Re: [Stellarium-pubdevel] Doubt regarding the implementation of paintPartial in the StelAppGraphicsWidget

[Reaves, T. <tr...@si...>]

On my MacBook Pro - now seven years old - consolidating that code made the
FPS go from ~55 to ~160.  That's a big difference!



On Wed, Apr 4, 2012 at 6:31 PM, Fabien Chéreau <
fab...@go...> wrote:

> On Wed, Apr 4, 2012 at 17:11, Chiraag Juvekar <chi...@gm...>
> wrote:
> > Hey,
> >
> > I was reading the implementation of the StelAppGraphicsWidget but I cant
> > follow the paintPartial function.
> > I understand that in one cycle it sets the data in the modules and in the
> > next it paints them.
> > I wanted to know why is it implemented in this manner. WHy no do both
> > together one after the other?
> >
> > I had a similar doubt with the drawPartial implementation in stelApp
>
> This something Guillaume did to allow for fluid GUI even when the CPU
> is not very fast. The problem was that when it took more than 1 frame
> to compute and render the sky, the animation was kind of blocked and
> it was annoying for keeping a fluid GUI. With this trick you can spit
> the computation of the sky over several frames (and in the mean time
> the program re-display always the same view stored in a buffer).
>
> Fab
>
>
> > --
> > Chiraag
> >
> > You can't have everything in life,
> > In particular, the list of all lists that do not contain themselves.
> >
> >
> >
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>
>
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