Hi Zhuwan,

I don't user Windows so can't comment on the specifics of this platform,
for this I will have to defer to other Windows users.

The one thing I would add is that you --samples value is excessive, try
reducing it down.  Also with the driver try setting it so it allows the
application to set the anti-aliasing setting rather than override it, then
run osgviewer with the command line I suggested.

Robert.


On 10 September 2013 14:28, webmaster <[email protected]> wrote:

> hello robert,
>
>   Before snapped the picture and run "osgviewer cow.osg ", already set the
> NV driver to force antialias and replace all the programm setting,and now
> just tried following .bat file:
>   cd ./bin
>   osgviewer --window 600 15 800 800 cow.osg --samples 16
>   pause
>  this is according your suggestion,and the result is still no anti alias
> effects.
>  we running in windows 7 ultimate x64 version
>  so in these days we tried many different NV 3d cards and different
> version drivers,and the problem is still!
>  This problem confused us many days,so psot it to maillist!
>
>  Thanks
>
>  zhuwan
>
> 09,10,2013
>
> 在2013-9-10 21:14:31,"Robert Osfield" <[email protected]> 写道:
>
> -----原始邮件-----
> *发件人:* "Robert Osfield" <[email protected]>
> *发送时间:* 2013-9-10 21:14:31
> *收件人:* "OpenSceneGraph Users" <[email protected]>
> *主题:* Re: [osg-users] This is a new BUG which is introduced by OSG3.2?
>
>
>    Hi Zhuwan,
>
> I am not aware of any changes that would introduce a regression in
> anti-aliasing, perhaps rather than a bug you have confused the set up of
> aliasing.
>
> The OSG by default does not enable anti-aliasing, this applies to 3.2 the
> same with all previous OSG releases.  So running the osgviewer with cow.osg
> and without the OpenGL driver overrding to switch on anti-aliasing you
> should see no anti-aliasing in any OSG version.
>
> To enable antialising you have to set the Traits::samples and
> sampleBuffers values when setting up the GraphicsContext.  You can set the
> default via the OSG_MULTI_SAMPLES env var, or via the command line i.e.
>
>   osgviewer cow.osg --samples 4
>
> I have just tried this on my OSG svn/trunk + Linux/NVidia system and it
> works just fine.
>
> If there has been a difference in behaviour then it'll likely be down to
> the OpenGL driver playing games with auto-detecting the software that is
> running and choosing defaults.  This does happen, but I haven't heard this
> happening to osgviewer yet.
>
> Robert.
>
>
> On 10 September 2013 14:00, webmaster <[email protected]> wrote:
>
>> Hi all,
>>     I boughted two NV GTX760 4G DDR5 3D cards,and make them SLI
>> successfully,and also tested many other type 3d cards,seems in OSG 3.2's
>> viewer window can't do any antalis,the attached snap shot is the NV display
>> set,and the runtime snap of "osgviewer.exe cow.osg"!
>>    Even in single 3d card mode,and tried many NV 3d display card,still is
>> zigzaged,and the previouse version of osg which is before 3.2 can do anti
>> alias correctly!
>>    anyone know why?
>>    Thanks
>>
>>    zhuwan
>> 09,10,2013
>>
>>
>> _______________________________________________
>> osg-users mailing list
>> [email protected]
>> http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org
>>
>>
>
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>
>
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