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Re: [Discuss-gnuradio] opengl "persistence" error

From: Alexandru Csete
Subject: Re: [Discuss-gnuradio] opengl "persistence" error
Date: Sat, 2 Apr 2011 13:39:21 +0200

On Sat, Apr 2, 2011 at 5:53 AM, Marcus D. Leech <address@hidden> wrote:
> On 04/01/2011 12:29 PM, Arturo Rinaldi wrote:
>>> It happens on all of my computers too. I think the persistence uses a
>>> hardware feature that is not widely implemented. -Josh
> <rant>
> Reinforces my notion that OpenGL is broken in so many fundamental ways.
> You can't reliably predict what an OpenGL app is going to do on any random
> hardware.  The implementations seem to
>  routinely break the traditions of abstraction.  It's downright infuriating.
>  Simple 2D graphics such as is used in Gnu Radio
>  should "just work", regardless of the hardware.  I mean, if the freaking
> login window can render, then Gnu Radio apps
>  should be able to.
> </rant>

I believe the accumulator buffer has been deprecated in OpenGL 3
(don't know exactly when it was removed), and I can imagine that newer
cards no longer support it.


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