Re: [Update REQ 5225]: Registering my use of Geomview

[hayes at wookie]

On Feb 3,  5:21pm, Daeron Meyer wrote:
> Subject: Re: [Update REQ 5225]: Registering my use of Geomview
> From: daeron
> Message-Id: <199502032321.AA22686 at bers.geom.umn.edu>
> Subject: Re: [ REQ 5225]: Registering my use of Geomview
> To: software@geom
> Date: Fri, 3 Feb 95 17:21:00 CST
>
> > Date: Thu, 2 Feb 95 16:12:11 -0600
> > From: mbp
> > Message-Id: <9502022212.AA09165 at artin.geom.umn.edu>
> > To: software
> > Subject: [hayes: Registering my use of Geomview]
> >
> > Date: Thu, 2 Feb 1995 13:18:59 -0600
> > From: Paul Hayes <hayes>
> > To: hayes, register at geom
> > Subject: Registering my use of Geomview
> >
> >
> > I am attempting to use this for visualization....
> >
> > Geomview seems to be surface oriented.  Do you have plans to
> > make it volume oriented as well, using perhaps surfaces to
> > temporarily represent the volume?
> >
> > The mesh and bezier examples yield Segmentation Faults and core dumps
> > on my DEC Alpha 3000/600, cc, OSF1/2.0.  Where do we begin to track
> > this problem?
> >
> > Paul Robert Hayes
> > hayes.paul at mayo.edu
> >
> > Originator: hayes.paul at mayo.edu
> >
> >
> > [5225     open   nobody   02/05/95 hayes.paul at mayo.edu
<hayes.paul at mayo.edu>]
> >
>
> We don't currently have plans to make Geomview handle volume visualizations
> since there are several other programs that already do this and we don't
> have the resources to work on such a project at this time.
>
> As for the bugs you found, we've been looking into them. It seems that
> when the rendering library that Geomview uses is compiled with optimization,
> it crashes out on mesh's and bezier objects (which also reduce to meshes).
> However, when we compiled the rendering libraries without optimization
> it seemed to work okay. This could possibly be a bug in the compiler,
> though we're not completely sure. If you'd like to try out the fixed
> version just grab gvx.alpha in /priv/daeron/bin/ on ftp.geom.umn.edu.
> It should be used as a drop in replacement for your gvx binary. If you
> do try it, tell us if it works.
>

Perfect!  The non optimized version loads mesh and bezier surfaces and rotates
them.  I have had difficulties with the Alpha cxx optimized as well.  I do
believe it is a bug in the compiler.


> Thanks,
>
> Daeron Meyer
> daeron at geom.umn.edu
>
> state: closed
>
>
> [5225     closed   nobody   02/05/95 hayes.paul at mayo.edu
<hayes.paul at mayo.edu>]
> [43 lines of previous history; see software -v 5225.]
>-- End of excerpt from Daeron Meyer



-- 
Paul Hayes
Special Purpose Processor Development Group         Phone:((555) 555-5555
Mayo Foundation                                       Fax:((555) 555-5555
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