From: Yair Kurzion (yair++at++polygon.engr.sgi.com)
Date: 09/11/2002 10:51:31
Hello There !
If all you want if wireframes, why not use pfGeoSets with PFGS_LINES or
PFGS_LINESTRIPS as a primitive-type (pfGeoSet::setPrimType) ?
If your model is stored as lines, the pfdGeoBuilder shouldn't modify it.
-yair
>
> Thanks for that - it now works for test models constructed within the code.
>
> Only problem now is the pfdGeoBuilder replaces polys with triangles which
> means I can't use any loader to import a wireframe model.
>
> Hopefully this will be my last question for a long while and the answer may
> help others since it surely can't be so uncommon....
>
> Yours hopefully.....
>
>
> -----Original Message-----
> From: Benedikt Kessler [mailto:bjk++at++munich.sgi.com]
> Sent: 10 September 2002 16:52
> To: Tomlinson, Gordon
> Cc: Costello, Michael; info-performer++at++sgi.com
> Subject: Re: [info-performer] WIREFRAME without triangles - Desperate
> for Help !!
>
>
> Hi!
>
> In the times of IRISGL, Performer used to draw a short triangle strip
> instead of a quad. Now that we have OpenGL Performer (without IRIS GL)
> this has been corrected.
>
> Unfortunately in wireframe mode there are still two line strips drawn
> (for the two former triangles). Maybe this is intentional, maybe this
> was simply not fixed...
>
> In other words: you may try using polygons instead of quads. Dont forget
> to specify the length array!
>
> Bye! Benedikt
>
>
>
>
> > "Tomlinson, Gordon" wrote:
> >
> > Try looking at the manual pages and samples for pfHighlights and
> > draw callbacks, you do many things with these two things
> >
> > Gordon
> >
> > -----Original Message-----
> > From: Costello, Michael
> > To: 'info-performer++at++sgi.com'
> > Sent: 9/10/2002 7:54 AM
> > Subject: [info-performer] WIREFRAME without triangles - Desperate for
> > Help !!
> >
> > Hello PFers!
> >
> > We've just purchased some Performer licences for Linux and since we
> > can't
> > purchase support for this, I'd be very grateful if someone could tell
> > me
> > the
> > answer to this seemingly basic question.
> >
> > I've created a test program which constructs a rectangle rendered in
> > wireframe mode. Whether I set wireframe through the gset, its geoset
> > or
> > in
> > the global state with pfEnable, it always appeats as two congruent
> > triangles
> > (i.e. rectangle with a single diagonal line).
> >
> > Sure it must be possible to tell Performer not to trinagulise these
> > models?
> >
> > Please help!!
> >
> > -----------------------------------------------------------------------
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> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com
> -----------------------------------------------------------------------
>
> -----------------------------------------------------------------------
> List Archives, Info, FAQ: http://www.sgi.com/software/performer/
> Open Development Project: http://oss.sgi.com/projects/performer/
> Submissions: info-performer++at++sgi.com
> Admin. requests: info-performer-request++at++sgi.com
> -----------------------------------------------------------------------
>
--
\_________ \_____ \__ \__ \_____
\_________ \_____ \__ \__ \_____ Yair Kurzion
\__ \__ \____\__ \__ yair++at++sgi.com
\__ \__ \__ (650) 933-6502
\__ \__ \__
\__ \__ \__
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