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CompositeViewer support: Difference between revisions
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This is primarily needed/useful when views may need acccess to scenery (tiles) that are no longer in the cache of the main aircraft, for instance a tower view of the destination airport, or payload-specific views (think missiles) that may be out of range, and thus need their own scenery DB pager. In other words, CompositeViewer (CV) support is needed whenever a view can no longer be easily defined/described as a "child view" of the main aircraft. | This is primarily needed/useful when views may need acccess to scenery (tiles) that are no longer in the cache of the main aircraft, for instance a tower view of the destination airport, or payload-specific views (think missiles) that may be out of range, and thus need their own scenery DB pager. In other words, CompositeViewer (CV) support is needed whenever a view can no longer be easily defined/described as a "child view" of the main aircraft. | ||
Previously, we were using the View(er) class which "is a" View, rather than "has a" View. The Viewer | |||
class is special case just for handling a single View and makes it | |||
easy as possible to just set up viewer with a single View of a single | |||
Scene. Slave Camera's can be used in conjunction with the View(er) in | |||
cases where the view is made up of separate windows or rendering | |||
effects that all contribute towards provided the view in intended. | |||
Think of a car simulator where you have a monitor for the windscreen, | |||
and a left and right monitor for the left and right door windows - | |||
you'd have three windows that are are controlled by a single master | |||
view direction, with each one just offset from this direction, each | |||
window maps to a GraphicsWindow. | |||
The CompositeViewer is a more complex and more flexible class that "has a" list of View(s). Each View can have it's own unique Scene or | |||
share a Scene. Each View can be composed of a single master Camera or from a set of slave Cameras as above. Multiple Views are useful when | |||
you have independent views of scene such as 3D view and a map view insert where the scene is the same but the camera that controls the | |||
view direction can be moved independantly. Alternatively you can independent Scenes in each View, or mix and match to your hearts | |||
content. <ref>https://groups.google.com/g/osg-users/c/YFYyWhr7oZo/m/7u_ZxpMkOgYJ</ref> | |||
=== Status updates === | === Status updates === | ||