Hmm, looks like my driver does not support pbuffers, so I will get an
nVidia as you recommended.
Thanks

On Tue, Feb 28, 2012 at 10:39 AM, DRC <dcomman...@users.sourceforge.net> wrote:
> On 2/28/12 3:14 AM, 图潘 wrote:
>> Another note on PBuffer (pixel buffer).
>>
>> As I have read the pbuffer is already deprecated and replaced by FBO
>> (frame buffer object)
>> http://en.wikipedia.org/wiki/Pixel_buffer
>>
>> I don't know about the differences about linux and freebsd opengl
>> implementations. On linux systems are you relying on pbuffer?
>>
>>> Is PBuffer really required to get virtualgl working?
>
>
> Yes, PBuffers are really required.
>
> Buy an nVidia card and download their proprietary drivers for FreeBSD.
> Those should work similarly to the drivers that most of us use on Linux.
>
> FBO's are a fundamentally different beast from Pbuffers.  They are
> implemented at the OpenGL level, not the GLX level, so they can't really
> substitute for an X window.  You still have to bind an FBO to some
> context, which was previously created with some drawable.  That drawable
> can't be a window in our case, so what's the other choice?  Well, a
> Pbuffer.  But if we're going to bind an FBO to a Pbuffer, why use FBO's
> at all?  Why not just use Pbuffers by themselves?  We could possibly
> bind an FBO to an unmapped window as well, but I'm not sure of the
> ramifications of that, given that a bunch of users are sharing the same
> display.  Maybe there are no ramifications, but it would require a lot
> of testing to be sure of that.
>
> At minimum, converting VirtualGL to use FBO's is a large effort and not
> something I'm prepared to tackle for free, and no one is likely to pay
> for it until/unless it becomes absolutely necessary.
>
> ------------------------------------------------------------------------------
> Keep Your Developer Skills Current with LearnDevNow!
> The most comprehensive online learning library for Microsoft developers
> is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3,
> Metro Style Apps, more. Free future releases when you subscribe now!
> http://p.sf.net/sfu/learndevnow-d2d
> _______________________________________________
> VirtualGL-Users mailing list
> VirtualGL-Users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/virtualgl-users

------------------------------------------------------------------------------
Keep Your Developer Skills Current with LearnDevNow!
The most comprehensive online learning library for Microsoft developers
is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3,
Metro Style Apps, more. Free future releases when you subscribe now!
http://p.sf.net/sfu/learndevnow-d2d
_______________________________________________
VirtualGL-Users mailing list
VirtualGL-Users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/virtualgl-users

Reply via email to