/*
===========================================================================
Copyright (C) 1997-2001 Id Software, Inc.

This file is part of Quake 2 source code.

Quake 2 source code is free software; you can redistribute it
and/or modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.

Quake 2 source code is distributed in the hope that it will be
useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with Quake 2 source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
===========================================================================
*/

// r_model.c -- model loading and caching

#include "r_local.h"

model_t	*loadmodel;
int		modfilelen;

void *ModChunk_Begin (size_t maxsize);
void *ModChunk_Alloc (size_t size);
size_t ModChunk_End (void);
void ModChunk_Free (void *base);
size_t Mod_GetAllocSizeSprite (model_t *mod, void *buffer);
void Mod_LoadSpriteModel (model_t *mod, void *buffer);
void Mod_LoadBrushModel (model_t *mod, void *buffer);

#ifdef MD2_AS_MD3
size_t Mod_GetAllocSizeMD2New (model_t *mod, void *buffer);
void Mod_LoadAliasMD2ModelNew (model_t *mod, void *buffer);
#else
size_t Mod_GetAllocSizeMD2Old (model_t *mod, void *buffer);
void Mod_LoadAliasMD2ModelOld (model_t *mod, void *buffer);
#endif

//Harven++ MD3
size_t Mod_GetAllocSizeMD3 (model_t *mod, void *buffer);
void Mod_LoadAliasMD3Model (model_t *mod, void *buffer);
//Harven-- MD3
model_t *Mod_LoadModel (model_t *mod, qboolean crash);

byte	mod_novis[MAX_MAP_LEAFS/8];

#define	MAX_MOD_KNOWN	(MAX_MODELS*2)	// Knightmare- was 512
model_t	mod_known[MAX_MOD_KNOWN];
int		mod_numknown;

// the inline * models from the current map are kept seperate
model_t	mod_inline[MAX_MOD_KNOWN];

int		registration_sequence;
qboolean	registration_active;	// map registration flag

/*
===============
Mod_PointInLeaf
===============
*/
mleaf_t *Mod_PointInLeaf (vec3_t p, model_t *model)
{
	mnode_t		*node;
	float		d;
	cplane_t	*plane;
	
	if (!model || !model->nodes)
		VID_Error (ERR_DROP, "Mod_PointInLeaf: bad model");

	node = model->nodes;
	while (1)
	{
		if (node->contents != -1)
			return (mleaf_t *)node;
		plane = node->plane;
		d = DotProduct (p,plane->normal) - plane->dist;
		if (d > 0)
			node = node->children[0];
		else
			node = node->children[1];
	}
	
	return NULL;	// never reached
}


/*
===================
Mod_DecompressVis
===================
*/
byte *Mod_DecompressVis (byte *in, model_t *model)
{
	static byte	decompressed[MAX_MAP_LEAFS/8];
	int		c;
	byte	*out;
	int		row;

	row = (model->vis->numclusters+7)>>3;	
	out = decompressed;

	if (!in)
	{	// no vis info, so make all visible
		while (row)
		{
			*out++ = 0xff;
			row--;
		}
		return decompressed;		
	}

	do
	{
		if (*in)
		{
			*out++ = *in++;
			continue;
		}
	
		c = in[1];
		in += 2;
		while (c)
		{
			*out++ = 0;
			c--;
		}
	} while (out - decompressed < row);
	
	return decompressed;
}

/*
==============
Mod_ClusterPVS
==============
*/
byte *Mod_ClusterPVS (int cluster, model_t *model)
{
	if (cluster == -1 || !model->vis)
		return mod_novis;
	return Mod_DecompressVis ( (byte *)model->vis + model->vis->bitofs[cluster][DVIS_PVS],
		model);
}


//===============================================================================

/*
================
Mod_Modellist_f
================
*/
void Mod_Modellist_f (void)
{
	int		i;
	model_t	*mod;
	size_t	total;

	total = 0;
	VID_Printf (PRINT_ALL,"Loaded models:\n");
	for (i=0, mod=mod_known ; i < mod_numknown ; i++, mod++)
	{
		if (!mod->name[0])
			continue;
		VID_Printf (PRINT_ALL, "%8i : %s\n",mod->extradatasize, mod->name);
		total += mod->extradatasize;
	}
	VID_Printf (PRINT_ALL, "Total resident: %i\n", total);
}

/*
===============
Mod_Init
===============
*/
void Mod_Init (void)
{
	memset (mod_novis, 0xff, sizeof(mod_novis));

	registration_active = false;	// map registration flag
}



/*
==================
Mod_ForName

Loads in a model for the given name
==================
*/
model_t *Mod_ForName (char *name, qboolean crash)
{
	model_t	*mod;
	unsigned *buf;
	int		i;
	
	if (!name[0])
		VID_Error (ERR_DROP, "Mod_ForName: NULL name");
		
	//
	// inline models are grabbed only from worldmodel
	//
	if (name[0] == '*')
	{
		i = atoi(name+1);
		if (i < 1 || !r_worldmodel || i >= r_worldmodel->numsubmodels)
			VID_Error (ERR_DROP, "bad inline model number");
		return &mod_inline[i];
	}

	//
	// search the currently loaded models
	//
	for (i=0, mod=mod_known; i<mod_numknown; i++, mod++)
	{
		if (!mod->name[0])
			continue;
		if (!strcmp (mod->name, name) )
			return mod;
	}
	
	//
	// find a free model slot spot
	//
	for (i=0, mod=mod_known; i<mod_numknown; i++, mod++)
	{
		if (!mod->name[0])
			break;	// free spot
	}
	if (i == mod_numknown)
	{
		if (mod_numknown == MAX_MOD_KNOWN)
			VID_Error (ERR_DROP, "mod_numknown == MAX_MOD_KNOWN");
		mod_numknown++;
	}
//	strncpy (mod->name, name);
	Q_strncpyz (mod->name, name, sizeof(mod->name));
	
	//
	// load the file
	//
	modfilelen = FS_LoadFile (mod->name, &buf);
	if (!buf)
	{
		if (crash)
			VID_Error (ERR_DROP, "Mod_NumForName: %s not found", mod->name);
		memset (mod->name, 0, sizeof(mod->name));
		return NULL;
	}
	
	loadmodel = mod;

	//
	// fill it in
	//


	// call the apropriate loader
	
	switch (LittleLong(*(unsigned *)buf))
	{
	case IDMD2HEADER:
#ifdef MD2_AS_MD3
	//	loadmodel->extradata = Hunk_Begin (0x800000); // was 0x500000
		loadmodel->extradata = ModChunk_Begin (Mod_GetAllocSizeMD2New (mod, buf));
		Mod_LoadAliasMD2ModelNew (mod, buf);
#else
	//	loadmodel->extradata = Hunk_Begin (0x200000);
		loadmodel->extradata = ModChunk_Begin (Mod_GetAllocSizeMD2Old (mod, buf));
		Mod_LoadAliasMD2ModelOld (mod, buf);
#endif // MD2_AS_MD3
		loadmodel->extradatasize = ModChunk_End ();
		break;
	//Harven++ MD3
	case IDMD3HEADER:
	//	loadmodel->extradata = Hunk_Begin (0x800000);
		loadmodel->extradata = ModChunk_Begin (Mod_GetAllocSizeMD3 (mod, buf));
		Mod_LoadAliasMD3Model (mod, buf);
		loadmodel->extradatasize = ModChunk_End ();
		break;
	//Harven-- MD3		
	case IDSP2HEADER:
	//	loadmodel->extradata = Hunk_Begin (0x10000);
		loadmodel->extradata = ModChunk_Begin (Mod_GetAllocSizeSprite (mod, buf));
		Mod_LoadSpriteModel (mod, buf);
		loadmodel->extradatasize = ModChunk_End ();
		break;
	
	case IDBSPHEADER:
		loadmodel->extradata = Hunk_Begin (0x2000000); // was 0x1000000
		Mod_LoadBrushModel (mod, buf);
		loadmodel->extradatasize = Hunk_End ();
		break;

	default:
		VID_Error (ERR_DROP,"Mod_NumForName: unknown fileid for %s", mod->name);
		break;
	}

//	loadmodel->extradatasize = Hunk_End ();

	FS_FreeFile (buf);

	return mod;
}

/*
===============================================================================

					BRUSHMODEL LOADING

===============================================================================
*/

byte	*mod_base;


/*
=================
Mod_LoadLighting
=================
*/
void Mod_LoadLighting (lump_t *l)
{
	if (!l->filelen)
	{
		loadmodel->lightdata = NULL;
		return;
	}
	loadmodel->lightdata = Hunk_Alloc ( l->filelen);	
	memcpy (loadmodel->lightdata, mod_base + l->fileofs, l->filelen);
}


/*
=================
Mod_LoadVisibility
=================
*/
void Mod_LoadVisibility (lump_t *l)
{
	int		i;

	if (!l->filelen)
	{
		loadmodel->vis = NULL;
		return;
	}
	loadmodel->vis = Hunk_Alloc ( l->filelen);	
	memcpy (loadmodel->vis, mod_base + l->fileofs, l->filelen);

	loadmodel->vis->numclusters = LittleLong (loadmodel->vis->numclusters);
	for (i=0 ; i<loadmodel->vis->numclusters ; i++)
	{
		loadmodel->vis->bitofs[i][0] = LittleLong (loadmodel->vis->bitofs[i][0]);
		loadmodel->vis->bitofs[i][1] = LittleLong (loadmodel->vis->bitofs[i][1]);
	}
}


/*
=================
Mod_LoadVertexes
=================
*/
void Mod_LoadVertexes (lump_t *l)
{
	dvertex_t	*in;
	mvertex_t	*out;
	int			i, count;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( count*sizeof(*out));	

	loadmodel->vertexes = out;
	loadmodel->numvertexes = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		out->position[0] = LittleFloat (in->point[0]);
		out->position[1] = LittleFloat (in->point[1]);
		out->position[2] = LittleFloat (in->point[2]);
	}
}

/*
=================
RadiusFromBounds
=================
*/
float RadiusFromBounds (vec3_t mins, vec3_t maxs)
{
	int		i;
	vec3_t	corner;

	for (i=0 ; i<3 ; i++)
	{
		corner[i] = fabs(mins[i]) > fabs(maxs[i]) ? fabs(mins[i]) : fabs(maxs[i]);
	}

	return VectorLength (corner);
}


/*
=================
Mod_LoadSubmodels
=================
*/
void Mod_LoadSubmodels (lump_t *l)
{
	dmodel_t	*in;
	mmodel_t	*out;
	int			i, j, count;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s", loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( count*sizeof(*out));	

	// Knightmare- catch submodel overflow
	if (count >= MAX_MOD_KNOWN)
		VID_Error (ERR_DROP, "MOD_LoadBmodel: too many submodels (%i >= %i) in %s", count, MAX_MOD_KNOWN, loadmodel->name);

	loadmodel->submodels = out;
	loadmodel->numsubmodels = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{	// spread the mins / maxs by a pixel
			out->mins[j] = LittleFloat (in->mins[j]) - 1;
			out->maxs[j] = LittleFloat (in->maxs[j]) + 1;
			out->origin[j] = LittleFloat (in->origin[j]);
		}
		out->radius = RadiusFromBounds (out->mins, out->maxs);
		out->headnode = LittleLong (in->headnode);
		out->firstface = LittleLong (in->firstface);
		out->numfaces = LittleLong (in->numfaces);
	}
}

/*
=================
Mod_LoadEdges
=================
*/
void Mod_LoadEdges (lump_t *l)
{
	dedge_t *in;
	medge_t *out;
	int 	i, count;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( (count + 1) * sizeof(*out));	

	loadmodel->edges = out;
	loadmodel->numedges = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		out->v[0] = (unsigned short)LittleShort(in->v[0]);
		out->v[1] = (unsigned short)LittleShort(in->v[1]);
	}
}

//=======================================================

// store the names of last textures that failed to load
#define NUM_FAIL_TEXTURES 256
char lastFailedTexture[NUM_FAIL_TEXTURES][MAX_OSPATH];
unsigned int lastFailedTextureHash[NUM_FAIL_TEXTURES];
static unsigned failedTexListIndex;

/*
===============
Mod_InitFailedTexList
===============
*/
void Mod_InitFailedTexList (void)
{
	int		i;

	for (i=0; i<NUM_FAIL_TEXTURES; i++) {
		Com_sprintf(lastFailedTexture[i], sizeof(lastFailedTexture[i]), "\0");
		lastFailedTextureHash[i] = 0;
	}

	failedTexListIndex = 0;
}

/*
===============
Mod_CheckTexFailed
===============
*/
qboolean Mod_CheckTexFailed (char *name)
{
	int				i;
	unsigned int	hash;

	hash = Com_HashFileName(name, 0, false);
	for (i=0; i<NUM_FAIL_TEXTURES; i++)
	{
		if (hash == lastFailedTextureHash[i]) {	// compare hash first
			if (lastFailedTexture[i] && strlen(lastFailedTexture[i])
				&& !strcmp(name, lastFailedTexture[i]))
			{	// we already tried to load this image, didn't find it
				return true;
			}
		}
	}
	return false;
}

/*
===============
Mod_AddToFailedTexList
===============
*/
void Mod_AddToFailedTexList (char *name)
{
	Com_sprintf(lastFailedTexture[failedTexListIndex], sizeof(lastFailedTexture[failedTexListIndex]), "%s", name);
	lastFailedTextureHash[failedTexListIndex] = Com_HashFileName(name, 0, false);
	failedTexListIndex++;

	// wrap around to start of list
	if (failedTexListIndex >= NUM_FAIL_TEXTURES)
		failedTexListIndex = 0;
}

/*
===============
Mod_FindTexture
A wrapper function that uses a failed list
to speed map load times
===============
*/
image_t	*Mod_FindTexture (char *name, imagetype_t type)
{
	image_t	*image;

	// don't try again to load a texture that just failed
	if (Mod_CheckTexFailed (name))
		return glMedia.notexture;

	image = R_FindImage (name, type);

	if (!image || (image == glMedia.notexture))
		Mod_AddToFailedTexList (name);

	return image;
}

//=======================================================

// store the names and sizes of size reference .wal files
typedef struct walsize_s
{
	char			name[MAX_OSPATH];
	unsigned int	hash;
	int				width;
	int				height;
} walsize_t;

#define NUM_WALSIZES 1024
walsize_t walSizeList[NUM_WALSIZES];
static unsigned walSizeListIndex;

/*
===============
Mod_InitWalSizeList
===============
*/
void Mod_InitWalSizeList (void)
{
	int		i;

	for (i=0; i<NUM_WALSIZES; i++) {
		Com_sprintf(walSizeList[i].name, sizeof(walSizeList[i].name), "\0");
		walSizeList[i].hash = 0;
		walSizeList[i].width = 0;
		walSizeList[i].height = 0;
	}
	walSizeListIndex = 0;
}

/*
===============
Mod_CheckWalSizeList
===============
*/
qboolean Mod_CheckWalSizeList (const char *name, int *width, int *height)
{
	int				i;
	unsigned int	hash;

	hash = Com_HashFileName(name, 0, false);
	for (i=0; i<NUM_WALSIZES; i++)
	{
		if (hash == walSizeList[i].hash) {	// compare hash first
			if (walSizeList[i].name && strlen(walSizeList[i].name)
				&& !strcmp(name, walSizeList[i].name))
			{	// return size of texture
				if (width)
					*width = walSizeList[i].width;
				if (height)
					*height = walSizeList[i].height;
				return true;
			}
		}
	}
	return false;
}

/*
===============
Mod_AddToWalSizeList
===============
*/
void Mod_AddToWalSizeList (const char *name, int width, int height)
{
	Com_sprintf(walSizeList[walSizeListIndex].name, sizeof(walSizeList[walSizeListIndex].name), "%s", name);
	walSizeList[walSizeListIndex].hash = Com_HashFileName(name, 0, false);
	walSizeList[walSizeListIndex].width = width;
	walSizeList[walSizeListIndex].height = height;
	walSizeListIndex++;

	// wrap around to start of list
	if (walSizeListIndex >= NUM_WALSIZES)
		walSizeListIndex = 0;
}
/*
=================
Mod_GetWalSize
Adapted from Q2E
=================
*/
static void Mod_GetWalSize (const char *name, int *width, int *height)
{
	char			path[MAX_QPATH];
	miptex_t		*mt;
	
	Com_sprintf (path, sizeof(path), "textures/%s.wal", name);

	if (Mod_CheckWalSizeList(name, width, height)) // check if already in list
		return;

	FS_LoadFile (path, (void **)&mt); // load .wal file 
	if (!mt)
	{	// set null value to tell us to get actual size of texture
		*width = *height = -1;
		Mod_AddToWalSizeList(name, *width, *height); // add to list
		return;
	}
	*width = LittleLong (mt->width); // grab size from wal
	*height = LittleLong (mt->height);
	FS_FreeFile ((void *)mt); // free the wal

	Mod_AddToWalSizeList(name, *width, *height); // add to list
}


/*
=================
Mod_LoadTexinfo
=================
*/
void Mod_LoadTexinfo (lump_t *l)
{
	texinfo_t *in;
	mtexinfo_t *out, *step;
	int 	i, j, count;
	char	name[MAX_QPATH];
	int		next;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( count*sizeof(*out));	

	loadmodel->texinfo = out;
	loadmodel->numtexinfo = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<8 ; j++)
			out->vecs[0][j] = LittleFloat (in->vecs[0][j]);

		out->flags = LittleLong (in->flags);
		next = LittleLong (in->nexttexinfo);
		if (next > 0)
			out->next = loadmodel->texinfo + next;
		else
		    out->next = NULL;

		Com_sprintf (name, sizeof(name), "textures/%s.wal", in->texture);
		out->image = Mod_FindTexture (name, it_wall); // was R_FindImage

		if (!out->image)
		{
			VID_Printf (PRINT_ALL, "Couldn't load %s\n", name);
			out->image = glMedia.notexture;
		}

		// Added glow
		Com_sprintf (name, sizeof(name), "textures/%s_glow.wal", in->texture);
		out->glow = Mod_FindTexture (name, it_skin); // was R_FindImage
		if (!out->glow)
			out->glow = glMedia.notexture;
		
		// Q2E HACK: find .wal dimensions for texture coord generation
		// NOTE: Once Q3 map support is added, be be sure to disable this
		// for Q3 format maps, because they will be natively textured with
		// hi-res textures.
		Mod_GetWalSize (in->texture, &out->texWidth, &out->texHeight);

		// If no .wal texture was found, use width & height of actual texture
		if (out->texWidth == -1 || out->texHeight == -1)
		{
			out->texWidth = out->image->width;
			out->texHeight = out->image->height;
		}
	}

	// count animation frames
	for (i=0 ; i<count ; i++)
	{
		out = &loadmodel->texinfo[i];
		out->numframes = 1;
		for (step = out->next ; step && step != out ; step=step->next)
			out->numframes++;
	}
}

/*
================
CalcSurfaceExtents

Fills in s->texturemins[] and s->extents[]
================
*/
void CalcSurfaceExtents (msurface_t *s)
{
	float	mins[2], maxs[2], val;
	int		i,j, e;
	mvertex_t	*v;
	mtexinfo_t	*tex;
	int		bmins[2], bmaxs[2];

	mins[0] = mins[1] = 999999;
	maxs[0] = maxs[1] = -99999;

	tex = s->texinfo;
	
	for (i=0 ; i<s->numedges ; i++)
	{
		e = loadmodel->surfedges[s->firstedge+i];
		if (e >= 0)
			v = &loadmodel->vertexes[loadmodel->edges[e].v[0]];
		else
			v = &loadmodel->vertexes[loadmodel->edges[-e].v[1]];
		
		for (j=0 ; j<2 ; j++)
		{
			val = v->position[0] * tex->vecs[j][0] + 
				v->position[1] * tex->vecs[j][1] +
				v->position[2] * tex->vecs[j][2] +
				tex->vecs[j][3];
			if (val < mins[j])
				mins[j] = val;
			if (val > maxs[j])
				maxs[j] = val;
		}
	}

	for (i=0 ; i<2 ; i++)
	{	
		bmins[i] = floor(mins[i]/16);
		bmaxs[i] = ceil(maxs[i]/16);

		s->texturemins[i] = bmins[i] * 16;
		s->extents[i] = (bmaxs[i] - bmins[i]) * 16;

//		if ( !(tex->flags & TEX_SPECIAL) && s->extents[i] > 512 /* 256 */ )
//			VID_Error (ERR_DROP, "Bad surface extents");
	}
}


void R_BuildPolygonFromSurface (msurface_t *fa);
void R_CreateSurfaceLightmap (msurface_t *surf);
void R_EndBuildingLightmaps (void);
void R_BeginBuildingLightmaps (model_t *m);

/*
=================
Mod_LoadFaces
=================
*/
void Mod_LoadFaces (lump_t *l)
{
	dface_t		*in;
	msurface_t 	*out;
	int			i, count, surfnum;
	int			planenum, side;
	int			ti;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( count*sizeof(*out));	

	loadmodel->surfaces = out;
	loadmodel->numsurfaces = count;

	currentmodel = loadmodel;

	R_BeginBuildingLightmaps (loadmodel);

	for ( surfnum=0 ; surfnum<count ; surfnum++, in++, out++)
	{
		out->firstedge = LittleLong(in->firstedge);
		out->numedges = LittleShort(in->numedges);		
		out->flags = 0;
		out->polys = NULL;

		planenum = LittleShort(in->planenum);
		side = LittleShort(in->side);
		if (side)
			out->flags |= SURF_PLANEBACK;			

		out->plane = loadmodel->planes + planenum;

		ti = LittleShort (in->texinfo);
		if (ti < 0 || ti >= loadmodel->numtexinfo)
			VID_Error (ERR_DROP, "MOD_LoadBmodel: bad texinfo number");
		out->texinfo = loadmodel->texinfo + ti;

		CalcSurfaceExtents (out);
				
	// lighting info

		for (i=0 ; i<MAXLIGHTMAPS ; i++)
			out->styles[i] = in->styles[i];
		i = LittleLong(in->lightofs);
		if (i == -1)
			out->samples = NULL;
		else
			out->samples = loadmodel->lightdata + i;
		
	// set the drawing flags
		
		if (out->texinfo->flags & SURF_WARP)
		{
			out->flags |= SURF_DRAWTURB;
			for (i=0; i<2; i++)
			{
				out->extents[i] = (WORLD_SIZE*2);	// was 16384
				out->texturemins[i] = -WORLD_SIZE;	// was -8192
			}
			R_SubdivideSurface (out);	// cut up polygon for warps
		}
		// Knightmare- Psychospaz's envmapping
		// windows get glass (envmap) effect... -psychospaz
		// but warp surfaces and solid alphas don't
		else if (out->texinfo->flags & (SURF_TRANS33|SURF_TRANS66))
			 //&& !((out->texinfo->flags & SURF_TRANS33) && (out->texinfo->flags & SURF_TRANS66)) )
		{
			if (!(out->texinfo->flags & SURF_NOLIGHTENV))
				out->flags |= SURF_ENVMAP;
		}

		// create lightmaps and polygons
		//if ( !(out->texinfo->flags & (SURF_SKY|SURF_TRANS33|SURF_TRANS66|SURF_WARP) ) )
		if ( !(out->texinfo->flags & (SURF_SKY|SURF_WARP) ) )
			R_CreateSurfaceLightmap (out);

		if (! (out->texinfo->flags & SURF_WARP) ) 
			R_BuildPolygonFromSurface (out);
	}

	R_EndBuildingLightmaps ();
}


/*
=================
Mod_SetParent
=================
*/
void Mod_SetParent (mnode_t *node, mnode_t *parent)
{
	node->parent = parent;
	if (node->contents != -1)
		return;
	Mod_SetParent (node->children[0], node);
	Mod_SetParent (node->children[1], node);
}

/*
=================
Mod_LoadNodes
=================
*/
void Mod_LoadNodes (lump_t *l)
{
	int			i, j, count, p;
	dnode_t		*in;
	mnode_t 	*out;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( count*sizeof(*out));	

	loadmodel->nodes = out;
	loadmodel->numnodes = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->minmaxs[j] = LittleShort (in->mins[j]);
			out->minmaxs[3+j] = LittleShort (in->maxs[j]);
		}
	
		p = LittleLong(in->planenum);
		out->plane = loadmodel->planes + p;

		out->firstsurface = LittleShort (in->firstface);
		out->numsurfaces = LittleShort (in->numfaces);
		out->contents = -1;	// differentiate from leafs

		for (j=0 ; j<2 ; j++)
		{
			p = LittleLong (in->children[j]);
			if (p >= 0)
				out->children[j] = loadmodel->nodes + p;
			else
				out->children[j] = (mnode_t *)(loadmodel->leafs + (-1 - p));
		}
	}
	
	Mod_SetParent (loadmodel->nodes, NULL);	// sets nodes and leafs
}

/*
=================
Mod_LoadLeafs
=================
*/
void Mod_LoadLeafs (lump_t *l)
{
	dleaf_t 	*in;
	mleaf_t 	*out;
	int			i, j, count, p;
	glpoly_t	*poly;

	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( count*sizeof(*out));	

	loadmodel->leafs = out;
	loadmodel->numleafs = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		for (j=0 ; j<3 ; j++)
		{
			out->minmaxs[j] = LittleShort (in->mins[j]);
			out->minmaxs[3+j] = LittleShort (in->maxs[j]);
		}

		p = LittleLong(in->contents);
		out->contents = p;

		out->cluster = LittleShort(in->cluster);
		out->area = LittleShort(in->area);

		out->firstmarksurface = loadmodel->marksurfaces +
			(unsigned short)LittleShort(in->firstleafface);	// Knightmare- make sure this doesn't turn negative!
		out->nummarksurfaces = LittleShort(in->numleaffaces);
		
		// underwater flag for caustics
		//if (out->contents & (CONTENTS_WATER|CONTENTS_SLIME) )
		if (out->contents & (MASK_WATER) )
		{	unsigned int flag;
			if (out->contents & CONTENTS_LAVA)
				flag = SURF_UNDERLAVA;
			else if (out->contents & CONTENTS_SLIME)
				flag = SURF_UNDERSLIME;
			else
				flag = SURF_UNDERWATER;
			for (j=0 ; j<out->nummarksurfaces ; j++)
			{
				out->firstmarksurface[j]->flags |= flag;
				for (poly = out->firstmarksurface[j]->polys; poly; poly=poly->next)
					poly->flags |= flag;
			}
		}
	}	
}

/*
=================
Mod_LoadMarksurfaces
=================
*/
void Mod_LoadMarksurfaces (lump_t *l)
{	
	int			i, j, count;
	unsigned short		*in;	// Knightmare- changed to unsigned short
	msurface_t **out;
	
	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	out = Hunk_Alloc ( count*sizeof(*out));	

	loadmodel->marksurfaces = out;
	loadmodel->nummarksurfaces = count;

	for ( i=0 ; i<count ; i++)
	{
		j = (unsigned short)LittleShort(in[i]);	// Knightmare- make this unsigned!
		if (j < 0 ||  j >= loadmodel->numsurfaces)
			VID_Error (ERR_DROP, "Mod_ParseMarksurfaces: bad surface number");
		out[i] = loadmodel->surfaces + j;
	}
}

/*
=================
Mod_LoadSurfedges
=================
*/
void Mod_LoadSurfedges (lump_t *l)
{	
	int		i, count;
	int		*in, *out;
	
	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);
	if (count < 1 || count >= MAX_MAP_SURFEDGES)
		VID_Error (ERR_DROP, "MOD_LoadBmodel: bad surfedges count in %s: %i",
		loadmodel->name, count);

	out = Hunk_Alloc ( count*sizeof(*out));	

	loadmodel->surfedges = out;
	loadmodel->numsurfedges = count;

	for ( i=0 ; i<count ; i++)
		out[i] = LittleLong (in[i]);
}


/*
=================
Mod_LoadPlanes
=================
*/
void Mod_LoadPlanes (lump_t *l)
{
	int			i, j;
	cplane_t	*out;
	dplane_t 	*in;
	int			count;
	int			bits;
	
	in = (void *)(mod_base + l->fileofs);
	if (l->filelen % sizeof(*in))
		VID_Error (ERR_DROP, "MOD_LoadBmodel: funny lump size in %s",loadmodel->name);
	count = l->filelen / sizeof(*in);

//original bug- Quake2Max
//	out = Hunk_Alloc ( count*2*sizeof(*out));
	out = Hunk_Alloc ( count*sizeof(*out));	
	
	loadmodel->planes = out;
	loadmodel->numplanes = count;

	for ( i=0 ; i<count ; i++, in++, out++)
	{
		bits = 0;
		for (j=0 ; j<3 ; j++)
		{
			out->normal[j] = LittleFloat (in->normal[j]);
			if (out->normal[j] < 0)
				bits |= 1<<j;
		}

		out->dist = LittleFloat (in->dist);
		out->type = LittleLong (in->type);
		out->signbits = bits;
	}
}

/*
=================
Mod_LoadBrushModel
=================
*/
void Mod_LoadBrushModel (model_t *mod, void *buffer)
{
	int			i;
	dheader_t	*header;
	mmodel_t 	*bm;
	
	loadmodel->type = mod_brush;
	if (loadmodel != mod_known)
		VID_Error (ERR_DROP, "Loaded a brush model after the world");

	header = (dheader_t *)buffer;

	i = LittleLong (header->version);
	if (i != BSPVERSION)
		VID_Error (ERR_DROP, "Mod_LoadBrushModel: %s has wrong version number (%i should be %i)", mod->name, i, BSPVERSION);

	// swap all the lumps
	mod_base = (byte *)header;

	for (i=0 ; i<sizeof(dheader_t)/4 ; i++)
		((int *)header)[i] = LittleLong ( ((int *)header)[i]);

	// load into heap	
	Mod_LoadVertexes (&header->lumps[LUMP_VERTEXES]);
	Mod_LoadEdges (&header->lumps[LUMP_EDGES]);
	Mod_LoadSurfedges (&header->lumps[LUMP_SURFEDGES]);
	Mod_LoadLighting (&header->lumps[LUMP_LIGHTING]);
	Mod_LoadPlanes (&header->lumps[LUMP_PLANES]);
	Mod_LoadTexinfo (&header->lumps[LUMP_TEXINFO]);
	Mod_LoadFaces (&header->lumps[LUMP_FACES]);
	Mod_LoadMarksurfaces (&header->lumps[LUMP_LEAFFACES]);
	Mod_LoadVisibility (&header->lumps[LUMP_VISIBILITY]);
	Mod_LoadLeafs (&header->lumps[LUMP_LEAFS]);
	Mod_LoadNodes (&header->lumps[LUMP_NODES]);
	Mod_LoadSubmodels (&header->lumps[LUMP_MODELS]);
	mod->numframes = 2;		// regular and alternate animation
	
	//
	// set up the submodels
	//
	for (i=0 ; i<mod->numsubmodels ; i++)
	{
		model_t	*starmod;

		bm = &mod->submodels[i];
		starmod = &mod_inline[i];

		*starmod = *loadmodel;
		
		starmod->firstmodelsurface = bm->firstface;
		starmod->nummodelsurfaces = bm->numfaces;
		starmod->firstnode = bm->headnode;
		if (starmod->firstnode >= loadmodel->numnodes)
			VID_Error (ERR_DROP, "Inline model %i has bad firstnode", i);

		VectorCopy (bm->maxs, starmod->maxs);
		VectorCopy (bm->mins, starmod->mins);
		starmod->radius = bm->radius;
	
		if (i == 0)
			*loadmodel = *starmod;

		starmod->numleafs = bm->visleafs;
	}
}

/*
===============================================================================

					MODEL MEMORY ALLOCATION

===============================================================================
*/

// It turns out that the Hunk_Begin(), Hunk_Alloc(), and Hunk_Free()
// functions used for BSP, alias model, and sprite loading are a wrapper around
// VirtualAlloc()/VirtualFree() on Win32 and they should only be used
// rarely and for large blocks of memory.  After about 185-190 VirtualAlloc()
// reserve calls are made on Win7 x64, the subsequent call fails.  Bad Carmack, bad!

// These ModChunk_ functions are a replacement that wrap around malloc()/free()
// and return pointers into sections aligned on cache lines.
// The only caveat is that the allocation size passed to ModChunk_Begin() is
// immediately allocated, not reserved.  Calling it with a maximum memory size
// for each model type would be hugely wasteful.  So a size equal or greater to
// the total amount requested via ModChunk_Alloc() calls in the model loading
// functions must be calculated first.

int		modChunkCount;

byte	*modChunkMemBase;
size_t	modChunkMaxSize;
size_t	modChunkCurSize;


void *ModChunk_Begin (size_t maxsize)
{
	// alocate a chunk of memory, should be exact size needed!
	modChunkCurSize = 0;
	modChunkMaxSize = maxsize;

	modChunkMemBase = malloc (maxsize);

	if (!modChunkMemBase)
		Sys_Error ("ModChunk_Begin: malloc of size %i failed, %i chunks already allocated", maxsize, modChunkCount);

	memset (modChunkMemBase, 0, maxsize);
	
	return (void *)modChunkMemBase;
}

void *ModChunk_Alloc (size_t size)
{
	// round to cacheline
	size = (size+31)&~31;

	modChunkCurSize += size;
	if (modChunkCurSize > modChunkMaxSize)
		Sys_Error ("ModChunk_Alloc: overflow");

	return (void *)(modChunkMemBase + modChunkCurSize - size);
}

size_t ModChunk_End (void)
{
	// free the remaining unused virtual memory

	modChunkCount++;
//	VID_Printf (PRINT_ALL, "modChunkCount: %i\n", modChunkCount);
	return modChunkCurSize;
}

void ModChunk_Free (void *base)
{
	if ( base )
		free (base);

	modChunkCount--;
}

/*
==============================================================================

ALIAS MODELS

==============================================================================
*/

/*
=================
Mod_ParseBlendMode
md3 skin protoshaders
=================
*/
GLenum Mod_ParseBlendMode (char *name)
{
	if (!name) return -1;

	if (!Q_strcasecmp(name, "gl_zero"))
		return GL_ZERO;
	if (!Q_strcasecmp(name, "gl_one"))
		return GL_ONE;
	if (!Q_strcasecmp(name, "gl_src_color"))
		return GL_SRC_COLOR;
	if (!Q_strcasecmp(name, "gl_one_minus_src_color"))
		return GL_ONE_MINUS_SRC_COLOR;
	if (!Q_strcasecmp(name, "gl_src_alpha"))
		return GL_SRC_ALPHA;
	if (!Q_strcasecmp(name, "gl_one_minus_src_alpha"))
		return GL_ONE_MINUS_SRC_ALPHA;
	if (!Q_strcasecmp(name, "gl_dst_alpha"))
		return GL_DST_ALPHA;
	if (!Q_strcasecmp(name, "gl_one_minus_dst_alpha"))
		return GL_ONE_MINUS_DST_ALPHA;
	if (!Q_strcasecmp(name, "gl_dst_color"))
		return GL_DST_COLOR;
	if (!Q_strcasecmp(name, "gl_one_minus_dst_color"))
		return GL_ONE_MINUS_DST_COLOR;
	if (!Q_strcasecmp(name, "gl_src_alpha_saturate"))
		return GL_SRC_ALPHA_SATURATE;
	if (!Q_strcasecmp(name, "gl_constant_color"))
		return GL_CONSTANT_COLOR;
	if (!Q_strcasecmp(name, "gl_one_minus_constant_color"))
		return GL_ONE_MINUS_CONSTANT_COLOR;
	if (!Q_strcasecmp(name, "gl_constant_alpha"))
		return GL_CONSTANT_ALPHA;
	if (!Q_strcasecmp(name, "gl_one_minus_constant_alpha"))
		return GL_ONE_MINUS_CONSTANT_ALPHA;
	else
		return -1;
}

/*
=================
Mod_GetNextParm
md3 skin protoshaders
=================
*/
qboolean Mod_GetNextParm (char **data, char **output)
{
	if (!*data) return false;

	*output = COM_ParseExt (data, false);
	if (!*data) {
		VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: EOF without closing brace\n");
		return false;
	}
	if (!*output[0])
		return false;
	if (*output[0] == '}') {
	//	VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: closing brace without data\n");
		return false;
	}
	return true;
}

/*
=================
Mod_ParseWaveFunc
md3 skin protoshaders
=================
*/
qboolean Mod_ParseWaveFunc (char **data, waveForm_t *out)
{
	char *tok=NULL;

	if (!*data || !out) return false;

	if (!Mod_GetNextParm(data, &tok))
		return false;

	if (!Q_strcasecmp(tok, "sin"))
		*out = WAVEFORM_SIN;
	else if (!Q_strcasecmp(tok, "triangle"))
		*out = WAVEFORM_TRIANGLE;
	else if (!Q_strcasecmp(tok, "square"))
		*out = WAVEFORM_SQUARE;
	else if (!Q_strcasecmp(tok, "sawtooth"))
		*out = WAVEFORM_SAWTOOTH;
	else if (!Q_strcasecmp(tok, "inversesawtooth"))
		*out = WAVEFORM_INVERSESAWTOOTH;
	else if (!Q_strcasecmp(tok, "noise"))
		*out = WAVEFORM_NOISE;
	else {
		*out = -1;
		return false;
	}
	return true;
}

/*
=================
Mod_ParseFloat
md3 skin protoshaders
=================
*/
qboolean Mod_ParseFloat (char **data, float *outnum, qboolean normalized)
{
	char *token=NULL;

	if (!*data || !outnum) return false;

	if (!Mod_GetNextParm(data, &token))
		return false;
	
	if (normalized)
		*outnum = max(min(atof(token), 1.0f), 0.0f);
	else
		*outnum = atof(token);
	return true;
}

/*
=================
Mod_ParseModelScript
skin protoshaders
=================
*/
void Mod_ParseModelScript (maliasskin_t *skin, char **data, char *dataStart, int dataSize, char *meshname, int skinnum, char *scriptname)
{
	char	*token=NULL, *token2=NULL;
	char	glowname[MD3_MAX_PATH];
	int		i;
	renderparms_t *skinParms = &skin->renderparms;

	// get the opening curly brace
	token = COM_ParseExt (data, true);
	if (!*data) {
		VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: unexpected EOF in %s.%i in %s\n", meshname, skinnum, scriptname);
		return;
	}
	if (token[0] != '{') {
		VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: found %s when expecting { in %s.%i in %s\n", token, meshname, skinnum, scriptname);
		return;
	}

	// go through all the parms
	while (*data < (dataStart + dataSize))
	{	
		token = COM_ParseExt (data, true);
		if (!*data) {
			VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: EOF in %s.%i in %s without closing brace\n", meshname, skinnum, scriptname);
			break;
		}
		if (token[0] == '}') break; // end of skin

		if (!Q_strcasecmp(token, "twosided"))
			skinParms->twosided = true;
		else if (!Q_strcasecmp(token, "alphatest")) {
			skinParms->alphatest = true;
			skinParms->noshadow = true; // also noshadow
		}
		else if (!Q_strcasecmp(token, "fullbright"))
			skinParms->fullbright = true;
		else if (!Q_strcasecmp(token, "nodraw")) {
			skinParms->nodraw = true;
			skinParms->noshadow = true; // also noshadow
		}
		else if (!Q_strcasecmp(token, "noshadow"))
			skinParms->noshadow = true;
		else if (!Q_strcasecmp(token, "nodiffuse"))
			skinParms->nodiffuse = true;
		else if (!Q_strcasecmp(token, "envmap"))
		{
			if (!Mod_ParseFloat(data, &skinParms->envmap, true)) {
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter for 'envmap' in %s.%i in %s\n", meshname, skinnum, scriptname);
				break;
			}
		}
		else if (!Q_strcasecmp(token, "alpha") || !Q_strcasecmp(token, "trans"))
		{
			if (!Mod_ParseFloat(data, &skinParms->basealpha, true)) {
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter for 'alpha' or 'trans' in %s.%i in %s\n", meshname, skinnum, scriptname);
				break;
			}
		}
		else if (!Q_strcasecmp(token, "tcmod"))
		{
			if (!Mod_GetNextParm(data, &token)) {
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter for 'tcmod' in %s.%i in %s\n", meshname, skinnum, scriptname);
				break;
			}
			if (!Q_strcasecmp(token, "translate")) {
				if (!Mod_ParseFloat(data, &skinParms->translate_x, false)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameters for 'tcmod translate' in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}
				if (!Mod_ParseFloat(data, &skinParms->translate_y, false)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter for 'tcmod translate' in %s.%i in %s\n", meshname, skinnum, scriptname);
					skinParms->translate_x = 0.0f;
					break;
				}
			}
			else if (!Q_strcasecmp(token, "rotate")) {
				if (!Mod_ParseFloat(data, &skinParms->rotate, false)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter for 'tcmod rotate' in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}
			}
			else if (!Q_strcasecmp(token, "scale")) {
				if (!Mod_ParseFloat(data, &skinParms->scale_x, false)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameters for 'tcmod scale' in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}
				if (!Mod_ParseFloat(data, &skinParms->scale_y, false)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter for 'tcmod scale' in %s.%i in %s\n", meshname, skinnum, scriptname);
					skinParms->scale_x = 1.0f;
					break;
				}
			}
			else if (!Q_strcasecmp(token, "stretch"))
			{
				if (!Mod_ParseWaveFunc(data, &skinParms->stretch.type)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing or invalid waveform for 'tcmod stretch' in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}
				for (i=0; i<4; i++)
					if (!Mod_ParseFloat(data, &skinParms->stretch.params[i], false)) {
						VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameters for 'tcmod stretch' in %s.%i in %s\n", meshname, skinnum, scriptname);
						break;
					}
			}
			else if (!Q_strcasecmp(token, "turb"))
			{	// first parm (base) is unused, so just read twice
				for (i=0; i<4; i++)
					if (!Mod_ParseFloat(data, &skinParms->turb.params[i], false)) {
						VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameters for 'tcmod turb' in %s.%i in %s\n", meshname, skinnum, scriptname);
						break;
					}
				skinParms->turb.type = WAVEFORM_SIN;
			}
			else if (!Q_strcasecmp(token, "scroll"))
			{
				if (!Mod_ParseFloat(data, &skinParms->scroll_x, false)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameters for 'tcmod scroll' in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}
				if (!Mod_ParseFloat(data, &skinParms->scroll_y, false)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter for 'tcmod scroll' in %s.%i in %s\n", meshname, skinnum, scriptname);
					skinParms->scroll_x = 0.0f;
					break;
				}
			}
			else {
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: unknown type '%s' for 'tcmod' in %s.%i in %s\n", token, meshname, skinnum, scriptname);
				break;
			}
		}
		else if (!Q_strcasecmp(token, "blendfunc"))
		{	// parse blend parm
			if (!Mod_GetNextParm(data, &token)) {
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameter(s) for 'blendfunc' in %s.%i in %s\n", meshname, skinnum, scriptname);
				break;
			}
			
			if (!Q_strcasecmp(token, "add")) {
				skinParms->blendfunc_src = GL_ONE;
				skinParms->blendfunc_dst = GL_ONE;
			}
			else if (!Q_strcasecmp(token, "filter")) {
				skinParms->blendfunc_src = GL_DST_COLOR;
				skinParms->blendfunc_dst = GL_ZERO;
			}
			else if (!Q_strcasecmp(token, "blend")) {
				skinParms->blendfunc_src = GL_SRC_ALPHA;
				skinParms->blendfunc_dst = GL_ONE_MINUS_SRC_ALPHA;
			}
			else
			{	// parse 2nd blend parm	
				if (!Mod_GetNextParm(data, &token2)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing 2nd parameter for 'blendfunc' in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}

				skinParms->blendfunc_src = Mod_ParseBlendMode (token);
				if (skinParms->blendfunc_src == -1) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: invalid src blend func in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}

				skinParms->blendfunc_dst = Mod_ParseBlendMode (token2);
				if (skinParms->blendfunc_dst == -1) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: invalid dst blend func in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}
			}
			skinParms->blend = true;
		}
		else if (!Q_strcasecmp(token, "glow"))
		{
			if (!Mod_GetNextParm(data, &token)) { // glowname
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing image name for 'glow' in %s.%i in %s\n", meshname, skinnum, scriptname);
				break;
			}
			memcpy (glowname, token, MD3_MAX_PATH);
			if (!Mod_GetNextParm(data, &token)) { // type
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing 'identity' or 'wave' for 'glow' in %s.%i in %s\n", meshname, skinnum, scriptname);
				break;
			}
			if (!Q_strcasecmp(token, "wave")) {
				if (!Mod_ParseWaveFunc(data, &skinParms->glow.type)) {
					VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing or invalid waveform for 'glow <glowskin> wave' in %s.%i in %s\n", meshname, skinnum, scriptname);
					break;
				}
				for (i=0; i<4; i++)
					if (!Mod_ParseFloat(data, &skinParms->glow.params[i], false)) {
						VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: missing parameters for 'glow <glowskin> wave' in %s.%i in %s\n", meshname, skinnum, scriptname);
						break;
					}
			}
			else if (!Q_strcasecmp(token, "identity"))
				skinParms->glow.type = -1;
			else {	// only wave or identity
				VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: unknown type '%s' for 'glow' in %s.%i in %s\n", token, meshname, skinnum, scriptname);
				break;
			}
			skin->glowimage = R_FindImage (glowname, it_skin);
			if (skin->glowimage)
				memcpy (skin->glowname, glowname, MD3_MAX_PATH);
		}
		else {	// invalid parameter
			VID_Printf (PRINT_ALL, S_COLOR_YELLOW"Mod_ParseModelScript: unknown parameter '%s' in %s.%i in %s\n", token, meshname, skinnum, scriptname);
			break;
		}
	}
}

/*
=================
Mod_SetRenderParmsDefaults
md3 skin protoshaders
=================
*/
void Mod_SetRenderParmsDefaults (renderparms_t *parms)
{
	parms->twosided = false;
	parms->alphatest = false;
	parms->fullbright = false;
	parms->nodraw = false;
	parms->noshadow = false;
	parms->nodiffuse = false;
	parms->envmap = 0.0f;
	parms->basealpha = 1.0f;
	parms->blend = false;
	parms->blendfunc_src = -1;
	parms->blendfunc_dst = -1;
	parms->glow.type = -1;
	parms->translate_x = 0.0f;
	parms->translate_y = 0.0f;
	parms->rotate = 0.0f;
	parms->scale_x = 1.0f;
	parms->scale_y = 1.0f;
	parms->stretch.type = -1;
	parms->turb.type = -1;
	parms->scroll_x = 0.0f;
	parms->scroll_y = 0.0f;
}

/*
=================
Mod_LoadModelScript
md3 skin protoshaders
=================
*/
void Mod_LoadModelScript (model_t *mod, maliasmodel_t *aliasmod)
{
	char		scriptname[MAX_QPATH];
	char		*buf, *parse_data, *token=NULL, *token2=NULL;
	int			buf_size, i, j; //, k;
	qboolean	skinname_found;
	renderparms_t	*skinParms;

	// set defaults
	for (i=0; i < aliasmod->num_meshes; i++)
		for (j=0; j < aliasmod->meshes[i].num_skins; j++) {
			Mod_SetRenderParmsDefaults (&aliasmod->meshes[i].skins[j].renderparms);
			aliasmod->meshes[i].skins[j].glowimage = NULL;
		}

	COM_StripExtension (mod->name, scriptname, sizeof(scriptname));
//	strncat (scriptname, ".script");
	Q_strncatz (scriptname, ".script", sizeof(scriptname));
	buf_size = FS_LoadFile (scriptname, &buf);

	if (buf_size < 1)
		return;
	//else
	//	VID_Printf (PRINT_ALL, "Mod_LoadModelScript: loaded model script for %s with %i meshes.\n", mod->name, aliasmod->num_meshes);
	
	for (i=0; i<aliasmod->num_meshes; i++)
	{
		for (j=0; j<aliasmod->meshes[i].num_skins; j++)
		{
			skinParms = &aliasmod->meshes[i].skins[j].renderparms;

			// search the script file for that meshname
			skinname_found = false;
			parse_data = buf;  // copy data postion
			while (parse_data < (buf + buf_size))
			{
				token = COM_Parse (&parse_data);
				if (!parse_data) break;
				if (!token) break;
				
				if ( !Q_strncasecmp(token, aliasmod->meshes[i].name, strlen(aliasmod->meshes[i].name))
					&& (atoi(COM_FileExtension(token)) == j)) {
					skinname_found = true;
					break;
				}
			}
			// then if that skinname is found, load the parms for that skin
			if (skinname_found)
				Mod_ParseModelScript (&aliasmod->meshes[i].skins[j], &parse_data, buf, buf_size, aliasmod->meshes[i].name, j, scriptname);
		}
	}
	FS_FreeFile(buf);

	// check if model has any alpha surfaces for sorting
	for (i=0; i < aliasmod->num_meshes; i++)
		for (j=0; j < aliasmod->meshes[i].num_skins; j++)
			if (aliasmod->meshes[i].skins[j].renderparms.blend || aliasmod->meshes[i].skins[j].renderparms.basealpha < 1.0f)
				mod->hasAlpha = true;

	//VID_Printf (PRINT_ALL, "Mod_LoadModelScript: loaded model script for %s with %i bytes per skin.\n", mod->name, sizeof(renderparms_t));	
}

#ifndef MD2_AS_MD3

#ifdef PROJECTION_SHADOWS // projection shadows from BeefQuake R6
/*
=================
Mod_FindMD2TriangleWithEdge
=================
*/
signed int Mod_FindMD2TriangleWithEdge (short p1, short p2, dmd2triangle_t *ignore, dmd2_t *hdr)
{
	dmd2triangle_t *tris = (dmd2triangle_t *)((unsigned char*)hdr + hdr->ofs_tris);
	int i, match, count;

	count = 0;
	match = -1;

	for (i=0; i<hdr->num_tris; i++, tris++)
	{
		if ( (tris->index_xyz[0] == p2 && tris->index_xyz[1] == p1)
			|| (tris->index_xyz[1] == p2 && tris->index_xyz[2] == p1)
			|| (tris->index_xyz[2] == p2 && tris->index_xyz[0] == p1) ) {
			if (tris != ignore)
				match = i;
			count++;
		}
		else if ( (tris->index_xyz[0] == p1 && tris->index_xyz[1] == p2)
			|| (tris->index_xyz[1] == p1 && tris->index_xyz[2] == p2)
			|| (tris->index_xyz[2] == p1 && tris->index_xyz[0] == p2) )
			count++;
	}

	if (count > 2)
		match = -1;
	return match;
}


/*
=================
Mod_BuildMD2TriangleNeighbors
=================
*/
void Mod_BuildMD2TriangleNeighbors (model_t *mod)
{
	dmd2_t		*hdr = (dmd2_t *)mod->extradata;
	dmd2triangle_t *tris = (dmd2triangle_t *)((unsigned char*)hdr + hdr->ofs_tris);
	int			i, *n;

	for (i=0, n=mod->edge_tri; i<hdr->num_tris; i++, n+=3, tris++)
	{
		n[0] = Mod_FindMD2TriangleWithEdge(tris->index_xyz[0], tris->index_xyz[1], tris, hdr);
		n[1] = Mod_FindMD2TriangleWithEdge(tris->index_xyz[1], tris->index_xyz[2], tris, hdr);
		n[2] = Mod_FindMD2TriangleWithEdge(tris->index_xyz[2], tris->index_xyz[0], tris, hdr);
	}
}
#endif // end projection shadows from BeefQuake R6


/*
=================
Mod_GetAllocSizeMD2Old

Calc exact alloc size for MD2 in memory
=================
*/
size_t Mod_GetAllocSizeMD2Old (model_t *mod, void *buffer)
{
	dmd2_t				*pinmodel;
	size_t				allocSize;
	
	pinmodel = (dmd2_t *)buffer;
	allocSize = (LittleLong(pinmodel->ofs_end) + 31) & ~31;
	return allocSize;
}


/*
=================
Mod_LoadAliasMD2ModelOld
=================
*/
void Mod_LoadAliasMD2ModelOld (model_t *mod, void *buffer)
{
	int					i, j;
	dmd2_t				*pinmodel, *pheader;
	dmd2coord_t			*pinst, *poutst;
	dmd2triangle_t		*pintri, *pouttri;
	dmd2frame_t			*pinframe, *poutframe;
	int					*pincmd, *poutcmd;
	int					version;

	pinmodel = (dmd2_t *)buffer;

	version = LittleLong (pinmodel->version);
	if (version != ALIAS_VERSION)
		VID_Error (ERR_DROP, "%s has wrong version number (%i should be %i)",
				 mod->name, version, ALIAS_VERSION);

//	pheader = Hunk_Alloc (LittleLong(pinmodel->ofs_end));
	pheader = ModChunk_Alloc (LittleLong(pinmodel->ofs_end));
	
	// byte swap the header fields and sanity check
	for (i=0; i<sizeof(dmd2_t)/4; i++)
		((int *)pheader)[i] = LittleLong (((int *)buffer)[i]);

	if (pheader->skinheight > MAX_LBM_HEIGHT)
		VID_Error (ERR_DROP, "model %s has a skin taller than %d", mod->name,
				   MAX_LBM_HEIGHT);

	if (pheader->num_xyz <= 0)
		VID_Error (ERR_DROP, "model %s has no vertices", mod->name);

	if (pheader->num_xyz > MAX_VERTS)
		VID_Error (ERR_DROP, "model %s has too many vertices", mod->name);

	if (pheader->num_st <= 0)
		VID_Error (ERR_DROP, "model %s has no st vertices", mod->name);

	if (pheader->num_tris <= 0)
		VID_Error (ERR_DROP, "model %s has no triangles", mod->name);

	if (pheader->num_frames <= 0)
		VID_Error (ERR_DROP, "model %s has no frames", mod->name);

	//
	// load base s and t vertices (not used in gl version)
	//
	pinst = (dmd2coord_t *) ((byte *)pinmodel + pheader->ofs_st);
	poutst = (dmd2coord_t *) ((byte *)pheader + pheader->ofs_st);

	for (i=0; i<pheader->num_st; i++)
	{
		poutst[i].s = LittleShort (pinst[i].s);
		poutst[i].t = LittleShort (pinst[i].t);
	}

	//
	// load triangle lists
	//
	pintri = (dmd2triangle_t *) ((byte *)pinmodel + pheader->ofs_tris);
	pouttri = (dmd2triangle_t *) ((byte *)pheader + pheader->ofs_tris);

	for (i=0; i<pheader->num_tris; i++)
	{
		for (j=0; j<3; j++)
		{
			pouttri[i].index_xyz[j] = LittleShort (pintri[i].index_xyz[j]);
			pouttri[i].index_st[j] = LittleShort (pintri[i].index_st[j]);
		}
	}

	//
	// load the frames
	//
	for (i=0; i<pheader->num_frames; i++)
	{
		pinframe = (dmd2frame_t *) ((byte *)pinmodel 
			+ pheader->ofs_frames + i * pheader->framesize);
		poutframe = (dmd2frame_t *) ((byte *)pheader 
			+ pheader->ofs_frames + i * pheader->framesize);

		memcpy (poutframe->name, pinframe->name, sizeof(poutframe->name));
		for (j=0 ; j<3 ; j++)
		{
			poutframe->scale[j] = LittleFloat (pinframe->scale[j]);
			poutframe->translate[j] = LittleFloat (pinframe->translate[j]);
		}
		// verts are all 8 bit, so no swapping needed
		memcpy (poutframe->verts, pinframe->verts, 
			pheader->num_xyz*sizeof(dmd2vertex_t));
	}

	//
	// load the glcmds
	//
	pincmd = (int *) ((byte *)pinmodel + pheader->ofs_glcmds);
	poutcmd = (int *) ((byte *)pheader + pheader->ofs_glcmds);
	for (i=0; i<pheader->num_glcmds; i++)
		poutcmd[i] = LittleLong (pincmd[i]);

	// register all skins
	memcpy ((char *)pheader + pheader->ofs_skins, (char *)pinmodel + pheader->ofs_skins,
		pheader->num_skins*MAX_SKINNAME);
	for (i=0; i<pheader->num_skins; i++)
	{
		mod->skins[0][i] = R_FindImage ((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME, it_skin);
	}

	mod->mins[0] = -32;
	mod->mins[1] = -32;
	mod->mins[2] = -32;
	mod->maxs[0] = 32;
	mod->maxs[1] = 32;
	mod->maxs[2] = 32;

#ifdef PROJECTION_SHADOWS // projection shadows from BeefQuake R6
	mod->edge_tri = malloc(sizeof(int) * pheader->num_tris * 3);
	Mod_BuildMD2TriangleNeighbors (mod);
#endif // end projection shadows from BeefQuake R6

	mod->hasAlpha = false;
//	Mod_LoadMD2ModelScript (mod, pheader); // md2 skin scripting

	mod->type = mod_md2;
}
#endif // MD2_AS_MD3


//Harven++ MD3

//
// Some Vic code here not fully used
//

/*
===============
Mod_FindTriangleWithEdge
===============
*/
int Mod_FindTriangleWithEdge (maliasmesh_t *mesh, index_t p1, index_t p2, int ignore)
{
	int		i, match, count;
	index_t *indexes;

	count = 0;
	match = -1;
	
	for (i=0, indexes=mesh->indexes; i<mesh->num_tris; i++, indexes+=3)
	{
		if ( (indexes[0] == p2 && indexes[1] == p1)
			|| (indexes[1] == p2 && indexes[2] == p1)
			|| (indexes[2] == p2 && indexes[0] == p1) ) {
			if (i != ignore)
				match = i;
			count++;
		}
		else if ( (indexes[0] == p1 && indexes[1] == p2)
			|| (indexes[1] == p1 && indexes[2] == p2)
			|| (indexes[2] == p1 && indexes[0] == p2) )
			count++;
	}

	// detect edges shared by three triangles and make them seams
	if (count > 2)
		match = -1;

	return match;
}

/*
===============
Mod_BuildTriangleNeighbors
===============
*/
void Mod_BuildTriangleNeighbors (maliasmesh_t *mesh)
{
	int		i, *n;
	index_t	*index;

	for (i=0, n=mesh->trneighbors, index=mesh->indexes; i<mesh->num_tris; i++, n+=3, index+=3)
	{
		n[0] = Mod_FindTriangleWithEdge (mesh, index[0], index[1], i);
		n[1] = Mod_FindTriangleWithEdge (mesh, index[1], index[2], i);
		n[2] = Mod_FindTriangleWithEdge (mesh, index[2], index[0], i);
	}
}


#ifdef MD2_AS_MD3
/*
=================
NormalToLatLong
=================
*/
void NormalToLatLong (const vec3_t normal, byte bytes[2])
{
	int		lat, lng;

	if (normal[0] == 0 && normal[1] == 0){
		if (normal[2] > 0){
			// Lattitude = 0, Longitude = 0
			bytes[0] = 0;
			bytes[1] = 0;
		}
		else {
			// Lattitude = 0, Longitude = 128
			bytes[0] = 128;
			bytes[1] = 0;
		}
	}
	else {
		lat = RAD2DEG(atan2(normal[1], normal[0])) * (255.0 / 360.0);
		lng = RAD2DEG(acos(normal[2])) * (255.0 / 360.0);

		bytes[0] = lng & 0xff;
		bytes[1] = lat & 0xff;
	}
}


int					md2IndRemap[MD2_MAX_TRIANGLES*3];
unsigned int		md2TempIndex[MD2_MAX_TRIANGLES*3];
unsigned int		md2TempStIndex[MD2_MAX_TRIANGLES*3];
/*
=================
Mod_GetAllocSizeMD2New
Calc exact alloc size for MD2 in memory
=================
*/
size_t Mod_GetAllocSizeMD2New (model_t *mod, void *buffer)
{
	int					i, j, numFrames, numMeshes, numTris, numIndex, numVerts, numSkins;
	dmd2_t				*pinmodel;
	dmd2triangle_t		*pintri;
//	int					md2IndRemap[MAX_TRIANGLES*3];
//	unsigned int		md2TempIndex[MAX_TRIANGLES*3], md2TempStIndex[MAX_TRIANGLES*3];
	size_t				headerSize, meshSize, indexSize, coordSize, frameSize, vertSize, trNeighborsSize, skinSize;
	size_t				allocSize;
	
	pinmodel = (dmd2_t *)buffer;

	numFrames = LittleLong(pinmodel->num_frames);
	numMeshes = 1;
	numTris = LittleLong(pinmodel->num_tris);

	// count unique verts
//	numVerts = LittleLong(pinmodel->num_xyz);
	numVerts = 0;
	numIndex = numTris * 3;
	pintri = (dmd2triangle_t *)((byte *)pinmodel + LittleLong(pinmodel->ofs_tris));

	for (i=0; i < numTris; i++)
	{
		md2TempIndex[i*3+0] = (unsigned)LittleShort(pintri[i].index_xyz[0]);
		md2TempIndex[i*3+1] = (unsigned)LittleShort(pintri[i].index_xyz[1]);
		md2TempIndex[i*3+2] = (unsigned)LittleShort(pintri[i].index_xyz[2]);

		md2TempStIndex[i*3+0] = (unsigned)LittleShort(pintri[i].index_st[0]);
		md2TempStIndex[i*3+1] = (unsigned)LittleShort(pintri[i].index_st[1]);
		md2TempStIndex[i*3+2] = (unsigned)LittleShort(pintri[i].index_st[2]);
	}
	memset(md2IndRemap, -1, MD2_MAX_TRIANGLES * 3 * sizeof(int));
	for (i=0; i < numIndex; i++)
	{
		if (md2IndRemap[i] != -1)	continue;
		for (j=0; j < numIndex; j++)
		{
			if (j == i)	continue;
			if ((md2TempIndex[j] == md2TempIndex[i]) && (md2TempStIndex[j] == md2TempStIndex[i]))
				md2IndRemap[j] = i;
		}
	}
	for (i=0; i < numIndex; i++)
	{
		if (md2IndRemap[i] == -1)	numVerts++;
	}

	numSkins = max(LittleLong(pinmodel->num_skins), 1);	// hack because player models have no skin refs
	
	// calc sizes rounded to cacheline
	headerSize = (sizeof(maliasmodel_t) + 31) & ~31;
	meshSize = ((sizeof(maliasmesh_t) * numMeshes) + 31) & ~31;
	indexSize = ((sizeof(index_t) * numTris * 3) + 31) & ~31;
	coordSize = ((sizeof(maliascoord_t) * numVerts) + 31) & ~31;
	frameSize = ((sizeof(maliasframe_t) * numFrames) + 31) & ~31;
	vertSize = ((numFrames * numVerts * sizeof(maliasvertex_t)) + 31) & ~31;
	trNeighborsSize = ((sizeof(int) * numTris * 3) + 31) & ~31;
	skinSize = ((sizeof(maliasskin_t) * numSkins) + 31) & ~31;

	allocSize = headerSize + meshSize + indexSize + coordSize + frameSize + vertSize + trNeighborsSize + skinSize;
	
	return allocSize;
}


/*
=================
Mod_LoadAliasMD2ModelNew
Based on md2 loading code in Q2E 0.40

Mod_GetAllocSizeMD2() must be called first to init
index and remap arrays.
=================
*/
void Mod_LoadAliasMD2ModelNew (model_t *mod, void *buffer)
{
	int					i, j;
	int					version;
	dmd2_t				*pinmodel;
	dmd2frame_t			*pinframe;
	dmd2triangle_t		*pintri;
	dmd2coord_t			*pincoord;
	maliasmodel_t		*poutmodel;
	maliasframe_t		*poutframe;
	maliasmesh_t		*poutmesh;
	maliasskin_t		*poutskin;
	maliasvertex_t		*poutvert;
	maliascoord_t		*poutcoord;
	index_t				*poutindex;
	char				name[MD3_MAX_PATH];
//	int					md2IndRemap[MD2_MAX_TRIANGLES*3];
//	unsigned			md2TempIndex[MD2_MAX_TRIANGLES*3], md2TempStIndex[MD2_MAX_TRIANGLES*3];
	int					numIndices, numVertices;
	double				skinWidth, skinHeight;
	vec3_t				normal;

	pinmodel = (dmd2_t *)buffer;

//	poutmodel = Hunk_Alloc (sizeof(maliasmodel_t));
	poutmodel = ModChunk_Alloc (sizeof(maliasmodel_t));

	// byte swap the header fields and sanity check
	version = LittleLong (pinmodel->version);
	if (version != MD2_ALIAS_VERSION) {
		VID_Error (ERR_DROP, "%s has wrong version number (%i should be %i)",
				 mod->name, version, MD2_ALIAS_VERSION);
	}

	poutmodel->num_frames = LittleLong ( pinmodel->num_frames );
	if (poutmodel->num_frames > MD2_MAX_FRAMES || poutmodel->num_frames <= 0)
		VID_Error (ERR_DROP, "model %s has invalid number of frames (%i)", mod->name, poutmodel->num_frames);

	poutmodel->num_tags = 0;
	poutmodel->num_meshes = 1;

	skinWidth = 1.0 / (double)LittleLong(pinmodel->skinwidth);
	skinHeight = 1.0 / (double)LittleLong(pinmodel->skinheight);

	//
	// load mesh info
	//
//	poutmesh = poutmodel->meshes = Hunk_Alloc(sizeof(maliasmesh_t));
	poutmesh = poutmodel->meshes = ModChunk_Alloc(sizeof(maliasmesh_t));

	Com_sprintf(poutmesh->name, sizeof(poutmesh->name), "md2mesh"); // mesh name in script must match this

	poutmesh->num_tris = LittleLong(pinmodel->num_tris);
	if (poutmesh->num_tris > MD2_MAX_TRIANGLES || poutmesh->num_tris <= 0)
		VID_Error (ERR_DROP, "model %s has invalid number of triangles (%i)", mod->name, poutmesh->num_tris);

	poutmesh->num_verts = LittleLong(pinmodel->num_xyz);
	if (poutmesh->num_verts > MD2_MAX_VERTS || poutmesh->num_verts <= 0)
		VID_Error (ERR_DROP, "model %s has invalid number of vertices (%i)", mod->name, poutmesh->num_verts);

	poutmesh->num_skins = LittleLong(pinmodel->num_skins);
	if (poutmesh->num_skins > MD2_MAX_SKINS || poutmesh->num_skins < 0)
		Com_Error(ERR_DROP, "model %s has invalid number of skins (%i)", mod->name, poutmesh->num_skins);

	pintri = (dmd2triangle_t *)((byte *)pinmodel + LittleLong(pinmodel->ofs_tris));

//	DO NOT DELETE!!!  Needed if Mod_GetAllocSizeMD2() is removed!
/*	for (i=0; i < poutmesh->num_tris; i++)
	{
		md2TempIndex[i*3+0] = (unsigned)LittleShort(pintri[i].index_xyz[0]);
		md2TempIndex[i*3+1] = (unsigned)LittleShort(pintri[i].index_xyz[1]);
		md2TempIndex[i*3+2] = (unsigned)LittleShort(pintri[i].index_xyz[2]);

		md2TempStIndex[i*3+0] = (unsigned)LittleShort(pintri[i].index_st[0]);
		md2TempStIndex[i*3+1] = (unsigned)LittleShort(pintri[i].index_st[1]);
		md2TempStIndex[i*3+2] = (unsigned)LittleShort(pintri[i].index_st[2]);
	}*/

	//
	// build list of unique vertices
	//
	numIndices = poutmesh->num_tris * 3;
	numVertices = 0;

//	poutindex = poutmesh->indexes = Hunk_Alloc( sizeof(index_t) * poutmesh->num_tris * 3 );
	poutindex = poutmesh->indexes = ModChunk_Alloc(sizeof(index_t) * poutmesh->num_tris * 3 );

//	DO NOT DELETE!!!  Needed if Mod_GetAllocSizeMD2() is removed!
/*	memset(md2IndRemap, -1, MD2_MAX_TRIANGLES * 3 * sizeof(int));

	for (i=0; i < numIndices; i++)
	{
		if (md2IndRemap[i] != -1)
			continue;
		for (j=0; j < numIndices; j++)
		{
			if (j == i)
				continue;
			if ((md2TempIndex[j] == md2TempIndex[i]) && (md2TempStIndex[j] == md2TempStIndex[i]))
				md2IndRemap[j] = i;
		}
	}*/

	//
	// count unique vertices
	//
	for (i=0; i < numIndices; i++)
	{
		if (md2IndRemap[i] != -1)
			continue;
		poutindex[i] = numVertices++;
		md2IndRemap[i] = i;
	}
	poutmesh->num_verts = numVertices;

	//
	// remap remaining indices
	//
	for (i=0; i < numIndices; i++) {
		if (md2IndRemap[i] != i)
			poutindex[i] = poutindex[md2IndRemap[i]];
	}

	//
	// load base S and T vertices
	//
	pincoord = (dmd2coord_t *)((byte *)pinmodel + LittleLong(pinmodel->ofs_st));
//	poutcoord = poutmesh->stcoords = Hunk_Alloc ( sizeof(maliascoord_t) * poutmesh->num_verts );
	poutcoord = poutmesh->stcoords = ModChunk_Alloc (sizeof(maliascoord_t) * poutmesh->num_verts);

	for (i=0; i < numIndices; i++) {
		poutcoord[poutindex[i]].st[0] = (float)(((double)LittleShort(pincoord[md2TempStIndex[md2IndRemap[i]]].s) + 0.5) * skinWidth);
		poutcoord[poutindex[i]].st[1] = (float)(((double)LittleShort(pincoord[md2TempStIndex[md2IndRemap[i]]].t) + 0.5) * skinHeight);
	}

	//
	// load the frames
	//
//	poutframe = poutmodel->frames = Hunk_Alloc ( sizeof(maliasframe_t) * poutmodel->num_frames );
//	poutvert = poutmesh->vertexes = Hunk_Alloc ( poutmodel->num_frames * poutmesh->num_verts * sizeof(maliasvertex_t) );
	poutframe = poutmodel->frames = ModChunk_Alloc (sizeof(maliasframe_t) * poutmodel->num_frames);
	poutvert = poutmesh->vertexes = ModChunk_Alloc (poutmodel->num_frames * poutmesh->num_verts * sizeof(maliasvertex_t));

	mod->radius = 0;
	ClearBounds(mod->mins, mod->maxs);

	for (i=0; i < poutmodel->num_frames; i++, pinframe++, poutframe++, poutvert += numVertices)
	{
		pinframe = (dmd2frame_t *)((byte *)pinmodel + LittleLong(pinmodel->ofs_frames) + i*LittleLong(pinmodel->framesize));

		poutframe->scale[0] = LittleFloat(pinframe->scale[0]);
		poutframe->scale[1] = LittleFloat(pinframe->scale[1]);
		poutframe->scale[2] = LittleFloat(pinframe->scale[2]);

		poutframe->translate[0] = LittleFloat(pinframe->translate[0]);
		poutframe->translate[1] = LittleFloat(pinframe->translate[1]);
		poutframe->translate[2] = LittleFloat(pinframe->translate[2]);

		VectorCopy (poutframe->translate, poutframe->mins);
		VectorMA (poutframe->translate, 255, poutframe->scale, poutframe->maxs);

		poutframe->radius = RadiusFromBounds(poutframe->mins, poutframe->maxs);

		mod->radius = max ( mod->radius, poutframe->radius );
		AddPointToBounds(poutframe->mins, mod->mins, mod->maxs);
		AddPointToBounds(poutframe->maxs, mod->mins, mod->maxs);

		//
		// load the vertexes and normals
		//
		for (j=0; j < numIndices; j++)
		{
			poutvert[poutindex[j]].xyz[0] = (short)pinframe->verts[md2TempIndex[md2IndRemap[j]]].v[0];
			poutvert[poutindex[j]].xyz[1] = (short)pinframe->verts[md2TempIndex[md2IndRemap[j]]].v[1];
			poutvert[poutindex[j]].xyz[2] = (short)pinframe->verts[md2TempIndex[md2IndRemap[j]]].v[2];

			poutvert[poutindex[j]].lightnormalindex = pinframe->verts[md2TempIndex[md2IndRemap[j]]].lightnormalindex;

			normal[0] = r_avertexnormals[poutvert[poutindex[j]].lightnormalindex][0];
			normal[1] = r_avertexnormals[poutvert[poutindex[j]].lightnormalindex][1];
			normal[2] = r_avertexnormals[poutvert[poutindex[j]].lightnormalindex][2];

			NormalToLatLong(normal, poutvert[poutindex[j]].normal);			
		}
	}

	//
	// build triangle neighbors
	//
//	poutmesh->trneighbors = Hunk_Alloc ( sizeof(int) * poutmesh->num_tris * 3 );
	poutmesh->trneighbors = ModChunk_Alloc (sizeof(int) * poutmesh->num_tris * 3);
	Mod_BuildTriangleNeighbors (poutmesh);

	//
	// register all skins
	//
	if (poutmesh->num_skins <= 0) // hack for player models with no skin refs
	{
	//	poutskin = poutmesh->skins = Hunk_Alloc ( sizeof(maliasskin_t) * 1 );
		poutskin = poutmesh->skins = ModChunk_Alloc (sizeof(maliasskin_t) * 1);
		poutmesh->num_skins = 1;
		Com_sprintf(name, sizeof(name), "players/male/grunt.pcx");
		memcpy(poutskin->name, name, MD3_MAX_PATH);
		Com_sprintf(poutskin->glowname, sizeof(poutskin->glowname), "\0"); // set null glowskin
		mod->skins[0][0] = R_FindImage (name, it_skin);
	}
	else
	{
	//	poutskin = poutmesh->skins = Hunk_Alloc ( sizeof(maliasskin_t) * poutmesh->num_skins );
		poutskin = poutmesh->skins = ModChunk_Alloc (sizeof(maliasskin_t) * poutmesh->num_skins);
		for (i=0; i < poutmesh->num_skins; i++, poutskin++)
		{
			memcpy(name, ((char *)pinmodel + LittleLong(pinmodel->ofs_skins) + i*MD2_MAX_SKINNAME), MD3_MAX_PATH);
			memcpy(poutskin->name, name, MD3_MAX_PATH);
			Com_sprintf(poutskin->glowname, sizeof(poutskin->glowname), "\0"); // set null glowskin
			mod->skins[0][i] = R_FindImage (name, it_skin);
		}
	}

	mod->hasAlpha = false;
	Mod_LoadModelScript (mod, poutmodel); // md3 skin scripting

	//if (mod->hasAlpha)
	//	VID_Printf (PRINT_ALL, "Mod_LoadAliasMD2Model: model %s has trans mesh\n", mod->name);

	mod->type = mod_alias;
}
#endif // MD2_AS_MD3


//
// And here some Vic and some my (Harven)
//

/*
=================
Mod_GetAllocSizeMD3
Calc exact alloc size for MD3 in memory
=================
*/
size_t Mod_GetAllocSizeMD3 (model_t *mod, void *buffer)
{
	int					i, numFrames, numTags, numMeshes, numSkins, numTris, numVerts;
	dmd3_t				*pinmodel;
	dmd3mesh_t			*pinmesh;
	size_t				headerSize, frameSize, tagSize, meshSize;
	size_t				skinSize=0, indexSize=0, coordSize=0, vertSize=0, trNeighborsSize=0;
	size_t				allocSize;
	
	pinmodel = (dmd3_t *)buffer;
	numFrames = LittleLong(pinmodel->num_frames);
	numTags = LittleLong(pinmodel->num_tags);
	numMeshes = LittleLong(pinmodel->num_meshes);
	
	// calc sizes rounded to cacheline
	headerSize = (sizeof(maliasmodel_t) + 31) & ~31;
	frameSize = ((sizeof(maliasframe_t) * numFrames) + 31) & ~31;
	tagSize = ((sizeof(maliastag_t) * numFrames * numTags) + 31) & ~31;
	meshSize = ((sizeof(maliasmesh_t) * numMeshes) + 31) & ~31;

	pinmesh = (dmd3mesh_t *)((byte *)pinmodel + LittleLong (pinmodel->ofs_meshes));
	for (i=0; i < numMeshes; i++)
	{
		numSkins = LittleLong(pinmesh->num_skins);
		numTris = LittleLong(pinmesh->num_tris);
		numVerts = LittleLong(pinmesh->num_verts);

		skinSize += ((sizeof(maliasskin_t) * numSkins) + 31) & ~31;
		indexSize += ((sizeof(index_t) * numTris * 3) + 31) & ~31;
		coordSize += ((sizeof(maliascoord_t) * numVerts) + 31) & ~31;
		vertSize += ((numFrames * numVerts * sizeof(maliasvertex_t)) + 31) & ~31;
		trNeighborsSize += ((sizeof(int) * numTris * 3) + 31) & ~31;

		pinmesh = (dmd3mesh_t *)((byte *)pinmesh + LittleLong (pinmesh->meshsize));
	}
	allocSize = headerSize + frameSize + tagSize + meshSize + skinSize + indexSize + coordSize + vertSize + trNeighborsSize;
	
	return allocSize;
}


/*
=================
Mod_LoadAliasMD3Model
=================
*/
void Mod_LoadAliasMD3Model (model_t *mod, void *buffer)
{
	int					version, maxdotindex, i, j, l, k;
	dmd3_t				*pinmodel;
	dmd3frame_t			*pinframe;
	dmd3tag_t			*pintag;
	dmd3mesh_t			*pinmesh;
	dmd3skin_t			*pinskin;
	dmd3coord_t			*pincoord;
	dmd3vertex_t		*pinvert;
	index_t				*pinindex, *poutindex;
	maliasvertex_t		*poutvert;
	maliascoord_t		*poutcoord;
	maliasskin_t		*poutskin;
	maliasmesh_t		*poutmesh;
	maliastag_t			*pouttag;
	maliasframe_t		*poutframe;
	maliasmodel_t		*poutmodel;
	char				name[MD3_MAX_PATH];
	float				lat, lng, maxdot;
	vec3_t				normal;

	pinmodel = ( dmd3_t * )buffer;
	version = LittleLong( pinmodel->version );

	if ( version != MD3_ALIAS_VERSION )
	{
		VID_Error (ERR_DROP, "%s has wrong version number (%i should be %i)",
			mod->name, version, MD3_ALIAS_VERSION);
	}

//	poutmodel = Hunk_Alloc (sizeof(maliasmodel_t));
	poutmodel = ModChunk_Alloc (sizeof(maliasmodel_t));

	// byte swap the header fields and sanity check
	poutmodel->num_frames = LittleLong ( pinmodel->num_frames );
	poutmodel->num_tags = LittleLong ( pinmodel->num_tags );
	poutmodel->num_meshes = LittleLong ( pinmodel->num_meshes );

	if ( poutmodel->num_frames <= 0 )
		VID_Error ( ERR_DROP, "model %s has no frames", mod->name );
	else if ( poutmodel->num_frames > MD3_MAX_FRAMES )
		VID_Error ( ERR_DROP, "model %s has too many frames", mod->name );

	if ( poutmodel->num_tags > MD3_MAX_TAGS )
		VID_Error ( ERR_DROP, "model %s has too many tags", mod->name );
	else if ( poutmodel->num_tags < 0 )
		VID_Error ( ERR_DROP, "model %s has invalid number of tags", mod->name );

	if ( poutmodel->num_meshes <= 0 )
		VID_Error ( ERR_DROP, "model %s has no meshes", mod->name );
	else if ( poutmodel->num_meshes > MD3_MAX_MESHES )
		VID_Error ( ERR_DROP, "model %s has too many meshes", mod->name );

	//
	// load the frames
	//
	pinframe = (dmd3frame_t *)((byte *)pinmodel + LittleLong (pinmodel->ofs_frames));
//	poutframe = poutmodel->frames = Hunk_Alloc ( sizeof(maliasframe_t) * poutmodel->num_frames);
	poutframe = poutmodel->frames = ModChunk_Alloc ( sizeof(maliasframe_t) * poutmodel->num_frames);

	mod->radius = 0;
	ClearBounds ( mod->mins, mod->maxs );

	for ( i = 0; i < poutmodel->num_frames; i++, pinframe++, poutframe++ )
	{
		for ( j = 0; j < 3; j++ )
		{
			poutframe->mins[j] = LittleFloat ( pinframe->mins[j] );
			poutframe->maxs[j] = LittleFloat ( pinframe->maxs[j] );
			poutframe->scale[j] = MD3_XYZ_SCALE;
			poutframe->translate[j] = LittleFloat ( pinframe->translate[j] );
		}

		poutframe->radius = LittleFloat ( pinframe->radius );

		mod->radius = max ( mod->radius, poutframe->radius );
		AddPointToBounds ( poutframe->mins, mod->mins, mod->maxs );
		AddPointToBounds ( poutframe->maxs, mod->mins, mod->maxs );
	}

	//
	// load the tags
	//
	pintag = (dmd3tag_t *)((byte *)pinmodel + LittleLong (pinmodel->ofs_tags));
//	pouttag = poutmodel->tags = Hunk_Alloc( sizeof(maliastag_t) * poutmodel->num_frames * poutmodel->num_tags);
	pouttag = poutmodel->tags = ModChunk_Alloc(sizeof(maliastag_t) * poutmodel->num_frames * poutmodel->num_tags);

	for ( i = 0; i < poutmodel->num_frames; i++ )
	{
		for ( l = 0; l < poutmodel->num_tags; l++, pintag++, pouttag++ )
		{
			memcpy ( pouttag->name, pintag->name, MD3_MAX_PATH );
			for ( j = 0; j < 3; j++ ) {
				pouttag->orient.origin[j] = LittleFloat ( pintag->orient.origin[j] );
				pouttag->orient.axis[0][j] = LittleFloat ( pintag->orient.axis[0][j] );
				pouttag->orient.axis[1][j] = LittleFloat ( pintag->orient.axis[1][j] );
				pouttag->orient.axis[2][j] = LittleFloat ( pintag->orient.axis[2][j] );
			}
		/*	VID_Printf (PRINT_ALL, "Tag origin: (%f %f %f) axis X: (%f %f %f) Y: (%f %f %f) Z: (%f %f %f)\n",
						pouttag->orient.origin[0], pouttag->orient.origin[1], pouttag->orient.origin[2],
						pouttag->orient.axis[0][0], pouttag->orient.axis[0][1], pouttag->orient.axis[0][2],
						pouttag->orient.axis[1][0], pouttag->orient.axis[1][1], pouttag->orient.axis[1][2],
						pouttag->orient.axis[2][0], pouttag->orient.axis[2][1], pouttag->orient.axis[2][2]);
		*/
		}
	}

	//
	// load the meshes
	//
	pinmesh = (dmd3mesh_t *)((byte *)pinmodel + LittleLong (pinmodel->ofs_meshes));
//	poutmesh = poutmodel->meshes = Hunk_Alloc ( sizeof(maliasmesh_t)*poutmodel->num_meshes);
	poutmesh = poutmodel->meshes = ModChunk_Alloc (sizeof(maliasmesh_t)*poutmodel->num_meshes);

	for ( i = 0; i < poutmodel->num_meshes; i++, poutmesh++)
	{
		memcpy (poutmesh->name, pinmesh->name, MD3_MAX_PATH);

		if ( strncmp ((const char *)pinmesh->id, "IDP3", 4))
		{
			VID_Error ( ERR_DROP, "mesh %s in model %s has wrong id (%i should be %i)",
					 poutmesh->name, mod->name, LittleLong((int)pinmesh->id), IDMD3HEADER );
		}

		poutmesh->num_tris = LittleLong ( pinmesh->num_tris );
		poutmesh->num_skins = LittleLong ( pinmesh->num_skins );
		poutmesh->num_verts = LittleLong ( pinmesh->num_verts );

		if ( poutmesh->num_skins <= 0 )
			VID_Error ( ERR_DROP, "mesh %i in model %s has no skins", i, mod->name );
		else if ( poutmesh->num_skins > MD3_MAX_SHADERS )
			VID_Error ( ERR_DROP, "mesh %i in model %s has too many skins", i, mod->name );

		if ( poutmesh->num_tris <= 0 )
			VID_Error ( ERR_DROP, "mesh %i in model %s has no triangles", i, mod->name );
		else if ( poutmesh->num_tris > MD3_MAX_TRIANGLES )
			VID_Error ( ERR_DROP, "mesh %i in model %s has too many triangles", i, mod->name );

		if ( poutmesh->num_verts <= 0 )
			VID_Error ( ERR_DROP, "mesh %i in model %s has no vertices", i, mod->name );
		else if ( poutmesh->num_verts > MD3_MAX_VERTS )
			VID_Error ( ERR_DROP, "mesh %i in model %s has too many vertices", i, mod->name );

		//
		// register all skins
		//
		pinskin = (dmd3skin_t *)((byte *)pinmesh + LittleLong (pinmesh->ofs_skins));
	//	poutskin = poutmesh->skins = Hunk_Alloc( sizeof(maliasskin_t) * poutmesh->num_skins );
		poutskin = poutmesh->skins = ModChunk_Alloc(sizeof(maliasskin_t) * poutmesh->num_skins);

		for ( j = 0; j < poutmesh->num_skins; j++, pinskin++, poutskin++ )
		{
			memcpy (name, pinskin->name, MD3_MAX_PATH);
			if (name[1] == 'o')
				name[0] = 'm';
			if (name[1] == 'l')
				name[0] = 'p';
			memcpy (poutskin->name, name, MD3_MAX_PATH);
			Com_sprintf(poutskin->glowname, sizeof(poutskin->glowname), "\0"); // set null glowskin
			mod->skins[i][j] = R_FindImage (name, it_skin);
		}

		//
		// load the indexes
		//
		pinindex = (index_t *)((byte *)pinmesh + LittleLong (pinmesh->ofs_tris));
	//	poutindex = poutmesh->indexes = Hunk_Alloc( sizeof(index_t) * poutmesh->num_tris * 3 );
		poutindex = poutmesh->indexes = ModChunk_Alloc(sizeof(index_t) * poutmesh->num_tris * 3);

		for ( j = 0; j < poutmesh->num_tris; j++, pinindex += 3, poutindex += 3 )
		{
			poutindex[0] = (index_t)LittleLong ( pinindex[0] );
			poutindex[1] = (index_t)LittleLong ( pinindex[1] );
			poutindex[2] = (index_t)LittleLong ( pinindex[2] );
		}

		//
		// load the texture coordinates
		//
		pincoord = (dmd3coord_t *)((byte *)pinmesh + LittleLong (pinmesh->ofs_tcs));
	//	poutcoord = poutmesh->stcoords = Hunk_Alloc( sizeof(maliascoord_t) * poutmesh->num_verts);
		poutcoord = poutmesh->stcoords = ModChunk_Alloc(sizeof(maliascoord_t) * poutmesh->num_verts);

		for ( j = 0; j < poutmesh->num_verts; j++, pincoord++, poutcoord++ )
		{
			poutcoord->st[0] = LittleFloat ( pincoord->st[0] );
			poutcoord->st[1] = LittleFloat ( pincoord->st[1] );
		}

		//
		// load the vertexes and normals
		//
		pinvert = (dmd3vertex_t *)((byte *)pinmesh + LittleLong (pinmesh->ofs_verts));
	//	poutvert = poutmesh->vertexes = Hunk_Alloc(poutmodel->num_frames * poutmesh->num_verts * sizeof(maliasvertex_t));
		poutvert = poutmesh->vertexes = ModChunk_Alloc(poutmodel->num_frames * poutmesh->num_verts * sizeof(maliasvertex_t));

		for ( l = 0; l < poutmodel->num_frames; l++ )
		{
			for ( j = 0; j < poutmesh->num_verts; j++, pinvert++, poutvert++ )
			{
				poutvert->xyz[0] = LittleShort(pinvert->point[0]);
				poutvert->xyz[1] = LittleShort(pinvert->point[1]);
				poutvert->xyz[2] = LittleShort(pinvert->point[2]);

				poutvert->normal[0] = (LittleShort(pinvert->norm) >> 0) & 0xff;
				poutvert->normal[1] = (LittleShort(pinvert->norm) >> 8) & 0xff;

				lat = (pinvert->norm >> 8) & 0xff;
				lng = (pinvert->norm & 0xff);
				
				lat *= M_PI/128;
				lng *= M_PI/128;

				normal[0] = cos(lat) * sin(lng);
				normal[1] = sin(lat) * sin(lng);
				normal[2] = cos(lng);

				// use ye olde quantized normals for shading
				maxdot = -999999.0;
				maxdotindex = -1;

				for (k=0; k<NUMVERTEXNORMALS; k++)
				{
					float dot = DotProduct (normal, r_avertexnormals[k]);
					if (dot > maxdot) {
						maxdot = dot;
						maxdotindex = k;
					}
				}
				poutvert->lightnormalindex = maxdotindex;
			}
		}
		pinmesh = (dmd3mesh_t *)((byte *)pinmesh + LittleLong (pinmesh->meshsize));

		//
		// build triangle neighbors
		//
	//	poutmesh->trneighbors = Hunk_Alloc (sizeof(int) * poutmesh->num_tris * 3);
		poutmesh->trneighbors = ModChunk_Alloc (sizeof(int) * poutmesh->num_tris * 3);
		Mod_BuildTriangleNeighbors (poutmesh);
	}

	mod->hasAlpha = false;
	Mod_LoadModelScript (mod, poutmodel); // md3 skin scripting

	//if (mod->hasAlpha)
	//	VID_Printf (PRINT_ALL, "Mod_LoadAliasMD3Model: model %s has trans mesh\n", mod->name);

	mod->type = mod_alias;
}
//Harven-- MD3


/*
==============================================================================

SPRITE MODELS

==============================================================================
*/

/*
=================
Mod_GetAllocSizeSprite 
Calc exact alloc size for sprite  in memory
=================
*/
size_t Mod_GetAllocSizeSprite (model_t *mod, void *buffer)
{
	size_t		allocSize;
		
	// calc memory allocation size
	allocSize = ((modfilelen) + 31) & ~31;
	
	return allocSize;
}


/*
=================
Mod_LoadSpriteModel
=================
*/
void Mod_LoadSpriteModel (model_t *mod, void *buffer)
{
	dspr2_t		*sprin, *sprout;
	int			i;

	sprin = (dspr2_t *)buffer;
//	sprout = Hunk_Alloc (modfilelen);
	sprout = ModChunk_Alloc (modfilelen);

	sprout->ident = LittleLong (sprin->ident);
	sprout->version = LittleLong (sprin->version);
	sprout->numframes = LittleLong (sprin->numframes);

	if (sprout->version != SP2_VERSION)
		VID_Error (ERR_DROP, "%s has wrong version number (%i should be %i)",
				 mod->name, sprout->version, SP2_VERSION);

	if (sprout->numframes > MD2_MAX_SKINS)
		VID_Error (ERR_DROP, "%s has too many frames (%i > %i)",
				 mod->name, sprout->numframes, MD2_MAX_SKINS);

	// byte swap everything
	for (i=0; i<sprout->numframes; i++)
	{
		sprout->frames[i].width = LittleLong (sprin->frames[i].width);
		sprout->frames[i].height = LittleLong (sprin->frames[i].height);
		sprout->frames[i].origin_x = LittleLong (sprin->frames[i].origin_x);
		sprout->frames[i].origin_y = LittleLong (sprin->frames[i].origin_y);
		memcpy (sprout->frames[i].name, sprin->frames[i].name, MD2_MAX_SKINNAME);
		mod->skins[0][i] = R_FindImage (sprout->frames[i].name,
			it_sprite);
	}

	mod->type = mod_sprite;
}

//=============================================================================

/*
@@@@@@@@@@@@@@@@@@@@@
R_BeginRegistration

Specifies the model that will be used as the world
@@@@@@@@@@@@@@@@@@@@@
*/
void R_BeginRegistration (char *model)
{
	char	fullname[MAX_QPATH];
	cvar_t	*flushmap;

	registration_sequence++;
	r_oldviewcluster = -1;		// force markleafs

	Mod_InitFailedTexList ();	// clear failed texture list
	Mod_InitWalSizeList ();		// clear wal size list

	Com_sprintf (fullname, sizeof(fullname), "maps/%s.bsp", model);

	// explicitly free the old map if different
	// this guarantees that mod_known[0] is the world map
	flushmap = Cvar_Get ("flushmap", "0", 0);
	Cvar_SetDescription ("flushmap", "Forces reload of same map when set to 1.");
	if (strcmp(mod_known[0].name, fullname) || flushmap->integer) {
		Mod_Free (&mod_known[0]);
		// clear this on map change (case of different server and autodownloading)
		R_InitFailedImgList ();
	}
	r_worldmodel = Mod_ForName(fullname, true);

	r_viewcluster = -1;

	registration_active = true;	// map registration flag
}


/*
@@@@@@@@@@@@@@@@@@@@@
R_RegisterModel

@@@@@@@@@@@@@@@@@@@@@
*/
struct model_s *R_RegisterModel (char *name)
{
	model_t		*mod;
	int			i;
	dspr2_t		*sprout;
#ifndef MD2_AS_MD3	//	Knightmare- no longer used!
	dmd2_t		*pheader;
#endif // MD2_AS_MD3
// Harven++ MD3
	maliasmodel_t	*pheader3;
// Harven-- MD3

	// Knightmare- MD3 autoreplace code
	int len = (int)strlen(name);
	if (!strcmp(name+len-4, ".md2")) // look if we have a .md2 file
	{
		char s[128];
	//	strncpy(s,name);
		Q_strncpyz(s, name, sizeof(s));
		s[len-1]='3';
		mod = R_RegisterModel (s);
		if (mod)
			return mod;
	}
	// end Knightmare

	mod = Mod_ForName (name, false);
	if (mod)
	{
		mod->registration_sequence = registration_sequence;

		// register any images used by the models
		if (mod->type == mod_sprite)
		{
			sprout = (dspr2_t *)mod->extradata;
			for (i=0 ; i<sprout->numframes ; i++)
				mod->skins[0][i] = R_FindImage (sprout->frames[i].name, it_sprite);
		}
#ifndef MD2_AS_MD3	//	Knightmare- no longer used!
		else if (mod->type == mod_md2)
		{
			pheader = (dmd2_t *)mod->extradata;
			for (i=0 ; i<pheader->num_skins ; i++)
				mod->skins[0][i] = R_FindImage ((char *)pheader + pheader->ofs_skins + i*MAX_SKINNAME, it_skin);
			mod->numframes = pheader->num_frames;
		}
#endif // MD2_AS_MD3
		// Harven++ MD3
		else if (mod->type == mod_alias)
		{
			int	k;

			pheader3 = (maliasmodel_t *)mod->extradata;

			for (i=0; i<pheader3->num_meshes; i++)
			{
				for (k=0; k<pheader3->meshes[i].num_skins; k++) {
					mod->skins[i][k] = R_FindImage(pheader3->meshes[i].skins[k].name, it_skin);
					if (strlen(pheader3->meshes[i].skins[k].glowname))
						pheader3->meshes[i].skins[k].glowimage = R_FindImage(pheader3->meshes[i].skins[k].glowname, it_skin);
				}
			}
			mod->numframes = pheader3->num_frames;
		}
		// Harven-- MD3
		else if (mod->type == mod_brush)
		{
			for (i=0 ; i<mod->numtexinfo ; i++) {
				mod->texinfo[i].image->registration_sequence = registration_sequence;
				mod->texinfo[i].glow->registration_sequence = registration_sequence;
			}
		}
	}
	return mod;
}


/*
@@@@@@@@@@@@@@@@@@@@@
R_EndRegistration

@@@@@@@@@@@@@@@@@@@@@
*/
void R_EndRegistration (void)
{
	int		i;
	model_t	*mod;

	for (i=0, mod=mod_known ; i<mod_numknown ; i++, mod++)
	{
		if (!mod->name[0])
			continue;
		if (mod->registration_sequence != registration_sequence)
		{	// don't need this model
			Mod_Free (mod);
		}
	}

	R_FreeUnusedImages ();

	registration_active = false;	// map registration flag
}


//=============================================================================


/*
================
Mod_Free
================
*/
void Mod_Free (model_t *mod)
{
	// Knightmare- only brush models use the hunk system now
//	Hunk_Free (mod->extradata);
	switch (mod->type)
	{
	case mod_brush:
		Hunk_Free (mod->extradata);
		break;
	case mod_alias:
	case mod_sprite:
	default:
		ModChunk_Free (mod->extradata);
		break;
	}

#ifdef PROJECTION_SHADOWS // projection shadows from BeefQuake R6
	if (mod->edge_tri)
		free (mod->edge_tri);
#endif // end projection shadows from BeefQuake R6

	memset (mod, 0, sizeof(*mod));
}

/*
================
Mod_FreeAll
================
*/
void Mod_FreeAll (void)
{
	int		i;

	for (i=0 ; i<mod_numknown ; i++)
	{
		if (mod_known[i].extradatasize)
			Mod_Free (&mod_known[i]);
	}
}