Re: viAPI
Alejandro Saez (cano++at++krusty.engr.sgi.com)
Tue, 21 Oct 1997 22:46:53 -0500
On Jul 27, 4:30pm, Angus Dorbie wrote:
> Subject: Re: viAPI
>
> [ plain text
> Encoded with "quoted-printable" ] :
Alejandro Saez wrote:
> >
> > On Jul 27, 10:44am, Jeff Minor wrote:
> > > Subject: Re: viAPI
> > > I talked to Robert Grzeszczuk of SGI at SIGGRAPH. He said that OpenGL
> > > Volumizer should theoretically work with Performer but it has not yet
> > > been tried as far as he knows. I guess we'll be the guinea pigs. Please
> > > let me know if you have any luck and I'll do likewise.
> > >
> > > Jeff
> > >
> > > Angus Dorbie wrote:
> > > >
> > > > Ballard Andrews; (4/28/98) wrote:
> > > > >> > > Is there a Performer wrapper for the
> > > > > new volume API?
> > > > >
> > > >
> >
> > from SGI's press release on vAPI:
> > "OpenGL Volumizer is a high-level immediate mode tool kit which
> > applications can directly access, or can leverage through their own
internal
> > scene graph or scene graph APIs such as Silicon Graphics® OpenInventorTM,
> > OpenGL OptimizerTM, IRIS PerformerTM, and the future "Fahrenheit" project
> > scene graph"
> >
> > So what's the deal, sales talking a bit too much again?????
> >
>
> No, if you look at the original quastion it asked if there was
> a wrapper. There isn't, and the question was answered with a 'no'.
> That won't preclude you from calling the API just like you are
> free to call OpenGL today, but a wrapper there is not, and won't
> be.
>
> Volumizer is a very different and well designed way of
> abstracting your volume dataset which closely matches
> the OpenGL paradigm of rendering polygons with their
> associated state information. With volumizer you render
> volumes with associated state including 3D data images. The
> lower level business of rendering slices or whatever other
> hardware mechanism the machine supports is hidden. Once you
> understand this you will realize that there is no conflict
> in the claims being made.
>
> Cheers,Angus.
I'm not so sure about the point being that clear, let me write the press
release again and take off the "your own scene graph" , then it reads:
"...which applications can directly access or can leverage through IRIS
PerformerTM". Of course the meaning of "leverage through" is somewhat open to
personal interpretation but it sounded to me like it was talking about an easy
way to get to it through Performer (a wrapper). I receive your e-mail as
clarification on the meaning on "leverage through", thanx.
--
------------------------------------------------------------------------
Alejandro Saez
Software Engineer
Silicon Chile S.A.
Avda. Santa Maria 2560
E-mail: asaez++at++silicon.cl Providencia
Phone: +56 (2) 203 3371 Ext. 107 Santiago
Fax: +56 (2) 203 3370 Chile
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on Mon Aug 10 1998 - 17:57:44 PDT