Try taking a look at the shapes.c example that comes with the gtkglext package. There are different ways do to them and it sort of depends upon how you plan on setting up the scene/object to view how how you plan to view it.
For example, if you are viewing an object and want to simulate a zoom in or out, one easy way is to simply have an overall scale factor that you increase or decrease and use a glScalef with the scale factor. Or another way, is to keep the scale unchanged but adjust the projection mapping as in glOrtho(). To zoom in, you decrease the size of the x and y bounds of the viewing volume according to your scale factor. On Wed, 2006-02-22 at 19:28 +0100, Philippe CHAUVAT wrote: > A little bit out of the list themas... but I wrote some program with > gtkglext and would like to do some Zoom, Pan, Rotate things with mouse > and/or keyboard. > > Does anyone know where to find some sample or tutorial about this ? > > Thanks in advance. > Philippe > _______________________________________________ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list _______________________________________________ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
