Re: fltk and GL (WAS: Unix/Win GUI re-evaluation)

[Andrae Muys <a.muys@mailbox.uq.edu.au>]

On Thu, 10 Jun 1999, Stan Shebs wrote:

> Now this is interesting - doesn't OpenGL for Unix still go through X11
> to get bits on the screen?  All the X11 ports of Xconq are pretty
> careful about not sending any drawing packets they don't have to;
> otherwise you'd see some really slow redraws!  If there's an OpenGL
> internals/performance doc that's just one step up from reading the
> sources, I'd like to get a look at it...

Now while I don't know how GLX works (remote displayed GL on X11), if you
are using locally hosted OpenGL, my understanding was that it just
obtained a window and a mask from the X server and rendered directly to
the hardware (or at least the frame buffer for software rendered).  Please
correct me if I'm wrong, but this was always how I understood it to work.

Andrae

--
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Andrae Muys              "Never ascribe to malice that which is adequately
andrae@humbug.org.au      explained by incompetence." - Napoleon Bonaparte