[vtk-developers] Rendering hangs in viewport

[Will Schroeder]

Okay we have a VTK hackathon tomorrow, I'll talk with some of the folks
there....

Best,
W

On Tue, Jul 5, 2016 at 2:17 PM, Taras Shchehelskyi <shchegelskij at gmail.com>
wrote:

> I did. Out app work only in 64bit mode. I see that VTK really uses
> vtkAtomicInt64 for GlobalTimeStamp. But what about next line
>
> *this->ModifiedTime = (unsigned long)++GlobalTimeStamp;*  (in
> vtkTimeStamp::Modified())
>
>
>
> Also I checked and everywhere in code timestamp is unsigned long. In
> windows x64 unsigned long is 32bit type. So despite 64bit vtkAtomicInt64 we
> still have conversion to unsigned long.
>
>
>
> Thanks,
>
> Taras
>
>
>
>
>
> *From: *Will Schroeder <will.schroeder at kitware.com>
> *Sent: *5 липня 2016 р. 21:00
> *To: *Taras Shchehelskyi <shchegelskij at gmail.com>
>
> *Subject: *Re: [vtk-developers] Rendering hangs in viewport
>
>
>
> Taras why aren't you building 64-bit? That's the easiest solution...
>
>
>
> On Tue, Jul 5, 2016 at 1:53 PM, Will Schroeder <will.schroeder at kitware.com>
> wrote:
>
> Okay Taras, I talked to someone smarter than me and it may be that some
> versions of Windows support vtkAtomicInt64 ..... and at one point there
> were some versions that did not, I'm not sure what the current status is.
> So for a simple fix I would try using vtkAtomicInt64 on your machine and
> recompiling. If that doesn't work we'll have to scratch our heads a little
> more.
>
>
>
>
>
> On Tue, Jul 5, 2016 at 12:31 PM, Taras Shchehelskyi <
> shchegelskij at gmail.com> wrote:
>
> Hello,
>
>
>
> Just checked. Our app does enough vtkTimeStamp::Modified() calls to
> wrapping 32 bit unsigned long in about 15-20h (depending on how many
> other processes I have on my PC). When enable more features – less time
> necessary.
>
>
>
> I am new to VTK. Can you please give me advice how hard (how many changes
> necessary) to move this->ModifiedTime  to int64 type in windows?
>
>
>
> If move to int64 type, from my rough estimate app should work fine for
> 400000+ years. And this more than enough for any use case 😊
>
>
>
> Thanks,
>
> Taras
>
>
>
> *From: *Sean McBride <sean at rogue-research.com>
> *Sent: *5 липня 2016 р. 18:02
> *To: *Will Schroeder <will.schroeder at kitware.com>; Mathieu Malaterre
> <mathieu.malaterre at gmail.com>
> *Cc: *vtk-developers at vtk.org
> *Subject: *Re: [vtk-developers] Rendering hangs in viewport
>
>
>
> On Tue, 5 Jul 2016 08:16:46 -0400, Will Schroeder said:
>
>
>
> >I like this theory! It's hard to imagine an unsigned long wrapping around,
>
>
>
> Not on Windows, where unsigned long is only 32 bits. :(
>
>
>
> Cheers,
>
>
>
> --
>
> ____________________________________________________________
>
> Sean McBride, B. Eng                 sean at rogue-research.com
>
> Rogue Research                        www.rogue-research.com
>
> Mac Software Developer              Montréal, Québec, Canada
>
>
>
>
>
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> --
>
> William J. Schroeder, PhD
> Kitware, Inc. - Building the World's Technical Computing Software
> 28 Corporate Drive
> Clifton Park, NY 12065
> will.schroeder at kitware.com
> http://www.kitware.com
> (518) 881-4902
>
>
>
>
>
> --
>
> William J. Schroeder, PhD
> Kitware, Inc. - Building the World's Technical Computing Software
> 28 Corporate Drive
> Clifton Park, NY 12065
> will.schroeder at kitware.com
> http://www.kitware.com
> (518) 881-4902
>
>
>



-- 
William J. Schroeder, PhD
Kitware, Inc. - Building the World's Technical Computing Software
28 Corporate Drive
Clifton Park, NY 12065
will.schroeder at kitware.com
http://www.kitware.com
(518) 881-4902
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