Shouldn't then the method, which scales the viewport, take care of casting? Because based on OpenGL Specification viewport is per definition an integer value.
--- Robert Osfield <[EMAIL PROTECTED]> schrieb am So, 30.11.2008: > Von: Robert Osfield <[EMAIL PROTECTED]> > Betreff: Re: [osg-users] osg::Viewport doubles??? > An: "OpenSceneGraph Users" <[email protected]> > Datum: Sonntag, 30. November 2008, 16:51 > Hi Art, > > osg::Viewport now has doubles to enable scaling of a the > viewport > relative to a window that has vary size. > > The performance involved in casting should be negligible > given that > you'll only be doing a once or twice a frame. > > Robert. > > On Sun, Nov 30, 2008 at 3:46 PM, Art Tevs > <[EMAIL PROTECTED]> wrote: > > Hi folks. > > > > Can somebody explain me what is actually the reason > having double as type for the osg::Viewport variables (x, y, > width and height)? > > We have now always to cast (static_cast) in the > Viewport::apply method and if I need that values too, I > have also to cast. I think this is an avoidable performance > leak, isn't it? > > > > Cheers, > > art > > > > > > > > > > > > _______________________________________________ > > osg-users mailing list > > [email protected] > > > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org _______________________________________________ osg-users mailing list [email protected] http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
