Path: chuka.playstation.co.uk!scea!peter_alau@playstation.sony.com
From: Charles Nicholson <chnicholson@vassar.edu>
Newsgroups: scee.yaroze.programming.3d_graphics,scea.yaroze.programming.3d_graphics
Subject: Joy of TMD's.  (Be warned, long source code included)
Date: Fri, 08 Jan 1999 15:43:07 -0500
Organization: SCEA News Server
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Xref: chuka.playstation.co.uk scee.yaroze.programming.3d_graphics:1124 scea.yaroze.programming.3d_graphics:330

Hello to all again...  I'm slowly figuring stuff out, but i'm afraid
i've hit something of a wall.  I'm trying to display a simple cube .tmd
file, and the yaroze keeps hanging on me.  I've reduced the program to
what i think are the bare essentials, and it absolutely refuses to work
for me.  If anyone wouldn't mind looking over the source, i would REALLY
appreciate any advice/comments/etc...

thanks a lot-
charles

........................................ TEST.C
..........................................

#define TMD_FILE (u_long *) 0x80120000

GsDOBJ2 object;
GsCOORDINATE2 coord;
VECTOR pos;

GsRVIEW2 view;

u_long *tmd = TMD_FILE;

void InitTMD(void)
{
  tmd++;
  GsMapModelingData(tmd);
  tmd += 2;

  GsLinkObject4((u_long)tmd,&object,1 << 10);
  GsInitCoordinate2(WORLD,&coord);
}

void InitView(void)
{
  view.vrx = view.vry = view.vrz = 0;
  view.vpx = view.vpy = 0;
  view.vpz = -100;
  view.rz = 0;
  view.super = WORLD;
}

void DrawTMD(int db)
{
  MATRIX tmp;

  GsGetLs(&coord,&tmp);
  GsSetLsMatrix(&tmp);
  GsSortObject4(&object,&WOT[db],4,getScratchAddr(0));
}

void main(void)
{
  int draw_buf;

  SetVideoMode(MODE_NTSC);
  GsInitGraph(320,240,4,0,0);
  GsDefDispBuff(0,0,0,240);

  GsInit3D();
  InitView();

  GsSetAmbient(ONE / 2,ONE / 2,ONE / 2);

  InitTMD();

  GetPadBuf(&bb0,&bb1);

  WOT[0].length = WOT[1].length = 10;
  WOT[0].org = WOT_tag[0];
  WOT[1].org = WOT_tag[1];

  coord.coord.m[0][0] = 1;
  coord.coord.m[1][1] = 1;
  coord.coord.m[2][2] = 1;

  while (!done)
  {
    draw_buf = GsGetActiveBuff();
    GsSetWorkBase((PACKET *) GPUPacket[draw_buf]);
    GsClearOt(0,0,&WOT[draw_buf]);

    DrawTMD(draw_buf);

    DrawSync(0);
    VSync(0);

    GsSwapDispBuff();
    GsSortClear(0,0,0,&WOT[draw_buf]);
    GsDrawOt(&WOT[draw_buf]);
  }
}