Path: chuka.playstation.co.uk!scea!greg_labrec@interactive.sony.com
From: Manny Najera <mannyn@ix.netcom.com>
Newsgroups: scea.yaroze.programming.3d_graphics
Subject: Problem makin' a TMD
Date: Mon, 25 Aug 1997 23:54:15 -0500
Organization: SCEA News Server
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I'm trying to make a simple 4 sided polygon.  This chunk of code is
supposed to make an F_4_NL, but for some reason, it doesn't work.

If I have:

#define thingTMD (u_long *)0x800b0000

then I call this function like so:

make_thing(thingTMD);

then I link it to a GsDOBJ2 like I'm supposed to, I set up the lights
and everything, but this code still does not work.

void make_thing(u_long *addr)
{

 TMD_OBJ *obj_table;
 u_long *vert_table;
 u_long *norm_table;
 u_long *prim_table;

 TMD_VERT v;

 // header

 setTMD_HDR((TMD_HDR *)addr, 0x00000041, 1, 1);
 addr = (u_long *)((TMD_HDR *)addr + 1);

  // object table

 obj_table = (TMD_OBJ *)addr;
 addr = (u_long *)((TMD_OBJ *)addr + 1);

 // prim table

 prim_table = addr;

 setPRIM_HDR((PRIM_HDR *)addr, F_4_NL, 1, 3, 5);
 addr = (u_long *)((PRIM_HDR *)addr + 1);
 setTMD_F_4_NL((TMD_F_4_NL *)addr, 128, 128, 128, 0, 1, 2, 3);
 addr = (u_long *)((TMD_F_4_NL *)addr + 1);


 // vert table

 vert_table = addr;

 setVector(&v, 0, 64, 0);
 setTMD_VERT((TMD_VERT *)addr, v.vx, v.vy, v.vz);
 addr = (u_long *)((TMD_VERT *)addr + 1);

 setVector(&v, 32, 64, 0);
 setTMD_VERT((TMD_VERT *)addr, v.vx, v.vy, v.vz);
 addr = (u_long *)((TMD_VERT *)addr + 1);

 setVector(&v, 64, 64, 0);
 setTMD_VERT((TMD_VERT *)addr, v.vx, v.vy, v.vz);
 addr = (u_long *)((TMD_VERT *)addr + 1);

 setVector(&v, 96, 64, 0);
 setTMD_VERT((TMD_VERT *)addr, v.vx, v.vy, v.vz);
 addr = (u_long *)((TMD_VERT *)addr + 1);

 // norm table

 norm_table = addr;

 // setup object table

 setTMD_OBJ(obj_table, vert_table, 4, norm_table, 0, prim_table, 1, 0);

}

And... why don't the libraries support straight lines in a tmd?  This is
pure sillines!  My whole game is based on straight lines!

Manny Najera