int main(int argc, char** argv) {
if (argc < 2) {
printf("Usage: lensview <lens file>\n");
exit (-1);
}
if (!lsystem.Load(argv[1])) {
printf("Cannot open the lens file: %s.\n", argv[1]);
exit(-1);
}
lvZoom = lvHeight / lsystem.maxAperture() / 3;
lvZoom = maxv(1, lvZoom);
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowSize(lvWidth, lvHeight);
glutCreateWindow("lensview");
glutDisplayFunc(lvDisplay);
glutMotionFunc(lvMotion);
glutMouseFunc(lvClick);
glutKeyboardFunc(lvKey);
glutReshapeFunc(lvResize);
glutIdleFunc(NULL);
glMatrixMode(GL_MODELVIEW); glLoadIdentity();
glMatrixMode(GL_PROJECTION); glLoadIdentity();
glClearColor(BGR, BGG, BGB, 1);
glutMainLoop();
return (0);
}
static void lvKey(unsigned char key, int x, int y) {
switch (key) {
case 27: /* Escape key */ exit(0);
case 'm': // toggle trace mode
lsystem.M = lsystem.M == precise ? thick : precise;
break;
case 'r':
iPlaneY = 0.0;
break;
case '-': // decrease fstop
if (lsystem.fstop -.09 < lsystem.minFS)
break;
lsystem.fstop -= .1;
lsystem.recalAper();
lsystem.findExitPupil();
break;
case '=': // increase fstop
lsystem.fstop += .1;
lsystem.recalAper();
lsystem.findExitPupil();
break;
case 's':
scale *= 2;
break;
default:
break;
}
glutPostRedisplay();
}
static void lvMotion(int x, int y) {
// Here we handle translation
float norm = 1.0f / lvZoom;
if (lvPressed[GLUT_LEFT_BUTTON]) {
lvTransX += float(lastx - x)*2.0f*norm;
lvTransY += float(lasty - y)*2.0f*norm;
}
if (lvPressed[GLUT_MIDDLE_BUTTON])
{
iPlaneY += float(lasty - y)*0.5f;
// Use this to change camera focus
if (lastx - x < 0)
{
zDist += lsystem.stopTrans * float(lastx - x)*pow(zDist, 1.15f)/(1000.0)*0.5f;
lsystem.refocus(zDist, -1);
}
else
{
zDist += float(lastx - x)*pow(zDist, 1.15f)/(1000.0)*0.5f;
lsystem.refocus(zDist, 1);
}
}
// Here we handle zooming
if (lvPressed[GLUT_RIGHT_BUTTON]) {
float zoom = 4.0f * float(x - lastx) / lvWidth;
if ((lvZoom + zoom) >= 1.0f)
lvZoom += zoom;
}
lastx = x; lasty = y;
glutPostRedisplay();
}
int main(int argc, char** argv) {
if (argc < 2) {
//printf("Usage: lensview <lens file>\n");
//exit (-1);
//argv[1] = ".\\lenses\\dgauss.50mm.dat";
argv[1] = ".\\lenses\\fisheye.10mm.dat";
//argv[1] = ".\\lenses\\telephoto.250mm.dat";
//argv[1] = ".\\lenses\\wide.22mm.dat";
}
if (!lsystem.Load(argv[1])) {
printf("Cannot open the lens file: %s.\n", argv[1]);
exit(-1);
}
printf("1\n");
lvZoom = lvHeight / lsystem.maxAperture() / 3;
lvZoom = maxv(1, lvZoom);
printf("2\n");
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA);
glutInitWindowSize(lvWidth, lvHeight);
glutCreateWindow("lensview");
glutDisplayFunc(lvDisplay);
glutMotionFunc(lvMotion);
glutMouseFunc(lvClick);
glutKeyboardFunc(lvKey);
glutReshapeFunc(lvResize);
glutIdleFunc(NULL);
glMatrixMode(GL_MODELVIEW); glLoadIdentity();
glMatrixMode(GL_PROJECTION); glLoadIdentity();
glClearColor(BGR, BGG, BGB, 1);
printf("3\n");
glLineWidth(1);
printf("4\n");
lsystem.findIntrinsics();
printf("5\n");
lsystem.refocus(zDist, -1);
printf("6\n");
glutMainLoop();
return (0);
}
static void lvDisplay(void) {
glClear(GL_COLOR_BUFFER_BIT);
applyTransforms();
glColor3f(0.25f, 0.25f, 0.25f);
glLineWidth(2);
drawLine(-lvWidth-lvTransX, 0, lvWidth-lvTransX, 0);
drawLine(0, -lvHeight-lvTransY, 0, lvHeight-lvTransY);
glLineWidth(1);
lsystem.Draw();
glMatrixMode(GL_PROJECTION); glPushMatrix();
glLoadIdentity();
gluOrtho2D(0, lvWidth, lvHeight, 0);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
drawSquare(0.25f, 0.25f, 0.25f, 0, 0, lvWidth, BARH);
drawSquare(0.25f, 0.25f, 0.25f, 0, lvHeight, lvWidth, lvHeight-BARH);
glLoadIdentity();
gluOrtho2D(-lvWidth, lvWidth, lvHeight, -lvHeight);
glColor3f(0, 1, 1);
drawText(-lvWidth + 15, -lvTransY*lvZoom - 8, SBFONT, "+z");
drawText(lvWidth - 50, -lvTransY*lvZoom - 8, SBFONT, "-z");
drawText(-lvTransX*lvZoom, -lvHeight + 75, SBFONT, "+y");
drawText(-lvTransX*lvZoom, lvHeight - 65, SBFONT, "-y");
glColor3f(1, 1, 1);
lvText(9, lvHeight-16, SBFONT, 0, "fstop %1.1f (aperture %1.1fmm) | "
"object %1.1fmm | image %1.1fmm | mode: none",
0.,0.,0.,0.);
lvText(9, 8, SBFONT, 0, "F %1.1fmm | F' %1.1fmm | P %1.1fmm | "
"P' %1.1fmm | exit pupil (%1.1fmm, %1.1fmm)",
0.,0.,0.,0.,0.,0.);
glPopMatrix();
glutSwapBuffers();
}
static void lvDisplay(void) {
glClear(GL_COLOR_BUFFER_BIT);
applyTransforms();
glScalef(scale, scale, scale);
glColor3f(0.25f, 0.25f, 0.25f);
glLineWidth(2);
drawLine(-lvWidth-lvTransX, 0, lvWidth-lvTransX, 0);
drawLine(0, -lvHeight-lvTransY, 0, lvHeight-lvTransY);
glLineWidth(1);
lsystem.Draw();
// Draw image planes
glColor3f(1.0, 0.0, 1.0);
glLineWidth(2);
drawLine(lsystem.iPlane, lsystem.maxAperture()/2, lsystem.iPlane, -lsystem.maxAperture()/2);
drawText(lsystem.iPlane - 1, -lsystem.maxAperture()/2 - 5, SBFONT, "I");
drawLine(zDist, lsystem.maxAperture()/2, zDist, -lsystem.maxAperture()/2);
drawText(zDist - 1, -lsystem.maxAperture()/2 - 5, SBFONT, "O");
// Trace rays through lens system
glColor3f(0.0, 0.0, 1.0);
glLineWidth(1);
for (int i = -9; i < 10; i++)
{
Ray rayv = Ray(Point(0, iPlaneY, lsystem.iPlane), Vector(0, lsystem.pupil.y/2 * (float) i/9 - iPlaneY, lsystem.pupil.z - lsystem.iPlane));
Ray& rays = rayv;
lsystem.Trace(rays, new Ray());
}
//lsystem.findExitPupil();
//lsystem.recalAper();
//lsystem.findF();
//lsystem.findFp();
//lsystem.refocus(zDist, -1);
//Draw principal axes
glColor3f(0.0, 1.0, 0.0);
glLineWidth(2);
drawLine(lsystem.pupil.z, lsystem.pupil.y/2, lsystem.pupil.z, (lsystem.pupil.y+lsystem.maxAperture()) / 2);
drawLine(lsystem.pupil.z, -lsystem.pupil.y/2, lsystem.pupil.z, (-lsystem.pupil.y-lsystem.maxAperture()) / 2);
drawText(lsystem.pupil.z, (-lsystem.pupil.y-lsystem.maxAperture()) / 2 - 5, SBFONT, "ep");
//Draw principal axes
glColor3f(1.0, 0.0, 0.0);
glLineWidth(2);
drawLine(lsystem.p2, lsystem.maxAperture()/2, lsystem.p2, -lsystem.maxAperture()/2);
drawText(lsystem.p2 - 1, -lsystem.maxAperture()/2 - 5, SBFONT, "P'");
drawLine(lsystem.p1, lsystem.maxAperture()/2, lsystem.p1, -lsystem.maxAperture()/2);
drawText(lsystem.p1 - 1, -lsystem.maxAperture()/2 - 5, SBFONT, "P");
//Draw focal planes
glColor3f(1.0, 1.0, 0.0);
drawPoint(5, lsystem.f1, 0);
drawText(lsystem.f1 - 1, -5, SBFONT, "F");
drawPoint(5, lsystem.f2, 0);
drawText(lsystem.f2 - 1, -5, SBFONT, "F'");
glMatrixMode(GL_PROJECTION); glPushMatrix();
glLoadIdentity();
gluOrtho2D(0, lvWidth, lvHeight, 0);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
drawSquare(0.25f, 0.25f, 0.25f, 0, 0, lvWidth, BARH);
drawSquare(0.25f, 0.25f, 0.25f, 0, lvHeight, lvWidth, lvHeight-BARH);
glLoadIdentity();
gluOrtho2D(-lvWidth, lvWidth, lvHeight, -lvHeight);
glColor3f(0, 1, 1);
drawText(-lvWidth + 15, -lvTransY*lvZoom - 8, SBFONT, "+z");
drawText(lvWidth - 50, -lvTransY*lvZoom - 8, SBFONT, "-z");
drawText(-lvTransX*lvZoom, -lvHeight + 75, SBFONT, "+y");
drawText(-lvTransX*lvZoom, lvHeight - 65, SBFONT, "-y");
glColor3f(1, 1, 1);
const char* mode = lsystem.M == precise ? "precise" : "thick";
lvText(9, lvHeight-16, SBFONT, 0, "fstop %1.1f (aperture %1.1fmm) | "
"object %1.1fmm | image %1.1fmm | mode: %s",
lsystem.fstop,lsystem.getAperture()->aper,zDist,lsystem.iPlane, mode);
lvText(9, 8, SBFONT, 0, "F %1.1fmm | F' %1.1fmm | P %1.1fmm | "
"P' %1.1fmm | exit pupil (%1.1fmm, %1.1fmm)",
lsystem.f1,lsystem.f2,lsystem.p1,lsystem.p2,lsystem.pupil.z,lsystem.pupil.y);
glPopMatrix();
glutSwapBuffers();
}