In this exemple, the camera properties is set using glups. First, lunch glups to visualize one snapshot :

glups ../data/treo4000.000.gad

Once the desired view is set (you can specify the distance between yes and the field of view, for stereo vision), save the parameters in a file that you can call "glparameters" using the menu :

Menu >> GL Parameters >> Save As

You can then quit glups. Now you have to convert the "glparameters" into a pNbody parameter file. This is achived by running the two following command, one for each eye.

../bin/gtrk2nbd glparameters --eye='right' -o glparameters_right.nbd ../bin/gtrk2nbd glparameters --eye='left' -o glparameters_left.nbd

you can run also

../bin/gtrk2nbd glparameters --eye='center' -o glparameters_left.nbd

in case you need only one eye. Now, it is time to setup the movie parameter file "filmparameter.py". The movie is composed of 2 horizontal sub-movies, one for each eye. The position of the observer corresponding to each eye, is now defind entirely by the two files glparameters_right.nbd and glparameters_left.nbd (param[1]['pfile'] = 'glparameters_right.nbd',param[2]['pfile'] = 'glparameters_left.nbd'). The other parameters may be chosen freely.

mkgmov -p filmparam.py movie02.gmv ../data/treo* gmov -s 50 movie02.gmv