[osg-users] Whether a viewer is required for every osg based application?

[Zheng Li]

Hi,

I study the "osgscreencapture" example,the example also create a viewer instance when "--pbuffer-only" is specified although there is no window is 
created,so whether a viewer instance is required for every osg based app? if my app only do offscreen rendering that no need for any screen display,then whether a viewer is required for my app?

Thank you!

Cheers,
Lizheng

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