[SOLVED]GUI transparency

[Rampage]

Hello, i have a problem with gui transaprency. When i have rendering enabled with

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CEGUI::System::getSingleton().renderGUI()

All my other objects are not visible. When i change my default fulscreen window property to not visible,all child gui windows disapear, but i have only empty screen without my objects. When i comment code to render gui, all my objects are visible correctly. How it is possible?

[Kulik]

This post is lacking lots of information, as you are new I am not gonna downvote you but please read the guidelines. It's impossible to help using the info you provided.

[Rampage]

So, again, i read all the documents to cegui.

i init with

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        CEGUI::Direct3D9Renderer::bootstrapSystem(m_pDirect3DDevice);

   // initialise the required dirs for the DefaultResourceProvider
   CEGUI::DefaultResourceProvider* rp = static_cast<CEGUI::DefaultResourceProvider*>(CEGUI::System::getSingleton().getResourceProvider());
 
   rp->setResourceGroupDirectory("schemes", "datafiles/schemes/");
   rp->setResourceGroupDirectory("imagesets", "datafiles/imagesets/");
   rp->setResourceGroupDirectory("fonts", "datafiles/fonts/");
   rp->setResourceGroupDirectory("layouts", "datafiles/layouts/");
   rp->setResourceGroupDirectory("looknfeels", "datafiles/looknfeel/");
   rp->setResourceGroupDirectory("lua_scripts", "datafiles/lua_scripts/");
 
   // set the default resource groups to be used
   CEGUI::Imageset::setDefaultResourceGroup("imagesets");
   CEGUI::Font::setDefaultResourceGroup("fonts");
   CEGUI::Scheme::setDefaultResourceGroup("schemes");
   CEGUI::WidgetLookManager::setDefaultResourceGroup("looknfeels");
   CEGUI::WindowManager::setDefaultResourceGroup("layouts");
   CEGUI::ScriptModule::setDefaultResourceGroup("lua_scripts");

   // load in the scheme file, which auto-loads the TaharezLook imageset
   CEGUI::SchemeManager::getSingleton().create( "TaharezLook.scheme" );

   // load in a font. The first font loaded automatically becomes the default font.
   CEGUI::FontManager::getSingleton().create( "DejaVuSans-10.font" );

   CEGUI::System::getSingleton().setDefaultFont( "DejaVuSans-10" );
   CEGUI::System::getSingleton().setDefaultMouseCursor( "TaharezLook", "MouseArrow" );
   
   m_wndRoot = CEGUI::WindowManager::getSingleton().loadWindowLayout( "submarine.layout" );
   CEGUI::System::getSingleton().setGUISheet( m_wndRoot );
   //CEGUI::System::getSingleton().getGUISheet()->hide();

   //subscribing events here      


then i render it in func

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        m_pDirect3DDevice->BeginScene();
   
   //drawing all objects here
   // draw GUI
   CEGUI::System::getSingleton().renderGUI();
   m_pDirect3DDevice->EndScene();


my xml.layout looks loke

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<Window Type="DefaultWindow" Name="wndRoot" >
    <Property Name="UnifiedAreaRect" Value="{{0,0},{0,0},{1,0},{1,0}}" />
    <Property Name="Alpha" Value="0" />
    <Property Name="AlwaysOnTop" Value="False" />
    <Window Type="TaharezLook/FrameWindow" Name="wndMenu" >
      <Property Name="InheritsAlpha" Value="False" />
      <Property Name="Visible" Value="True" />
      <Property Name="Font" Value="DejaVuSans-10" />
      <Property Name="AlwaysOnTop" Value="True" />
      <Property Name="TitlebarFont" Value="DejaVuSans-10" />
      <Property Name="RollUpEnabled" Value="False" />
      <Property Name="TitlebarEnabled" Value="True" />
      <Property Name="UnifiedPosition" Value="{ {0.25, 0}, {0.25, 0} }" />
      <Property Name="UnifiedSize" Value="{ {0.5, 0}, {0.5, 0} }" />
      <Property Name="DragMovingEnabled" Value="False" />
      <Property Name="CloseButtonEnabled" Value="False" />
      //some other subwindows
      </Window>
    </Window>


When i comment line with cegui::render() in rendering func, all my objects are shown correctly, when the line is not commented only gui is visible. My directX objects rendering methods allways return success. When i hide my gui sheet with hide() method, the gui is hidden, but my objects are again not visible.

I think there has to be a problem with default window transparency, or somethink like that.

[CrazyEddie]

CEGUI does not save and restore the D3D states, so you should do that around the call the System::renderGUI.

CE.

[Rampage]

CEGUI does not save and restore the D3D states, so you should do that around the call the System::renderGUI.

CE.

Hmm, how should i do that please? I am really desparate.

I dont know exactly, what you thik. If it is testing this

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//check device
   bool ret = true;
   switch(m_pDirect3DDevice->TestCooperativeLevel())
   {
   case D3DERR_DEVICELOST:
      ret = false;
      break;
   case D3DERR_DEVICENOTRESET:
      {
         m_font->OnLostDevice();
         //reset device
         if(FAILED(m_pDirect3DDevice->Reset(&m_PresentParameters)))
         {
            assert(false);
            SMCLog::DebugPrint("[GUI]","Reset() failed!");
            ret = false;
            break;
         }

         //init scene again
         InitScene();
         m_font->OnResetDevice();
      }
      break;
   }
   return ret;

This code i allready have implemented


So what are the possibilities that can happen? why cant i see my objects when gui is shown? I really cant get it... . Is there any code i can provide, that you can help me?

When i have empty gui.layout file, so i am rendering only mouse cursor, my objects are also hidden. There have to be init errors or something.i cant uderstand this sitation


EDIT: i found out, when i comment all the gui code, except bootstrapsystem() and renderGUI() my objects are still invisible.. How is that possible?

[Kulik]

You have to save the D3D state before renderGUI is called, then restore it when renderGUI is finished. In many cases this is not needed because the rendering code sets everything up every frame (this is more or less a standard I would say).

Googling for D3D state save and restore will get you a long way. There also was a thread not long ago discussing this.

[MarkR]

This thread contains the rendering part of the ts3 overlay, which works with nearly(?) all d3d9 games.
It stores the rendering state for the underlying application and also sets a senseful default state for the CEGUI.
Not the most efficient if you know what the application is doing, but at least it should work.
You may strip down the solution after you have confirmed that this solves your problem.

viewtopic.php?f=10&t=5594&p=26655#p26655

[Rampage]

thx to all, the state saving and refreshing solved my problem.