[osg-users] Multisample problem
papadako at csd.uoc.gr
Sat Oct 13 17:15:33 PDT 2007
By the way, http://www.cs.ualberta.ca/~ghali/courses/texts/redbook/code/06-06-multisamp.c
works just fine on my system.
On Sun, 14 Oct 2007, Panagiotis Papadakos wrote:
> Hi David
> On Tue, 9 Oct 2007, David Callu wrote:
>> Hi Panagiotis
>> 2007/10/6, Panagiotis Papadakos <papadako at csd.uoc.gr>:
>>> I want to add an option of using multisampling for my app. So I have setup
>>> DisplaySettings with setNumMultiSamples(4). The user is able to
>>> enable/disable multisampling as he feels in the app, by enabling/disabling
>>> the GL_MULTISAMPLE_ARB in the root stateset. My problem now is that
>>> initially I want to have multisampling disabled, which I can't figure out
>>> how to do. I have tried setting GL_MULTISAMPLE_ARB OFF in the root
>>> stateset, but this doesn't seem to help. Any ideas?
>> This seem to be the good method.
>> you can try
>> 1) do root->getOrCreateStateSet()->setMode(GLL_MULTISAMPLE_ARB,
>> osg::StateAttribut::OFF | osg::StateAttribut::OVERRIDE)
> This is what I've been trying. More specifically
> osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED |
> after the viewer has been realized.
>> 2) I think that number of sample is define when the OpenGL context is
>> so recreate a context on each switch of the number os sample you want.
> Why should I recreate a context? I think I should be able to
> enable/disable Multisampling with setting the state mode ON/OFF.
>> How did you know that multisample is enabling/disabling.
>> Did you look the render ?
> Yep, that is the case. I saw the render.
>> Did you do a request to OpenGL about multisample ?
>>> Panagiotis Papadakos
>>> osg-users mailing list
>>> osg-users at lists.openscenegraph.org
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