Hi Dimitri,

On Thu, 03 Jan 2008 20:40:13 +0100, Dmitri Hrapof <[EMAIL PROTECTED]> wrote:
Happy New Year!
Same to you!

I thought that maybe my limited experience would be of interest...
I've been successfully using OpenGL with cells-gtk and clg for the last two years (using GtkGlExt and GtkDrawingArea) for real-time data visualization. GtkGlExt was recently abandoned but is mantained again now AFAIK.

Wow, that sounds good. I believed there must be someone out there who has done that before, but I could not persuade google to point me in the right direction. Thanks so much for sharing your experience.

I also use Cairo together with OpenGL in order to draw antialiased rotated Unicode text of different font sizes. Unfortunately, I do not call Cairo and OpenGL functions to draw on the same surface, instead I create a texture with Cairo and display it with OpenGL.

I have never tried this. What is the reason you cannot mix the two? Does it not work, or is it some issue with the bindings?

I have to confess I switched from cells-gtk to clg for the new version of my program as the latter let me use glade to build my UI (and, to tell the truth, I used only CFFI part of cells-gtk).

If you're only using the CFFI part, this is the sensible thing to do. AFAICT clg is far more complete than cells-gtk. I suppose the focus of cells-gtk is a different one.

Maybe one day we will build cells-gtk on the bindings of clg?

SBCL is the Lisp used for this project.
I made a small CFFI binding for GtkGlExt:
http://www.common-lisp.ru/gtkgl.asd
http://www.common-lisp.ru/gtk-gl-ext.lisp

Again, thanks for sharing this. This will save me from reinventing the wheel here. Would it be ok for you if I use your bindings to integrate a GLDrawingArea widget in cells-gtk?

Cheers,
Peter



Sincerely yours,
Dmitri



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