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Simply press S to toggle stereo display (architecture dependent).
This is a simple stereo application inspired from simpleViewer. The constructor is called with a QFormat stereo option to enable stereo. Press 'S' to toggle stereo display.
#include "qglviewer.h"
class Viewer : public QGLViewer
{
public :
Viewer(const QGLFormat& format);
protected :
QString helpString() const;
protected :
void draw();
};
#include "stereoViewer.h"
#include <qapplication.h>
#include <math.h>
using namespace std;
// Constructor must call the base class constructor.
// See the QT man page for details on QGLFormat.
Viewer::Viewer(const QGLFormat& format)
: QGLViewer(format)
{
restoreFromFile();
// Activate the stereo display. Press 's' to toggle.
setStereoDisplay(true);
help();
}
QString Viewer::helpString() const
{
QString text("<h2>S t e r e o V i e w e r</h2>");
text += "You can display in stereo with no change to your application.<br>";
text += "If you get a <b>Stereo not supported on this display</b> error message, check that ";
text += "your machine supports stereo (search for quad-buffer in <i>glxinfo</i> and find stereo glasses!). ";
text += "Send an e-mail if you were able to run other stereo applications and not this one.<br>";
text += "Press <b>S</b> to toggle the stereo display.";
return text;
}
void Viewer::draw()
{
// Draws a spiral
const float nbSteps = 500.0;
glBegin(GL_QUAD_STRIP);
for (float i=0; i<nbSteps; ++i)
{
float ratio = i/nbSteps;
float angle = 21.0*ratio;
float c = cos(angle);
float s = sin(angle);
float r1 = 1.0 - 0.8*ratio;
float r2 = 0.8 - 0.8*ratio;
float alt = ratio - 0.5;
const float nor = .5;
const float up = sqrt(1.0-nor*nor);
glColor3f(1-ratio, .2 , ratio);
glNormal3f(nor*c, up, nor*s);
glVertex3f(r1*c, alt, r1*s);
glVertex3f(r2*c, alt+0.05, r2*s);
}
glEnd();
return;
}
#include "stereoViewer.h"
#include <qapplication.h>
int main(int argc, char** argv)
{
// Read command lines arguments.
QApplication application(argc,argv);
// Instantiate the viewer with a stereo OpenGl context.
QGLFormat format;
format.setStereo( TRUE );
Viewer viewer(format);
// Make the viewer window visible on screen.
viewer.show();
// Set the viewer as the application main widget.
application.setMainWidget(&viewer);
// Run main loop.
return application.exec();
}
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