Path: chuka.playstation.co.uk!scea!greg_labrec@interactive.sony.com
From: Jorge Freitas <jfreitas@netcom.ca>
Newsgroups: scea.yaroze.programming.3d_graphics
Subject: Re: Creating a TMD on the fly
Date: Wed, 28 May 1997 22:13:19 -0400
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It's fixed.  I made several changes to the structures, changed the scale
of the vertecies, and voila...

I need to change the code to handle different primitives, and I'm still
not sure how the vertex and normal values are stored, is it -1 or -4096?

Here is the working code, if anyone is interested, and be sure NOT to
call GsMapModelingData when intializing the Object...

typedef struct
{
	long int ID;
	long int FLAGS;
	long int NOBJ;
}TMD_Header;

typedef struct
{
	unsigned long int *vert_top;
	unsigned long int n_vert;
	unsigned long int *normal_top;
	unsigned long int n_normal;
	unsigned long int *primitive_top;
	unsigned long int n_primitive;
	long int scale;
}TMD_Object;

typedef struct
{
	char olen;
	char ilen;
	char flag;
	char mode;

	unsigned char r;
	unsigned char g;
	unsigned char b;
	unsigned char packet_mode;

	unsigned short int n;
	unsigned short int v0;
	unsigned short int v1;
	unsigned short int v2;
}TMD_Primitive;

typedef struct
{
	short int vx;
	short int vy;
	short int vz;
	short int pad;
}TMD_Vertex;

typedef struct
{
	short int nx;
	short int ny;
	short int nz;
	short int pad;
}TMD_Normal;

typedef struct
{
	TMD_Header Header;
	TMD_Object Object;
	TMD_Primitive Primitive_Table[ 1 ];
	TMD_Vertex Vertex_Table[ 3 ];
	TMD_Normal Normal_Table[ 1 ];
}TMD;

TMD Test_TMD;

/************
* Build_TMD *
************/
void Build_TMD( void )
{
	Test_TMD.Header.ID = 0x41;
	Test_TMD.Header.FLAGS = 1;
	Test_TMD.Header.NOBJ = 1;

	Test_TMD.Object.vert_top = (unsigned long int *)&Test_TMD.Vertex_Table;
	Test_TMD.Object.n_vert = 3;
	Test_TMD.Object.normal_top = (unsigned long int
*)&Test_TMD.Normal_Table;
	Test_TMD.Object.n_normal = 1;
	Test_TMD.Object.primitive_top = (unsigned long int
*)&Test_TMD.Primitive_Table;
	Test_TMD.Object.n_primitive = 1;
	Test_TMD.Object.scale = 1;

	Test_TMD.Vertex_Table[ 0 ].vx = 0;
	Test_TMD.Vertex_Table[ 0 ].vy = -100;
	Test_TMD.Vertex_Table[ 0 ].vz = 0;
	Test_TMD.Vertex_Table[ 0 ].pad = 0;

	Test_TMD.Vertex_Table[ 1 ].vx = -100;
	Test_TMD.Vertex_Table[ 1 ].vy = 100;
	Test_TMD.Vertex_Table[ 1 ].vz = 0;
	Test_TMD.Vertex_Table[ 1 ].pad = 0;

	Test_TMD.Vertex_Table[ 2 ].vx = 100;
	Test_TMD.Vertex_Table[ 2 ].vy = 100;
	Test_TMD.Vertex_Table[ 2 ].vz = 0;
	Test_TMD.Vertex_Table[ 2 ].pad = 0;

	Test_TMD.Normal_Table[ 0 ].nx = 0;
	Test_TMD.Normal_Table[ 0 ].ny = 0;
	Test_TMD.Normal_Table[ 0 ].nz = -1;
	Test_TMD.Normal_Table[ 0 ].pad = 0;

	Test_TMD.Primitive_Table[ 0 ].olen = 4;
	Test_TMD.Primitive_Table[ 0 ].ilen = 3;
	Test_TMD.Primitive_Table[ 0 ].flag = 0;
	Test_TMD.Primitive_Table[ 0 ].mode = 0x20;
	Test_TMD.Primitive_Table[ 0 ].r = 0xc8;
	Test_TMD.Primitive_Table[ 0 ].g = 0xc8;
	Test_TMD.Primitive_Table[ 0 ].b = 0xc8;
	Test_TMD.Primitive_Table[ 0 ].packet_mode = 0x20;
	Test_TMD.Primitive_Table[ 0 ].n = 0;
	Test_TMD.Primitive_Table[ 0 ].v0 = 0;
	Test_TMD.Primitive_Table[ 0 ].v1 = 2;
	Test_TMD.Primitive_Table[ 0 ].v2 = 1;
}