Bob Kuehne wrote:
> in fact, what paul says is very similar to what i often do in test apps:
>
> while ( !viewer.done() )
> {
> usleep( timeToSleepToGetMeToMyDesiredFrameRate );
> viewer.frame();
> }
>
> in a more commercial-style app, i'd recommend only redrawing when data
> actually
> changes. so in a cad app, when the user moves the mouse, or edits the
> data, in a
> flight sim, when the eyepoint, or any on-screen data changes, etc.
yes, I also think this is the good approach - only draw something if
something has changed.
but for the viewer, I'd need to know if there was any user input (like a
mouse operation for zooming in/out), that is handled by the viewer
itself. is there a way to catch this event? I imagine something like the
following:
while (!viewer.done()) {
blockUntilTheresChange();
viewer.frame();
}
is there something to this end in viewer?
Akos
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