Re: [vwnc] vwnc Digest, Vol 24, Issue 50

> > > Message: 4
> > > Date: Fri, 29 Jan 2010 09:45:15 -0800
> > > From: Michael Lucas-Smith <[hidden email]>
> > > Subject: Re: [vwnc] VWNC 7.7 OPENGL
> > > To: [hidden email]
> > > Message-ID: <[hidden email]>
> > > Content-Type: text/plain; charset="iso-8859-1"
> > >
> > > On 1/29/10 8:13 AM, Hamid Hadavi wrote:
> > > > Hello,
> > > > I am trying to load the OPENGL packages from the public repository
> > > > into a vwnc 7.7 running on 32 bit x86 linux. Unfortunately, the load
> > > > process goes into some infinite loop from which it never recovers.
> > Has
> > > > anyone had any prior experience with OPENGL packages? Is there a
> > > > particular way to load/install these packages?
> > >
> > > I've never had it go in to an infinite loop before - what about loading
> > > the parcels that come with 7.7 instead?
> > >
> > When I load the parcels that come with 7.7 I get a series of
> > undeclared variables (as listed below). When I try to run any of the
> > lessons in OPENGL-LESSONS package, I get error messages. I've tried in
> > two different linux installations getting the same errors.
> > I've pasted the stack and the errors produced below. Am I loading the
> > parcels wrong?
> First a disclaimer - the opengl code base is not officially supported
> and I'm essentially a 1.5 man team on it (I occasionally get
> contributions - thanks to you people, you know who you are!).
>
> The warnings while loading are okay, they resolve themselves later, it's
> a weird load order issue to do with shared variables, but it doesn't
> adversely affect anything.
>
> The error you're getting is a bug, the fix is to change
> initializeContext's use of "gl TRUE" to a straight 1. The gl variable is
> not expected to be set up in initializeContext. I've published the fix
> to public store - but if you're having trouble loading from there still,
> just patch your local copy.
>
> Let me know if you have any other crashes.
>
> A word of warning on Linux - most Linux installations come with OpenGL
> 1.x, which is not sufficient to run any of the code that comes in the
> OpenGL package. You need OpenGL 2.x at a minimum and newer versions are
> desirable. You can only get new OpenGL rendering on Linux if you have a
> good graphics card and a good driver for it - the free drivers that come
> with X11 are usually not good enough. This is just a public service
> announcement, make sure you check your set up with glxinfo.
>
> Cheers,
> Michael
> -------------- next part --------------