[vtk-developers] question about vtkOpenGLVolumeTextureMapper3D backward compatibility and version number

[Arnaud GELAS]

Hi all,

vtkOpenGLVolumeTextureMapper3D's API has recently changed, and methods:
*

vtkOpenGLVolumeTextureMapper3D::IsRenderSupported(vtkVolumeProperty*)


*became

**

vtkOpenGLVolumeTextureMapper3D::IsRenderSupported(vtkVolumeProperty* , vtkRenderer* )



**Our application used this code, some of our developers are using the 
release vtk 5.6, some are using the git version. We thus experience some 
problem here due to the non-backward compatibility. What's the policy 
with backward compatibility?

Could it be possible to keep the first method as deprecated? (no is an 
OK answer)

We were also considering checking version of vtk, and depending on the 
version use the first implementation or the second one. But it just 
happened that ${VTK_VERSION} for both are 5.7.0 ...

Is there a way to differentiate these two versions via CMake?

Thanks for your answers,
Regards,
Arnaud
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