[vtkusers] Moving an actor, after about 1.5 hours.

[Ken Martin]

Oops, yes, I meant runnable time not run time :-)



On Mon, Mar 7, 2016 at 9:25 AM, Richard Frank <rickfrank at me.com> wrote:

> Oh never mind - increase the runnable time not run time :>}
>
> Sent from my iPad
>
> On Mar 7, 2016, at 9:07 AM, David Gobbi <david.gobbi at gmail.com> wrote:
>
> On Mon, Mar 7, 2016 at 6:43 AM, Richard Frank <rickfrank at me.com> wrote:
>
>>
>> Not yet. That will be next step. Seems plausible since I can't  find
>> after quite a bit of testing any leaks, OpenGL errors reported, and testing
>> on different systems with different Nvidia cards. etc, and tracing into VTK
>> ( although trying to trace through all the calls to executive, algorithm,
>> superclass, etc is quite cumbersome). Things just fail to move, silently.
>>
>
> As far as I'm aware, the only reason that VTK hasn't yet switched to a
> 64-bit MTime everywhere is that there would be backwards compatibility
> problems (GetMTime is a virtual method that is overridden in many
> subclasses).
>
> I found another post where someone had a slightly similar problem and said
>> removing and re-adding actors fixed the problem, which we also seem to
>> see.....
>>
>
> The VTK pipeline uses the difference between timestamps to as an indicator
> for when to undertake certain actions.  So it is likely that problems only
> arise when this "difference" between two crucial timestamps exceeds the
> 32-bit limit.  That's why re-adding actors might fix the problem.
>
>
>> Also, why the runtime hit on a 64 bit build?.
>>
>
> What are you referring to? (I rarely use Windows, and when I do, I use
> 32-bit builds).
>
>  - David
>
>
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Ken Martin PhD
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