Re: The speed of the application is slow when we have little heavy graphics on the drawing area.. Please help

[Dave Malcolm <david davemalcolm demon co uk>]

On Thursday 05 September 2002 10:51, rahul karurkar wrote:

I don't know if this will help, but you might want to have a look at the 
GTKGLArea widget (in the Gnome CVS, I believe), designed as an easy way to 
embed an OpenGL render into GTK.

I haven't used it in a while though.

Other things you might want to investigate are the usual GL things: look at 
what bit-depth you've requested, what you're getting, what kind of buffering 
scheme is happening (single, double, triple) etc, and exactly where this 
buffering is happening.  I believe tht GtkDrawingAreas have their own 
buffering scheme, so I suspect what might be happening is that you've got 
multiple double-buffering schemes blitting to each other in a slow and nasty 
mess.  Possibly involving sending bitmaps to and from the X server as well, 
for good measure.  But I could be completely wrong.

Good luck
Dave

> > Hi all
>
>     I have been working on this problem since long but could not get the
> result. I am using GTK1.2 and Cosmo3D(a opengl library). I have mapped
> Cosmo3D window onto Gtk drawing area. The speed I get with the application
> seems slow. When I render the surfaces with graphics the application goes
> slow and even menu click pops up menu after many seconds......which is
> really inefficient. Can anybody tell me how to maximise the speed of the
> application with regard to the graphics rendering on gtk drawing area
> rendering.
>
>     I feel I must have missed something in mapping or There can be
> something which increases the speed of graphics rendering. The plateform I
> am working on is IRIX (SGI). So I expected to have much more speedier but
> It becomes slow unexpectedly when graphics come on the drawing area.
>
> Thanks in advance.
>
> Regards
> Rahul
>
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