[vtk-developers] Offscreen rendering OpenGL, linux, leaks memory

[Dan Lipsa]

I merged in a fix for this
https://gitlab.kitware.com/vtk/vtk/merge_requests/1556


On Fri, Jun 10, 2016 at 3:54 PM, Dan Lipsa <dan.lipsa at kitware.com> wrote:

> We tried the test program on two platforms:
>
> 1. OpenGL vendor string: VMware, Inc.
> OpenGL renderer string: Gallium 0.4 on llvmpipe (LLVM 3.6, 256 bits)
> OpenGL version string: 2.1 Mesa 11.0.7
>
> Here the leak is about 70MB for 10000. Here our collaborator run the
> equivalent python program.
> He connected to a linux machine using TigerVNC.
>
> 2. OpenGL vendor string: NVIDIA Corporation
> OpenGL renderer string: Quadro K2000/PCIe/SSE2
> OpenGL core profile version string: 4.2.0 NVIDIA 304.131
> OpenGL core profile shading language version string: 4.20 NVIDIA via Cg
> compiler
>
> Here the leak is about 20 MB for 10000 iterations.
>
> On Fri, Jun 10, 2016 at 9:40 AM, Dan Lipsa <dan.lipsa at kitware.com> wrote:
>
>> Thanks Dave. This is a great idea. I will test this and report back.
>>
>> Beyond that, the debugging tools are failing us and I don't see many
>>> other options than to start cutting out bits of the code to locate the
>>> problem. See if the leak goes away when, e.g.
>>> vtkOpenGLRenderer::DeviceRender is bypassed and go from there.
>>>
>>
>> Indeed. Thanks for the pointer.
>>
>> Dan
>>
>>
>
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