Hi Guy, the behaviour of multisampling is quite well defined - the more samples you request, the more accurate the render will be. Yes, objects smaller than a pixel may not be rendered. Why is that a problem for you?
The behaviour of smooth rendering is not well defined. It's a hint to the OpenGL implementation, nothing more. To find out how it behaves on a particular graphics card you'll have to experiment. On 9 March 2010 14:32, Guy <[email protected]> wrote: > Hi all, > > Thanks again for your answers, I've read about Multi-sampling, SMOOTH > rendering and centroid variables. It all helped a lot. > > > > I've few questions regarding these issues that were not clear: > > With multisampling: > > - if none of the samples falls within the intersection of the > object and the pixel, than nothing will be rendered? Does it mean that tiny > objects will disappear? > > - multi-sampling can never be accurate, right? I mean almost > never can set the object alpha to the object pixel coverage percentange? > > With SMOOTH rendering: > > - is it more accurate than multisampling? Is it possible that > OpenGL implementation will not calculate the pixel coverage correctly? > > - Does it works slower or faster than multisampling? > > - Will it work even for tiny objects? > > > > > > Thanks, > > Guy. > > > > _______________________________________________ > osg-users mailing list > [email protected] > http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org > >
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