Irrlicht Engine

Posted: **Thu Sep 24, 2009 8:51 am**

Hello,

for a project of mine i needed a fully fledged widget to integrate Irrlicht into a Qt Application. Currently the Widget features the following

Compiles out of the Box with Qt 4.6 TP1 and Irrlicht SVN
Emits signals for: Mouse Press/Release, Mouse move, Keyboard Press/Release (On Linux, disables the nasty X11 Autorepeat which generates Key press/release events on it's own)
Supports all Irrlicht supported rendering Subsystems
Resizes correctly
Fully documented

Download here: http://uploaded.to/file/di5cq8 (or from my blog)

Egon

Posted: **Tue Sep 29, 2009 3:43 pm**

Hm, I need to find some small tool where I can use QT to test this some day :-) I want to try out Qt for so long already and never find time...

Under which license can it be used?

Posted: **Wed Oct 28, 2009 1:12 pm**

Hi, I looking for a way to use the Maya (or FPS) camera from your Qt integration. What is missing?

Posted: **Fri Oct 30, 2009 8:37 am**

Ok, I found something. Implementing this event handler I can move my Maya camera.
However, the movements seem a bit buggy, it's just as if Irricht kept memorized the previews mouse position between two actions.

Code: Select all

void QIrrlichtWidget::mouseMoveEvent( QMouseEvent* event )
{
    irr::SEvent irrEvent;
   
    irrEvent.EventType = irr::EET_MOUSE_INPUT_EVENT;

    if ( device != 0 )
    {
		irrEvent.MouseInput.Event = irr::EMIE_MOUSE_MOVED;
		irrEvent.MouseInput.X = event->x();
		irrEvent.MouseInput.Y = event->y();
		irrEvent.MouseInput.Wheel = 0.0f; // Zero is better than undefined
		if(device->postEventFromUser( irrEvent ))
			event->accept();

    }
}

Posted: **Thu Nov 05, 2009 3:58 pm**

I'm going into lot of trouble with qt and IrrLicht integration.

Since Irrlicht renders in an external window, Irrlicht disables resizing calls to CIrrDeviceWin32. But when using a mouse camera like Maya, it gets the mouse position from the CIrrDeviceWin32 CursorControl. When I resize the window, the mouse position is not updated correctly.

Is that a correct behaviour? is there a way to handle a Maya cam from an external window manager?

Posted: **Thu Nov 05, 2009 5:03 pm**

That's a bug that was recently fixed. Should be in 1.6.1 once it's out, but you can also use SVN versions to get the fix.

Posted: **Fri Nov 06, 2009 2:27 pm**

Ok thanx for the info. Ive made my own qt camera controller for my current project, will test the fix in the future version

Posted: **Fri Nov 27, 2009 2:04 am**

i'm having some problems to add the widget in some ui.

I always get this error

QIrrlichtWidget::ctor()

The program has unexpectedly finished.

/home/jcfalcone/workspace/Projetos/Jogos/3d_Engine/3d_Engine exited with code 0

And this is my code

Code: Select all

    QIrrlichtWidget *irrWidget = new QIrrlichtWidget(this);

    ui->gridLayout->addWidget(irrWidget, 0, 0, 1, 1);

Any Idea?[/code]

Posted: **Wed Dec 30, 2009 4:42 pm**

did you put irrlicht dll file to your directory?

Posted: **Thu May 20, 2010 11:45 am**

I'm still stuck at the first step... downloading the software!

Your blog seems having some troubles and I can't download from the other link as well...

Posted: **Wed Jun 23, 2010 12:23 am**

Edit: Even though the link on the first post was broken I was able to find a copy here: http://egonrath.eg.funpic.de/wordpress/ ... 17.tar.bz2

Posted: **Sat Jun 26, 2010 5:07 pm**

HI,
I am using unubtu and trying to compile this example with irrliht 1.7.1 , but i get errors: QIrrlichtWidget.cpp|188|error: cast from ‘void*’ to ‘irr::u32’ loses precision| line is :

Code: Select all

qDebug() << "   native window ID      = " << ( irr::u32 ) createParams.WindowId;

if i remove ( irr::u32 ) then in Application.cpp shows error on "Application::Application()"|42|undefined reference to `vtable for Application'|

Posted: **Mon Jun 28, 2010 11:18 am**

Pazystamo wrote:HI,
I am using unubtu and trying to compile this example with irrliht 1.7.1 , but i get errors: QIrrlichtWidget.cpp|188|error: cast from ‘void*’ to ‘irr::u32’ loses precision| line is :
Code: Select all
qDebug() << "   native window ID      = " << ( irr::u32 ) createParams.WindowId;
if i remove ( irr::u32 ) then in Application.cpp shows error on "Application::Application()"|42|undefined reference to `vtable for Application'|

I had the same error (also using Ubuntu btw). I just commented out the (irr::u32) and it compiles properly. I know just removing bits of code that generate errors generally isn't a good idea but it seemed to work for me

Code: Select all

qDebug() << "   native window ID      = " << /*( irr::u32 )*/ createParams.WindowId;

Posted: **Mon Jun 28, 2010 11:23 am**

The WindowID has changed to a platform dependant struct, which you have to cast to specifically. The value would be completely useless otherwise.

Irrlicht Engine

Widget for embedding into Qt

Widget for embedding into Qt

interactive camera integration