I'm starting to convert several apps from OSG 1.X to the current release. I've read the posts regarding Viewer and CompositeViewer and want to make sure I'm understanding it right. If you don't mind a few beginner questions... 1) Viewer (which "is a" View) can have one or more Cameras, but if using multiple Cameras, they are positionally slaved to the single View Camera by offset matrices, right? 2) The slaved Cameras can share the subgraph (Scene) below the View Camera, but if desired, they could have their own subgraphs? 3) It seems that generally, since the slaves are offset from the View master camera, for most applications, they would share the same Scene, right? 4) CompositeViewer (which "contains" Views) can be more flexible since each View Camera can be independently positioned (i.e., different views of the same Scene, but where Camera 2 doesn't necessarily follow Camera 1). 5) The View(s) within a CompositeViewer could themselves be single-Camera or master-slave configurations. 6) It seems that a CompositeViewer with a few Views could be functionally equivalent to a "Viewer with slave Cameras" provided the user positions the CompositeViewer Views with respect to a designated "master" View in real-time? 7) I see some efficiencies, such as a master-slave View applying the Update traversal only once to the shared Scene. Are there any other significant benefits (e.g., cull, rendering, state) that make a Viewer master-slave setup more efficient than the equivalent manually-slaved Views in a CompositeViewer? Sorry for the length, but I hope this post might be useful to others just starting the 1.X to 2.X conversion. Thanks! Dan Guinther
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