Re: Redirect GL to off-screen or pixmap

[Amir B. <uf...@rz...>]

On Mon, 2004-09-20 at 18:47, Ian Romanick wrote:
> Amir Bukhari wrote:
> 
> > that is correct if the client use DRI, but what if the applications use
> > GLX extension like "glxgeer". I think getting GLX is simpler than
> > getting DRI. for examlpe by catcing attaching GL to window and let GLX
> > assume this just a pixmap not a window, thus it will render it to a
> > pixmap.
> 
> I just want to clarify things.  Do you want to write a new application 
> that renders to off-screen or do you want to redirect the output of an 
> arbitrary existing appliation to off-screen?  If you want to write a new 
> application that renders to off-screen, Keith is right.  You want to use 
> pbuffers.

Nope. I don't want to write a new application which rendered to
offscreen.
All GL application are rendered inside a window (x window), I want to
redirect this window, which is associated to GL to offscreen. I need
this because I work on 3D Desktop, which use XComposite extension to
redirect requested windows to offscreen. so I can manage then in 3D
Desktop. GL Applications can't currently be redirect to offscreen by
XComposite, because DRI write directly to screen, it didn't use X Server
BitBlit operations, which access the framebuffer of the video card.

-- 
Amir Bukhari <uf...@rz...>