Download from gintro examples directory

/* File: pfexLoadModel.c
*/

#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 
#include 

void pfexInitConverter(char *fname_model);
pfScene *pfexInitScene(char *fname_model);

void usage(void)
{
    fprintf(stderr, "usage: pfexLoadModel fname_model\n");
    fprintf(stderr, "       pfexLoadModel [-usage|-help]\n");
    exit(-1);
}

int main(int argc, char **argv)
{
    pfScene *scene;
    if (argc != 2 || !strcmp(argv[1], "-usage") || !strcmp(argv[1], "-help"))
	usage();
    pfInit();
    pfexInitConverter(argv[1]);
    pfCAVEConfig(&argc, argv, NULL);
    pfConfig();
    pfCAVEInitChannels();
    scene = pfexInitScene(argv[1]);
    pfChanScene(pfCAVEMasterChan(), scene);
    while (!CAVEgetbutton(CAVE_ESCKEY)) {
	pfSync();
	pfCAVEPreFrame();
	pfFrame();
	pfCAVEPostFrame();
    }
    pfCAVEHalt();
    pfExit();
}

void pfexInitConverter(char *fname_model)
{
    if (!pfdInitConverter(fname_model)) {
	fprintf(stderr, "Could not init converter for %s\n", fname_model);
	pfExit();
	exit(-1);
    }
}

pfScene *pfexInitScene(char *fname_model)
{
    pfScene *scene;
    pfNode *node;
    pfGeoState *gstate;
    pfLightSource *lightsource;

    scene = pfNewScene();
    gstate = pfNewGState(pfGetSharedArena());
    pfGStateMode(gstate, PFSTATE_ENLIGHTING, PF_ON);
    pfGStateMode(gstate, PFSTATE_CULLFACE, PFCF_OFF);
    pfSceneGState(scene, gstate);
    lightsource = pfNewLSource();
    pfAddChild(scene, lightsource);

    if (node = pfdLoadFile(fname_model))
	pfAddChild(scene, node);
    else {
	fprintf(stderr, "Could not open %s\n", fname_model);
	pfExit();
	exit(-1);
    }
    return scene;
}