[vtkusers] GPU Memory Detection

[Sankhesh Jhaveri]

Could you try the development version of VTK?

You can clone the latest version using git as documented here:
https://gitlab.kitware.com/vtk/vtk/blob/master/Documentation/dev/git/download.md#clone


*Sankhesh​*



On Mon, Sep 12, 2016 at 12:21 PM, ianl <ilindsay at insigniamedical.co.uk>
wrote:

> Hi all,
>
> I am seeing a lot of out of memory errors when loading large data sets for
> volume rendering with the new VTK 7.0 release. These are as follows:
>
> vtkTextureObject (424DB080): failed at glTexImage2D 1 OpenGL errors
> detected
>   0 : (1285) Out of memory
>
> These sets used to display fine with VTK 6.1, and now no longer do in VTK
> 7.0 . The set is not particularly large - a 512x512, 266 slice CT stack.
> Smaller sets render fine so there is no fundamental issue. One oddity I
> have
> noticed is that the GPU memory is being reported as being 128 MB (actually
> a
> 2GB card) which is what happens when the vtkDummyGPUInfoList is used rather
> than the vtkDirectXGPUInfoList to probe the available graphics memory. This
> used to be caused by not having the DirectX SDK installed in previous
> versions with similar visual symptoms (invisible volumes, only first/last
> slice drawn, etc). I notice that this class is not actually present in the
> Rendering/OpenGL2 source file directory, but is in the OpenGL directory.
>
> So the question is - has this been replaced by a purely OpenGL mechanism
> which I somehow need to 'turn on' using CMake / compiler switches, etc? Am
> I
> barking up completely the wrong tree - is the new OpenGL2 version
> inherently
> more heavyweight?
>
> I am building on Windows 10 with the June 2010 DirectX SDK installed,
> Visual
> Studio 2012, 32/64 bit build with the VTK_USE_64BIT_IDS flag on. The GPU is
> a 2GB AMD Radeon R7 200 with the latest drivers.
>
> Thanks in advance for any light shed on this, it has me stumped currently.
>
>
>
> --
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> com/GPU-Memory-Detection-tp5740281.html
> Sent from the VTK - Users mailing list archive at Nabble.com.
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