[vtk-developers] vtkClipPlanesPainter

[Karthik Krishnan]

Hi Cory,

I'd love to take a look at your FBO classes too. If you could send them off
the list to me, it'd be perfect.

Thanks
-karthik

On 2/7/07, Cory Quammen <cquammen at cs.unc.edu> wrote:
>
> > In short, painters might help you implement a multi-pass algorithm, but
> > they probably won't get you all the way.  Surely there must be a better
> > mechanism for setting up multi-pass algorithms, but I have not thought
> > of one.
> >
> > -Ken
> >
>
> My solution for accessing framebuffer objects from VTK involves two
> classes, vtkFBORenderer, a subclass of vtkOpenGLRenderer and
> vtkFBOTexture, a subclass of vtkOpenGLTexture. To use these classes,
> you first pass a vtkFBOTexture to the vtkFBORenderer. Then, you drop
> the vtkFBORenderer in wherever you previously had a vtkRenderer.
>
> Prior to rendering, the vtkFBORenderer invokes methods in
> vtkFBOTexture to enable the FBO as the target framebuffer. After
> rendering, another vtkFBOTexture method is called to set the target
> framebuffer to the default one.
>
> You can use the vtkFBOTexture just as you would any other vtkTexture.
> To set up a multipass rendering algorithm, you could in principle use
> several vtkFBOTextures that you pass in to your vtkFBORenderer at
> various passes.
>
> I've successfully used these classes in an application, both as simply
> a replacement for the standard vtkOpenGLRenderer and for getting
> access to floating-point blending.
>
> Please let me know if you'd like to know more. I'd be happy to
> contribute these as VTK classes.
>
> Hope that helps,
> Cory
>
> --
> Cory Quammen
> Department of Computer Science
> University of North Carolina at Chapel Hill
> http://www.cs.unc.edu/~cquammen
> _______________________________________________
> vtk-developers mailing list
> vtk-developers at vtk.org
> http://www.vtk.org/mailman/listinfo/vtk-developers
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/vtk-developers/attachments/20070215/5181116c/attachment.html>