Hello Thomas, On Mon, May 20, 2013 at 4:25 PM, Thomas Lerman <osgfo...@tevs.eu> wrote: > Thank you Jan. I will have to check it out. I will take a look at the > tutorial you mentioned previously to see how to do that (I presume that is > where you would suggest looking). It would be great if it is 10-15 lines of > code, no additional dependencies other than VRPN, and creates nice & smooth > movements. Any other hints (I am rather limited on time, so anything is > appreciated)?
There is a simple (non-osg-specific) VRPN tuto here: http://www.vrgeeks.org/vrpn/tutorial---use-vrpn A callback to update a matrix on an osg::MatrixTrasform from the quaternion/vector that you get from VRPN is just a copy & paste from an example in OSG. Or, even simpler, you can do it from the VRPN callbacks directly, just retrieve the data you want and set it to the node's matrix. Just don't forget to run the mainloop() function during the update traversal of the scenegraph - that is when the above mentioned callbacks get actually called if there are new data from the VRPN server. That can be done either in an update callback on some node somewhere or if you don't mind a bit of a mess in your code, put it in the main loop, somehow like this: while (!viewer.done()) { tkr->mainloop(); viewer.frame(); } That's pretty much all there is to VRPN on the client side. The other classes (Button, Analog, Dial, etc.) work pretty much the same - open a remote, register a callback and then call the mainloop() on the remote. Regards, Jan _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
