#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; }