[vtkusers] set image as background

[Giancarlo Amati]

Thanks guys that's roughly what I wanted to get to.
althought he image should fill in the window viewport. :) instead of staying right there

Many thanks!!!

> From: david.gobbi at gmail.com
> Date: Thu, 11 Feb 2010 09:24:39 -0700
> Subject: Re: [vtkusers] set image as background
> To: ilferraresebono at hotmail.it
> CC: daviddoria+vtk at gmail.com; vtkusers at vtk.org
> 
> I don't think that it is enough to just set up the layers, because by
> default the Renderer will always erase everything and set the
> background color.
> 
> Try renderer->EraseOff() on all but the rear-most renderer.
> 
> Note that EraseOff will also keep the depth buffer from being cleared
> between renders, so you will have to manually set the camera position
> and camera clipping planes in your background renderer so that the
> image is just barely in front of the rear clipping plane.
> 
>   David
> 
> 
> On Thu, Feb 11, 2010 at 9:20 AM, Giancarlo Amati
> <ilferraresebono at hotmail.it> wrote:
> > Yup, it's roughly the same structure my code has.
> > But apparently whatever is the order or the AddRenderer..... the one
> > containing the image seems prevailing over the other one
> >
> > Many thanks anyway!
> >
> >
> > ________________________________
> > Date: Thu, 11 Feb 2010 11:08:50 -0500
> > From: daviddoria+vtk at gmail.com
> > CC: vtkusers at vtk.org
> > Subject: Re: [vtkusers] set image as background
> >
> > On Thu, Feb 11, 2010 at 10:54 AM, Giancarlo Amati
> > <ilferraresebono at hotmail.it> wrote:
> >
> > mmm now it get confusing because that's the style of my code:
> >
> > this is the declaration:
> >     vtkSmartPointer<vtkRenderer> L0= vtkSmartPointer<vtkRenderer>::New();
> >     vtkSmartPointer<vtkCamera> camL0 = vtkCamera::New();
> >
> >
> >     vtkSmartPointer<vtkRenderer> L1 = vtkSmartPointer<vtkRenderer>::New();
> >     vtkSmartPointer<vtkCamera> camL1 = vtkCamera::New();
> >
> >
> >     vtkSmartPointer<vtkRenderWindow> renderWindow =
> > vtkSmartPointer<vtkRenderWindow>::New();
> >     renderWindow->SetSize(720,576);
> >
> >
> > Than I create a plane with texture the image I load up and then... I add the
> > plane to L1;
> > L0->AddActor(Scene);
> > L1->AddActor(texturedPlane);
> >
> > renderWindow->AddRenderer(L0);
> > renderWindow->AddRenderer(L1);
> >
> > and I call start() of the interactor.
> >
> > but I just got my Texture rendered..but not the 3D Model. so what u mean
> > with Layers?
> >
> > Regards.
> > Giancarlo
> >
> > I tried to make a demo of this:
> > http://www.vtk.org/Wiki/VTK/Examples/BackgroundImage
> > However, it seems like one renderer covers up the other. For now it is just
> > trying to display an ImageActor in backgroundRenderer and then a sphere in
> > sceneRenderer.
> > Thanks,
> >
> > David
 		 	   		  
_________________________________________________________________
Tutto lo spazio che ti serve, lo trovi su Hotmail
http://www.windowslive.it/hotmail/SpazioDisponibile.aspx
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20100211/bff0522e/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: demo.jpg
Type: image/jpeg
Size: 57671 bytes
Desc: not available
URL: <http://www.vtk.org/pipermail/vtkusers/attachments/20100211/bff0522e/attachment.jpg>