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== Use Cases == | == Use Cases == | ||
[[File:AFS-Panel-11-2020.png|thumb|MD11 Autopilot dialog implemented in Canvas to replace the existing PUI dialog.<ref>https://forum.flightgear.org/viewtopic.php?f=4&t=32822&p=377189#p377189</ref>]] | |||
* Tail Cams (gear view) | * Tail Cams (gear view) | ||
* Mirrors | * Mirrors | ||
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* Prototyping/testing HUDs or PFDs requiring synthetic terrain to work properly | * Prototyping/testing HUDs or PFDs requiring synthetic terrain to work properly | ||
* rendering an orthographic view to implement [[Canvas_Tile_Element|moving maps]] that render actual FlightGear terrain/DEM | * rendering an orthographic view to implement [[Canvas_Tile_Element|moving maps]] that render actual FlightGear terrain/DEM | ||
* automated creation/rendering of cockpit GUI dialogs by rendering a perspective-corrected front-view of cockpit elements (MCP, AP, CDU etc) <ref>https://forum.flightgear.org/viewtopic.php?f=4&t=32822&p=377189&#p377189</ref> | |||
== Proof of Concept == | == Proof of Concept == | ||
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=== Create a Canvas Element subclass === | === Create a Canvas Element subclass === | ||
[[File:CanvasView-Prototyping-UI.png|thumb|[[Canvas]] GUI dialog (code at [http://wiki.flightgear.org/File_talk:CanvasView-Prototyping-UI.png]) to provide a UI <ref>https://sourceforge.net/p/flightgear/mailman/message/37163870/</ref> for the experimental [[Canvas View Camera Element]] prototyped during the [[Virtual FSweekend Hackathon 2020]], for more details see: [[Hackathon Proposal: CompositeViewer and Canvas]]]] | [[File:CanvasView-Prototyping-UI.png|thumb|[[Canvas]] GUI dialog (code at [http://wiki.flightgear.org/File_talk:CanvasView-Prototyping-UI.png]) to provide a UI <ref>https://sourceforge.net/p/flightgear/mailman/message/37163870/</ref> for the experimental [[Canvas View Camera Element]] prototyped during the [[Virtual FSweekend Hackathon 2020]], for more details see: [[Hackathon Proposal: CompositeViewer and Canvas]]]] | ||
[[File:CompositeViewer-prototype-UI.png|thumb|[[Canvas]] based GUI dialog to create [[CompositeViewer Support|CompositeViewer views]] dynamically using a configurable [[Compositor]] pipeline.]] | |||
{{Progressbar|30}} | {{Progressbar|30}} | ||
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* texture size/resolution (see Fernando's comments here: [[Talk:Hackathon_Proposal:_CompositeViewer_and_Canvas#SceneGraph_Cameras_vs._Prerender_Cams]] ) | * texture size/resolution (see Fernando's comments here: [[Talk:Hackathon_Proposal:_CompositeViewer_and_Canvas#SceneGraph_Cameras_vs._Prerender_Cams]] ) | ||
* OSG rendering mode (continuous vs. lazy/on demand): <code>setRunFrameScheme( osgViewer::ViewerBase::ON_DEMAND );</code> <ref>https://forum.flightgear.org/viewtopic.php?f=71&t=17650&hilit=knuq+taxiways&start=15#p166990</ref> <ref>https://stackoverflow.com/a/12259344</ref> | * OSG rendering mode (continuous vs. lazy/on demand): <code>setRunFrameScheme( osgViewer::ViewerBase::ON_DEMAND );</code> <ref>https://forum.flightgear.org/viewtopic.php?f=71&t=17650&hilit=knuq+taxiways&start=15#p166990</ref> <ref>https://stackoverflow.com/a/12259344</ref> | ||
* framerate cap via something like <code>view.setRunMaxFrameRate()</code> [https://www.programmersought.com/article/23264806182/] [https://www.mail-archive.com/osg-users@openscenegraph.net/msg14033.html] (background: https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg26178.html ) | * framerate cap via something like <code>view.setRunMaxFrameRate()</code> <ref>https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg26193.html</ref> [https://www.programmersought.com/article/23264806182/] [https://www.mail-archive.com/osg-users@openscenegraph.net/msg14033.html] (background: https://www.mail-archive.com/osg-users@lists.openscenegraph.org/msg26178.html ) | ||
* [[Draw masks|node masks]] | * [[Draw masks|node masks]] | ||
* [[Level Of Detail (LOD) Ranges|LOD]] ranges etc. <ref>https://forum.flightgear.org/viewtopic.php?f=71&t=32845&p=318027&hilit=canvas+draw+masks#p318028</ref> | * [[Level Of Detail (LOD) Ranges|LOD]] ranges etc. <ref>https://forum.flightgear.org/viewtopic.php?f=71&t=32845&p=318027&hilit=canvas+draw+masks#p318028</ref> |