
|
const char* fragSource =
|
|
{
|
|
"uniform sampler2D baseTexture;\n"
|
|
"uniform mat4 colorMatrix;\n"
|
|
"void main(void)\n"
|
|
"{\n"
|
|
" vec4 color = texture2D( baseTexture, gl_TexCoord[0].st );\n"
|
|
" gl_FragColor = colorMatrix * color;\n"
|
|
"}\n"
|
|
};
|
|
program->addShader(new osg::Shader(osg::Shader::FRAGMENT, fragSource));
|
|
|
|
stateset->addUniform(new osg::Uniform("baseTexture",0));
|
|
|
|
osg::Matrixf colorMatrix(
|
|
0.3f, 0.3f, 0.3f, 0.0f,
|
|
0.59f, 0.59f, 0.59f, 0.0f,
|
|
0.11f, 0.11f, 0.11f, 0.0f,
|
|
0.0f, 0.0f, 0.0f, 1.0f
|
|
);
|
|
|
|
stateset->addUniform(new osg::Uniform("colorMatrix",colorMatrix));
|
|
|
|
return stateset;
|
|
}
|
|
|
|
|
|
osg::Geode* createSectorForImage(osg::Image* image, osg::TexMat* texmat, float s,float t, float radius, float height, float length)
|
|
{
|
|
bool flip = image->getOrigin()==osg::Image::TOP_LEFT;
|
|
|
|
int numSegments = 20;
|
|
float Theta = length/radius;
|
|
float dTheta = Theta/(float)(numSegments-1);
|
|
|
|
float ThetaZero = height*s/(t*radius);
|
|
|
|
// set up the texture.
|
|
osg::Texture2D* texture = new osg::Texture2D;
|
|
texture->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR);
|
|
texture->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR);
|
|
texture->setWrap(osg::Texture2D::WRAP_S,osg::Texture2D::CLAMP_TO_BORDER);
|
|
texture->setWrap(osg::Texture2D::WRAP_T,osg::Texture2D::CLAMP_TO_BORDER);
|
|
texture->setResizeNonPowerOfTwoHint(false);
|
|
texture->setImage(image);
|
|
|
|
// set up the drawstate.
|
|
osg::StateSet* dstate = new osg::StateSet;
|
|
dstate->setMode(GL_CULL_FACE,osg::StateAttribute::OFF);
|
|
dstate->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
|
|
dstate->setTextureAttributeAndModes(0, texture,osg::StateAttribute::ON);
|
|
dstate->setTextureAttribute(0, texmat);
|
|
|
|
// set up the geoset.
|
|
osg::Geometry* geom = new osg::Geometry;
|
|
geom->setStateSet(dstate);
|
|
|
|
osg::Vec3Array* coords = new osg::Vec3Array();
|
|
osg::Vec2Array* tcoords = new osg::Vec2Array();
|
|
|
|
int i;
|
|
float angle = -Theta/2.0f;
|
|
for(i=0;
|
|
i<numSegments;
|
|
++i, angle+=dTheta)
|
|
{
|
|
coords->push_back(osg::Vec3(sinf(angle)*radius,cosf(angle)*radius,height*0.5f)); // top
|
|
coords->push_back(osg::Vec3(sinf(angle)*radius,cosf(angle)*radius,-height*0.5f)); // bottom.
|
|
|
|
tcoords->push_back(osg::Vec2(angle/ThetaZero+0.5f, flip ? 0.0f : 1.0f)); // top
|
|
tcoords->push_back(osg::Vec2(angle/ThetaZero+0.5f, flip ? 1.0f : 0.0f)); // bottom.
|
|
|
|
}
|
|
|
|
osg::Vec4Array* colors = new osg::Vec4Array();
|
|
colors->push_back(osg::Vec4(1.0f,1.0f,1.0f,1.0f));
|
|
|
|
osg::DrawArrays* elements = new osg::DrawArrays(osg::PrimitiveSet::QUAD_STRIP,0,coords->size());
|
|
|
|
|
|
|
|
geom->setVertexArray(coords);
|
|
geom->setTexCoordArray(0,tcoords);
|
|
geom->setColorArray(colors, osg::Array::BIND_OVERALL);
|
|
|
|
geom->addPrimitiveSet(elements);
|
|
|
|
// set up the geode.
|
|
osg::Geode* geode = new osg::Geode;
|
|
geode->addDrawable(geom);
|
|
|
|
return geode;
|
|
|
|
}
|
|
|
|
osg::Group * loadImages(std::string image1, std::string image2, osg::TexMat* texmatLeft, osg::TexMat* texmatRight, float radius, float height, float length)
|
|
{
|
|
osg::ref_ptr<osg::Image> imageLeft = osgDB::readImageFile(image1);
|
|
osg::ref_ptr<osg::Image> imageRight = osgDB::readImageFile(image2);
|
|
if (imageLeft.valid() && imageRight.valid())
|
|
{
|
|
osg::ImageStream* streamLeft = dynamic_cast<osg::ImageStream*>(imageLeft.get());
|
|
if (streamLeft) streamLeft->play();
|
|
|
|
osg::ImageStream* streamRight = dynamic_cast<osg::ImageStream*>(imageRight.get());
|
|
if (streamRight) streamRight->play();
|
|
|
|
|
|
float average_s = (imageLeft->s()+imageRight->s())*0.5f;
|
|
float average_t = (imageLeft->t()+imageRight->t())*0.5f;
|
|
osg::Geode* geodeLeft = createSectorForImage(imageLeft.get(),texmatLeft,average_s,average_t, radius, height, length);
|
|
geodeLeft->setNodeMask(0x01);
|
|
|
|
osg::Geode* geodeRight = createSectorForImage(imageRight.get(),texmatRight,average_s,average_t, radius, height, length);
|
|
geodeRight->setNodeMask(0x02);
|
|
|
|
osg::Group * imageGroup = new osg::Group;
|
|
|
|
imageGroup->addChild(geodeLeft);
|
|
imageGroup->addChild(geodeRight);
|
|
return imageGroup;
|
|
}
|
|
else
|
|
{
|
|
std::cout << "Warning: Unable to load both image files, '"<<image1<<"' & '"<<image2<<"', required for stereo imaging."<<std::endl;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// create a switch containing a set of child each containing a
|
|
// stereo image pair.
|
|
osg::Switch* createScene(FileList fileList, osg::TexMat* texmatLeft, osg::TexMat* texmatRight, float radius, float height, float length)
|
|
{
|
|
osg::Switch* sw = new osg::Switch;
|
|
|
|
// load the images.
|
|
for(unsigned int i=0;i+1<fileList.size();i+=2)
|
|
{
|
|
osg::Group * imageGroup = loadImages(fileList[i],fileList[i+1],texmatLeft,texmatRight, radius, height, length);
|
|
if (imageGroup) sw->addChild(imageGroup);
|
|
}
|
|
|
|
|
|
if (sw->getNumChildren()>0)
|
|
{
|
|
// select first child.
|
|
sw->setSingleChildOn(0);
|
|
}
|
|
|
|
return sw;
|
|
}
|
|
|
|
class SlideEventHandler : public osgGA::GUIEventHandler
|
|
{
|
|
public:
|
|
|
|
SlideEventHandler();
|
|
|
|
META_Object(osgStereImageApp,SlideEventHandler);
|
|
|
|
|
|
void set(osg::Switch* sw, float offsetX, float offsetY, osg::TexMat* texmatLeft, osg::TexMat* texmatRight, float timePerSlide, bool autoSteppingActive);
|
|
|
|
void set(FileList fileList, osg::Switch* sw, float offsetX, float offsetY, osg::TexMat* texmatLeft, osg::TexMat* texmatRight, float radius, float height, float length, float timePerSlide, bool autoSteppingActive);
|
|
|
|
|
|
virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&);
|
|
|
|
virtual void getUsage(osg::ApplicationUsage& usage) const;
|
|
|
|
virtual void operator()(osg::Node* node, osg::NodeVisitor* nv);
|
|
|
|
void nextSlide();
|
|
|
|
void previousSlide();
|
|
|
|
void scaleImage(float s);
|
|
|
|
void offsetImage(float ds,float dt);
|
|
|
|
void rotateImage(float rx,float ry);
|
|
|
|
void initTexMatrices();
|
|
|
|
protected:
|
|
|
|
~SlideEventHandler() {}
|
|
SlideEventHandler(const SlideEventHandler&,const osg::CopyOp&) {}
|
|
|
|
osg::ref_ptr<osg::Switch> _switch;
|
|
osg::ref_ptr<osg::TexMat> _texmatLeft;
|
|
osg::ref_ptr<osg::TexMat> _texmatRight;
|
|
float _radius;
|
|
float _height;
|
|
float _length;
|
|
bool _firstTraversal;
|
|
unsigned int _activeSlide;
|
|
double _previousTime;
|
|
double _timePerSlide;
|
|
bool _autoSteppingActive;
|
|
float _initSeperationX;
|
|
float _currentSeperationX;
|
|
float _initSeperationY;
|
|
float _currentSeperationY;
|
|
FileList _fileList;
|
|
|
|
};
|
|
|
|
SlideEventHandler::SlideEventHandler():
|
|
_switch(0),
|
|
_texmatLeft(0),
|
|
_texmatRight(0),
|
|
_firstTraversal(true),
|
|
_activeSlide(0),
|
|
_previousTime(-1.0f),
|
|
_timePerSlide(5.0),
|
|
_autoSteppingActive(false)
|
|
{
|
|
}
|
|
|
|
void SlideEventHandler::set(osg::Switch* sw, float offsetX, float offsetY, osg::TexMat* texmatLeft, osg::TexMat* texmatRight, float timePerSlide, bool autoSteppingActive)
|
|
{
|
|
_switch = sw;
|
|
_switch->setUpdateCallback(this);
|
|
|
|
_texmatLeft = texmatLeft;
|
|
_texmatRight = texmatRight;
|
|
|
|
_timePerSlide = timePerSlide;
|
|
_autoSteppingActive = autoSteppingActive;
|
|
|
|
_initSeperationX = offsetX;
|
|
_currentSeperationX = _initSeperationX;
|
|
|
|
_initSeperationY = offsetY;
|
|
_currentSeperationY = _initSeperationY;
|
|
|
|
initTexMatrices();
|
|
|
|
}
|
|
|
|
void SlideEventHandler::set(FileList fileList, osg::Switch* sw, float offsetX, float offsetY, osg::TexMat* texmatLeft, osg::TexMat* texmatRight, float radius, float height, float length, float timePerSlide, bool autoSteppingActive)
|
|
{
|
|
_switch = sw;
|
|
_switch->setUpdateCallback(this);
|
|
_fileList=FileList(fileList);
|
|
|
|
osg::ref_ptr<osg::Group> imageGroup = loadImages(fileList[0],fileList[1],texmatLeft,texmatRight, radius, height, length);
|
|
if (imageGroup.get())_switch->addChild(imageGroup.get());
|
|
|
|
_texmatLeft = texmatLeft;
|
|
_texmatRight = texmatRight;
|
|
|
|
_radius=radius;
|
|
_height=height;
|
|
_length=length;
|
|
|
|
_timePerSlide = timePerSlide;
|
|
_autoSteppingActive = autoSteppingActive;
|
|
|
|
_initSeperationX = offsetX;
|
|
_currentSeperationX = _initSeperationX;
|
|
|
|
_initSeperationY = offsetY;
|
|
_currentSeperationY = _initSeperationY;
|
|
|
|
initTexMatrices();
|
|
}
|
|
|
|
|
|
bool SlideEventHandler::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter&)
|
|
{
|
|
switch(ea.getEventType())
|
|
{
|
|
case(osgGA::GUIEventAdapter::KEYDOWN):
|
|
{
|
|
if (ea.getKey()=='a')
|
|
{
|
|
_autoSteppingActive = !_autoSteppingActive;
|
|
_previousTime = ea.getTime();
|
|
return true;
|
|
}
|
|
else if ((ea.getKey()=='n') || (ea.getKey()==osgGA::GUIEventAdapter::KEY_Right))
|
|
{
|
|
nextSlide();
|
|
return true;
|
|
}
|
|
else if ((ea.getKey()=='p') || (ea.getKey()==osgGA::GUIEventAdapter::KEY_Left))
|
|
{
|
|
previousSlide();
|
|
return true;
|
|
}
|
|
else if ((ea.getKey()=='w') || (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Add))
|
|
{
|
|
scaleImage(0.99f);
|
|
return true;
|
|
}
|
|
else if ((ea.getKey()=='s') || (ea.getKey()==osgGA::GUIEventAdapter::KEY_KP_Subtract))
|
|
{
|
|
scaleImage(1.01f);
|
|
return true;
|
|
}
|
|
else if (ea.getKey()=='j')
|
|
{
|
|
offsetImage(-0.001f,0.0f);
|
|
return true;
|
|
}
|
|
else if (ea.getKey()=='k')
|
|
{
|
|
offsetImage(0.001f,0.0f);
|
|
return true;
|
|
}
|
|
else if (ea.getKey()=='i')
|
|
{
|
|
offsetImage(0.0f,-0.001f);
|
|
return true;
|
|
}
|
|
else if (ea.getKey()=='m')
|
|
{
|
|
offsetImage(0.0f,0.001f);
|
|
return true;
|
|
}
|
|
else if (ea.getKey()==' ')
|
|
{
|
|
initTexMatrices();
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
case(osgGA::GUIEventAdapter::DRAG):
|
|
case(osgGA::GUIEventAdapter::MOVE):
|
|
{
|
|
static float px = ea.getXnormalized();
|
|
static float py = ea.getYnormalized();
|
|
|
|
float dx = ea.getXnormalized()-px;
|
|
float dy = ea.getYnormalized()-py;
|
|
|
|
px = ea.getXnormalized();
|
|
py = ea.getYnormalized();
|
|
|
|
rotateImage(dx,dy);
|
|
|
|
return true;
|
|
}
|
|
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void SlideEventHandler::getUsage(osg::ApplicationUsage& usage) const
|
|
{
|
|
usage.addKeyboardMouseBinding("Space","Reset the image position to center");
|
|
usage.addKeyboardMouseBinding("a","Toggle on/off the automatic advancement for image to image");
|
|
usage.addKeyboardMouseBinding("n","Advance to next image");
|
|
usage.addKeyboardMouseBinding("p","Move to previous image");
|
|
usage.addKeyboardMouseBinding("q","Zoom into the image");
|
|
usage.addKeyboardMouseBinding("a","Zoom out of the image");
|
|
usage.addKeyboardMouseBinding("j","Reduce horizontal offset");
|
|
usage.addKeyboardMouseBinding("k","Increase horizontal offset");
|
|
usage.addKeyboardMouseBinding("m","Reduce vertical offset");
|
|
usage.addKeyboardMouseBinding("i","Increase vertical offset");
|
|
}
|
|
|
|
void SlideEventHandler::operator()(osg::Node* node, osg::NodeVisitor* nv)
|
|
{
|
|
if (_autoSteppingActive && nv->getFrameStamp())
|
|
{
|
|
double time = nv->getFrameStamp()->getSimulationTime();
|
|
|
|
if (_firstTraversal)
|
|
{
|
|
_firstTraversal = false;
|
|
_previousTime = time;
|
|
}
|
|
else if (time-_previousTime>_timePerSlide)
|
|
{
|
|
_previousTime = time;
|
|
|
|
nextSlide();
|
|
}
|
|
|
|
}
|
|
|
|
traverse(node,nv);
|
|
}
|
|
|
|
void SlideEventHandler::nextSlide()
|
|
{
|
|
|
|
if (_switch->getNumChildren()==0) return;
|
|
|
|
++_activeSlide;
|
|
|
|
if (_fileList.size()>0) {
|
|
if (_activeSlide>= _fileList.size()/2 ) _activeSlide = 0;
|
|
osg::ref_ptr<osg::Group> images = loadImages(_fileList[2*_activeSlide],_fileList[2*_activeSlide+1],_texmatLeft.get(),_texmatRight.get(),_radius,_height,_length);
|
|
if (images.valid()) _switch->replaceChild(_switch->getChild(0),images.get());
|
|
|
|
} else {
|
|
if (_activeSlide>=_switch->getNumChildren()) _activeSlide = 0;
|
|
|
|
_switch->setSingleChildOn(_activeSlide);
|
|
}
|
|
}
|
|
|
|
void SlideEventHandler::previousSlide()
|
|
{
|
|
if (_switch->getNumChildren()==0) return;
|
|
|
|
if (_fileList.size()>0) {
|
|
if (_activeSlide==0) _activeSlide = _fileList.size()/2-1;
|
|
else --_activeSlide;
|
|
osg::ref_ptr<osg::Group> images = loadImages(_fileList[2*_activeSlide],_fileList[2*_activeSlide+1],_texmatLeft.get(),_texmatRight.get(),_radius,_height,_length);
|
|
if (images.valid()) _switch->replaceChild(_switch->getChild(0),images.get());
|
|
} else {
|
|
if (_activeSlide==0) _activeSlide = _switch->getNumChildren()-1;
|
|
else --_activeSlide;
|
|
|
|
_switch->setSingleChildOn(_activeSlide);
|
|
}
|
|
}
|
|
|
|
void SlideEventHandler::scaleImage(float s)
|
|
{
|
|
_texmatLeft->setMatrix(_texmatLeft->getMatrix()*osg::Matrix::translate(-0.5f,-0.5f,0.0f)*osg::Matrix::scale(s,s,1.0f)*osg::Matrix::translate(0.5f,0.5f,0.0f));
|
|
_texmatRight->setMatrix(_texmatRight->getMatrix()*osg::Matrix::translate(-0.5f,-0.5f,0.0f)*osg::Matrix::scale(s,s,1.0f)*osg::Matrix::translate(0.5f,0.5f,0.0f));
|
|
}
|
|
|
|
void SlideEventHandler::offsetImage(float ds,float dt)
|
|
{
|
|
_currentSeperationX+=ds;
|
|
_currentSeperationY+=dt;
|
|
osg::notify(osg::NOTICE)<<"image offset x = "<<_currentSeperationX<<" y ="<<_currentSeperationY<<std::endl;
|
|
_texmatLeft->setMatrix(_texmatLeft->getMatrix()*osg::Matrix::translate(ds,dt,0.0f));
|
|
_texmatRight->setMatrix(_texmatRight->getMatrix()*osg::Matrix::translate(-ds,-dt,0.0f));
|
|
}
|
|
|
|
void SlideEventHandler::rotateImage(float rx,float ry)
|
|
{
|
|
const float scale = 0.5f;
|
|
_texmatLeft->setMatrix(_texmatLeft->getMatrix()*osg::Matrix::translate(-rx*scale,-ry*scale,0.0f));
|
|
_texmatRight->setMatrix(_texmatRight->getMatrix()*osg::Matrix::translate(-rx*scale,-ry*scale,0.0f));
|
|
}
|
|
|
|
void SlideEventHandler::initTexMatrices()
|
|
{
|
|
_texmatLeft->setMatrix(osg::Matrix::translate(_initSeperationX,_initSeperationY,0.0f));
|
|
_texmatRight->setMatrix(osg::Matrix::translate(-_initSeperationX,-_initSeperationY,0.0f));
|
|
}
|
|
|
|
|
|
|
|
int main( int argc, char **argv )
|
|
{
|
|
// use an ArgumentParser object to manage the program arguments.
|
|
osg::ArgumentParser arguments(&argc,argv);
|
|
|
|
// set up the usage document, in case we need to print out how to use this program.
|
|
arguments.getApplicationUsage()->setDescription(arguments.getApplicationName()+" is the example which demonstrates use node masks to create stereo images.");
|
|
arguments.getApplicationUsage()->setCommandLineUsage(arguments.getApplicationName()+" [options] image_file_left_eye image_file_right_eye");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-d <float>","Time delay in seconds between the display of successive image pairs when in auto advance mode.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-a","Enter auto advance of image pairs on start up.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-x <float>","Horizontal offset of left and right images.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-y <float>","Vertical offset of left and right images.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--disk","Keep images on disk");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-files <filename>","Load filenames from a file");
|
|
arguments.getApplicationUsage()->addCommandLineOption("-h or --help","Display this information");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--SingleThreaded","Select SingleThreaded threading model for viewer.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--CullDrawThreadPerContext","Select CullDrawThreadPerContext threading model for viewer.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--DrawThreadPerContext","Select DrawThreadPerContext threading model for viewer.");
|
|
arguments.getApplicationUsage()->addCommandLineOption("--CullThreadPerCameraDrawThreadPerContext","Select CullThreadPerCameraDrawThreadPerContext threading model for viewer.");
|
|
|
|
|
|
// construct the viewer.
|
|
osgViewer::Viewer viewer(arguments);
|
|
|
|
// register the handler to add keyboard and mouse handling.
|
|
SlideEventHandler* seh = new SlideEventHandler();
|
|
viewer.addEventHandler(seh);
|
|
|
|
// read any time delay argument.
|
|
float timeDelayBetweenSlides = 5.0f;
|
|
while (arguments.read("-d",timeDelayBetweenSlides)) {}
|
|
|
|
bool autoSteppingActive = false;
|
|
while (arguments.read("-a")) autoSteppingActive = true;
|
|
|
|
float offsetX=0.0f;
|
|
while (arguments.read("-x",offsetX)) {}
|
|
|
|
float offsetY=0.0f;
|
|
while (arguments.read("-y",offsetY)) {}
|
|
|
|
bool onDisk=false;
|
|
while (arguments.read("--disk")) { onDisk=true;}
|
|
|
|
std::string filename="";
|
|
FileList fileList;
|
|
// extract the filenames from the a file, one filename per line.
|
|
while (arguments.read("-files",filename)) {
|
|
osgDB::ifstream is(filename.c_str());
|
|
if (is) {
|
|
std::string line;
|
|
while (std::getline(is,line,'\n')) fileList.push_back(line);
|
|
is.close();
|
|
}
|
|
|
|
}
|
|
|
|
// if user request help write it out to cout.
|
|
if (arguments.read("-h") || arguments.read("--help"))
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
osgViewer::Viewer::ThreadingModel threading = osgViewer::Viewer::SingleThreaded;
|
|
while (arguments.read("--SingleThreaded")) threading = osgViewer::Viewer::SingleThreaded;
|
|
while (arguments.read("--CullDrawThreadPerContext")) threading = osgViewer::Viewer::CullDrawThreadPerContext;
|
|
while (arguments.read("--DrawThreadPerContext")) threading = osgViewer::Viewer::DrawThreadPerContext;
|
|
while (arguments.read("--CullThreadPerCameraDrawThreadPerContext")) threading = osgViewer::Viewer::CullThreadPerCameraDrawThreadPerContext;
|
|
|
|
viewer.setThreadingModel(threading);
|
|
|
|
// any option left unread are converted into errors to write out later.
|
|
arguments.reportRemainingOptionsAsUnrecognized();
|
|
|
|
// report any errors if they have occurred when parsing the program arguments.
|
|
if (arguments.errors())
|
|
{
|
|
arguments.writeErrorMessages(std::cout);
|
|
return 1;
|
|
}
|
|
|
|
// extract the filenames from the arguments list.
|
|
for(int pos=1;pos<arguments.argc();++pos)
|
|
{
|
|
if (arguments.isString(pos)) fileList.push_back(arguments[pos]);
|
|
}
|
|
|
|
if (fileList.empty())
|
|
{
|
|
fileList.push_back("Images/dog_left_eye.jpg");
|
|
fileList.push_back("Images/dog_right_eye.jpg");
|
|
}
|
|
else if (fileList.size()<2)
|
|
{
|
|
arguments.getApplicationUsage()->write(std::cout,osg::ApplicationUsage::COMMAND_LINE_OPTION);
|
|
return 1;
|
|
}
|
|
|
|
// now the windows have been realized we switch off the cursor to prevent it
|
|
// distracting the people seeing the stereo images.
|
|
double fovy, aspectRatio, zNear, zFar;
|
|
viewer.getCamera()->getProjectionMatrixAsPerspective(fovy, aspectRatio, zNear, zFar);
|
|
|
|
float radius = 1.0f;
|
|
float height = 2*radius*tan(osg::DegreesToRadians(fovy)*0.5f);
|
|
float length = osg::PI*radius; // half a cylinder.
|
|
|
|
// use a texture matrix to control the placement of the image.
|
|
osg::TexMat* texmatLeft = new osg::TexMat;
|
|
osg::TexMat* texmatRight = new osg::TexMat;
|
|
|
|
// creat the scene from the file list.
|
|
osg::ref_ptr<osg::Switch> rootNode;
|
|
if (!onDisk) rootNode = createScene(fileList,texmatLeft,texmatRight,radius,height,length);
|
|
else rootNode=new osg::Switch();
|
|
|
|
//osgDB::writeNodeFile(*rootNode,"test.osgt");
|
|
|
|
|
|
|
|
viewer.getCamera()->setCullMask(0xffffffff);
|
|
viewer.getCamera()->setCullMaskLeft(0x00000001);
|
|
viewer.getCamera()->setCullMaskRight(0x00000002);
|
|
|
|
// set up the use of stereo by default.
|
|
osg::DisplaySettings::instance()->setStereo(true);
|
|
|
|
if (osg::DisplaySettings::instance()->getStereoMode()==osg::DisplaySettings::ANAGLYPHIC)
|
|
{
|
|
rootNode->setStateSet(createColorToGreyscaleStateSet());
|
|
}
|
|
|
|
|
|
// set the scene to render
|
|
viewer.setSceneData(rootNode.get());
|
|
|
|
|
|
// create the windows and run the threads.
|
|
viewer.realize();
|
|
|
|
|
|
// switch off the cursor
|
|
osgViewer::Viewer::Windows windows;
|
|
viewer.getWindows(windows);
|
|
for(osgViewer::Viewer::Windows::iterator itr = windows.begin();
|
|
itr != windows.end();
|
|
++itr)
|
|
{
|
|
(*itr)->useCursor(false);
|
|
}
|
|
|
|
viewer.setFusionDistance(osgUtil::SceneView::USE_FUSION_DISTANCE_VALUE,radius);
|
|
|
|
// set up the SlideEventHandler.
|
|
if (onDisk) seh->set(fileList,rootNode.get(),offsetX,offsetY,texmatLeft,texmatRight,radius,height,length,timeDelayBetweenSlides,autoSteppingActive);
|
|
else seh->set(rootNode.get(),offsetX,offsetY,texmatLeft,texmatRight,timeDelayBetweenSlides,autoSteppingActive);
|
|
|
|
osg::Matrix homePosition;
|
|
homePosition.makeLookAt(osg::Vec3(0.0f,0.0f,0.0f),osg::Vec3(0.0f,1.0f,0.0f),osg::Vec3(0.0f,0.0f,1.0f));
|
|
|
|
while( !viewer.done() )
|
|
{
|
|
viewer.getCamera()->setViewMatrix(homePosition);
|
|
|
|
// fire off the cull and draw traversals of the scene.
|
|
viewer.frame();
|
|
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|