[vtk-developers] VTK Shaders on volume property / GPU Volume Rendering

[Utkarsh Ayachit]

Hi Wagner,

Although shaders are loaded in a vtkProperty, it does not preclude 
anyone eg. mappers, renderers from creating vtkShaderProgram objects and 
directly loading material xmls on them.

There is an ongoing effort at Kitware towards making use of shaders more 
accessible in mappers, renderers i.e. breaking the link between 
vtkProperty and Shaders and even decouple materials and shaders. 
However, it will be a while before it becomes part of VTK.

Utkarsh

Wagner Sales wrote:
> Hi all,
> 
> First of all, I'm interested in volume rendering by using GPU 
> programming techniques.
> The Kitware Quaterly Newsletter/November 2006 contains some informations 
> about VTKShaders, and after a internet search, I was found the 
> VtkHWShaders.pdf, that's to me are the concepts to VTKShaders 
> implementation.
> And, finally, looking at nightly source code documentation, I was found 
> the shaders support on vtkProperty, but not in vtkVolumeProperty. After 
> that, I have some questions:
> 
> 1 - Are the mentioned ( and implemented ) aproach for vtkProperty, 
> documented in VtkHWShaders.pdf, a reasonably way to implement suport for 
> shaders and GPU Volume Rendering? This aproach requires to implement VTK 
> Shaders in vtkVolumeProperty, like was implemented in vtkProperty.
> 
> 2 - If the answer are yes, how difficulties may be can encountered to a 
> developer that's will implement this?
> 
> 3 - Are some good point of start to do this task?
> 
> 4 -  Have some ongoing work about this?
> 
> 5 - Some tips? Documentations?
> 
> 
> I must appreciate any help from yours.
> 
> Thanks in advance,
> 
> Wagner Sales
> 
> 
> ------------------------------------------------------------------------
> 
> _______________________________________________
> vtk-developers mailing list
> vtk-developers at vtk.org
> http://www.vtk.org/mailman/listinfo/vtk-developers