Catherine E. Blanco (cblanco++at++world.northgrum.com)
Fri, 12 Dec 1997 16:26:08 -0800 (PST)
Awhile ago, I started work on porting a GVS application to Performer.
The original application used the old GVS API, not OpenGVS, and I don't
know how much the API has changed.
Though GVS offers much the same functionality as Performer, the two
APIs are different enough that porting from GVS to Performer is not
a trivial task. There are some functions offered directly in GVS but
not in Performer, and vice versa. I would think if you start with
GVS (due to platform requirements, or whatever) it would certainly be
easier to just stay with it.
If only Performer were available on the PC...<sigh>
-- Cathy
==========================================================================
Cathy Blanco cblanco++at++world.northgrum.com
Northrop Grumman Advanced Systems & Technology (562) 942-3961
On Thu, 11 Dec 1997, Maria Diaz Soloaga wrote:
> Hi all!
>
> I have a doubt in relation with Performer and OpenGVS. I know this is
> not only a Performer question because I´m over all interesting in the
> way OpenGVS works in a SGI machine. I have a potentially customer that
> wants to develop his simulator starting with a PC platform and after
> porting to a Silicon Graphics machine. He wonders if maintain the
> application in OpenGVS or porting to Performer.
>
> In the most external aspect, It looks that OpenGVS works similarly as
> Performer (the way they configure the scene, create a light source or
> implement a fog model) but I really don´t know if they process every
> frame also in a similar way as Performer, at least in the hardware
> level, so you can easily port from OpenGVS to Performer.
>
> Have any of you experience in porting one to another? How many effort
> could this cost? Do you have any notice of a converter form OpenGVS to
> Performer?
>
> A friend in SGI has recomend me to write it directly in OpenGL, do any
> of you think that this will suppose less effort than do it in OpenGVS
> and port it to Performer (or run it directly in OpenGVS, as I´m not sure
> on how is this going to go)?
>
> I will appreciate any help. Thanks in advance,
>
>
> **************************
> * *
> * Maria Diaz Soloaga *
> * Visual Simulation *
> * ASKIN SA *
> * Madrid, (Spain) *
> * *
> **************************
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