[osg-users] Can i use MatrixTransform to transform a HUD node?

Chen Gao gaochen010 at sina.com
Fri Jan 4 05:47:01 PST 2019


Hi,guys

    Well,as the subject notes,The software in my dev job has to use a HUD to show 2d pics. Generally using a camera to create a new viewport to show the pic will be OK. 

    But the 'Entity' base class for the software system uses a MT (matrixtransform) to add the detailed entity node(such as basic geometry,text with a geode) and then add this MT node to the root by the datacontainer manager class. 

    If I create the hud entity class derived from the base class, ie, add the camera node to the MT node,does it work if I operate the move, scale commands to this hud entity by using MT,not the camera? If it doesn't work, how can I change the node structure to make the Hud entity responsive to the transform operations which is generated by MT.Or do I only have to use the camera node itself to do these transformation jobs?

Please do me a favor!Thank you,guys!
 :)

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http://forum.openscenegraph.org/viewtopic.php?p=75379#75379







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