pfGSetLineWidth broken?

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Louis Bolduc (louis++at++speech.iar.nrc.ca)
Wed, 3 Aug 94 09:28:54 EDT

Ok, I'm no Performer wizard, but this sounds like pretty basic stuff... I can't
seem to be able to get lines wider than 1 pixel. Here's a piece of code that
should give me lines five pixels wide, but invariably gives me 1 pixel wide
lines... what's wrong ?

My system is an Indigo Elan running IRIX 5.2 and Performer 1.2...

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <gl/device.h>
#include <Performer/pf.h>

static pfVec3 coords [] = {
    { 0.0F, -30.0F, 0.0F },
    { 0.0F, 30.0F, 0.0F },
    { -30.0F, 0.0F, 0.0F },
    { 30.0F, 0.0F, 0.0F },
    { 0.0F, 0.0F, -30.0F },
    { 0.0F, 0.0F, 30.0F }
};

static pfVec4 colors [] = {
     { 1.0F, 1.0F, 1.0F, 1.0F }
};

static pfGeode *make_lines ( void )

{
    void *arena = pfGetSharedArena ();
    pfGeoSet *gset = pfNewGSet ( arena );
    pfGeoState *gstate = pfNewGState ( arena );
    pfGeode *lines = pfNewGeode ();

    pfGSetAttr ( gset, PFGS_COORD3, PFGS_PER_VERTEX, coords, NULL );
    pfGSetAttr ( gset, PFGS_COLOR4, PFGS_OVERALL, colors, NULL );
    pfGSetPrimType ( gset, PFGS_LINES );
    pfGSetNumPrims ( gset, 3 );
    pfGSetLineWidth ( gset, 5.0F );

    pfGSetGState ( gset, gstate );
    pfAddGSet ( lines, gset );

    return lines;
}

static void OpenPipeline ( pfPipe *p )

{
    foreground ();
    prefposition ( 100, 500, 100, 500 );
    winopen ( "IRIS Performer" );

    pfInitGfx ( p );
    pfApplyMtl ( pfNewMtl ( pfGetSharedArena () ) );
    pfApplyLModel ( pfNewLModel ( pfGetSharedArena () ) );
}

main ()

{
    float t = 0.0f;
    pfScene *scene;
    pfPipe *p;
    pfChannel *chan;

    pfInit ();
    pfMultiprocess ( PFMP_DEFAULT );
    pfConfig ();

    scene = pfNewScene ();
    pfAddChild ( scene, make_lines () );
    pfAddChild ( scene, pfNewLSource () );

    p = pfGetPipe ( 0 );
    pfInitPipe ( p, OpenPipeline );

    chan = pfNewChan ( p );
    pfChanScene ( chan, scene );
    pfChanNearFar ( chan, 1.0f, 1000.0f );
    pfChanFOV ( chan, 45.0f, 0.0f );

    pfInitClock ( 0.0f );

    while ( t < 20.0f ) {
        float s, c;
        pfCoord view;

        pfSync ();

        t = pfGetTime ();
        pfSinCos ( 45.0f * t, &s, &c );
        pfSetVec3 ( view.hpr, 45.0f * t, -10.0f, 0 );
        pfSetVec3 ( view.xyz, 100.0f * s, -110.0f * c, 30.0f );
        pfChanView ( chan, view.xyz, view.hpr );

        pfFrame ();
    }

    pfExit ();
    return 0;
}

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