[plt-scheme] Re: gl-config% - Double buffering

Okay thanks you all !

I'm gonna make some versions with your links :
> double-buffering with MrEd drawing contexts
> Allegro package (the home page is down !)

and found what is the best for my game ^^

When it will be finished, I will post it here !

Jonathan

On 19 mar, 23:39, Jon Rafkind <work... at ccs.neu.edu> wrote:
> If you are just writing a 2d game and want something better than mred
> but easier than opengl you can try my Allegro package in planet. It
> works pretty well in Windows and Linux, and somewhat in OSX. It can do
> 3d too, but not as well as opengl.
>
> http://planet.plt-scheme.org/#allegro.plt
>
>
>
> tfn... at gmail.com wrote:
> > In fact, I succes a little :
> > I removed (swap-gl-buffers) on (on-paint) and it's seems to work !
> > (You can try on trying-gl2)
>
> > The background is perfect, however the enemy ships are
> > "flickering" (sorry for this traduction ^^), but i'm still working on
> > it ;)
>
> > On 19 mar, 19:15, Richard Cleis <rcl... at mac.com> wrote:
>
> >> It's probably better to choose something simple to do with MrEd,
> >> first.  In the meantime, you can read about graphical concepts like
> >> models and views.  Then, you can try OpenGL in Scheme.  Unfortunately
> >> many OpenGL tutorials use C, which is unnecessarily cumbersome and
> >> very distracting (that's how I learned some in the last millenia.)
> >> DrScheme allows experimenting with OpenGL much more interactively.
>
> >> rac
>
> >> PLT-Scheme is a much better way to learn
>
> >> On Mar 19, 2007, at 3:41 AM, tfn... at gmail.com wrote:
>
> >>> Ok ! I understand what you both say.
> >>> Because my project is a game, I was thinking use OpenGL will be a good
> >>> solution but it's maybe a little too soon for me ^^
>
> >>> I will try a little more, and if I can't do it, I would make a
> >>> traditional animated canvas...
>
> >>> Thanks a lot !
>
> >>> On 19 mar, 02:05, Matthew Flatt <mfl... at cs.utah.edu> wrote:
>
> >>>> At Sat, 17 Mar 2007 12:49:36 -0000, "tfn... at gmail.com" wrote:
>
> >>>>> With your help and the \PLT-369.8\collects\games\jewel\jewel.scm
> >>>>> source, i made a new version but this time, the canvas is
> >>>>> scrambled :
> >>>>>http://dl.free.fr/p2n3d2La/GLtest.png
>
> >>>> Your code doesn't use GL for drawing. It draws directly to a MrEd
> >>>> drawing context, instead. So when you swap the GL buffer in, it just
> >>>> has garbage, since nothing has been drawn using GL.
>
> >>>> If you just remove the call `(swap-gl-buffers)', then you'll see your
> >>>> drawing.
>
> >>>> For information on double-buffering with MrEd drawing contexts, see
>
> >>>>  http://list.cs.brown.edu/pipermail/plt-scheme/2007-March/016690.html
>
> >>>> Matthew
>
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