> > 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? >
I'm afraid I didn't understand this explanation very well myself. My first question would be, do the HUD elements (the 2d pics) stay stuck to the screen space (as if they were part of a game scoreboard overlaid onto the screen) or do the move around the screen as the main view camera rotates, tilts, moves, etc like an Augment Reality environment? -- Chris 'Xenon' Hanson, omo sanza lettere. xe...@alphapixel.com http://www.alphapixel.com/ Training • Consulting • Contracting 3D • Scene Graphs (Open Scene Graph/OSG) • OpenGL 2 • OpenGL 3 • OpenGL 4 • GLSL • OpenGL ES 1 • OpenGL ES 2 • OpenCL Legal/IP • Forensics • Imaging • UAVs • GIS • GPS • osgEarth • Terrain • Telemetry • Cryptography • LIDAR • Embedded • Mobile • iPhone/iPad/iOS • Android @alphapixel <https://twitter.com/alphapixel> facebook.com/alphapixel (775) 623-PIXL [7495]
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