void Viewer::init()
{
glewInit();
//shader_vert="toon.vert"; shader_frag = "toon.frag";
//shader_vert="vertexshader.txt"; shader_frag = "fragmentshader.txt";
//InitializeProgram();
//initShader_ter();
restoreStateFromFile();
glEnable (GL_DEPTH_TEST);
glDepthFunc(GL_LEQUAL);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_LIGHTING);
glEnable(GL_NORMALIZE);
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
glEnable(GL_TEXTURE_2D);
glShadeModel(GL_SMOOTH);
glEnable(GL_COLOR_MATERIAL);
glPixelStorei(GL_UNPACK_ALIGNMENT, 4); // 4-byte pixel alignment
// pretty rendering
// fast rendering
glEnable(GL_LINE_SMOOTH);
glHint(GL_LINE_SMOOTH_HINT, GL_NICEST);
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST);
glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
glHint(GL_POLYGON_SMOOTH_HINT, GL_NICEST);
light.setLight();
mat.setMaterial();
mySky.Set( 0,0,0, 300000.0f );
mySky.LoadTextures(":sky");
emit updateTasklabel(QString::number(curTerr+1)+"/"+QString::number(terrains.size()));
initShader_phong();
QVector4D ltmp(light.position[0],light.position[1],light.position[2],light.position[3]);
ltmp.normalize();
GLfloat lpos[4] = {ltmp.x(),ltmp.y(),ltmp.z(),ltmp.w()};
glProgramEnvParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 1, lpos);
//QVector<QString> tlist;
//tlist.push_back("CD.ter");
//tlist.push_back("terr_gcut.ter");
// /addTerrain("CD.ter");
//addTerrain("terr_gcut.ter");
help();
//DrawInit();
//qWarning("start drawing");
}
void QGCodeViewer::init()
{
setShortcut(DISPLAY_FPS, Qt::CTRL+Qt::Key_F);
setShortcut(DRAW_GRID, 0);
setManipulatedFrame(new ManipulatedFrame());
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glEnable(GL_DEPTH_TEST);
glDrawBuffer(GL_BACK);
//glDisable(GL_CULL_FACE);
//glLineStipple(2, 0xFFFF);
glDisable(GL_LIGHTING);
glClearColor(0.25,0.25,0.25,0);
//glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
//glLineWidth(3);
//setGridIsDrawn();
if (!restoreStateFromFile()) {
showEntireScene();
}
setMouseBinding(Qt::AltModifier, Qt::RightButton, SHOW_ENTIRE_SCENE, true, Qt::MidButton);
clear();
//startAnimation();
}
void Viewer::init()
{
// Restore previous viewer state.
restoreStateFromFile();
initializeOpenGLFunctions();
// Define 'Control+Q' as the new exit shortcut (default was 'Escape')
setShortcut(CGAL::qglviewer::EXIT_VIEWER, Qt::CTRL+Qt::Key_Q);
// Add custom key description (see keyPressEvent).
setKeyDescription(Qt::Key_W, "Toggles wire frame display");
setKeyDescription(Qt::Key_F, "Toggles flat shading display");
setKeyDescription(Qt::Key_E, "Toggles edges display");
setKeyDescription(Qt::Key_V, "Toggles vertices display");
setKeyDescription(Qt::Key_N, "Inverse direction of normals");
setKeyDescription(Qt::Key_Plus, "Increase size of edges");
setKeyDescription(Qt::Key_Minus, "Decrease size of edges");
setKeyDescription(Qt::Key_Plus+Qt::ShiftModifier, "Increase size of vertices");
setKeyDescription(Qt::Key_Minus+Qt::ShiftModifier, "Decrease size of vertices");
setKeyDescription(Qt::Key_PageDown, "Increase light (all colors, use shift/alt/ctrl for one rgb component)");
setKeyDescription(Qt::Key_PageUp, "Decrease light (all colors, use shift/alt/ctrl for one rgb component)");
// Light default parameters
glLineWidth(size_edges);
glEnable(GL_POLYGON_OFFSET_FILL);
glPolygonOffset(1.0f,1.0f);
glClearColor(1.0f,1.0f,1.0f,0.0f);
glDisable(GL_BLEND);
glDisable(GL_LINE_SMOOTH);
glDisable(GL_POLYGON_SMOOTH_HINT);
glBlendFunc(GL_ONE, GL_ZERO);
glHint(GL_LINE_SMOOTH_HINT, GL_FASTEST);
compile_shaders();
}
void Viewer::init()
{
// Restore previous viewer state.
restoreStateFromFile();
initializeOpenGLFunctions();
// Define 'Control+Q' as the new exit shortcut (default was 'Escape')
setShortcut(EXIT_VIEWER, Qt::CTRL+Qt::Key_Q);
// Add custom key description (see keyPressEvent).
setKeyDescription(Qt::Key_W, "Toggles wire frame display");
setKeyDescription(Qt::Key_F, "Toggles flat shading display");
setKeyDescription(Qt::Key_E, "Toggles edges display");
setKeyDescription(Qt::Key_V, "Toggles vertices display");
// Light default parameters
::glLineWidth(1.4f);
::glPointSize(4.f);
::glEnable(GL_POLYGON_OFFSET_FILL);
::glPolygonOffset(1.0f,1.0f);
::glClearColor(1.0f,1.0f,1.0f,0.0f);
::glPolygonMode(GL_FRONT_AND_BACK,GL_FILL);
::glEnable(GL_LIGHTING);
::glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
::glShadeModel(GL_FLAT);
::glDisable(GL_BLEND);
::glDisable(GL_LINE_SMOOTH);
::glDisable(GL_POLYGON_SMOOTH_HINT);
::glBlendFunc(GL_ONE, GL_ZERO);
::glHint(GL_LINE_SMOOTH_HINT, GL_FASTEST);
compile_shaders();
}
void TrackballViewer::resetCamera()
{
// assume only one dispObjects MainCanvas exist here
Bound* scene_bounds = dynamic_cast<TrackballCanvas*>(dispObjects[0])->getBoundBox();
qglviewer::Vec scene_center;
scene_center = qglviewer::Vec((scene_bounds->minX + scene_bounds->maxX) / 2,
(scene_bounds->minY + scene_bounds->maxY) / 2,
(scene_bounds->minZ + scene_bounds->maxZ) / 2);
setSceneCenter(scene_center);
float x_span = (scene_bounds->maxX - scene_bounds->minX) / 2;
float y_span = (scene_bounds->maxY - scene_bounds->minY) / 2;
float z_span = (scene_bounds->maxZ - scene_bounds->minZ) / 2;
float scene_radius = x_span>y_span ? (x_span > z_span ? x_span : z_span) : (y_span > z_span ? y_span : z_span);
scene_radius *= 1.5;
setSceneRadius(scene_radius);
camera()->fitSphere(scene_center, scene_radius);
setStateFileName(QString((dynamic_cast<TrackballCanvas*>(dispObjects[0])->getFilePath()+"/camera_info.xml").c_str()));
if (restoreStateFromFile())
std::cout << "Load camera info successes...\n";
else
std::cout << "Load camera info failed...\n";
// set the scene in MainCanvasViewer
syncCamera();
main_canvas_viewer->setSceneCenter(sceneCenter());
main_canvas_viewer->setSceneRadius(sceneRadius());
main_canvas_viewer->camera()->setZClippingCoefficient(camera()->zClippingCoefficient());
}
void MyQGLViewer::init()
{
// call the scene init method
restoreStateFromFile();
_myScene->init();
}
void KnotsViewer::init()
{
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Restore previous viewer state.
restoreStateFromFile();
setBackgroundColor(QColor(255,255,255,0));
setMouseBinding(Qt::NoModifier, Qt::LeftButton, NO_CLICK_ACTION);
setMouseBinding(Qt::ShiftModifier, Qt::LeftButton, CAMERA, SCREEN_ROTATE);//重新设置LeftButton，旋转屏幕或者物体
}
void SFMViewer::init() {
// Restore previous viewer state.
restoreStateFromFile();
setFPSIsDisplayed();
setSceneBoundingBox(qglviewer::Vec(-50,-50,-50), qglviewer::Vec(50,50,50));
showEntireScene();
}
void ViewerWidget::init() {
// Restore previous viewer state.
restoreStateFromFile();
// Light initialization:
glEnable(GL_LIGHT0);
float pos[4] = {-1.0, 1.0, 1.0, 0.0};
// Directional light
glLightfv(GL_LIGHT0, GL_POSITION, pos);
// background color defaults to white
this->setBackgroundColor( QColor(255,255,255) );
this->qglClearColor( this->backgroundColor() );
}
void PointCloudViewer::init()
{
glEnable(GL_POINT_SMOOTH);
glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
glEnable(GL_BLEND);
glPointSize(3);
glLineWidth(10);
setMouseTracking(true);
texid = bindTexture(QImage(rgbImg->ptr(), rgbImg->cols, rgbImg->rows, QImage::Format_RGB888), GL_TEXTURE_2D, GL_RGB, QGLContext::LinearFilteringBindOption);
initBackground();
initLights();
initBuffers();
restoreStateFromFile();
setAnimationPeriod(10);
startAnimation();
}
virtual void init(){
restoreStateFromFile();
glDisable(GL_LIGHTING);
setGridIsDrawn(false);
//help();
setAnimationPeriod(0); // fast as possible
startAnimation();
showEntireScene();
// Make world axis visible
setAxisIsDrawn(true);
// Move camera according to viewer type (on X, Y or Z axis)
camera()->setPosition(qglviewer::Vec(2.0,2.0,2.0));
camera()->setUpVector(qglviewer::Vec(0.0,0.0,1.0));
camera()->lookAt(sceneCenter());
/*
// Forbid rotation
qglviewer::WorldConstraint* constraint = new qglviewer::WorldConstraint();
constraint->setRotationConstraintType(qglviewer::AxisPlaneConstraint::FORBIDDEN);
camera()->frame()->setConstraint(constraint);
*/
}
int QGLViewer::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
_id = QGLWidget::qt_metacall(_c, _id, _a);
if (_id < 0)
return _id;
if (_c == QMetaObject::InvokeMetaMethod) {
switch (_id) {
case 0: viewerInitialized(); break;
case 1: drawNeeded(); break;
case 2: drawFinished((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 3: animateNeeded(); break;
case 4: helpRequired(); break;
case 5: axisIsDrawnChanged((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 6: gridIsDrawnChanged((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 7: FPSIsDisplayedChanged((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 8: textIsEnabledChanged((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 9: cameraIsEditedChanged((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 10: stereoChanged((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 11: pointSelected((*reinterpret_cast< const QMouseEvent*(*)>(_a[1]))); break;
case 12: mouseGrabberChanged((*reinterpret_cast< qglviewer::MouseGrabber*(*)>(_a[1]))); break;
case 13: setAxisIsDrawn((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 14: setAxisIsDrawn(); break;
case 15: setGridIsDrawn((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 16: setGridIsDrawn(); break;
case 17: setFPSIsDisplayed((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 18: setFPSIsDisplayed(); break;
case 19: setTextIsEnabled((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 20: setTextIsEnabled(); break;
case 21: setCameraIsEdited((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 22: setCameraIsEdited(); break;
case 23: toggleAxisIsDrawn(); break;
case 24: toggleGridIsDrawn(); break;
case 25: toggleFPSIsDisplayed(); break;
case 26: toggleTextIsEnabled(); break;
case 27: toggleCameraIsEdited(); break;
case 28: setBackgroundColor((*reinterpret_cast< const QColor(*)>(_a[1]))); break;
case 29: setForegroundColor((*reinterpret_cast< const QColor(*)>(_a[1]))); break;
case 30: setSceneRadius((*reinterpret_cast< float(*)>(_a[1]))); break;
case 31: setSceneCenter((*reinterpret_cast< const qglviewer::Vec(*)>(_a[1]))); break;
case 32: setSceneBoundingBox((*reinterpret_cast< const qglviewer::Vec(*)>(_a[1])),(*reinterpret_cast< const qglviewer::Vec(*)>(_a[2]))); break;
case 33: showEntireScene(); break;
case 34: setCamera((*reinterpret_cast< qglviewer::Camera*const(*)>(_a[1]))); break;
case 35: setManipulatedFrame((*reinterpret_cast< qglviewer::ManipulatedFrame*(*)>(_a[1]))); break;
case 36: setMouseGrabber((*reinterpret_cast< qglviewer::MouseGrabber*(*)>(_a[1]))); break;
case 37: setFullScreen((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 38: setFullScreen(); break;
case 39: setStereoDisplay((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 40: setStereoDisplay(); break;
case 41: toggleFullScreen(); break;
case 42: toggleStereoDisplay(); break;
case 43: toggleCameraMode(); break;
case 44: saveSnapshot((*reinterpret_cast< bool(*)>(_a[1])),(*reinterpret_cast< bool(*)>(_a[2]))); break;
case 45: saveSnapshot((*reinterpret_cast< bool(*)>(_a[1]))); break;
case 46: saveSnapshot(); break;
case 47: saveSnapshot((*reinterpret_cast< const QString(*)>(_a[1])),(*reinterpret_cast< bool(*)>(_a[2]))); break;
case 48: saveSnapshot((*reinterpret_cast< const QString(*)>(_a[1]))); break;
case 49: setSnapshotFileName((*reinterpret_cast< const QString(*)>(_a[1]))); break;
case 50: setSnapshotFormat((*reinterpret_cast< const QString(*)>(_a[1]))); break;
case 51: setSnapshotCounter((*reinterpret_cast< int(*)>(_a[1]))); break;
case 52: setSnapshotQuality((*reinterpret_cast< int(*)>(_a[1]))); break;
case 53: { bool _r = openSnapshotFormatDialog();
if (_a[0]) *reinterpret_cast< bool*>(_a[0]) = _r; } break;
case 54: snapshotToClipboard(); break;
case 55: copyBufferToTexture((*reinterpret_cast< GLint(*)>(_a[1])),(*reinterpret_cast< GLenum(*)>(_a[2]))); break;
case 56: copyBufferToTexture((*reinterpret_cast< GLint(*)>(_a[1]))); break;
case 57: setAnimationPeriod((*reinterpret_cast< int(*)>(_a[1]))); break;
case 58: startAnimation(); break;
case 59: stopAnimation(); break;
case 60: animate(); break;
case 61: toggleAnimation(); break;
case 62: help(); break;
case 63: aboutQGLViewer(); break;
case 64: select((*reinterpret_cast< const QMouseEvent*(*)>(_a[1]))); break;
case 65: select((*reinterpret_cast< const QPoint(*)>(_a[1]))); break;
case 66: setSelectBufferSize((*reinterpret_cast< int(*)>(_a[1]))); break;
case 67: setSelectRegionWidth((*reinterpret_cast< int(*)>(_a[1]))); break;
case 68: setSelectRegionHeight((*reinterpret_cast< int(*)>(_a[1]))); break;
case 69: setSelectedName((*reinterpret_cast< int(*)>(_a[1]))); break;
case 70: setShortcut((*reinterpret_cast< KeyboardAction(*)>(_a[1])),(*reinterpret_cast< int(*)>(_a[2]))); break;
case 71: setKeyboardAccelerator((*reinterpret_cast< KeyboardAction(*)>(_a[1])),(*reinterpret_cast< int(*)>(_a[2]))); break;
case 72: setKeyDescription((*reinterpret_cast< int(*)>(_a[1])),(*reinterpret_cast< QString(*)>(_a[2]))); break;
case 73: setKeyFrameKey((*reinterpret_cast< int(*)>(_a[1])),(*reinterpret_cast< int(*)>(_a[2]))); break;
case 74: setPlayKeyFramePathStateKey((*reinterpret_cast< int(*)>(_a[1]))); break;
case 75: setPlayPathStateKey((*reinterpret_cast< int(*)>(_a[1]))); break;
case 76: setAddKeyFrameStateKey((*reinterpret_cast< int(*)>(_a[1]))); break;
case 77: setPathKey((*reinterpret_cast< int(*)>(_a[1])),(*reinterpret_cast< int(*)>(_a[2]))); break;
case 78: setPathKey((*reinterpret_cast< int(*)>(_a[1]))); break;
case 79: setPlayPathKeyboardModifiers((*reinterpret_cast< QtKeyboardModifiers(*)>(_a[1]))); break;
case 80: setAddKeyFrameKeyboardModifiers((*reinterpret_cast< QtKeyboardModifiers(*)>(_a[1]))); break;
case 81: setMouseBinding((*reinterpret_cast< int(*)>(_a[1])),(*reinterpret_cast< MouseHandler(*)>(_a[2])),(*reinterpret_cast< MouseAction(*)>(_a[3])),(*reinterpret_cast< bool(*)>(_a[4]))); break;
case 82: setMouseBinding((*reinterpret_cast< int(*)>(_a[1])),(*reinterpret_cast< MouseHandler(*)>(_a[2])),(*reinterpret_cast< MouseAction(*)>(_a[3]))); break;
case 83: setWheelBinding((*reinterpret_cast< QtKeyboardModifiers(*)>(_a[1])),(*reinterpret_cast< MouseHandler(*)>(_a[2])),(*reinterpret_cast< MouseAction(*)>(_a[3])),(*reinterpret_cast< bool(*)>(_a[4]))); break;
case 84: setWheelBinding((*reinterpret_cast< QtKeyboardModifiers(*)>(_a[1])),(*reinterpret_cast< MouseHandler(*)>(_a[2])),(*reinterpret_cast< MouseAction(*)>(_a[3]))); break;
case 85: setHandlerKeyboardModifiers((*reinterpret_cast< MouseHandler(*)>(_a[1])),(*reinterpret_cast< QtKeyboardModifiers(*)>(_a[2]))); break;
case 86: setHandlerStateKey((*reinterpret_cast< MouseHandler(*)>(_a[1])),(*reinterpret_cast< int(*)>(_a[2]))); break;
case 87: setMouseStateKey((*reinterpret_cast< MouseHandler(*)>(_a[1])),(*reinterpret_cast< int(*)>(_a[2]))); break;
case 88: initFromDOMElement((*reinterpret_cast< const QDomElement(*)>(_a[1]))); break;
case 89: saveStateToFile(); break;
case 90: { bool _r = restoreStateFromFile();
if (_a[0]) *reinterpret_cast< bool*>(_a[0]) = _r; } break;
case 91: setStateFileName((*reinterpret_cast< const QString(*)>(_a[1]))); break;
case 92: saveToFile((*reinterpret_cast< const QString(*)>(_a[1]))); break;
case 93: saveToFile(); break;
case 94: { bool _r = restoreFromFile((*reinterpret_cast< const QString(*)>(_a[1])));
if (_a[0]) *reinterpret_cast< bool*>(_a[0]) = _r; } break;
case 95: { bool _r = restoreFromFile();
if (_a[0]) *reinterpret_cast< bool*>(_a[0]) = _r; } break;
case 96: resetVisualHints(); break;
case 97: delayedFullScreen(); break;
case 98: hideMessage(); break;
default: ;
}
_id -= 99;
}
return _id;
}
/******************************************************************************
* Initialize the viewer
******************************************************************************/
void SampleViewer::init()
{
// GLEW initialization
GLenum error = glewInit();
if ( error != GLEW_OK )
{
// Problem : glewInit failed
fprintf( stderr, "Error: %s\n", glewGetErrorString( error ) );
// Exit program
exit( 1 );
}
// Initialize the GigaVoxels pipeline
_sampleCore = new SampleCore();
_sampleCore->init();
// Initialize the transfer function editor
_transferFunctionEditor = new Qtfe( NULL );
// Modify transfer function window flags to always stay on top
Qt::WindowFlags windowFlags = _transferFunctionEditor->windowFlags();
windowFlags |= Qt::WindowStaysOnTopHint;
#ifndef WIN32
windowFlags |= Qt::X11BypassWindowManagerHint;
#endif
_transferFunctionEditor->setWindowFlags( windowFlags );
// Do connection(s)
connect( _transferFunctionEditor, SIGNAL( functionChanged() ), SLOT( onFunctionChanged() ) );
// Try to load a transfer function from file
QString dataRepository = QCoreApplication::applicationDirPath() + QDir::separator() + QString( "Data" );
QString filename = dataRepository + QDir::separator() + QString( "TransferFunctions" ) + QDir::separator() + QString( "TransferFunction_Qtfe_01.xml" );
QFileInfo fileInfo( filename );
if ( ( ! fileInfo.isFile() ) || ( ! fileInfo.isReadable() ) )
{
// Idea
// Maybe use Qt function : bool QFileInfo::permission ( QFile::Permissions permissions ) const
// TO DO
// Handle error : free memory and exit
// ...
std::cout << "ERROR. Check filename : " << filename.toLatin1().constData() << std::endl;
}
bool hasTransferFunctionBeenLoaded = _transferFunctionEditor->load( filename );
if ( ! hasTransferFunctionBeenLoaded )
{
// LOG
QString logMessage = tr( "Transfer function has not been loaded..." );
std::cout << logMessage.toLatin1().constData() << std::endl;
// Initialize a default transfer function
// 4 channels [R,G,B,A] bound to 1 output
_transferFunctionEditor->addChannels( 4 );
_transferFunctionEditor->addOutputs( 1 );
_transferFunctionEditor->bindChannelToOutputR( 0, 0 );
_transferFunctionEditor->bindChannelToOutputG( 1, 0 );
_transferFunctionEditor->bindChannelToOutputB( 2, 0 );
_transferFunctionEditor->bindChannelToOutputA( 3, 0 );
// Tell GigaVoxels that transfer function has been modified
onFunctionChanged();
// LOG
logMessage = tr( "A default one has been created." );
std::cout << logMessage.toLatin1().constData() << std::endl;
}
// Show the transfer function editor
_transferFunctionEditor->resize( 367, 546 );
_transferFunctionEditor->show();
// QGLViewer restoration mechanism
restoreStateFromFile();
// Initialize light
setLight( 1.08f, 1.99f );
setMouseTracking( true );
setAnimationPeriod( 0 );
startAnimation();
// Viewer settings :
// - sets the backgroundColor() of the viewer and calls qglClearColor()
setBackgroundColor( QColor( 150, 150, 150 ) );
// Update GigaVoxels clear color
_sampleCore->setClearColor( 150, 150, 150, 255 );
}
void init() {
restoreStateFromFile();
}
