Hi J-S,

>> * Remove dependency on QT (osgviewer::viewer only)
>
> There's a dependency on QT? Why?

For now particular reason, except that the main (a.k.a the real life) application which needs this technique uses Qt for its GUI implementation. Hence, when making the example for testing, I wanted to make sure that the Qt library didn't drop any bombs (and it threw me at least a hand-grenade - see comments in source for AdapterWidget::updateGL() ;)

> Or make it configurable (Frame Buffer, FBO, pbuffer). IIRC, if you
> don't want to open a window (i.e. you want your app to be command-line > only) you need to use a pbuffer, so that would be a nice option.

Yepp, I agree: making it configurable, but defaulting to pbuffer (i.e. no-windows popping up) would be a good solution.

But for now, speed improvements is my main concern (Thanks to Daniel and Robert for their suggestions. I'll try to test them out as soon as I get the time)

Best regards,
John

Jean-Sébastien Guay wrote:
Hi John,

I've been following your progress on osg-users with lots of interest. It's a nice example. I can see for example a game project running the game executable each night after a nightly build, automatically taking a screenshot in the same camera position each night, to be able to see how the look of the game progresses over time.

* Remove dependency on QT (osgviewer::viewer only)

There's a dependency on QT? Why?

* Use frame buffer object for rendering (offscreen rendering)

Or make it configurable (Frame Buffer, FBO, pbuffer). IIRC, if you don't want to open a window (i.e. you want your app to be command-line only) you need to use a pbuffer, so that would be a nice option.

Good work.

J-S


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Best regards,
John
WeatherOne


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