[vtkusers] GLSL and vtk

[Dave Semeraro]

Excellent,

I look forward to the document.

Dave
At 04:35 PM 10/20/2005, Utkarsh Ayachit wrote:
>Cg/GLSL shader support has been recently added to VTK. It's still under
>development. We are in the process of finalizing the API and adding
>standard shaders. Also, a document will soon be made available detailing
>the use of the shaders in VTK.
>
>In the meanwhile:
>* To turn the shader support on, one has to set USE_VTK_GLSL_SHADERS
>and/or USE_VTK_CG_SUPPORT cmake cache variables.
>* There are 2 testing scripts in Rendering/Testing/Tcl named
>TestCgShader.tcl and TestGLSLShader.tcl which illustrate the use of a
>shader.
>
>Shaders in VTK are made available in form of Materials. Material
>description is a xml which describes the shader(s) to use and several
>uniform parameters etc. We will soon have a document describing the
>detailed architecture and how to write new materials and use Cg/GLSL code.
>
>Utkarsh.
>
>Dave Semeraro wrote:
> >
> > Hello folks,
> >
> > I was browsing the Documentation for vtk 4.n today and found a few
> > classes related
> > to hardware shaders. I am particularly interested in the GLSL classes.
> > Does anyone
> > have a simple example of how the various shader related classes work in
> > a vtk
> > pipeline? How does one load a fragment or vertex program in and how does it
> > get compiled etc. ? Does anyone have a library of useful shaders they
> > would be
> > willing to share?
> >
> > Regards,
> > Dave
> >
> >
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