[vtk-developers] [vtkusers] VTK 7.1 error "Shader failed to compile" with GPU Volume rendering and clipping planes

[Simon Esneault]

Hello,
I created a merge request here
https://gitlab.kitware.com/vtk/vtk/merge_requests/2583

Thanks,
Simon

2017-03-10 14:52 GMT+01:00 Simon ESNEAULT <simon.esneault at gmail.com>:

> Hello,
>
> I've found the error, it is located in vtkVolumeShaderComposer.h, if
> someone use GPU volume rendering, cropping and clipping at the same time,
> the variable vec4 temp gets declared twice.
> Renaming 'temp' to 'temp_clip' fix the crash.
>
> HTH someone ;)
>
> Simon
>
> 2017-03-08 10:35 GMT+01:00 Simon ESNEAULT <simon.esneault at gmail.com>:
>
>> Hello,
>>
>> After the migration to VTK 7.1, we get a crash in the shader program (it
>> can't be build) when trying to use clipping planes on GPU volume rendering
>> mapper
>>
>> The error is :
>> Error:      ERROR: In C:\Dev\ES-Externals\superbuild
>> \VTK\src\Rendering\OpenGL2\vtkShaderProgram.cxx, line 395
>> vtkShaderProgram (000001FEBFB646D0): 0(474) : error C1038: declaration of
>> "temp" conflicts with previous declaration at 0(426)
>>
>> it appears the variable Vec4 temp is declared twice...
>>
>> Here is the full log
>> https://paste.ee/p/FsdWx
>>
>> On Windows 10, VTK is built in 64 bits with Visual Studio 2013 along with
>> Qt 5.3.2 and other libraries.
>>
>> Ring a bell to anyone ?
>>
>> Thanks
>> Simon
>>
>> --
>> ------------------------------------------------------------------
>> Simon Esneault
>> Rennes, France
>> ------------------------------------------------------------------
>>
>
>
>
> --
> ------------------------------------------------------------------
> Simon Esneault
> Rennes, France
> ------------------------------------------------------------------
>



-- 
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Simon Esneault
Rennes, France
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