@paroj
tsanks paroj i read this link. But I could not start correctly, there is no example of how this can be done (I just have dyslexia, I learn from examples).
here is all the code
ogre_example3
Code: Select all
#-------------------------------------------------
#
# Project created by QtCreator 2021-12-07T15:27:56
#
#-------------------------------------------------
QT += core gui
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = ogre_example3
TEMPLATE = app
# The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS
# You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
SOURCES += \
main.cpp \
widget.cpp \
QTOgreWindow.cpp
HEADERS += \
widget.h \
QTOgreWindow.h \
SdkQtCameraMan.h
DISTFILES += \
plugins.cfg
INCLUDEPATH += /usr/local/include/OGRE/ \
/home/dima/ogre/ogre-1.12.13/Components/Bites/include \
/home/dima/ogre/ogre-1.12.13/build/include \
/usr/local/include/OGRE/RTShaderSystem \
/usr/local/include/OGRE/Overlay \
/home/dima/ogre/ogre-1.12.13/build/inst/bin
# -- из папки сборки все библы
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreBites
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreBitesQt
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreGLSupport
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreMain
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreMeshLodGenerator
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreOverlay
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgrePaging
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreProperty
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreRTShaderSystem
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreTerrain
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/lib/ -lOgreVolume
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
## - a
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/include
#unix:!macx: PRE_TARGETDEPS += $$PWD/../../ogre/ogre-1.12.13/build/lib/libOgreGLSupport.a
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/OgreMain/ -lOgreMain_pch_dephelp
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/OgreMain
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/OgreMain
#unix:!macx: PRE_TARGETDEPS += $$PWD/../../ogre/ogre-1.12.13/build/OgreMain/libOgreMain_pch_dephelp.a
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/Dependencies/lib/ -lfreetype
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/include
#unix:!macx: PRE_TARGETDEPS += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/lib/libfreetype.a
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/Dependencies/lib/ -lpugixml
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/include
#unix:!macx: PRE_TARGETDEPS += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/lib/libpugixml.a
#unix:!macx: LIBS += -L$$PWD/../../ogre/ogre-1.12.13/build/Dependencies/lib/ -lzzip
#INCLUDEPATH += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/include
#DEPENDPATH += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/include
#unix:!macx: PRE_TARGETDEPS += $$PWD/../../ogre/ogre-1.12.13/build/Dependencies/lib/libzzip.a
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreBites
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreBitesQt
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreMain
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreMeshLodGenerator
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreOverlay
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgrePaging
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreProperty
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreRTShaderSystem
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreTerrain
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOgreVolume
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -lOpenThreads
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losg
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgAnimation
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgDB
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgFX
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgGA
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgManipulator
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgParticle
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgPresentation
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgShadow
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgSim
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgTerrain
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgText
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgUI
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgUtil
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgViewer
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgVolume
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
unix:!macx: LIBS += -L$$PWD/../../../../usr/local/lib/ -losgWidget
INCLUDEPATH += $$PWD/../../../../usr/local/include
DEPENDPATH += $$PWD/../../../../usr/local/include
QTOgreWindow.h
Code: Select all
#ifndef QTOGREWINDOW_H
#define QTOGREWINDOW_H
/*
Qt headers
*/
#include <QtWidgets/QApplication>
#include <QtGui/QKeyEvent>
#include <QtGui/QWindow>
/*
Ogre3D header
*/
#include <Ogre.h>
/*
Changed SdkCameraMan implementation to work with QKeyEvent, QMouseEvent, QWheelEvent
*/
#include "SdkQtCameraMan.h"
/*
With the headers included we now need to inherit from QWindow.
*/
class QTOgreWindow : public QWindow, public Ogre::FrameListener
{
/*
A QWindow still inherits from QObject and can have signals/slots; we need to add the appropriate
Q_OBJECT keyword so that Qt's intermediate compiler can do the necessary wireup between our class
and the rest of Qt.
*/
Q_OBJECT
public:
explicit QTOgreWindow(QWindow *parent = NULL);
~QTOgreWindow();
/*
We declare these methods virtual to allow for further inheritance.
*/
virtual void render(QPainter *painter);
virtual void render();
virtual void initialize();
virtual void createScene();
#if OGRE_VERSION >= ((2 << 16) | (0 << 8) | 0)
virtual void createCompositor();
#endif
void setAnimating(bool animating);
public slots:
virtual void renderLater();
virtual void renderNow();
/*
We use an event filter to be able to capture keyboard/mouse events. More on this later.
*/
virtual bool eventFilter(QObject *target, QEvent *event);
signals:
/*
Event for clicking on an entity.
*/
void entitySelected(Ogre::Entity* entity);
protected:
/*
Ogre3D pointers added here. Useful to have the pointers here for use by the window later.
*/
Ogre::Root* m_ogreRoot;
Ogre::RenderWindow* m_ogreWindow;
Ogre::SceneManager* m_ogreSceneMgr;
Ogre::Camera* m_ogreCamera;
Ogre::ColourValue m_ogreBackground;
OgreQtBites::SdkQtCameraMan* m_cameraMan;
bool m_update_pending;
bool m_animating;
/*
The below methods are what is actually fired when they keys on the keyboard are hit.
Similar events are fired when the mouse is pressed or other events occur.
*/
virtual void keyPressEvent(QKeyEvent * ev);
virtual void keyReleaseEvent(QKeyEvent * ev);
virtual void mouseMoveEvent(QMouseEvent* e);
virtual void wheelEvent(QWheelEvent* e);
virtual void mousePressEvent(QMouseEvent* e);
virtual void mouseReleaseEvent(QMouseEvent* e);
virtual void exposeEvent(QExposeEvent *event);
virtual bool event(QEvent *event);
/*
FrameListener method
*/
virtual bool frameRenderingQueued(const Ogre::FrameEvent& evt);
/*
Write log messages to Ogre log
*/
void log(Ogre::String msg);
void log(QString msg);
};
#endif // QTOGREWINDOW_H
SdkQtCameraMan.h
Code: Select all
// File modified to change OIS to Qt KeyEvents
#ifndef __SdkQtCameraMan_H__
#define __SdkQtCameraMan_H__
#include "OgreCamera.h"
#include "OgreSceneNode.h"
#include "OgreFrameListener.h"
#include <QKeyEvent>
#include <QMouseEvent>
// enum CameraStyle should be in other namespace than OgreBites::CameraStyle
namespace OgreQtBites
{
enum CameraStyle // enumerator values for different styles of camera movement
{
CS_FREELOOK,
CS_ORBIT,
CS_MANUAL
};
/*=============================================================================
| Utility class for controlling the camera in samples.
=============================================================================*/
class SdkQtCameraMan
{
public:
SdkQtCameraMan(Ogre::Camera* cam)
: mCamera(0)
, mTarget(0)
, mOrbiting(false)
, mZooming(false)
, mTopSpeed(150)
, mVelocity(Ogre::Vector3::ZERO)
, mGoingForward(false)
, mGoingBack(false)
, mGoingLeft(false)
, mGoingRight(false)
, mGoingUp(false)
, mGoingDown(false)
, mFastMove(false)
{
setCamera(cam);
setStyle(CS_FREELOOK);
}
virtual ~SdkQtCameraMan() {}
/*-----------------------------------------------------------------------------
| Swaps the camera on our camera man for another camera.
-----------------------------------------------------------------------------*/
virtual void setCamera(Ogre::Camera* cam)
{
mCamera = cam;
}
virtual Ogre::Camera* getCamera()
{
return mCamera;
}
/*-----------------------------------------------------------------------------
| Sets the target we will revolve around. Only applies for orbit style.
-----------------------------------------------------------------------------*/
virtual void setTarget(Ogre::SceneNode* target)
{
if (target != mTarget)
{
mTarget = target;
if(target)
{
setYawPitchDist(Ogre::Degree(0), Ogre::Degree(15), 150);
mCamera->setAutoTracking(true, mTarget);
}
else
{
mCamera->setAutoTracking(false);
}
}
}
virtual Ogre::SceneNode* getTarget()
{
return mTarget;
}
/*-----------------------------------------------------------------------------
| Sets the spatial offset from the target. Only applies for orbit style.
-----------------------------------------------------------------------------*/
virtual void setYawPitchDist(Ogre::Radian yaw, Ogre::Radian pitch, Ogre::Real dist)
{
mCamera->setPosition(mTarget->_getDerivedPosition());
mCamera->setOrientation(mTarget->_getDerivedOrientation());
mCamera->yaw(yaw);
mCamera->pitch(-pitch);
mCamera->moveRelative(Ogre::Vector3(0, 0, dist));
}
/*-----------------------------------------------------------------------------
| Sets the camera's top speed. Only applies for free-look style.
-----------------------------------------------------------------------------*/
virtual void setTopSpeed(Ogre::Real topSpeed)
{
mTopSpeed = topSpeed;
}
virtual Ogre::Real getTopSpeed()
{
return mTopSpeed;
}
/*-----------------------------------------------------------------------------
| Sets the movement style of our camera man.
-----------------------------------------------------------------------------*/
virtual void setStyle(CameraStyle style)
{
if (mStyle != CS_ORBIT && style == CS_ORBIT)
{
setTarget(mTarget ? mTarget : mCamera->getSceneManager()->getRootSceneNode());
mCamera->setFixedYawAxis(true);
manualStop();
setYawPitchDist(Ogre::Degree(0), Ogre::Degree(15), 150);
}
else if (mStyle != CS_FREELOOK && style == CS_FREELOOK)
{
mCamera->setAutoTracking(false);
mCamera->setFixedYawAxis(true);
}
else if (mStyle != CS_MANUAL && style == CS_MANUAL)
{
mCamera->setAutoTracking(false);
manualStop();
}
mStyle = style;
}
virtual CameraStyle getStyle()
{
return mStyle;
}
/*-----------------------------------------------------------------------------
| Manually stops the camera when in free-look mode.
-----------------------------------------------------------------------------*/
virtual void manualStop()
{
if (mStyle == CS_FREELOOK)
{
mGoingForward = false;
mGoingBack = false;
mGoingLeft = false;
mGoingRight = false;
mGoingUp = false;
mGoingDown = false;
mVelocity = Ogre::Vector3::ZERO;
}
}
virtual bool frameRenderingQueued(const Ogre::FrameEvent& evt)
{
if (mStyle == CS_FREELOOK)
{
// build our acceleration vector based on keyboard input composite
Ogre::Vector3 accel = Ogre::Vector3::ZERO;
if (mGoingForward) accel += mCamera->getDirection();
if (mGoingBack) accel -= mCamera->getDirection();
if (mGoingRight) accel += mCamera->getRight();
if (mGoingLeft) accel -= mCamera->getRight();
if (mGoingUp) accel += mCamera->getUp();
if (mGoingDown) accel -= mCamera->getUp();
// if accelerating, try to reach top speed in a certain time
Ogre::Real topSpeed = mFastMove ? mTopSpeed * 20 : mTopSpeed;
if (accel.squaredLength() != 0)
{
accel.normalise();
mVelocity += accel * topSpeed * evt.timeSinceLastFrame * 10;
}
// if not accelerating, try to stop in a certain time
else mVelocity -= mVelocity * evt.timeSinceLastFrame * 10;
Ogre::Real tooSmall = std::numeric_limits<Ogre::Real>::epsilon();
// keep camera velocity below top speed and above epsilon
if (mVelocity.squaredLength() > topSpeed * topSpeed)
{
mVelocity.normalise();
mVelocity *= topSpeed;
}
else if (mVelocity.squaredLength() < tooSmall * tooSmall)
mVelocity = Ogre::Vector3::ZERO;
if (mVelocity != Ogre::Vector3::ZERO) mCamera->move(mVelocity * evt.timeSinceLastFrame);
}
return true;
}
/*-----------------------------------------------------------------------------
| Processes key presses for free-look style movement.
-----------------------------------------------------------------------------*/
virtual void injectKeyDown(const QKeyEvent& evt)
{
if (mStyle == CS_FREELOOK)
{
if (evt.key() == Qt::Key_W || evt.key() == Qt::Key_Up) mGoingForward = true;
else if (evt.key() == Qt::Key_S || evt.key() == Qt::Key_Down) mGoingBack = true;
else if (evt.key() == Qt::Key_A || evt.key() == Qt::Key_Left) mGoingLeft = true;
else if (evt.key() == Qt::Key_D || evt.key() == Qt::Key_Right) mGoingRight = true;
else if (evt.key() == Qt::Key_PageUp) mGoingUp = true;
else if (evt.key() == Qt::Key_PageDown) mGoingDown = true;
else if (evt.key() == Qt::Key_Shift) mFastMove = true;
}
}
/*-----------------------------------------------------------------------------
| Processes key releases for free-look style movement.
-----------------------------------------------------------------------------*/
virtual void injectKeyUp(const QKeyEvent& evt)
{
if (mStyle == CS_FREELOOK)
{
if (evt.key() == Qt::Key_W || evt.key() == Qt::Key_Up) mGoingForward = false;
else if (evt.key() == Qt::Key_S || evt.key() == Qt::Key_Down) mGoingBack = false;
else if (evt.key() == Qt::Key_A || evt.key() == Qt::Key_Left) mGoingLeft = false;
else if (evt.key() == Qt::Key_D || evt.key() == Qt::Key_Right) mGoingRight = false;
else if (evt.key() == Qt::Key_PageUp) mGoingUp = false;
else if (evt.key() == Qt::Key_PageDown) mGoingDown = false;
else if (evt.key() == Qt::Key_Shift) mFastMove = false;
}
}
/*-----------------------------------------------------------------------------
| Processes mouse movement differently for each style.
-----------------------------------------------------------------------------*/
virtual void injectMouseMove(int relX, int relY)
{
// static int lastX = evt.x();
// static int lastY = evt.y();
// int relX = evt.x() - lastX;
// int relY = evt.y() - lastY;
// lastX = evt.x();
// lastY = evt.y();
if (mStyle == CS_ORBIT)
{
Ogre::Real dist = (mCamera->getPosition() - mTarget->_getDerivedPosition()).length();
if (mOrbiting) // yaw around the target, and pitch locally
{
mCamera->setPosition(mTarget->_getDerivedPosition());
mCamera->yaw(Ogre::Degree(-relX * 0.025f));
mCamera->pitch(Ogre::Degree(-relY * 0.025f));
mCamera->moveRelative(Ogre::Vector3(0, 0, dist));
// don't let the camera go over the top or around the bottom of the target
}
else if (mZooming) // move the camera toward or away from the target
{
// the further the camera is, the faster it moves
mCamera->moveRelative(Ogre::Vector3(0, 0, relY * 0.004f * dist));
}
}
else if (mStyle == CS_FREELOOK)
{
mCamera->yaw(Ogre::Degree(-relX * 0.15f));
mCamera->pitch(Ogre::Degree(-relY * 0.15f));
}
}
/*-----------------------------------------------------------------------------
| Processes mouse movement differently for each style.
-----------------------------------------------------------------------------*/
virtual void injectWheelMove(const QWheelEvent& evt)
{
int relZ = evt.delta();
if (mStyle == CS_ORBIT)
{
Ogre::Real dist = (mCamera->getPosition() - mTarget->_getDerivedPosition()).length();
if (relZ != 0) // move the camera toward or away from the target
{
// the further the camera is, the faster it moves
mCamera->moveRelative(Ogre::Vector3(0, 0, -relZ * 0.0008f * dist));
}
}
}
/*-----------------------------------------------------------------------------
| Processes mouse presses. Only applies for orbit style.
| Left button is for orbiting, and right button is for zooming.
-----------------------------------------------------------------------------*/
virtual void injectMouseDown(const QMouseEvent& evt)
{
if (mStyle == CS_ORBIT)
{
if (evt.buttons() & Qt::LeftButton) mOrbiting = true;
else if (evt.buttons() & Qt::RightButton) mZooming = true;
}
}
/*-----------------------------------------------------------------------------
| Processes mouse releases. Only applies for orbit style.
| Left button is for orbiting, and right button is for zooming.
-----------------------------------------------------------------------------*/
virtual void injectMouseUp(const QMouseEvent& evt)
{
if (mStyle == CS_ORBIT)
{
if (evt.buttons() & Qt::LeftButton) mOrbiting = false;
else if (evt.buttons() & Qt::RightButton) mZooming = false;
}
}
protected:
Ogre::Camera* mCamera;
CameraStyle mStyle;
Ogre::SceneNode* mTarget;
bool mOrbiting;
bool mZooming;
Ogre::Real mTopSpeed;
Ogre::Vector3 mVelocity;
bool mGoingForward;
bool mGoingBack;
bool mGoingLeft;
bool mGoingRight;
bool mGoingUp;
bool mGoingDown;
bool mFastMove;
};
}
#endif
widget.h
Code: Select all
#ifndef WIDGET_H
#define WIDGET_H
#include <QWidget>
#include <QGridLayout>
#include "QTOgreWindow.h"
#include "SdkQtCameraMan.h"
class Widget : public QWidget
{
Q_OBJECT
public:
Widget(QWidget *parent = 0);
~Widget();
protected:
QGridLayout* gl_layaout;
};
#endif // WIDGET_H
main.cpp
Code: Select all
#include "widget.h"
#include <QApplication>
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();
return a.exec();
}
QTOgreWindow.cpp
Code: Select all
#include "QTOgreWindow.h"
#if OGRE_VERSION >= ((2 << 16) | (0 << 8) | 0)
#include <Compositor/OgreCompositorManager2.h>
#endif
/*
Note that we pass any supplied QWindow parent to the base QWindow class. This is necessary should we
need to use our class within a container.
*/
QTOgreWindow::QTOgreWindow(QWindow *parent)
: QWindow(parent)
, m_update_pending(false)
, m_animating(false)
, m_ogreRoot(NULL)
, m_ogreWindow(NULL)
, m_ogreCamera(NULL)
, m_cameraMan(NULL)
{
setAnimating(true);
installEventFilter(this);
m_ogreBackground = Ogre::ColourValue(0.0f, 0.5f, 1.0f);
}
/*
Upon destruction of the QWindow object we destroy the Ogre3D scene.
*/
QTOgreWindow::~QTOgreWindow()
{
if (m_cameraMan) delete m_cameraMan;
delete m_ogreRoot;
}
/*
In case any drawing surface backing stores (QRasterWindow or QOpenGLWindow) of Qt are supplied to this
class in any way we inform Qt that they will be unused.
*/
void QTOgreWindow::render(QPainter *painter)
{
Q_UNUSED(painter);
}
/*
Our initialization function. Called by our renderNow() function once when the window is first exposed.
*/
void QTOgreWindow::initialize()
{
/*
As shown Ogre3D is initialized normally; just like in other documentation.
*/
#ifdef _MSC_VER
m_ogreRoot = new Ogre::Root(Ogre::String("plugins" OGRE_BUILD_SUFFIX ".cfg"));
#else
m_ogreRoot = new Ogre::Root(Ogre::String("plugins.cfg"));
#endif
Ogre::ConfigFile ogreConfig;
/*
Commended out for simplicity but should you need to initialize resources you can do so normally.
ogreConfig.load("resources/resource_configs/resources.cfg");
Ogre::ConfigFile::SectionIterator seci = ogreConfig.getSectionIterator();
Ogre::String secName, typeName, archName;
while (seci.hasMoreElements())
{
secName = seci.peekNextKey();
Ogre::ConfigFile::SettingsMultiMap *settings = seci.getNext();
Ogre::ConfigFile::SettingsMultiMap::iterator i;
for (i = settings->begin(); i != settings->end(); ++i)
{
typeName = i->first;
archName = i->second;
Ogre::ResourceGroupManager::getSingleton().addResourceLocation(
archName, typeName, secName);
}
}
*/
const Ogre::RenderSystemList& rsList = m_ogreRoot->getAvailableRenderers();
Ogre::RenderSystem* rs = rsList[0];
/*
This list setup the search order for used render system.
*/
Ogre::StringVector renderOrder;
#if defined(Q_OS_WIN)
renderOrder.push_back("Direct3D9");
renderOrder.push_back("Direct3D11");
#endif
renderOrder.push_back("OpenGL");
renderOrder.push_back("OpenGL 3+");
for (Ogre::StringVector::iterator iter = renderOrder.begin(); iter != renderOrder.end(); iter++)
{
for (Ogre::RenderSystemList::const_iterator it = rsList.begin(); it != rsList.end(); it++)
{
if ((*it)->getName().find(*iter) != Ogre::String::npos)
{
rs = *it;
break;
}
}
if (rs != NULL) break;
}
if (rs == NULL)
{
if (!m_ogreRoot->restoreConfig())
{
// if (!m_ogreRoot->showConfigDialog())
// OGRE_EXCEPT(Ogre::Exception::ERR_INVALIDPARAMS,
// "Abort render system configuration",
// "QTOgreWindow::initialize");
}
}
/*
Setting size and VSync on windows will solve a lot of problems
*/
QString dimensions = QString("%1 x %2").arg(this->width()).arg(this->height());
rs->setConfigOption("Video Mode", dimensions.toStdString());
rs->setConfigOption("Full Screen", "No");
rs->setConfigOption("VSync", "Yes");
m_ogreRoot->setRenderSystem(rs);
m_ogreRoot->initialise(false);
Ogre::NameValuePairList parameters;
/*
Flag within the parameters set so that Ogre3D initializes an OpenGL context on it's own.
*/
if (rs->getName().find("GL") <= rs->getName().size())
parameters["currentGLContext"] = Ogre::String("false");
/*
We need to supply the low level OS window handle to this QWindow so that Ogre3D knows where to draw
the scene. Below is a cross-platform method on how to do this.
If you set both options (externalWindowHandle and parentWindowHandle) this code will work with OpenGL
and DirectX.
*/
#if defined(Q_OS_MAC) || defined(Q_OS_WIN)
parameters["externalWindowHandle"] = Ogre::StringConverter::toString((size_t)(this->winId()));
parameters["parentWindowHandle"] = Ogre::StringConverter::toString((size_t)(this->winId()));
#else
parameters["externalWindowHandle"] = Ogre::StringConverter::toString((unsigned long)(this->winId()));
parameters["parentWindowHandle"] = Ogre::StringConverter::toString((unsigned long)(this->winId()));
#endif
#if defined(Q_OS_MAC)
parameters["macAPI"] = "cocoa";
parameters["macAPICocoaUseNSView"] = "true";
#endif
/*
Note below that we supply the creation function for the Ogre3D window the width and height
from the current QWindow object using the "this" pointer.
*/
m_ogreWindow = m_ogreRoot->createRenderWindow("QT Window",
this->width(),
this->height(),
false,
¶meters);
m_ogreWindow->setVisible(true);
/*
The rest of the code in the initialization function is standard Ogre3D scene code. Consult other
tutorials for specifics.
*/
#if OGRE_VERSION >= ((2 << 16) | (0 << 8) | 0)
const size_t numThreads = std::max<int>(1, Ogre::PlatformInformation::getNumLogicalCores());
Ogre::InstancingThreadedCullingMethod threadedCullingMethod = Ogre::INSTANCING_CULLING_SINGLETHREAD;
if (numThreads > 1)threadedCullingMethod = Ogre::INSTANCING_CULLING_THREADED;
m_ogreSceneMgr = m_ogreRoot->createSceneManager(Ogre::ST_GENERIC, numThreads, threadedCullingMethod);
#else
m_ogreSceneMgr = m_ogreRoot->createSceneManager(Ogre::ST_GENERIC);
#endif
m_ogreCamera = m_ogreSceneMgr->createCamera("MainCamera");
m_ogreCamera->setPosition(Ogre::Vector3(0.0f, 0.0f, 10.0f));
m_ogreCamera->lookAt(Ogre::Vector3(0.0f, 0.0f, -300.0f));
m_ogreCamera->setNearClipDistance(0.1f);
m_ogreCamera->setFarClipDistance(200.0f);
m_cameraMan = new OgreQtBites::SdkQtCameraMan(m_ogreCamera); // create a default camera controller
#if OGRE_VERSION >= ((2 << 16) | (0 << 8) | 0)
createCompositor();
#else
Ogre::Viewport* pViewPort = m_ogreWindow->addViewport(m_ogreCamera);
pViewPort->setBackgroundColour(m_ogreBackground);
#endif
m_ogreCamera->setAspectRatio(
Ogre::Real(m_ogreWindow->getWidth()) / Ogre::Real(m_ogreWindow->getHeight()));
m_ogreCamera->setAutoAspectRatio(true);
Ogre::TextureManager::getSingleton().setDefaultNumMipmaps(5);
Ogre::ResourceGroupManager::getSingleton().initialiseAllResourceGroups();
createScene();
m_ogreRoot->addFrameListener(this);
}
void QTOgreWindow::createScene()
{
/*
Example scene
Derive this class for your own purpose and overwite this function to have a working Ogre widget with
your own content.
*/
m_ogreSceneMgr->setAmbientLight(Ogre::ColourValue(0.5f, 0.5f, 0.5f));
#if OGRE_VERSION >= ((2 << 16) | (0 << 8) | 0)
Ogre::Entity* sphereMesh = m_ogreSceneMgr->createEntity(Ogre::SceneManager::PT_SPHERE);
#else
Ogre::Entity* sphereMesh = m_ogreSceneMgr->createEntity("mySphere", Ogre::SceneManager::PT_SPHERE);
#endif
Ogre::SceneNode* childSceneNode = m_ogreSceneMgr->getRootSceneNode()->createChildSceneNode();
childSceneNode->attachObject(sphereMesh);
Ogre::MaterialPtr sphereMaterial = Ogre::MaterialManager::getSingleton().create("SphereMaterial",
Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME, true);
sphereMaterial->getTechnique(0)->getPass(0)->setAmbient(0.1f, 0.1f, 0.1f);
sphereMaterial->getTechnique(0)->getPass(0)->setDiffuse(0.2f, 0.2f, 0.2f, 1.0f);
sphereMaterial->getTechnique(0)->getPass(0)->setSpecular(0.9f, 0.9f, 0.9f, 1.0f);
//sphereMaterial->setAmbient(0.2f, 0.2f, 0.5f);
//sphereMaterial->setSelfIllumination(0.2f, 0.2f, 0.1f);
sphereMesh->setMaterialName("SphereMaterial");
childSceneNode->setPosition(Ogre::Vector3(0.0f, 0.0f, 0.0f));
childSceneNode->setScale(Ogre::Vector3(0.01f, 0.01f, 0.01f)); // Radius, in theory.
#if OGRE_VERSION >= ((2 << 16) | (0 << 8) | 0)
Ogre::SceneNode* pLightNode = m_ogreSceneMgr->getRootSceneNode()->createChildSceneNode();
Ogre::Light* light = m_ogreSceneMgr->createLight();
pLightNode->attachObject(light);
pLightNode->setPosition(20.0f, 80.0f, 50.0f);
#else
Ogre::Light* light = m_ogreSceneMgr->createLight("MainLight");
light->setPosition(20.0f, 80.0f, 50.0f);
#endif
}
#if OGRE_VERSION >= ((2 << 16) | (0 << 8) | 0)
void QTOgreWindow::createCompositor()
{
/*
Example compositor
Derive this class for your own purpose and overwite this function to have a working Ogre
widget with your own compositor.
*/
Ogre::CompositorManager2* compMan = m_ogreRoot->getCompositorManager2();
const Ogre::String workspaceName = "default scene workspace";
const Ogre::IdString workspaceNameHash = workspaceName;
compMan->createBasicWorkspaceDef(workspaceName, m_ogreBackground);
compMan->addWorkspace(m_ogreSceneMgr, m_ogreWindow, m_ogreCamera, workspaceNameHash, true);
}
#endif
void QTOgreWindow::render()
{
/*
How we tied in the render function for OGre3D with QWindow's render function. This is what gets call
repeatedly. Note that we don't call this function directly; rather we use the renderNow() function
to call this method as we don't want to render the Ogre3D scene unless everything is set up first.
That is what renderNow() does.
Theoretically you can have one function that does this check but from my experience it seems better
to keep things separate and keep the render function as simple as possible.
*/
// Ogre::WindowEventUtilities::messagePump();
m_ogreRoot->renderOneFrame();
}
void QTOgreWindow::renderLater()
{
/*
This function forces QWindow to keep rendering. Omitting this causes the renderNow() function to
only get called when the window is resized, moved, etc. as opposed to all of the time; which is
generally what we need.
*/
if (!m_update_pending)
{
m_update_pending = true;
QApplication::postEvent(this, new QEvent(QEvent::UpdateRequest));
}
}
bool QTOgreWindow::event(QEvent *event)
{
/*
QWindow's "message pump". The base method that handles all QWindow events. As you will see there
are other methods that actually process the keyboard/other events of Qt and the underlying OS.
Note that we call the renderNow() function which checks to see if everything is initialized, etc.
before calling the render() function.
*/
switch (event->type())
{
case QEvent::UpdateRequest:
m_update_pending = false;
renderNow();
return true;
default:
return QWindow::event(event);
}
}
/*
Called after the QWindow is reopened or when the QWindow is first opened.
*/
void QTOgreWindow::exposeEvent(QExposeEvent *event)
{
Q_UNUSED(event);
if (isExposed())
renderNow();
}
/*
The renderNow() function calls the initialize() function when needed and if the QWindow is already
initialized and prepped calls the render() method.
*/
void QTOgreWindow::renderNow()
{
if (!isExposed())
return;
if (m_ogreRoot == NULL)
{
initialize();
}
render();
if (m_animating)
renderLater();
}
/*
Our event filter; handles the resizing of the QWindow. When the size of the QWindow changes note the
call to the Ogre3D window and camera. This keeps the Ogre3D scene looking correct.
*/
bool QTOgreWindow::eventFilter(QObject *target, QEvent *event)
{
if (target == this)
{
if (event->type() == QEvent::Resize)
{
if (isExposed() && m_ogreWindow != NULL)
{
m_ogreWindow->resize(this->width(), this->height());
}
}
}
return false;
}
/*
How we handle keyboard and mouse events.
*/
void QTOgreWindow::keyPressEvent(QKeyEvent * ev)
{
if(m_cameraMan)
m_cameraMan->injectKeyDown(*ev);
}
void QTOgreWindow::keyReleaseEvent(QKeyEvent * ev)
{
if(m_cameraMan)
m_cameraMan->injectKeyUp(*ev);
}
void QTOgreWindow::mouseMoveEvent( QMouseEvent* e )
{
static int lastX = e->x();
static int lastY = e->y();
int relX = e->x() - lastX;
int relY = e->y() - lastY;
lastX = e->x();
lastY = e->y();
if(m_cameraMan && (e->buttons() & Qt::LeftButton))
m_cameraMan->injectMouseMove(relX, relY);
}
void QTOgreWindow::wheelEvent(QWheelEvent *e)
{
if(m_cameraMan)
m_cameraMan->injectWheelMove(*e);
}
void QTOgreWindow::mousePressEvent( QMouseEvent* e )
{
if(m_cameraMan)
m_cameraMan->injectMouseDown(*e);
}
void QTOgreWindow::mouseReleaseEvent( QMouseEvent* e )
{
if(m_cameraMan)
m_cameraMan->injectMouseUp(*e);
QPoint pos = e->pos();
Ogre::Ray mouseRay = m_ogreCamera->getCameraToViewportRay(
(Ogre::Real)pos.x() / m_ogreWindow->getWidth(),
(Ogre::Real)pos.y() / m_ogreWindow->getHeight());
Ogre::RaySceneQuery* pSceneQuery = m_ogreSceneMgr->createRayQuery(mouseRay);
pSceneQuery->setSortByDistance(true);
Ogre::RaySceneQueryResult vResult = pSceneQuery->execute();
for (size_t ui = 0; ui < vResult.size(); ui++)
{
if (vResult[ui].movable)
{
if (vResult[ui].movable->getMovableType().compare("Entity") == 0)
{
emit entitySelected((Ogre::Entity*)vResult[ui].movable);
}
}
}
m_ogreSceneMgr->destroyQuery(pSceneQuery);
}
/*
Function to keep track of when we should and shouldn't redraw the window; we wouldn't want to do
rendering when the QWindow is minimized. This takes care of those scenarios.
*/
void QTOgreWindow::setAnimating(bool animating)
{
m_animating = animating;
if (animating)
renderLater();
}
bool QTOgreWindow::frameRenderingQueued(const Ogre::FrameEvent& evt)
{
m_cameraMan->frameRenderingQueued(evt);
return true;
}
void QTOgreWindow::log(Ogre::String msg)
{
if(Ogre::LogManager::getSingletonPtr() != NULL) Ogre::LogManager::getSingletonPtr()->logMessage(msg);
}
void QTOgreWindow::log(QString msg)
{
log(Ogre::String(msg.toStdString().c_str()));
}
widget.cpp
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#include "widget.h"
Widget::Widget(QWidget *parent)
: QWidget(parent)
{
gl_layaout = new QGridLayout(parent);
QTOgreWindow * ogreWindow = new QTOgreWindow ();
ogreWindow->show();
QWidget *container = QWidget::createWindowContainer(ogreWindow);
gl_layaout->addWidget(container);
this->setLayout(gl_layaout);
}
Widget::~Widget()
{
}
plugin.cfg
# Define plugin folder
PluginFolder=/usr/local/lib/OGRE
Code: Select all
# Define plugins
# Plugin=RenderSystem_Direct3D9
# Plugin=RenderSystem_Direct3D11
Plugin=RenderSystem_GL
Plugin=RenderSystem_GL3Plus
Plugin=RenderSystem_GLES2
# Plugin=RenderSystem_Metal
# Plugin=RenderSystem_Tiny
Plugin=Plugin_ParticleFX
Plugin=Plugin_BSPSceneManager
# Plugin=Plugin_CgProgramManager
Plugin=Codec_EXR
Plugin=Codec_STBI
# Plugin=Codec_FreeImage
Plugin=Plugin_PCZSceneManager
Plugin=Plugin_OctreeZone
Plugin=Plugin_OctreeSceneManager
Plugin=Plugin_DotScene
# Plugin=Codec_Assimp