model_alias.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20
  21 #include "quakedef.h"
  22 #include "image.h"
  23 #include "r_shadow.h"
  24
  25 cvar_t r_skeletal_debugbone = {0, "r_skeletal_debugbone", "-1", "development cvar for testing skeletal model code"};
  26 cvar_t r_skeletal_debugbonecomponent = {0, "r_skeletal_debugbonecomponent", "3", "development cvar for testing skeletal model code"};
  27 cvar_t r_skeletal_debugbonevalue = {0, "r_skeletal_debugbonevalue", "100", "development cvar for testing skeletal model code"};
  28 cvar_t r_skeletal_debugtranslatex = {0, "r_skeletal_debugtranslatex", "1", "development cvar for testing skeletal model code"};
  29 cvar_t r_skeletal_debugtranslatey = {0, "r_skeletal_debugtranslatey", "1", "development cvar for testing skeletal model code"};
  30 cvar_t r_skeletal_debugtranslatez = {0, "r_skeletal_debugtranslatez", "1", "development cvar for testing skeletal model code"};
  31
  32 float mod_md3_sin[320];
  33
  34 void Mod_AliasInit (void)
  35 {
  36         int i;
  37         Cvar_RegisterVariable(&r_skeletal_debugbone);
  38         Cvar_RegisterVariable(&r_skeletal_debugbonecomponent);
  39         Cvar_RegisterVariable(&r_skeletal_debugbonevalue);
  40         Cvar_RegisterVariable(&r_skeletal_debugtranslatex);
  41         Cvar_RegisterVariable(&r_skeletal_debugtranslatey);
  42         Cvar_RegisterVariable(&r_skeletal_debugtranslatez);
  43         for (i = 0;i < 320;i++)
  44                 mod_md3_sin[i] = sin(i * M_PI * 2.0f / 256.0);
  45 }
  46
  47 void Mod_Alias_GetMesh_Vertices(const model_t *model, const frameblend_t *frameblend, float *vertex3f, float *normal3f, float *svector3f, float *tvector3f)
  48 {
  49         if (model->surfmesh.data_vertexweightindex4i)
  50         {
  51                 int i, k, blends;
  52                 const float *v = model->surfmesh.data_vertex3f;
  53                 const float *n = model->surfmesh.data_normal3f;
  54                 const float *sv = model->surfmesh.data_svector3f;
  55                 const float *tv = model->surfmesh.data_tvector3f;
  56                 const int *wi = model->surfmesh.data_vertexweightindex4i;
  57                 const float *wf = model->surfmesh.data_vertexweightinfluence4f;
  58                 float *matrix, m[12], bonepose[256][12], boneposerelative[256][12];
  59                 // vertex weighted skeletal
  60                 memset(vertex3f, 0, model->surfmesh.num_vertices * sizeof(float[3]));
  61                 if (normal3f)
  62                         memset(normal3f, 0, model->surfmesh.num_vertices * sizeof(float[3]));
  63                 if (svector3f)
  64                 {
  65                         memset(svector3f, 0, model->surfmesh.num_vertices * sizeof(float[3]));
  66                         memset(tvector3f, 0, model->surfmesh.num_vertices * sizeof(float[3]));
  67                 }
  68                 // interpolate matrices and concatenate them to their parents
  69                 for (i = 0;i < model->num_bones;i++)
  70                 {
  71                         for (k = 0;k < 12;k++)
  72                                 m[k] = 0;
  73                         for (blends = 0;blends < 4 && frameblend[blends].lerp > 0;blends++)
  74                         {
  75                                 matrix = model->data_poses + (frameblend[blends].frame * model->num_bones + i) * 12;
  76                                 for (k = 0;k < 12;k++)
  77                                         m[k] += matrix[k] * frameblend[blends].lerp;
  78                         }
  79                         if (i == r_skeletal_debugbone.integer)
  80                                 m[r_skeletal_debugbonecomponent.integer % 12] += r_skeletal_debugbonevalue.value;
  81                         m[3] *= r_skeletal_debugtranslatex.value;
  82                         m[7] *= r_skeletal_debugtranslatey.value;
  83                         m[11] *= r_skeletal_debugtranslatez.value;
  84                         if (model->data_bones[i].parent >= 0)
  85                                 R_ConcatTransforms(bonepose[model->data_bones[i].parent], m, bonepose[i]);
  86                         else
  87                                 for (k = 0;k < 12;k++)
  88                                         bonepose[i][k] = m[k];
  89                         // create a relative deformation matrix to describe displacement
  90                         // from the base mesh, which is used by the actual weighting
  91                         R_ConcatTransforms(bonepose[i], model->data_baseboneposeinverse + i * 12, boneposerelative[i]);
  92                 }
  93                 // blend the vertex bone weights
  94                 if (svector3f)
  95                 {
  96                         for (i = 0;i < model->surfmesh.num_vertices;i++, v += 3, n += 3, sv += 3, tv += 3, wi += 4, wf += 4, vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3)
  97                         {
  98                                 for (k = 0;k < 4 && wf[k];k++)
  99                                 {
 100                                         const float *m = boneposerelative[wi[k]];
 101                                         float f = wf[k];
 102                                         vertex3f[0] += f * (v[0] * m[0] + v[1] * m[1] + v[2] * m[ 2] + m[ 3]);
 103                                         vertex3f[1] += f * (v[0] * m[4] + v[1] * m[5] + v[2] * m[ 6] + m[ 7]);
 104                                         vertex3f[2] += f * (v[0] * m[8] + v[1] * m[9] + v[2] * m[10] + m[11]);
 105                                         normal3f[0] += f * (n[0] * m[0] + n[1] * m[1] + n[2] * m[ 2]);
 106                                         normal3f[1] += f * (n[0] * m[4] + n[1] * m[5] + n[2] * m[ 6]);
 107                                         normal3f[2] += f * (n[0] * m[8] + n[1] * m[9] + n[2] * m[10]);
 108                                         svector3f[0] += f * (sv[0] * m[0] + sv[1] * m[1] + sv[2] * m[ 2]);
 109                                         svector3f[1] += f * (sv[0] * m[4] + sv[1] * m[5] + sv[2] * m[ 6]);
 110                                         svector3f[2] += f * (sv[0] * m[8] + sv[1] * m[9] + sv[2] * m[10]);
 111                                         tvector3f[0] += f * (tv[0] * m[0] + tv[1] * m[1] + tv[2] * m[ 2]);
 112                                         tvector3f[1] += f * (tv[0] * m[4] + tv[1] * m[5] + tv[2] * m[ 6]);
 113                                         tvector3f[2] += f * (tv[0] * m[8] + tv[1] * m[9] + tv[2] * m[10]);
 114                                 }
 115                         }
 116                 }
 117                 else if (normal3f)
 118                 {
 119                         for (i = 0;i < model->surfmesh.num_vertices;i++, v += 3, n += 3, wi += 4, wf += 4, vertex3f += 3, normal3f += 3)
 120                         {
 121                                 for (k = 0;k < 4 && wf[k];k++)
 122                                 {
 123                                         const float *m = boneposerelative[wi[k]];
 124                                         float f = wf[k];
 125                                         vertex3f[0] += f * (v[0] * m[0] + v[1] * m[1] + v[2] * m[ 2] + m[ 3]);
 126                                         vertex3f[1] += f * (v[0] * m[4] + v[1] * m[5] + v[2] * m[ 6] + m[ 7]);
 127                                         vertex3f[2] += f * (v[0] * m[8] + v[1] * m[9] + v[2] * m[10] + m[11]);
 128                                         normal3f[0] += f * (n[0] * m[0] + n[1] * m[1] + n[2] * m[ 2]);
 129                                         normal3f[1] += f * (n[0] * m[4] + n[1] * m[5] + n[2] * m[ 6]);
 130                                         normal3f[2] += f * (n[0] * m[8] + n[1] * m[9] + n[2] * m[10]);
 131                                 }
 132                         }
 133                 }
 134                 else
 135                 {
 136                         for (i = 0;i < model->surfmesh.num_vertices;i++, v += 3, wi += 4, wf += 4, vertex3f += 3)
 137                         {
 138                                 for (k = 0;k < 4 && wf[k];k++)
 139                                 {
 140                                         const float *m = boneposerelative[wi[k]];
 141                                         float f = wf[k];
 142                                         vertex3f[0] += f * (v[0] * m[0] + v[1] * m[1] + v[2] * m[ 2] + m[ 3]);
 143                                         vertex3f[1] += f * (v[0] * m[4] + v[1] * m[5] + v[2] * m[ 6] + m[ 7]);
 144                                         vertex3f[2] += f * (v[0] * m[8] + v[1] * m[9] + v[2] * m[10] + m[11]);
 145                                 }
 146                         }
 147                 }
 148         }
 149         else if (model->surfmesh.data_morphmd3vertex)
 150         {
 151                 // vertex morph
 152                 int i, numblends, blendnum;
 153                 int numverts = model->surfmesh.num_vertices;
 154                 numblends = 0;
 155                 for (blendnum = 0;blendnum < 4;blendnum++)
 156                 {
 157                         //VectorMA(translate, model->surfmesh.num_morphmdlframetranslate, frameblend[blendnum].lerp, translate);
 158                         if (frameblend[blendnum].lerp > 0)
 159                                 numblends = blendnum + 1;
 160                 }
 161                 memset(vertex3f, 0, numverts * sizeof(float[3]));
 162                 if (normal3f)
 163                         for (i = 0;i < numverts;i++)
 164                                 VectorClear(normal3f + i * 3);
 165                 for (blendnum = 0;blendnum < numblends;blendnum++)
 166                 {
 167                         const md3vertex_t *verts = model->surfmesh.data_morphmd3vertex + numverts * frameblend[blendnum].frame;
 168                         float scale = frameblend[blendnum].lerp * (1.0f / 64.0f);
 169                         for (i = 0;i < numverts;i++)
 170                         {
 171                                 vertex3f[i * 3 + 0] += verts[i].origin[0] * scale;
 172                                 vertex3f[i * 3 + 1] += verts[i].origin[1] * scale;
 173                                 vertex3f[i * 3 + 2] += verts[i].origin[2] * scale;
 174                         }
 175                         // the yaw and pitch stored in md3 models are 8bit quantized angles
 176                         // (0-255), and as such a lookup table is very well suited to
 177                         // decoding them, and since cosine is equivilant to sine with an
 178                         // extra 45 degree rotation, this uses one lookup table for both
 179                         // sine and cosine with a +64 bias to get cosine.
 180                         if (normal3f)
 181                         {
 182                                 float lerp = frameblend[blendnum].lerp;
 183                                 for (i = 0;i < numverts;i++)
 184                                 {
 185                                         normal3f[i * 3 + 0] += mod_md3_sin[verts[i].yaw + 64] * mod_md3_sin[verts[i].pitch     ] * lerp;
 186                                         normal3f[i * 3 + 1] += mod_md3_sin[verts[i].yaw     ] * mod_md3_sin[verts[i].pitch     ] * lerp;
 187                                         normal3f[i * 3 + 2] +=                                  mod_md3_sin[verts[i].pitch + 64] * lerp;
 188                                 }
 189                         }
 190                 }
 191                 if (normal3f)
 192                         if (svector3f)
 193                                 Mod_BuildTextureVectorsFromNormals(0, model->surfmesh.num_vertices, model->surfmesh.num_triangles, vertex3f, model->surfmesh.data_texcoordtexture2f, normal3f, model->surfmesh.data_element3i, svector3f, tvector3f, r_smoothnormals_areaweighting.integer);
 194         }
 195         else if (model->surfmesh.data_morphmdlvertex)
 196         {
 197                 // vertex morph
 198                 int i, numblends, blendnum;
 199                 int numverts = model->surfmesh.num_vertices;
 200                 float translate[3];
 201                 VectorClear(translate);
 202                 numblends = 0;
 203                 for (blendnum = 0;blendnum < 4;blendnum++)
 204                 {
 205                         if (model->surfmesh.data_morphmd2framesize6f)
 206                                 VectorMA(translate, frameblend[blendnum].lerp, model->surfmesh.data_morphmd2framesize6f + frameblend[blendnum].frame * 6 + 3, translate);
 207                         else
 208                                 VectorMA(translate, frameblend[blendnum].lerp, model->surfmesh.num_morphmdlframetranslate, translate);
 209                         if (frameblend[blendnum].lerp > 0)
 210                                 numblends = blendnum + 1;
 211                 }
 212                 for (i = 0;i < numverts;i++)
 213                         VectorCopy(translate, vertex3f + i * 3);
 214                 if (normal3f)
 215                         for (i = 0;i < numverts;i++)
 216                                 VectorClear(normal3f + i * 3);
 217                 for (blendnum = 0;blendnum < numblends;blendnum++)
 218                 {
 219                         const trivertx_t *verts = model->surfmesh.data_morphmdlvertex + numverts * frameblend[blendnum].frame;
 220                         float scale[3];
 221                         if (model->surfmesh.data_morphmd2framesize6f)
 222                                 VectorScale(model->surfmesh.data_morphmd2framesize6f + frameblend[blendnum].frame * 6, frameblend[blendnum].lerp, scale);
 223                         else
 224                                 VectorScale(model->surfmesh.num_morphmdlframescale, frameblend[blendnum].lerp, scale);
 225                         for (i = 0;i < numverts;i++)
 226                         {
 227                                 vertex3f[i * 3 + 0] += verts[i].v[0] * scale[0];
 228                                 vertex3f[i * 3 + 1] += verts[i].v[1] * scale[1];
 229                                 vertex3f[i * 3 + 2] += verts[i].v[2] * scale[2];
 230                         }
 231                         // the vertex normals in mdl models are an index into a table of
 232                         // 162 unique values, this very crude quantization reduces the
 233                         // vertex normal to only one byte, which saves a lot of space but
 234                         // also makes lighting pretty coarse
 235                         if (normal3f)
 236                         {
 237                                 float lerp = frameblend[blendnum].lerp;
 238                                 for (i = 0;i < numverts;i++)
 239                                 {
 240                                         const float *vn = m_bytenormals[verts[i].lightnormalindex];
 241                                         VectorMA(normal3f + i*3, lerp, vn, normal3f + i*3);
 242                                 }
 243                         }
 244                 }
 245                 if (normal3f)
 246                         if (svector3f)
 247                                 Mod_BuildTextureVectorsFromNormals(0, model->surfmesh.num_vertices, model->surfmesh.num_triangles, vertex3f, model->surfmesh.data_texcoordtexture2f, normal3f, model->surfmesh.data_element3i, svector3f, tvector3f, r_smoothnormals_areaweighting.integer);
 248         }
 249         else
 250                 Host_Error("model %s has no skeletal or vertex morph animation data", model->name);
 251 }
 252
 253 int Mod_Alias_GetTagMatrix(const model_t *model, int poseframe, int tagindex, matrix4x4_t *outmatrix)
 254 {
 255         const float *boneframe;
 256         float tempbonematrix[12], bonematrix[12];
 257         *outmatrix = identitymatrix;
 258         if (model->num_bones)
 259         {
 260                 if (tagindex < 0 || tagindex >= model->num_bones)
 261                         return 4;
 262                 if (poseframe >= model->num_poses)
 263                         return 6;
 264                 boneframe = model->data_poses + poseframe * model->num_bones * 12;
 265                 memcpy(bonematrix, boneframe + tagindex * 12, sizeof(float[12]));
 266                 while (model->data_bones[tagindex].parent >= 0)
 267                 {
 268                         memcpy(tempbonematrix, bonematrix, sizeof(float[12]));
 269                         R_ConcatTransforms(boneframe + model->data_bones[tagindex].parent * 12, tempbonematrix, bonematrix);
 270                         tagindex = model->data_bones[tagindex].parent;
 271                 }
 272                 Matrix4x4_FromArray12FloatD3D(outmatrix, bonematrix);
 273         }
 274         else if (model->num_tags)
 275         {
 276                 if (tagindex < 0 || tagindex >= model->num_tags)
 277                         return 4;
 278                 if (poseframe >= model->num_tagframes)
 279                         return 6;
 280                 Matrix4x4_FromArray12FloatGL(outmatrix, model->data_tags[poseframe * model->num_tags + tagindex].matrixgl);
 281         }
 282         return 0;
 283 }
 284
 285 int Mod_Alias_GetTagIndexForName(const model_t *model, unsigned int skin, const char *tagname)
 286 {
 287         int i;
 288         if (model->data_overridetagnamesforskin && skin < (unsigned int)model->numskins && model->data_overridetagnamesforskin[(unsigned int)skin].num_overridetagnames)
 289                 for (i = 0;i < model->data_overridetagnamesforskin[skin].num_overridetagnames;i++)
 290                         if (!strcasecmp(tagname, model->data_overridetagnamesforskin[skin].data_overridetagnames[i].name))
 291                                 return i + 1;
 292         if (model->num_bones)
 293                 for (i = 0;i < model->num_bones;i++)
 294                         if (!strcasecmp(tagname, model->data_bones[i].name))
 295                                 return i + 1;
 296         if (model->num_tags)
 297                 for (i = 0;i < model->num_tags;i++)
 298                         if (!strcasecmp(tagname, model->data_tags[i].name))
 299                                 return i + 1;
 300         return 0;
 301 }
 302
 303 static void Mod_BuildBaseBonePoses(void)
 304 {
 305         int i, k;
 306         double scale;
 307         float *in12f = loadmodel->data_poses;
 308         float *out12f = loadmodel->data_basebonepose;
 309         float *outinv12f = loadmodel->data_baseboneposeinverse;
 310         for (i = 0;i < loadmodel->num_bones;i++, in12f += 12, out12f += 12, outinv12f += 12)
 311         {
 312                 if (loadmodel->data_bones[i].parent >= 0)
 313                         R_ConcatTransforms(loadmodel->data_basebonepose + 12 * loadmodel->data_bones[i].parent, in12f, out12f);
 314                 else
 315                         for (k = 0;k < 12;k++)
 316                                 out12f[k] = in12f[k];
 317
 318                 // invert The Matrix
 319
 320                 // we only support uniform scaling, so assume the first row is enough
 321                 // (note the lack of sqrt here, because we're trying to undo the scaling,
 322                 // this means multiplying by the inverse scale twice - squaring it, which
 323                 // makes the sqrt a waste of time)
 324                 scale = 1.0 / (out12f[ 0] * out12f[ 0] + out12f[ 1] * out12f[ 1] + out12f[ 2] * out12f[ 2]);
 325
 326                 // invert the rotation by transposing and multiplying by the squared
 327                 // recipricol of the input matrix scale as described above
 328                 outinv12f[ 0] = (float)(out12f[ 0] * scale);
 329                 outinv12f[ 1] = (float)(out12f[ 4] * scale);
 330                 outinv12f[ 2] = (float)(out12f[ 8] * scale);
 331                 outinv12f[ 4] = (float)(out12f[ 1] * scale);
 332                 outinv12f[ 5] = (float)(out12f[ 5] * scale);
 333                 outinv12f[ 6] = (float)(out12f[ 9] * scale);
 334                 outinv12f[ 8] = (float)(out12f[ 2] * scale);
 335                 outinv12f[ 9] = (float)(out12f[ 6] * scale);
 336                 outinv12f[10] = (float)(out12f[10] * scale);
 337
 338                 // invert the translate
 339                 outinv12f[ 3] = -(out12f[ 3] * outinv12f[ 0] + out12f[ 7] * outinv12f[ 1] + out12f[11] * outinv12f[ 2]);
 340                 outinv12f[ 7] = -(out12f[ 3] * outinv12f[ 4] + out12f[ 7] * outinv12f[ 5] + out12f[11] * outinv12f[ 6]);
 341                 outinv12f[11] = -(out12f[ 3] * outinv12f[ 8] + out12f[ 7] * outinv12f[ 9] + out12f[11] * outinv12f[10]);
 342         }
 343 }
 344
 345 static void Mod_Alias_CalculateBoundingBox(void)
 346 {
 347         int i, j;
 348         int vnum;
 349         qboolean firstvertex = true;
 350         float dist, yawradius, radius;
 351         float *v;
 352         float *vertex3f;
 353         frameblend_t frameblend[4];
 354         memset(frameblend, 0, sizeof(frameblend));
 355         frameblend[0].lerp = 1;
 356         vertex3f = Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[3]));
 357         VectorClear(loadmodel->normalmins);
 358         VectorClear(loadmodel->normalmaxs);
 359         yawradius = 0;
 360         radius = 0;
 361         for (i = 0;i < loadmodel->numframes;i++)
 362         {
 363                 for (j = 0, frameblend[0].frame = loadmodel->animscenes[i].firstframe;j < loadmodel->animscenes[i].framecount;j++, frameblend[0].frame++)
 364                 {
 365                         Mod_Alias_GetMesh_Vertices(loadmodel, frameblend, vertex3f, NULL, NULL, NULL);
 366                         for (vnum = 0, v = vertex3f;vnum < loadmodel->surfmesh.num_vertices;vnum++, v += 3)
 367                         {
 368                                 if (firstvertex)
 369                                 {
 370                                         firstvertex = false;
 371                                         VectorCopy(v, loadmodel->normalmins);
 372                                         VectorCopy(v, loadmodel->normalmaxs);
 373                                 }
 374                                 else
 375                                 {
 376                                         if (loadmodel->normalmins[0] > v[0]) loadmodel->normalmins[0] = v[0];
 377                                         if (loadmodel->normalmins[1] > v[1]) loadmodel->normalmins[1] = v[1];
 378                                         if (loadmodel->normalmins[2] > v[2]) loadmodel->normalmins[2] = v[2];
 379                                         if (loadmodel->normalmaxs[0] < v[0]) loadmodel->normalmaxs[0] = v[0];
 380                                         if (loadmodel->normalmaxs[1] < v[1]) loadmodel->normalmaxs[1] = v[1];
 381                                         if (loadmodel->normalmaxs[2] < v[2]) loadmodel->normalmaxs[2] = v[2];
 382                                 }
 383                                 dist = v[0] * v[0] + v[1] * v[1];
 384                                 if (yawradius < dist)
 385                                         yawradius = dist;
 386                                 dist += v[2] * v[2];
 387                                 if (radius < dist)
 388                                         radius = dist;
 389                         }
 390                 }
 391         }
 392         Mem_Free(vertex3f);
 393         radius = sqrt(radius);
 394         yawradius = sqrt(yawradius);
 395         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -yawradius;
 396         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = yawradius;
 397         loadmodel->yawmins[2] = loadmodel->normalmins[2];
 398         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
 399         loadmodel->rotatedmins[0] = loadmodel->rotatedmins[1] = loadmodel->rotatedmins[2] = -radius;
 400         loadmodel->rotatedmaxs[0] = loadmodel->rotatedmaxs[1] = loadmodel->rotatedmaxs[2] = radius;
 401         loadmodel->radius = radius;
 402         loadmodel->radius2 = radius * radius;
 403 }
 404
 405 static void Mod_Alias_Mesh_CompileFrameZero(void)
 406 {
 407         frameblend_t frameblend[4] = {{0, 1}, {0, 0}, {0, 0}, {0, 0}};
 408         loadmodel->surfmesh.data_vertex3f = (float *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[3][4]));
 409         loadmodel->surfmesh.data_svector3f = loadmodel->surfmesh.data_vertex3f + loadmodel->surfmesh.num_vertices * 3;
 410         loadmodel->surfmesh.data_tvector3f = loadmodel->surfmesh.data_vertex3f + loadmodel->surfmesh.num_vertices * 6;
 411         loadmodel->surfmesh.data_normal3f = loadmodel->surfmesh.data_vertex3f + loadmodel->surfmesh.num_vertices * 9;
 412         Mod_Alias_GetMesh_Vertices(loadmodel, frameblend, loadmodel->surfmesh.data_vertex3f, NULL, NULL, NULL);
 413         Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, true);
 414         Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
 415 }
 416
 417 static void Mod_MDLMD2MD3_TraceBox(model_t *model, int frame, trace_t *trace, const vec3_t start, const vec3_t boxmins, const vec3_t boxmaxs, const vec3_t end, int hitsupercontentsmask)
 418 {
 419         int i;
 420         float segmentmins[3], segmentmaxs[3];
 421         frameblend_t frameblend[4];
 422         msurface_t *surface;
 423         static int maxvertices = 0;
 424         static float *vertex3f = NULL;
 425         memset(trace, 0, sizeof(*trace));
 426         trace->fraction = 1;
 427         trace->realfraction = 1;
 428         trace->hitsupercontentsmask = hitsupercontentsmask;
 429         memset(frameblend, 0, sizeof(frameblend));
 430         frameblend[0].frame = frame;
 431         frameblend[0].lerp = 1;
 432         if (maxvertices < model->surfmesh.num_vertices)
 433         {
 434                 if (vertex3f)
 435                         Z_Free(vertex3f);
 436                 maxvertices = (model->surfmesh.num_vertices + 255) & ~255;
 437                 vertex3f = (float *)Z_Malloc(maxvertices * sizeof(float[3]));
 438         }
 439         if (VectorLength2(boxmins) + VectorLength2(boxmaxs) == 0)
 440         {
 441                 // line trace
 442                 segmentmins[0] = min(start[0], end[0]) - 1;
 443                 segmentmins[1] = min(start[1], end[1]) - 1;
 444                 segmentmins[2] = min(start[2], end[2]) - 1;
 445                 segmentmaxs[0] = max(start[0], end[0]) + 1;
 446                 segmentmaxs[1] = max(start[1], end[1]) + 1;
 447                 segmentmaxs[2] = max(start[2], end[2]) + 1;
 448                 for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
 449                 {
 450                         Mod_Alias_GetMesh_Vertices(model, frameblend, vertex3f, NULL, NULL, NULL);
 451                         Collision_TraceLineTriangleMeshFloat(trace, start, end, model->surfmesh.num_triangles, model->surfmesh.data_element3i, vertex3f, SUPERCONTENTS_SOLID, 0, surface->texture, segmentmins, segmentmaxs);
 452                 }
 453         }
 454         else
 455         {
 456                 // box trace, performed as brush trace
 457                 colbrushf_t *thisbrush_start, *thisbrush_end;
 458                 vec3_t boxstartmins, boxstartmaxs, boxendmins, boxendmaxs;
 459                 segmentmins[0] = min(start[0], end[0]) + boxmins[0] - 1;
 460                 segmentmins[1] = min(start[1], end[1]) + boxmins[1] - 1;
 461                 segmentmins[2] = min(start[2], end[2]) + boxmins[2] - 1;
 462                 segmentmaxs[0] = max(start[0], end[0]) + boxmaxs[0] + 1;
 463                 segmentmaxs[1] = max(start[1], end[1]) + boxmaxs[1] + 1;
 464                 segmentmaxs[2] = max(start[2], end[2]) + boxmaxs[2] + 1;
 465                 VectorAdd(start, boxmins, boxstartmins);
 466                 VectorAdd(start, boxmaxs, boxstartmaxs);
 467                 VectorAdd(end, boxmins, boxendmins);
 468                 VectorAdd(end, boxmaxs, boxendmaxs);
 469                 thisbrush_start = Collision_BrushForBox(&identitymatrix, boxstartmins, boxstartmaxs, 0, 0, NULL);
 470                 thisbrush_end = Collision_BrushForBox(&identitymatrix, boxendmins, boxendmaxs, 0, 0, NULL);
 471                 for (i = 0, surface = model->data_surfaces;i < model->num_surfaces;i++, surface++)
 472                 {
 473                         if (maxvertices < model->surfmesh.num_vertices)
 474                         {
 475                                 if (vertex3f)
 476                                         Z_Free(vertex3f);
 477                                 maxvertices = (model->surfmesh.num_vertices + 255) & ~255;
 478                                 vertex3f = (float *)Z_Malloc(maxvertices * sizeof(float[3]));
 479                         }
 480                         Mod_Alias_GetMesh_Vertices(model, frameblend, vertex3f, NULL, NULL, NULL);
 481                         Collision_TraceBrushTriangleMeshFloat(trace, thisbrush_start, thisbrush_end, model->surfmesh.num_triangles, model->surfmesh.data_element3i, vertex3f, SUPERCONTENTS_SOLID, 0, surface->texture, segmentmins, segmentmaxs);
 482                 }
 483         }
 484 }
 485
 486 static void Mod_ConvertAliasVerts (int inverts, trivertx_t *v, trivertx_t *out, int *vertremap)
 487 {
 488         int i, j;
 489         for (i = 0;i < inverts;i++)
 490         {
 491                 if (vertremap[i] < 0 && vertremap[i+inverts] < 0) // only used vertices need apply...
 492                         continue;
 493                 j = vertremap[i]; // not onseam
 494                 if (j >= 0)
 495                         out[j] = v[i];
 496                 j = vertremap[i+inverts]; // onseam
 497                 if (j >= 0)
 498                         out[j] = v[i];
 499         }
 500 }
 501
 502 static void Mod_MDL_LoadFrames (unsigned char* datapointer, int inverts, int *vertremap)
 503 {
 504         int i, f, pose, groupframes;
 505         float interval;
 506         daliasframetype_t *pframetype;
 507         daliasframe_t *pinframe;
 508         daliasgroup_t *group;
 509         daliasinterval_t *intervals;
 510         animscene_t *scene;
 511         pose = 0;
 512         scene = loadmodel->animscenes;
 513         for (f = 0;f < loadmodel->numframes;f++)
 514         {
 515                 pframetype = (daliasframetype_t *)datapointer;
 516                 datapointer += sizeof(daliasframetype_t);
 517                 if (LittleLong (pframetype->type) == ALIAS_SINGLE)
 518                 {
 519                         // a single frame is still treated as a group
 520                         interval = 0.1f;
 521                         groupframes = 1;
 522                 }
 523                 else
 524                 {
 525                         // read group header
 526                         group = (daliasgroup_t *)datapointer;
 527                         datapointer += sizeof(daliasgroup_t);
 528                         groupframes = LittleLong (group->numframes);
 529
 530                         // intervals (time per frame)
 531                         intervals = (daliasinterval_t *)datapointer;
 532                         datapointer += sizeof(daliasinterval_t) * groupframes;
 533
 534                         interval = LittleFloat (intervals->interval); // FIXME: support variable framerate groups
 535                         if (interval < 0.01f)
 536                         {
 537                                 Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 538                                 interval = 0.1f;
 539                         }
 540                 }
 541
 542                 // get scene name from first frame
 543                 pinframe = (daliasframe_t *)datapointer;
 544
 545                 strlcpy(scene->name, pinframe->name, sizeof(scene->name));
 546                 scene->firstframe = pose;
 547                 scene->framecount = groupframes;
 548                 scene->framerate = 1.0f / interval;
 549                 scene->loop = true;
 550                 scene++;
 551
 552                 // read frames
 553                 for (i = 0;i < groupframes;i++)
 554                 {
 555                         pinframe = (daliasframe_t *)datapointer;
 556                         datapointer += sizeof(daliasframe_t);
 557                         Mod_ConvertAliasVerts(inverts, (trivertx_t *)datapointer, loadmodel->surfmesh.data_morphmdlvertex + pose * loadmodel->surfmesh.num_vertices, vertremap);
 558                         datapointer += sizeof(trivertx_t) * inverts;
 559                         pose++;
 560                 }
 561         }
 562 }
 563
 564 static void Mod_BuildAliasSkinFromSkinFrame(texture_t *texture, skinframe_t *skinframe)
 565 {
 566         texture->currentframe = texture;
 567         texture->numskinframes = 1;
 568         texture->skinframerate = 1;
 569         texture->currentskinframe = texture->skinframes + 0;
 570         if (skinframe)
 571                 texture->skinframes[0] = *skinframe;
 572         else
 573         {
 574                 // hack
 575                 memset(texture->skinframes, 0, sizeof(texture->skinframes));
 576                 texture->skinframes[0].base = r_texture_notexture;
 577         }
 578
 579         texture->basematerialflags = MATERIALFLAG_WALL;
 580         if (texture->currentskinframe->fog)
 581                 texture->basematerialflags |= MATERIALFLAG_ALPHA | MATERIALFLAG_BLENDED | MATERIALFLAG_TRANSPARENT;
 582         texture->currentmaterialflags = texture->basematerialflags;
 583 }
 584
 585 static void Mod_BuildAliasSkinsFromSkinFiles(texture_t *skin, skinfile_t *skinfile, char *meshname, char *shadername)
 586 {
 587         int i;
 588         skinfileitem_t *skinfileitem;
 589         skinframe_t tempskinframe;
 590         if (skinfile)
 591         {
 592                 // the skin += loadmodel->num_surfaces part of this is because data_textures on alias models is arranged as [numskins][numsurfaces]
 593                 for (i = 0;skinfile;skinfile = skinfile->next, i++, skin += loadmodel->num_surfaces)
 594                 {
 595                         memset(skin, 0, sizeof(*skin));
 596                         for (skinfileitem = skinfile->items;skinfileitem;skinfileitem = skinfileitem->next)
 597                         {
 598                                 // leave the skin unitialized (nodraw) if the replacement is "common/nodraw" or "textures/common/nodraw"
 599                                 if (!strcmp(skinfileitem->name, meshname) && strcmp(skinfileitem->replacement, "common/nodraw") && strcmp(skinfileitem->replacement, "textures/common/nodraw"))
 600                                 {
 601                                         memset(&tempskinframe, 0, sizeof(tempskinframe));
 602                                         if (Mod_LoadSkinFrame(&tempskinframe, skinfileitem->replacement, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 603                                                 Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 604                                         else
 605                                         {
 606                                                 if (cls.state != ca_dedicated)
 607                                                         Con_Printf("mesh \"%s\": failed to load skin #%i \"%s\", falling back to mesh's internal shader name \"%s\"\n", meshname, i, skinfileitem->replacement, shadername);
 608                                                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 609                                                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 610                                                 else
 611                                                 {
 612                                                         if (cls.state != ca_dedicated)
 613                                                                 Con_Printf("failed to load skin \"%s\"\n", shadername);
 614                                                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 615                                                 }
 616                                         }
 617                                 }
 618                         }
 619                 }
 620         }
 621         else
 622         {
 623                 memset(&tempskinframe, 0, sizeof(tempskinframe));
 624                 if (Mod_LoadSkinFrame(&tempskinframe, shadername, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
 625                         Mod_BuildAliasSkinFromSkinFrame(skin, &tempskinframe);
 626                 else
 627                 {
 628                         if (cls.state != ca_dedicated)
 629                                 Con_Printf("Can't find texture \"%s\" for mesh \"%s\", using grey checkerboard\n", shadername, meshname);
 630                         Mod_BuildAliasSkinFromSkinFrame(skin, NULL);
 631                 }
 632         }
 633 }
 634
 635 #define BOUNDI(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%d exceeds %d - %d)", loadmodel->name, VALUE, MIN, MAX);
 636 #define BOUNDF(VALUE,MIN,MAX) if (VALUE < MIN || VALUE >= MAX) Host_Error("model %s has an invalid ##VALUE (%f exceeds %f - %f)", loadmodel->name, VALUE, MIN, MAX);
 637 void Mod_IDP0_Load(model_t *mod, void *buffer, void *bufferend)
 638 {
 639         int i, j, version, totalskins, skinwidth, skinheight, groupframes, groupskins, numverts;
 640         float scales, scalet, interval;
 641         msurface_t *surface;
 642         unsigned char *data;
 643         mdl_t *pinmodel;
 644         stvert_t *pinstverts;
 645         dtriangle_t *pintriangles;
 646         daliasskintype_t *pinskintype;
 647         daliasskingroup_t *pinskingroup;
 648         daliasskininterval_t *pinskinintervals;
 649         daliasframetype_t *pinframetype;
 650         daliasgroup_t *pinframegroup;
 651         unsigned char *datapointer, *startframes, *startskins;
 652         char name[MAX_QPATH];
 653         skinframe_t tempskinframe;
 654         animscene_t *tempskinscenes;
 655         texture_t *tempaliasskins;
 656         float *vertst;
 657         int *vertonseam, *vertremap;
 658         skinfile_t *skinfiles;
 659
 660         datapointer = (unsigned char *)buffer;
 661         pinmodel = (mdl_t *)datapointer;
 662         datapointer += sizeof(mdl_t);
 663
 664         version = LittleLong (pinmodel->version);
 665         if (version != ALIAS_VERSION)
 666                 Host_Error ("%s has wrong version number (%i should be %i)",
 667                                  loadmodel->name, version, ALIAS_VERSION);
 668
 669         loadmodel->type = mod_alias;
 670         loadmodel->DrawSky = NULL;
 671         loadmodel->Draw = R_Q1BSP_Draw;
 672         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
 673         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 674         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 675         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 676
 677         loadmodel->num_surfaces = 1;
 678         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
 679         data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int));
 680         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
 681         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
 682         loadmodel->surfacelist[0] = 0;
 683
 684         loadmodel->numskins = LittleLong(pinmodel->numskins);
 685         BOUNDI(loadmodel->numskins,0,65536);
 686         skinwidth = LittleLong (pinmodel->skinwidth);
 687         BOUNDI(skinwidth,0,65536);
 688         skinheight = LittleLong (pinmodel->skinheight);
 689         BOUNDI(skinheight,0,65536);
 690         numverts = LittleLong(pinmodel->numverts);
 691         BOUNDI(numverts,0,65536);
 692         loadmodel->surfmesh.num_triangles = LittleLong(pinmodel->numtris);
 693         BOUNDI(loadmodel->surfmesh.num_triangles,0,65536);
 694         loadmodel->numframes = LittleLong(pinmodel->numframes);
 695         BOUNDI(loadmodel->numframes,0,65536);
 696         loadmodel->synctype = (synctype_t)LittleLong (pinmodel->synctype);
 697         BOUNDI(loadmodel->synctype,0,2);
 698         loadmodel->flags = LittleLong (pinmodel->flags);
 699
 700         for (i = 0;i < 3;i++)
 701         {
 702                 loadmodel->surfmesh.num_morphmdlframescale[i] = LittleFloat (pinmodel->scale[i]);
 703                 loadmodel->surfmesh.num_morphmdlframetranslate[i] = LittleFloat (pinmodel->scale_origin[i]);
 704         }
 705
 706         startskins = datapointer;
 707         totalskins = 0;
 708         for (i = 0;i < loadmodel->numskins;i++)
 709         {
 710                 pinskintype = (daliasskintype_t *)datapointer;
 711                 datapointer += sizeof(daliasskintype_t);
 712                 if (LittleLong(pinskintype->type) == ALIAS_SKIN_SINGLE)
 713                         groupskins = 1;
 714                 else
 715                 {
 716                         pinskingroup = (daliasskingroup_t *)datapointer;
 717                         datapointer += sizeof(daliasskingroup_t);
 718                         groupskins = LittleLong(pinskingroup->numskins);
 719                         datapointer += sizeof(daliasskininterval_t) * groupskins;
 720                 }
 721
 722                 for (j = 0;j < groupskins;j++)
 723                 {
 724                         datapointer += skinwidth * skinheight;
 725                         totalskins++;
 726                 }
 727         }
 728
 729         pinstverts = (stvert_t *)datapointer;
 730         datapointer += sizeof(stvert_t) * numverts;
 731
 732         pintriangles = (dtriangle_t *)datapointer;
 733         datapointer += sizeof(dtriangle_t) * loadmodel->surfmesh.num_triangles;
 734
 735         startframes = datapointer;
 736         loadmodel->surfmesh.num_morphframes = 0;
 737         for (i = 0;i < loadmodel->numframes;i++)
 738         {
 739                 pinframetype = (daliasframetype_t *)datapointer;
 740                 datapointer += sizeof(daliasframetype_t);
 741                 if (LittleLong (pinframetype->type) == ALIAS_SINGLE)
 742                         groupframes = 1;
 743                 else
 744                 {
 745                         pinframegroup = (daliasgroup_t *)datapointer;
 746                         datapointer += sizeof(daliasgroup_t);
 747                         groupframes = LittleLong(pinframegroup->numframes);
 748                         datapointer += sizeof(daliasinterval_t) * groupframes;
 749                 }
 750
 751                 for (j = 0;j < groupframes;j++)
 752                 {
 753                         datapointer += sizeof(daliasframe_t);
 754                         datapointer += sizeof(trivertx_t) * numverts;
 755                         loadmodel->surfmesh.num_morphframes++;
 756                 }
 757         }
 758
 759         // store texture coordinates into temporary array, they will be stored
 760         // after usage is determined (triangle data)
 761         vertst = (float *)Mem_Alloc(tempmempool, numverts * 2 * sizeof(float[2]));
 762         vertremap = (int *)Mem_Alloc(tempmempool, numverts * 3 * sizeof(int));
 763         vertonseam = vertremap + numverts * 2;
 764
 765         scales = 1.0 / skinwidth;
 766         scalet = 1.0 / skinheight;
 767         for (i = 0;i < numverts;i++)
 768         {
 769                 vertonseam[i] = LittleLong(pinstverts[i].onseam);
 770                 vertst[i*2+0] = (LittleLong(pinstverts[i].s) + 0.5) * scales;
 771                 vertst[i*2+1] = (LittleLong(pinstverts[i].t) + 0.5) * scalet;
 772                 vertst[(i+numverts)*2+0] = vertst[i*2+0] + 0.5;
 773                 vertst[(i+numverts)*2+1] = vertst[i*2+1];
 774         }
 775
 776 // load triangle data
 777         loadmodel->surfmesh.data_element3i = (int *)Mem_Alloc(loadmodel->mempool, sizeof(int[3]) * loadmodel->surfmesh.num_triangles);
 778
 779         // read the triangle elements
 780         for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
 781                 for (j = 0;j < 3;j++)
 782                         loadmodel->surfmesh.data_element3i[i*3+j] = LittleLong(pintriangles[i].vertindex[j]);
 783         // validate (note numverts is used because this is the original data)
 784         Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, numverts, __FILE__, __LINE__);
 785         // now butcher the elements according to vertonseam and tri->facesfront
 786         // and then compact the vertex set to remove duplicates
 787         for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
 788                 if (!LittleLong(pintriangles[i].facesfront)) // backface
 789                         for (j = 0;j < 3;j++)
 790                                 if (vertonseam[loadmodel->surfmesh.data_element3i[i*3+j]])
 791                                         loadmodel->surfmesh.data_element3i[i*3+j] += numverts;
 792         // count the usage
 793         // (this uses vertremap to count usage to save some memory)
 794         for (i = 0;i < numverts*2;i++)
 795                 vertremap[i] = 0;
 796         for (i = 0;i < loadmodel->surfmesh.num_triangles*3;i++)
 797                 vertremap[loadmodel->surfmesh.data_element3i[i]]++;
 798         // build remapping table and compact array
 799         loadmodel->surfmesh.num_vertices = 0;
 800         for (i = 0;i < numverts*2;i++)
 801         {
 802                 if (vertremap[i])
 803                 {
 804                         vertremap[i] = loadmodel->surfmesh.num_vertices;
 805                         vertst[loadmodel->surfmesh.num_vertices*2+0] = vertst[i*2+0];
 806                         vertst[loadmodel->surfmesh.num_vertices*2+1] = vertst[i*2+1];
 807                         loadmodel->surfmesh.num_vertices++;
 808                 }
 809                 else
 810                         vertremap[i] = -1; // not used at all
 811         }
 812         // remap the elements to the new vertex set
 813         for (i = 0;i < loadmodel->surfmesh.num_triangles * 3;i++)
 814                 loadmodel->surfmesh.data_element3i[i] = vertremap[loadmodel->surfmesh.data_element3i[i]];
 815         // store the texture coordinates
 816         loadmodel->surfmesh.data_texcoordtexture2f = (float *)Mem_Alloc(loadmodel->mempool, sizeof(float[2]) * loadmodel->surfmesh.num_vertices);
 817         for (i = 0;i < loadmodel->surfmesh.num_vertices;i++)
 818         {
 819                 loadmodel->surfmesh.data_texcoordtexture2f[i*2+0] = vertst[i*2+0];
 820                 loadmodel->surfmesh.data_texcoordtexture2f[i*2+1] = vertst[i*2+1];
 821         }
 822
 823 // load the frames
 824         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
 825         loadmodel->surfmesh.data_morphmdlvertex = (trivertx_t *)Mem_Alloc(loadmodel->mempool, sizeof(trivertx_t) * loadmodel->surfmesh.num_morphframes * loadmodel->surfmesh.num_vertices);
 826         loadmodel->surfmesh.data_neighbor3i = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_triangles * sizeof(int[3]));
 827         Mod_MDL_LoadFrames (startframes, numverts, vertremap);
 828         Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
 829         Mod_Alias_CalculateBoundingBox();
 830         Mod_Alias_Mesh_CompileFrameZero();
 831
 832         Mem_Free(vertst);
 833         Mem_Free(vertremap);
 834
 835         // load the skins
 836         skinfiles = Mod_LoadSkinFiles();
 837         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numskins * sizeof(animscene_t));
 838         loadmodel->num_textures = loadmodel->num_surfaces;
 839         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 840         if (skinfiles)
 841         {
 842                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
 843                 Mod_FreeSkinFiles(skinfiles);
 844                 for (i = 0;i < loadmodel->numskins;i++)
 845                 {
 846                         loadmodel->skinscenes[i].firstframe = i;
 847                         loadmodel->skinscenes[i].framecount = 1;
 848                         loadmodel->skinscenes[i].loop = true;
 849                         loadmodel->skinscenes[i].framerate = 10;
 850                 }
 851         }
 852         else
 853         {
 854                 totalskins = 0;
 855                 datapointer = startskins;
 856                 for (i = 0;i < loadmodel->numskins;i++)
 857                 {
 858                         pinskintype = (daliasskintype_t *)datapointer;
 859                         datapointer += sizeof(daliasskintype_t);
 860
 861                         if (pinskintype->type == ALIAS_SKIN_SINGLE)
 862                         {
 863                                 groupskins = 1;
 864                                 interval = 0.1f;
 865                         }
 866                         else
 867                         {
 868                                 pinskingroup = (daliasskingroup_t *)datapointer;
 869                                 datapointer += sizeof(daliasskingroup_t);
 870
 871                                 groupskins = LittleLong (pinskingroup->numskins);
 872
 873                                 pinskinintervals = (daliasskininterval_t *)datapointer;
 874                                 datapointer += sizeof(daliasskininterval_t) * groupskins;
 875
 876                                 interval = LittleFloat(pinskinintervals[0].interval);
 877                                 if (interval < 0.01f)
 878                                 {
 879                                         Con_Printf("%s has an invalid interval %f, changing to 0.1\n", loadmodel->name, interval);
 880                                         interval = 0.1f;
 881                                 }
 882                         }
 883
 884                         sprintf(loadmodel->skinscenes[i].name, "skin %i", i);
 885                         loadmodel->skinscenes[i].firstframe = totalskins;
 886                         loadmodel->skinscenes[i].framecount = groupskins;
 887                         loadmodel->skinscenes[i].framerate = 1.0f / interval;
 888                         loadmodel->skinscenes[i].loop = true;
 889
 890                         for (j = 0;j < groupskins;j++)
 891                         {
 892                                 if (groupskins > 1)
 893                                         sprintf (name, "%s_%i_%i", loadmodel->name, i, j);
 894                                 else
 895                                         sprintf (name, "%s_%i", loadmodel->name, i);
 896                                 if (!Mod_LoadSkinFrame(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP, true, true))
 897                                         Mod_LoadSkinFrame_Internal(&tempskinframe, name, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_PICMIP, true, r_fullbrights.integer, (unsigned char *)datapointer, skinwidth, skinheight, 8, NULL, NULL);
 898                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 899                                 datapointer += skinwidth * skinheight;
 900                                 totalskins++;
 901                         }
 902                 }
 903                 // check for skins that don't exist in the model, but do exist as external images
 904                 // (this was added because yummyluv kept pestering me about support for it)
 905                 while (Mod_LoadSkinFrame(&tempskinframe, va("%s_%i", loadmodel->name, loadmodel->numskins), (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PICMIP, true, true))
 906                 {
 907                         // expand the arrays to make room
 908                         tempskinscenes = loadmodel->skinscenes;
 909                         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, (loadmodel->numskins + 1) * sizeof(animscene_t));
 910                         memcpy(loadmodel->skinscenes, tempskinscenes, loadmodel->numskins * sizeof(animscene_t));
 911                         Mem_Free(tempskinscenes);
 912
 913                         tempaliasskins = loadmodel->data_textures;
 914                         loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * (totalskins + 1) * sizeof(texture_t));
 915                         memcpy(loadmodel->data_textures, tempaliasskins, loadmodel->num_surfaces * totalskins * sizeof(texture_t));
 916                         Mem_Free(tempaliasskins);
 917
 918                         // store the info about the new skin
 919                         Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + totalskins * loadmodel->num_surfaces, &tempskinframe);
 920                         strlcpy(loadmodel->skinscenes[loadmodel->numskins].name, name, sizeof(loadmodel->skinscenes[loadmodel->numskins].name));
 921                         loadmodel->skinscenes[loadmodel->numskins].firstframe = totalskins;
 922                         loadmodel->skinscenes[loadmodel->numskins].framecount = 1;
 923                         loadmodel->skinscenes[loadmodel->numskins].framerate = 10.0f;
 924                         loadmodel->skinscenes[loadmodel->numskins].loop = true;
 925
 926                         //increase skin counts
 927                         loadmodel->numskins++;
 928                         totalskins++;
 929                 }
 930         }
 931
 932         surface = loadmodel->data_surfaces;
 933         surface->texture = loadmodel->data_textures;
 934         surface->num_firsttriangle = 0;
 935         surface->num_triangles = loadmodel->surfmesh.num_triangles;
 936         surface->num_firstvertex = 0;
 937         surface->num_vertices = loadmodel->surfmesh.num_vertices;
 938
 939         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
 940 }
 941
 942 void Mod_IDP2_Load(model_t *mod, void *buffer, void *bufferend)
 943 {
 944         int i, j, hashindex, numxyz, numst, xyz, st, skinwidth, skinheight, *vertremap, version, end;
 945         float iskinwidth, iskinheight;
 946         unsigned char *data;
 947         msurface_t *surface;
 948         md2_t *pinmodel;
 949         unsigned char *base, *datapointer;
 950         md2frame_t *pinframe;
 951         char *inskin;
 952         md2triangle_t *intri;
 953         unsigned short *inst;
 954         struct md2verthash_s
 955         {
 956                 struct md2verthash_s *next;
 957                 unsigned short xyz;
 958                 unsigned short st;
 959         }
 960         *hash, **md2verthash, *md2verthashdata;
 961         skinframe_t tempskinframe;
 962         skinfile_t *skinfiles;
 963
 964         pinmodel = (md2_t *)buffer;
 965         base = (unsigned char *)buffer;
 966
 967         version = LittleLong (pinmodel->version);
 968         if (version != MD2ALIAS_VERSION)
 969                 Host_Error ("%s has wrong version number (%i should be %i)",
 970                         loadmodel->name, version, MD2ALIAS_VERSION);
 971
 972         loadmodel->type = mod_alias;
 973         loadmodel->DrawSky = NULL;
 974         loadmodel->Draw = R_Q1BSP_Draw;
 975         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
 976         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
 977         loadmodel->DrawLight = R_Q1BSP_DrawLight;
 978         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
 979
 980         if (LittleLong(pinmodel->num_tris) < 1 || LittleLong(pinmodel->num_tris) > 65536)
 981                 Host_Error ("%s has invalid number of triangles: %i", loadmodel->name, LittleLong(pinmodel->num_tris));
 982         if (LittleLong(pinmodel->num_xyz) < 1 || LittleLong(pinmodel->num_xyz) > 65536)
 983                 Host_Error ("%s has invalid number of vertices: %i", loadmodel->name, LittleLong(pinmodel->num_xyz));
 984         if (LittleLong(pinmodel->num_frames) < 1 || LittleLong(pinmodel->num_frames) > 65536)
 985                 Host_Error ("%s has invalid number of frames: %i", loadmodel->name, LittleLong(pinmodel->num_frames));
 986         if (LittleLong(pinmodel->num_skins) < 0 || LittleLong(pinmodel->num_skins) > 256)
 987                 Host_Error ("%s has invalid number of skins: %i", loadmodel->name, LittleLong(pinmodel->num_skins));
 988
 989         end = LittleLong(pinmodel->ofs_end);
 990         if (LittleLong(pinmodel->num_skins) >= 1 && (LittleLong(pinmodel->ofs_skins) <= 0 || LittleLong(pinmodel->ofs_skins) >= end))
 991                 Host_Error ("%s is not a valid model", loadmodel->name);
 992         if (LittleLong(pinmodel->ofs_st) <= 0 || LittleLong(pinmodel->ofs_st) >= end)
 993                 Host_Error ("%s is not a valid model", loadmodel->name);
 994         if (LittleLong(pinmodel->ofs_tris) <= 0 || LittleLong(pinmodel->ofs_tris) >= end)
 995                 Host_Error ("%s is not a valid model", loadmodel->name);
 996         if (LittleLong(pinmodel->ofs_frames) <= 0 || LittleLong(pinmodel->ofs_frames) >= end)
 997                 Host_Error ("%s is not a valid model", loadmodel->name);
 998         if (LittleLong(pinmodel->ofs_glcmds) <= 0 || LittleLong(pinmodel->ofs_glcmds) >= end)
 999                 Host_Error ("%s is not a valid model", loadmodel->name);
1000
1001         loadmodel->numskins = LittleLong(pinmodel->num_skins);
1002         numxyz = LittleLong(pinmodel->num_xyz);
1003         numst = LittleLong(pinmodel->num_st);
1004         loadmodel->surfmesh.num_triangles = LittleLong(pinmodel->num_tris);
1005         loadmodel->numframes = LittleLong(pinmodel->num_frames);
1006         loadmodel->surfmesh.num_morphframes = loadmodel->numframes;
1007         skinwidth = LittleLong(pinmodel->skinwidth);
1008         skinheight = LittleLong(pinmodel->skinheight);
1009         iskinwidth = 1.0f / skinwidth;
1010         iskinheight = 1.0f / skinheight;
1011
1012         loadmodel->num_surfaces = 1;
1013         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1014         data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->numframes * sizeof(animscene_t) + loadmodel->numframes * sizeof(float[6]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]) + loadmodel->surfmesh.num_triangles * sizeof(int[3]));
1015         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1016         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
1017         loadmodel->surfacelist[0] = 0;
1018         loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
1019         loadmodel->surfmesh.data_morphmd2framesize6f = (float *)data;data += loadmodel->numframes * sizeof(float[6]);
1020         loadmodel->surfmesh.data_element3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
1021         loadmodel->surfmesh.data_neighbor3i = (int *)data;data += loadmodel->surfmesh.num_triangles * sizeof(int[3]);
1022
1023         loadmodel->flags = 0; // there are no MD2 flags
1024         loadmodel->synctype = ST_RAND;
1025
1026         // load the skins
1027         inskin = (char *)(base + LittleLong(pinmodel->ofs_skins));
1028         skinfiles = Mod_LoadSkinFiles();
1029         if (skinfiles)
1030         {
1031                 loadmodel->num_textures = loadmodel->num_surfaces;
1032                 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
1033                 Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures, skinfiles, "default", "");
1034                 Mod_FreeSkinFiles(skinfiles);
1035         }
1036         else if (loadmodel->numskins)
1037         {
1038                 // skins found (most likely not a player model)
1039                 loadmodel->num_textures = loadmodel->num_surfaces;
1040                 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
1041                 for (i = 0;i < loadmodel->numskins;i++, inskin += MD2_SKINNAME)
1042                 {
1043                         if (Mod_LoadSkinFrame(&tempskinframe, inskin, (r_mipskins.integer ? TEXF_MIPMAP : 0) | TEXF_ALPHA | TEXF_PRECACHE | TEXF_PICMIP, true, true))
1044                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, &tempskinframe);
1045                         else
1046                         {
1047                                 Con_Printf("%s is missing skin \"%s\"\n", loadmodel->name, inskin);
1048                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i * loadmodel->num_surfaces, NULL);
1049                         }
1050                 }
1051         }
1052         else
1053         {
1054                 // no skins (most likely a player model)
1055                 loadmodel->numskins = 1;
1056                 loadmodel->num_textures = loadmodel->num_surfaces;
1057                 loadmodel->data_textures = (texture_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t));
1058                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures, NULL);
1059         }
1060
1061         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1062         for (i = 0;i < loadmodel->numskins;i++)
1063         {
1064                 loadmodel->skinscenes[i].firstframe = i;
1065                 loadmodel->skinscenes[i].framecount = 1;
1066                 loadmodel->skinscenes[i].loop = true;
1067                 loadmodel->skinscenes[i].framerate = 10;
1068         }
1069
1070         // load the triangles and stvert data
1071         inst = (unsigned short *)(base + LittleLong(pinmodel->ofs_st));
1072         intri = (md2triangle_t *)(base + LittleLong(pinmodel->ofs_tris));
1073         md2verthash = (struct md2verthash_s **)Mem_Alloc(tempmempool, 65536 * sizeof(hash));
1074         md2verthashdata = (struct md2verthash_s *)Mem_Alloc(tempmempool, loadmodel->surfmesh.num_triangles * 3 * sizeof(*hash));
1075         // swap the triangle list
1076         loadmodel->surfmesh.num_vertices = 0;
1077         for (i = 0;i < loadmodel->surfmesh.num_triangles;i++)
1078         {
1079                 for (j = 0;j < 3;j++)
1080                 {
1081                         xyz = (unsigned short) LittleShort (intri[i].index_xyz[j]);
1082                         st = (unsigned short) LittleShort (intri[i].index_st[j]);
1083                         if (xyz >= numxyz)
1084                         {
1085                                 Con_Printf("%s has an invalid xyz index (%i) on triangle %i, resetting to 0\n", loadmodel->name, xyz, i);
1086                                 xyz = 0;
1087                         }
1088                         if (st >= numst)
1089                         {
1090                                 Con_Printf("%s has an invalid st index (%i) on triangle %i, resetting to 0\n", loadmodel->name, st, i);
1091                                 st = 0;
1092                         }
1093                         hashindex = (xyz * 256 + st) & 65535;
1094                         for (hash = md2verthash[hashindex];hash;hash = hash->next)
1095                                 if (hash->xyz == xyz && hash->st == st)
1096                                         break;
1097                         if (hash == NULL)
1098                         {
1099                                 hash = md2verthashdata + loadmodel->surfmesh.num_vertices++;
1100                                 hash->xyz = xyz;
1101                                 hash->st = st;
1102                                 hash->next = md2verthash[hashindex];
1103                                 md2verthash[hashindex] = hash;
1104                         }
1105                         loadmodel->surfmesh.data_element3i[i*3+j] = (hash - md2verthashdata);
1106                 }
1107         }
1108
1109         vertremap = (int *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(int));
1110         data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->surfmesh.num_vertices * sizeof(float[2]) + loadmodel->surfmesh.num_vertices * loadmodel->surfmesh.num_morphframes * sizeof(trivertx_t));
1111         loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += loadmodel->surfmesh.num_vertices * sizeof(float[2]);
1112         loadmodel->surfmesh.data_morphmdlvertex = (trivertx_t *)data;data += loadmodel->surfmesh.num_vertices * loadmodel->surfmesh.num_morphframes * sizeof(trivertx_t);
1113         for (i = 0;i < loadmodel->surfmesh.num_vertices;i++)
1114         {
1115                 int sts, stt;
1116                 hash = md2verthashdata + i;
1117                 vertremap[i] = hash->xyz;
1118                 sts = LittleShort(inst[hash->st*2+0]);
1119                 stt = LittleShort(inst[hash->st*2+1]);
1120                 if (sts < 0 || sts >= skinwidth || stt < 0 || stt >= skinheight)
1121                 {
1122                         Con_Printf("%s has an invalid skin coordinate (%i %i) on vert %i, changing to 0 0\n", loadmodel->name, sts, stt, i);
1123                         sts = 0;
1124                         stt = 0;
1125                 }
1126                 loadmodel->surfmesh.data_texcoordtexture2f[i*2+0] = sts * iskinwidth;
1127                 loadmodel->surfmesh.data_texcoordtexture2f[i*2+1] = stt * iskinheight;
1128         }
1129
1130         Mem_Free(md2verthash);
1131         Mem_Free(md2verthashdata);
1132
1133         // load the frames
1134         datapointer = (base + LittleLong(pinmodel->ofs_frames));
1135         for (i = 0;i < loadmodel->surfmesh.num_morphframes;i++)
1136         {
1137                 int k;
1138                 trivertx_t *v;
1139                 trivertx_t *out;
1140                 pinframe = (md2frame_t *)datapointer;
1141                 datapointer += sizeof(md2frame_t);
1142                 // store the frame scale/translate into the appropriate array
1143                 for (j = 0;j < 3;j++)
1144                 {
1145                         loadmodel->surfmesh.data_morphmd2framesize6f[i*6+j] = LittleFloat(pinframe->scale[j]);
1146                         loadmodel->surfmesh.data_morphmd2framesize6f[i*6+3+j] = LittleFloat(pinframe->translate[j]);
1147                 }
1148                 // convert the vertices
1149                 v = (trivertx_t *)datapointer;
1150                 out = loadmodel->surfmesh.data_morphmdlvertex + i * loadmodel->surfmesh.num_vertices;
1151                 for (k = 0;k < loadmodel->surfmesh.num_vertices;k++)
1152                         out[k] = v[vertremap[k]];
1153                 datapointer += numxyz * sizeof(trivertx_t);
1154
1155                 strlcpy(loadmodel->animscenes[i].name, pinframe->name, sizeof(loadmodel->animscenes[i].name));
1156                 loadmodel->animscenes[i].firstframe = i;
1157                 loadmodel->animscenes[i].framecount = 1;
1158                 loadmodel->animscenes[i].framerate = 10;
1159                 loadmodel->animscenes[i].loop = true;
1160         }
1161
1162         Mem_Free(vertremap);
1163
1164         Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
1165         Mod_Alias_CalculateBoundingBox();
1166         Mod_Alias_Mesh_CompileFrameZero();
1167
1168         surface = loadmodel->data_surfaces;
1169         surface->texture = loadmodel->data_textures;
1170         surface->num_firsttriangle = 0;
1171         surface->num_triangles = loadmodel->surfmesh.num_triangles;
1172         surface->num_firstvertex = 0;
1173         surface->num_vertices = loadmodel->surfmesh.num_vertices;
1174
1175         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
1176 }
1177
1178 void Mod_IDP3_Load(model_t *mod, void *buffer, void *bufferend)
1179 {
1180         int i, j, k, version, meshvertices, meshtriangles;
1181         unsigned char *data;
1182         msurface_t *surface;
1183         md3modelheader_t *pinmodel;
1184         md3frameinfo_t *pinframe;
1185         md3mesh_t *pinmesh;
1186         md3tag_t *pintag;
1187         skinfile_t *skinfiles;
1188
1189         pinmodel = (md3modelheader_t *)buffer;
1190
1191         if (memcmp(pinmodel->identifier, "IDP3", 4))
1192                 Host_Error ("%s is not a MD3 (IDP3) file", loadmodel->name);
1193         version = LittleLong (pinmodel->version);
1194         if (version != MD3VERSION)
1195                 Host_Error ("%s has wrong version number (%i should be %i)",
1196                         loadmodel->name, version, MD3VERSION);
1197
1198         skinfiles = Mod_LoadSkinFiles();
1199         if (loadmodel->numskins < 1)
1200                 loadmodel->numskins = 1;
1201
1202         loadmodel->type = mod_alias;
1203         loadmodel->DrawSky = NULL;
1204         loadmodel->Draw = R_Q1BSP_Draw;
1205         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1206         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1207         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1208         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1209         loadmodel->flags = LittleLong(pinmodel->flags);
1210         loadmodel->synctype = ST_RAND;
1211
1212         // set up some global info about the model
1213         loadmodel->numframes = LittleLong(pinmodel->num_frames);
1214         loadmodel->num_surfaces = LittleLong(pinmodel->num_meshes);
1215
1216         // make skinscenes for the skins (no groups)
1217         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1218         for (i = 0;i < loadmodel->numskins;i++)
1219         {
1220                 loadmodel->skinscenes[i].firstframe = i;
1221                 loadmodel->skinscenes[i].framecount = 1;
1222                 loadmodel->skinscenes[i].loop = true;
1223                 loadmodel->skinscenes[i].framerate = 10;
1224         }
1225
1226         // load frameinfo
1227         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, loadmodel->numframes * sizeof(animscene_t));
1228         for (i = 0, pinframe = (md3frameinfo_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_frameinfo));i < loadmodel->numframes;i++, pinframe++)
1229         {
1230                 strlcpy(loadmodel->animscenes[i].name, pinframe->name, sizeof(loadmodel->animscenes[i].name));
1231                 loadmodel->animscenes[i].firstframe = i;
1232                 loadmodel->animscenes[i].framecount = 1;
1233                 loadmodel->animscenes[i].framerate = 10;
1234                 loadmodel->animscenes[i].loop = true;
1235         }
1236
1237         // load tags
1238         loadmodel->num_tagframes = loadmodel->numframes;
1239         loadmodel->num_tags = LittleLong(pinmodel->num_tags);
1240         loadmodel->data_tags = (aliastag_t *)Mem_Alloc(loadmodel->mempool, loadmodel->num_tagframes * loadmodel->num_tags * sizeof(aliastag_t));
1241         for (i = 0, pintag = (md3tag_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_tags));i < loadmodel->num_tagframes * loadmodel->num_tags;i++, pintag++)
1242         {
1243                 strlcpy(loadmodel->data_tags[i].name, pintag->name, sizeof(loadmodel->data_tags[i].name));
1244                 for (j = 0;j < 9;j++)
1245                         loadmodel->data_tags[i].matrixgl[j] = LittleFloat(pintag->rotationmatrix[j]);
1246                 for (j = 0;j < 3;j++)
1247                         loadmodel->data_tags[i].matrixgl[9+j] = LittleFloat(pintag->origin[j]);
1248                 //Con_Printf("model \"%s\" frame #%i tag #%i \"%s\"\n", loadmodel->name, i / loadmodel->num_tags, i % loadmodel->num_tags, loadmodel->data_tags[i].name);
1249         }
1250
1251         // load meshes
1252         meshvertices = 0;
1253         meshtriangles = 0;
1254         for (i = 0, pinmesh = (md3mesh_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->num_surfaces;i++, pinmesh = (md3mesh_t *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_end)))
1255         {
1256                 if (memcmp(pinmesh->identifier, "IDP3", 4))
1257                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)");
1258                 if (LittleLong(pinmesh->num_frames) != loadmodel->numframes)
1259                         Host_Error("Mod_IDP3_Load: mesh numframes differs from header");
1260                 meshvertices += LittleLong(pinmesh->num_vertices);
1261                 meshtriangles += LittleLong(pinmesh->num_triangles);
1262         }
1263
1264         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1265         loadmodel->num_textures = loadmodel->num_surfaces;
1266         data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * sizeof(float[2]) + meshvertices * loadmodel->numframes * sizeof(md3vertex_t));
1267         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1268         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
1269         loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1270         loadmodel->surfmesh.num_vertices = meshvertices;
1271         loadmodel->surfmesh.num_triangles = meshtriangles;
1272         loadmodel->surfmesh.num_morphframes = loadmodel->numframes; // TODO: remove?
1273         loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
1274         loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
1275         loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
1276         loadmodel->surfmesh.data_morphmd3vertex = (md3vertex_t *)data;data += meshvertices * loadmodel->numframes * sizeof(md3vertex_t);
1277
1278         meshvertices = 0;
1279         meshtriangles = 0;
1280         for (i = 0, pinmesh = (md3mesh_t *)((unsigned char *)pinmodel + LittleLong(pinmodel->lump_meshes));i < loadmodel->num_surfaces;i++, pinmesh = (md3mesh_t *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_end)))
1281         {
1282                 if (memcmp(pinmesh->identifier, "IDP3", 4))
1283                         Host_Error("Mod_IDP3_Load: invalid mesh identifier (not IDP3)");
1284                 loadmodel->surfacelist[i] = i;
1285                 surface = loadmodel->data_surfaces + i;
1286                 surface->texture = loadmodel->data_textures + i;
1287                 surface->num_firsttriangle = meshtriangles;
1288                 surface->num_triangles = LittleLong(pinmesh->num_triangles);
1289                 surface->num_firstvertex = meshvertices;
1290                 surface->num_vertices = LittleLong(pinmesh->num_vertices);
1291                 meshvertices += surface->num_vertices;
1292                 meshtriangles += surface->num_triangles;
1293
1294                 for (j = 0;j < surface->num_triangles * 3;j++)
1295                         loadmodel->surfmesh.data_element3i[j + surface->num_firsttriangle * 3] = surface->num_firstvertex + LittleLong(((int *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_elements)))[j]);
1296                 for (j = 0;j < surface->num_vertices;j++)
1297                 {
1298                         loadmodel->surfmesh.data_texcoordtexture2f[(j + surface->num_firstvertex) * 2 + 0] = LittleFloat(((float *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 0]);
1299                         loadmodel->surfmesh.data_texcoordtexture2f[(j + surface->num_firstvertex) * 2 + 1] = LittleFloat(((float *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_texcoords)))[j * 2 + 1]);
1300                 }
1301                 for (j = 0;j < loadmodel->numframes;j++)
1302                 {
1303                         const md3vertex_t *in = (md3vertex_t *)((unsigned char *)pinmesh + LittleLong(pinmesh->lump_framevertices)) + j * surface->num_vertices;
1304                         md3vertex_t *out = loadmodel->surfmesh.data_morphmd3vertex + surface->num_firstvertex + j * loadmodel->surfmesh.num_vertices;
1305                         for (k = 0;k < surface->num_vertices;k++, in++, out++)
1306                         {
1307                                 out->origin[0] = LittleShort(in->origin[0]);
1308                                 out->origin[1] = LittleShort(in->origin[1]);
1309                                 out->origin[2] = LittleShort(in->origin[2]);
1310                                 out->pitch = in->pitch;
1311                                 out->yaw = in->yaw;
1312                         }
1313                 }
1314
1315                 if (LittleLong(pinmesh->num_shaders) >= 1)
1316                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, pinmesh->name, ((md3shader_t *)((unsigned char *) pinmesh + LittleLong(pinmesh->lump_shaders)))->name);
1317                 else
1318                         for (j = 0;j < loadmodel->numskins;j++)
1319                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1320
1321                 Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
1322         }
1323         Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
1324         Mod_Alias_Mesh_CompileFrameZero();
1325         Mod_Alias_CalculateBoundingBox();
1326         Mod_FreeSkinFiles(skinfiles);
1327
1328         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
1329 }
1330
1331 void Mod_ZYMOTICMODEL_Load(model_t *mod, void *buffer, void *bufferend)
1332 {
1333         zymtype1header_t *pinmodel, *pheader;
1334         unsigned char *pbase;
1335         int i, j, k, numposes, meshvertices, meshtriangles, *bonecount, *vertbonecounts, count, *renderlist, *renderlistend, *outelements;
1336         float modelradius, corner[2], *poses, *intexcoord2f, *outtexcoord2f, *bonepose;
1337         zymvertex_t *verts, *vertdata;
1338         zymscene_t *scene;
1339         zymbone_t *bone;
1340         char *shadername;
1341         skinfile_t *skinfiles;
1342         unsigned char *data;
1343         msurface_t *surface;
1344
1345         pinmodel = (zymtype1header_t *)buffer;
1346         pbase = (unsigned char *)buffer;
1347         if (memcmp(pinmodel->id, "ZYMOTICMODEL", 12))
1348                 Host_Error ("Mod_ZYMOTICMODEL_Load: %s is not a zymotic model");
1349         if (BigLong(pinmodel->type) != 1)
1350                 Host_Error ("Mod_ZYMOTICMODEL_Load: only type 1 (skeletal pose) models are currently supported (name = %s)", loadmodel->name);
1351
1352         loadmodel->type = mod_alias;
1353         loadmodel->flags = 0; // there are no flags on zym models
1354         loadmodel->synctype = ST_RAND;
1355
1356         // byteswap header
1357         pheader = pinmodel;
1358         pheader->type = BigLong(pinmodel->type);
1359         pheader->filesize = BigLong(pinmodel->filesize);
1360         pheader->mins[0] = BigFloat(pinmodel->mins[0]);
1361         pheader->mins[1] = BigFloat(pinmodel->mins[1]);
1362         pheader->mins[2] = BigFloat(pinmodel->mins[2]);
1363         pheader->maxs[0] = BigFloat(pinmodel->maxs[0]);
1364         pheader->maxs[1] = BigFloat(pinmodel->maxs[1]);
1365         pheader->maxs[2] = BigFloat(pinmodel->maxs[2]);
1366         pheader->radius = BigFloat(pinmodel->radius);
1367         pheader->numverts = BigLong(pinmodel->numverts);
1368         pheader->numtris = BigLong(pinmodel->numtris);
1369         pheader->numshaders = BigLong(pinmodel->numshaders);
1370         pheader->numbones = BigLong(pinmodel->numbones);
1371         pheader->numscenes = BigLong(pinmodel->numscenes);
1372         pheader->lump_scenes.start = BigLong(pinmodel->lump_scenes.start);
1373         pheader->lump_scenes.length = BigLong(pinmodel->lump_scenes.length);
1374         pheader->lump_poses.start = BigLong(pinmodel->lump_poses.start);
1375         pheader->lump_poses.length = BigLong(pinmodel->lump_poses.length);
1376         pheader->lump_bones.start = BigLong(pinmodel->lump_bones.start);
1377         pheader->lump_bones.length = BigLong(pinmodel->lump_bones.length);
1378         pheader->lump_vertbonecounts.start = BigLong(pinmodel->lump_vertbonecounts.start);
1379         pheader->lump_vertbonecounts.length = BigLong(pinmodel->lump_vertbonecounts.length);
1380         pheader->lump_verts.start = BigLong(pinmodel->lump_verts.start);
1381         pheader->lump_verts.length = BigLong(pinmodel->lump_verts.length);
1382         pheader->lump_texcoords.start = BigLong(pinmodel->lump_texcoords.start);
1383         pheader->lump_texcoords.length = BigLong(pinmodel->lump_texcoords.length);
1384         pheader->lump_render.start = BigLong(pinmodel->lump_render.start);
1385         pheader->lump_render.length = BigLong(pinmodel->lump_render.length);
1386         pheader->lump_shaders.start = BigLong(pinmodel->lump_shaders.start);
1387         pheader->lump_shaders.length = BigLong(pinmodel->lump_shaders.length);
1388         pheader->lump_trizone.start = BigLong(pinmodel->lump_trizone.start);
1389         pheader->lump_trizone.length = BigLong(pinmodel->lump_trizone.length);
1390
1391         if (pheader->numtris < 1 || pheader->numverts < 3 || pheader->numshaders < 1)
1392         {
1393                 Con_Printf("%s has no geometry\n");
1394                 return;
1395         }
1396         if (pheader->numscenes < 1 || pheader->lump_poses.length < (int)sizeof(float[3][4]))
1397         {
1398                 Con_Printf("%s has no animations\n");
1399                 return;
1400         }
1401
1402         loadmodel->DrawSky = NULL;
1403         loadmodel->Draw = R_Q1BSP_Draw;
1404         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1405         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1406         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1407         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1408
1409         loadmodel->numframes = pheader->numscenes;
1410         loadmodel->num_surfaces = pheader->numshaders;
1411
1412         skinfiles = Mod_LoadSkinFiles();
1413         if (loadmodel->numskins < 1)
1414                 loadmodel->numskins = 1;
1415
1416         // make skinscenes for the skins (no groups)
1417         loadmodel->skinscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numskins);
1418         for (i = 0;i < loadmodel->numskins;i++)
1419         {
1420                 loadmodel->skinscenes[i].firstframe = i;
1421                 loadmodel->skinscenes[i].framecount = 1;
1422                 loadmodel->skinscenes[i].loop = true;
1423                 loadmodel->skinscenes[i].framerate = 10;
1424         }
1425
1426         // model bbox
1427         modelradius = pheader->radius;
1428         for (i = 0;i < 3;i++)
1429         {
1430                 loadmodel->normalmins[i] = pheader->mins[i];
1431                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1432                 loadmodel->rotatedmins[i] = -modelradius;
1433                 loadmodel->rotatedmaxs[i] = modelradius;
1434         }
1435         corner[0] = max(fabs(loadmodel->normalmins[0]), fabs(loadmodel->normalmaxs[0]));
1436         corner[1] = max(fabs(loadmodel->normalmins[1]), fabs(loadmodel->normalmaxs[1]));
1437         loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = sqrt(corner[0]*corner[0]+corner[1]*corner[1]);
1438         if (loadmodel->yawmaxs[0] > modelradius)
1439                 loadmodel->yawmaxs[0] = loadmodel->yawmaxs[1] = modelradius;
1440         loadmodel->yawmins[0] = loadmodel->yawmins[1] = -loadmodel->yawmaxs[0];
1441         loadmodel->yawmins[2] = loadmodel->normalmins[2];
1442         loadmodel->yawmaxs[2] = loadmodel->normalmaxs[2];
1443         loadmodel->radius = modelradius;
1444         loadmodel->radius2 = modelradius * modelradius;
1445
1446         // go through the lumps, swapping things
1447
1448         //zymlump_t lump_scenes; // zymscene_t scene[numscenes]; // name and other information for each scene (see zymscene struct)
1449         loadmodel->animscenes = (animscene_t *)Mem_Alloc(loadmodel->mempool, sizeof(animscene_t) * loadmodel->numframes);
1450         scene = (zymscene_t *) (pheader->lump_scenes.start + pbase);
1451         numposes = pheader->lump_poses.length / pheader->numbones / sizeof(float[3][4]);
1452         for (i = 0;i < pheader->numscenes;i++)
1453         {
1454                 memcpy(loadmodel->animscenes[i].name, scene->name, 32);
1455                 loadmodel->animscenes[i].firstframe = BigLong(scene->start);
1456                 loadmodel->animscenes[i].framecount = BigLong(scene->length);
1457                 loadmodel->animscenes[i].framerate = BigFloat(scene->framerate);
1458                 loadmodel->animscenes[i].loop = (BigLong(scene->flags) & ZYMSCENEFLAG_NOLOOP) == 0;
1459                 if ((unsigned int) loadmodel->animscenes[i].firstframe >= (unsigned int) numposes)
1460                         Host_Error("%s scene->firstframe (%i) >= numposes (%i)", loadmodel->name, loadmodel->animscenes[i].firstframe, numposes);
1461                 if ((unsigned int) loadmodel->animscenes[i].firstframe + (unsigned int) loadmodel->animscenes[i].framecount > (unsigned int) numposes)
1462                         Host_Error("%s scene->firstframe (%i) + framecount (%i) >= numposes (%i)", loadmodel->name, loadmodel->animscenes[i].firstframe, loadmodel->animscenes[i].framecount, numposes);
1463                 if (loadmodel->animscenes[i].framerate < 0)
1464                         Host_Error("%s scene->framerate (%f) < 0", loadmodel->name, loadmodel->animscenes[i].framerate);
1465                 scene++;
1466         }
1467
1468         //zymlump_t lump_bones; // zymbone_t bone[numbones];
1469         loadmodel->num_bones = pheader->numbones;
1470         loadmodel->data_bones = (aliasbone_t *)Mem_Alloc(loadmodel->mempool, pheader->numbones * sizeof(aliasbone_t));
1471         bone = (zymbone_t *) (pheader->lump_bones.start + pbase);
1472         for (i = 0;i < pheader->numbones;i++)
1473         {
1474                 memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
1475                 loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
1476                 loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
1477                 if (loadmodel->data_bones[i].parent >= i)
1478                         Host_Error("%s bone[%i].parent >= %i", loadmodel->name, i, i);
1479         }
1480
1481         //zymlump_t lump_vertbonecounts; // int vertbonecounts[numvertices]; // how many bones influence each vertex (separate mainly to make this compress better)
1482         vertbonecounts = (int *)Mem_Alloc(loadmodel->mempool, pheader->numverts * sizeof(int));
1483         bonecount = (int *) (pheader->lump_vertbonecounts.start + pbase);
1484         for (i = 0;i < pheader->numverts;i++)
1485         {
1486                 vertbonecounts[i] = BigLong(bonecount[i]);
1487                 if (vertbonecounts[i] != 1)
1488                         Host_Error("%s bonecount[%i] != 1 (vertex weight support is impossible in this format)", loadmodel->name, i);
1489         }
1490
1491         loadmodel->num_poses = pheader->lump_poses.length / sizeof(float[3][4]);
1492
1493         meshvertices = pheader->numverts;
1494         meshtriangles = pheader->numtris;
1495
1496         loadmodel->nummodelsurfaces = loadmodel->num_surfaces;
1497         loadmodel->num_textures = loadmodel->num_surfaces;
1498         data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * sizeof(float[14]) + meshvertices * sizeof(int[4]) + meshvertices * sizeof(float[4]) + loadmodel->num_poses * sizeof(float[36]));
1499         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1500         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
1501         loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1502         loadmodel->surfmesh.num_vertices = meshvertices;
1503         loadmodel->surfmesh.num_triangles = meshtriangles;
1504         loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
1505         loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
1506         loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
1507         loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
1508         loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
1509         loadmodel->surfmesh.data_normal3f = (float *)data;data += meshvertices * sizeof(float[3]);
1510         loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
1511         loadmodel->surfmesh.data_vertexweightindex4i = (int *)data;data += meshvertices * sizeof(int[4]);
1512         loadmodel->surfmesh.data_vertexweightinfluence4f = (float *)data;data += meshvertices * sizeof(float[4]);
1513         loadmodel->data_poses = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
1514         loadmodel->data_basebonepose = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
1515         loadmodel->data_baseboneposeinverse = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
1516
1517         //zymlump_t lump_poses; // float pose[numposes][numbones][3][4]; // animation data
1518         poses = (float *) (pheader->lump_poses.start + pbase);
1519         for (i = 0;i < pheader->lump_poses.length / 4;i++)
1520                 loadmodel->data_poses[i] = BigFloat(poses[i]);
1521
1522         //zymlump_t lump_verts; // zymvertex_t vert[numvertices]; // see vertex struct
1523         verts = (zymvertex_t *)Mem_Alloc(loadmodel->mempool, pheader->lump_verts.length);
1524         vertdata = (zymvertex_t *) (pheader->lump_verts.start + pbase);
1525         // reconstruct frame 0 matrices to allow reconstruction of the base mesh
1526         // (converting from weight-blending skeletal animation to
1527         //  deformation-based skeletal animation)
1528         bonepose = (float *)Z_Malloc(loadmodel->num_bones * sizeof(float[12]));
1529         for (i = 0;i < loadmodel->num_bones;i++)
1530         {
1531                 const float *m = loadmodel->data_poses + i * 12;
1532                 if (loadmodel->data_bones[i].parent >= 0)
1533                         R_ConcatTransforms(bonepose + 12 * loadmodel->data_bones[i].parent, m, bonepose + 12 * i);
1534                 else
1535                         for (k = 0;k < 12;k++)
1536                                 bonepose[12*i+k] = m[k];
1537         }
1538         for (j = 0;j < pheader->numverts;j++)
1539         {
1540                 // this format really should have had a per vertexweight weight value...
1541                 // but since it does not, the weighting is completely ignored and
1542                 // only one weight is allowed per vertex
1543                 int boneindex = BigLong(vertdata[j].bonenum);
1544                 const float *m = bonepose + 12 * boneindex;
1545                 float relativeorigin[3];
1546                 relativeorigin[0] = BigFloat(vertdata[j].origin[0]);
1547                 relativeorigin[1] = BigFloat(vertdata[j].origin[1]);
1548                 relativeorigin[2] = BigFloat(vertdata[j].origin[2]);
1549                 // transform the vertex bone weight into the base mesh
1550                 loadmodel->surfmesh.data_vertex3f[j*3+0] = relativeorigin[0] * m[0] + relativeorigin[1] * m[1] + relativeorigin[2] * m[ 2] + m[ 3];
1551                 loadmodel->surfmesh.data_vertex3f[j*3+1] = relativeorigin[0] * m[4] + relativeorigin[1] * m[5] + relativeorigin[2] * m[ 6] + m[ 7];
1552                 loadmodel->surfmesh.data_vertex3f[j*3+2] = relativeorigin[0] * m[8] + relativeorigin[1] * m[9] + relativeorigin[2] * m[10] + m[11];
1553                 // store the weight as the primary weight on this vertex
1554                 loadmodel->surfmesh.data_vertexweightindex4i[j*4+0] = boneindex;
1555                 loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+0] = 1;
1556         }
1557         Z_Free(bonepose);
1558         // normals and tangents are calculated after elements are loaded
1559
1560         //zymlump_t lump_texcoords; // float texcoords[numvertices][2];
1561         outtexcoord2f = loadmodel->surfmesh.data_texcoordtexture2f;
1562         intexcoord2f = (float *) (pheader->lump_texcoords.start + pbase);
1563         for (i = 0;i < pheader->numverts;i++)
1564         {
1565                 outtexcoord2f[i*2+0] = BigFloat(intexcoord2f[i*2+0]);
1566                 // flip T coordinate for OpenGL
1567                 outtexcoord2f[i*2+1] = 1 - BigFloat(intexcoord2f[i*2+1]);
1568         }
1569
1570         //zymlump_t lump_trizone; // byte trizone[numtris]; // see trizone explanation
1571         //loadmodel->alias.zymdata_trizone = Mem_Alloc(loadmodel->mempool, pheader->numtris);
1572         //memcpy(loadmodel->alias.zymdata_trizone, (void *) (pheader->lump_trizone.start + pbase), pheader->numtris);
1573
1574         //zymlump_t lump_shaders; // char shadername[numshaders][32]; // shaders used on this model
1575         //zymlump_t lump_render; // int renderlist[rendersize]; // sorted by shader with run lengths (int count), shaders are sequentially used, each run can be used with glDrawElements (each triangle is 3 int indices)
1576         // byteswap, validate, and swap winding order of tris
1577         count = pheader->numshaders * sizeof(int) + pheader->numtris * sizeof(int[3]);
1578         if (pheader->lump_render.length != count)
1579                 Host_Error("%s renderlist is wrong size (%i bytes, should be %i bytes)", loadmodel->name, pheader->lump_render.length, count);
1580         renderlist = (int *) (pheader->lump_render.start + pbase);
1581         renderlistend = (int *) ((unsigned char *) renderlist + pheader->lump_render.length);
1582         meshtriangles = 0;
1583         for (i = 0;i < loadmodel->num_surfaces;i++)
1584         {
1585                 int firstvertex, lastvertex;
1586                 if (renderlist >= renderlistend)
1587                         Host_Error("%s corrupt renderlist (wrong size)", loadmodel->name);
1588                 count = BigLong(*renderlist);renderlist++;
1589                 if (renderlist + count * 3 > renderlistend || (i == pheader->numshaders - 1 && renderlist + count * 3 != renderlistend))
1590                         Host_Error("%s corrupt renderlist (wrong size)", loadmodel->name);
1591
1592                 loadmodel->surfacelist[i] = i;
1593                 surface = loadmodel->data_surfaces + i;
1594                 surface->texture = loadmodel->data_textures + i;
1595                 surface->num_firsttriangle = meshtriangles;
1596                 surface->num_triangles = count;
1597                 meshtriangles += surface->num_triangles;
1598
1599                 // load the elements
1600                 outelements = loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3;
1601                 for (j = 0;j < surface->num_triangles;j++, renderlist += 3)
1602                 {
1603                         outelements[j*3+2] = BigLong(renderlist[0]);
1604                         outelements[j*3+1] = BigLong(renderlist[1]);
1605                         outelements[j*3+0] = BigLong(renderlist[2]);
1606                 }
1607                 // validate the elements and find the used vertex range
1608                 firstvertex = meshvertices;
1609                 lastvertex = 0;
1610                 for (j = 0;j < surface->num_triangles * 3;j++)
1611                 {
1612                         if ((unsigned int)outelements[j] >= (unsigned int)meshvertices)
1613                                 Host_Error("%s corrupt renderlist (out of bounds index)", loadmodel->name);
1614                         firstvertex = min(firstvertex, outelements[j]);
1615                         lastvertex = max(lastvertex, outelements[j]);
1616                 }
1617                 surface->num_firstvertex = firstvertex;
1618                 surface->num_vertices = lastvertex + 1 - firstvertex;
1619
1620                 // since zym models do not have named sections, reuse their shader
1621                 // name as the section name
1622                 shadername = (char *) (pheader->lump_shaders.start + pbase) + i * 32;
1623                 if (shadername[0])
1624                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, shadername, shadername);
1625                 else
1626                         for (j = 0;j < loadmodel->numskins;j++)
1627                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1628         }
1629         Mod_FreeSkinFiles(skinfiles);
1630         Mem_Free(vertbonecounts);
1631         Mem_Free(verts);
1632
1633         // compute all the mesh information that was not loaded from the file
1634         Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
1635         Mod_BuildBaseBonePoses();
1636         Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, true);
1637         Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
1638         Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
1639
1640         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
1641 }
1642
1643 void Mod_DARKPLACESMODEL_Load(model_t *mod, void *buffer, void *bufferend)
1644 {
1645         dpmheader_t *pheader;
1646         dpmframe_t *frame;
1647         dpmbone_t *bone;
1648         dpmmesh_t *dpmmesh;
1649         unsigned char *pbase;
1650         int i, j, k, meshvertices, meshtriangles;
1651         skinfile_t *skinfiles;
1652         unsigned char *data;
1653         float *bonepose;
1654
1655         pheader = (dpmheader_t *)buffer;
1656         pbase = (unsigned char *)buffer;
1657         if (memcmp(pheader->id, "DARKPLACESMODEL\0", 16))
1658                 Host_Error ("Mod_DARKPLACESMODEL_Load: %s is not a darkplaces model");
1659         if (BigLong(pheader->type) != 2)
1660                 Host_Error ("Mod_DARKPLACESMODEL_Load: only type 2 (hierarchical skeletal pose) models are currently supported (name = %s)", loadmodel->name);
1661
1662         loadmodel->type = mod_alias;
1663         loadmodel->flags = 0; // there are no flags on zym models
1664         loadmodel->synctype = ST_RAND;
1665
1666         // byteswap header
1667         pheader->type = BigLong(pheader->type);
1668         pheader->filesize = BigLong(pheader->filesize);
1669         pheader->mins[0] = BigFloat(pheader->mins[0]);
1670         pheader->mins[1] = BigFloat(pheader->mins[1]);
1671         pheader->mins[2] = BigFloat(pheader->mins[2]);
1672         pheader->maxs[0] = BigFloat(pheader->maxs[0]);
1673         pheader->maxs[1] = BigFloat(pheader->maxs[1]);
1674         pheader->maxs[2] = BigFloat(pheader->maxs[2]);
1675         pheader->yawradius = BigFloat(pheader->yawradius);
1676         pheader->allradius = BigFloat(pheader->allradius);
1677         pheader->num_bones = BigLong(pheader->num_bones);
1678         pheader->num_meshs = BigLong(pheader->num_meshs);
1679         pheader->num_frames = BigLong(pheader->num_frames);
1680         pheader->ofs_bones = BigLong(pheader->ofs_bones);
1681         pheader->ofs_meshs = BigLong(pheader->ofs_meshs);
1682         pheader->ofs_frames = BigLong(pheader->ofs_frames);
1683
1684         if (pheader->num_bones < 1 || pheader->num_meshs < 1)
1685         {
1686                 Con_Printf("%s has no geometry\n");
1687                 return;
1688         }
1689         if (pheader->num_frames < 1)
1690         {
1691                 Con_Printf("%s has no frames\n");
1692                 return;
1693         }
1694
1695         loadmodel->DrawSky = NULL;
1696         loadmodel->Draw = R_Q1BSP_Draw;
1697         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1698         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1699         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1700         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1701
1702         // model bbox
1703         for (i = 0;i < 3;i++)
1704         {
1705                 loadmodel->normalmins[i] = pheader->mins[i];
1706                 loadmodel->normalmaxs[i] = pheader->maxs[i];
1707                 loadmodel->yawmins[i] = i != 2 ? -pheader->yawradius : pheader->mins[i];
1708                 loadmodel->yawmaxs[i] = i != 2 ? pheader->yawradius : pheader->maxs[i];
1709                 loadmodel->rotatedmins[i] = -pheader->allradius;
1710                 loadmodel->rotatedmaxs[i] = pheader->allradius;
1711         }
1712         loadmodel->radius = pheader->allradius;
1713         loadmodel->radius2 = pheader->allradius * pheader->allradius;
1714
1715         // load external .skin files if present
1716         skinfiles = Mod_LoadSkinFiles();
1717         if (loadmodel->numskins < 1)
1718                 loadmodel->numskins = 1;
1719
1720         meshvertices = 0;
1721         meshtriangles = 0;
1722
1723         // gather combined statistics from the meshes
1724         dpmmesh = (dpmmesh_t *) (pbase + pheader->ofs_meshs);
1725         for (i = 0;i < (int)pheader->num_meshs;i++)
1726         {
1727                 int numverts = BigLong(dpmmesh->num_verts);
1728                 meshvertices += numverts;;
1729                 meshtriangles += BigLong(dpmmesh->num_tris);
1730                 dpmmesh++;
1731         }
1732
1733         loadmodel->numframes = pheader->num_frames;
1734         loadmodel->num_bones = pheader->num_bones;
1735         loadmodel->num_poses = loadmodel->num_bones * loadmodel->numframes;
1736         loadmodel->num_textures = loadmodel->nummodelsurfaces = loadmodel->num_surfaces = pheader->num_meshs;
1737         // do most allocations as one merged chunk
1738         data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * (sizeof(float[14]) + sizeof(int[4]) + sizeof(float[4])) + loadmodel->num_poses * sizeof(float[36]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
1739         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
1740         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
1741         loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
1742         loadmodel->surfmesh.num_vertices = meshvertices;
1743         loadmodel->surfmesh.num_triangles = meshtriangles;
1744         loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
1745         loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
1746         loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
1747         loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
1748         loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
1749         loadmodel->surfmesh.data_normal3f = (float *)data;data += meshvertices * sizeof(float[3]);
1750         loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
1751         loadmodel->surfmesh.data_vertexweightindex4i = (int *)data;data += meshvertices * sizeof(int[4]);
1752         loadmodel->surfmesh.data_vertexweightinfluence4f = (float *)data;data += meshvertices * sizeof(float[4]);
1753         loadmodel->data_poses = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
1754         loadmodel->data_basebonepose = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
1755         loadmodel->data_baseboneposeinverse = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
1756         loadmodel->skinscenes = (animscene_t *)data;data += loadmodel->numskins * sizeof(animscene_t);
1757         loadmodel->data_bones = (aliasbone_t *)data;data += loadmodel->num_bones * sizeof(aliasbone_t);
1758         loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
1759
1760         for (i = 0;i < loadmodel->numskins;i++)
1761         {
1762                 loadmodel->skinscenes[i].firstframe = i;
1763                 loadmodel->skinscenes[i].framecount = 1;
1764                 loadmodel->skinscenes[i].loop = true;
1765                 loadmodel->skinscenes[i].framerate = 10;
1766         }
1767
1768         // load the bone info
1769         bone = (dpmbone_t *) (pbase + pheader->ofs_bones);
1770         for (i = 0;i < loadmodel->num_bones;i++)
1771         {
1772                 memcpy(loadmodel->data_bones[i].name, bone[i].name, sizeof(bone[i].name));
1773                 loadmodel->data_bones[i].flags = BigLong(bone[i].flags);
1774                 loadmodel->data_bones[i].parent = BigLong(bone[i].parent);
1775                 if (loadmodel->data_bones[i].parent >= i)
1776                         Host_Error("%s bone[%i].parent >= %i", loadmodel->name, i, i);
1777         }
1778
1779         // load the frames
1780         frame = (dpmframe_t *) (pbase + pheader->ofs_frames);
1781         for (i = 0;i < loadmodel->numframes;i++)
1782         {
1783                 const float *poses;
1784                 memcpy(loadmodel->animscenes[i].name, frame->name, sizeof(frame->name));
1785                 loadmodel->animscenes[i].firstframe = i;
1786                 loadmodel->animscenes[i].framecount = 1;
1787                 loadmodel->animscenes[i].loop = true;
1788                 loadmodel->animscenes[i].framerate = 10;
1789                 // load the bone poses for this frame
1790                 poses = (float *) (pbase + BigLong(frame->ofs_bonepositions));
1791                 for (j = 0;j < loadmodel->num_bones*12;j++)
1792                         loadmodel->data_poses[i * loadmodel->num_bones*12 + j] = BigFloat(poses[j]);
1793                 // stuff not processed here: mins, maxs, yawradius, allradius
1794                 frame++;
1795         }
1796
1797         // load the meshes now
1798         dpmmesh = (dpmmesh_t *) (pbase + pheader->ofs_meshs);
1799         meshvertices = 0;
1800         meshtriangles = 0;
1801         // reconstruct frame 0 matrices to allow reconstruction of the base mesh
1802         // (converting from weight-blending skeletal animation to
1803         //  deformation-based skeletal animation)
1804         bonepose = (float *)Z_Malloc(loadmodel->num_bones * sizeof(float[12]));
1805         for (i = 0;i < loadmodel->num_bones;i++)
1806         {
1807                 const float *m = loadmodel->data_poses + i * 12;
1808                 if (loadmodel->data_bones[i].parent >= 0)
1809                         R_ConcatTransforms(bonepose + 12 * loadmodel->data_bones[i].parent, m, bonepose + 12 * i);
1810                 else
1811                         for (k = 0;k < 12;k++)
1812                                 bonepose[12*i+k] = m[k];
1813         }
1814         for (i = 0;i < loadmodel->num_surfaces;i++, dpmmesh++)
1815         {
1816                 const int *inelements;
1817                 int *outelements;
1818                 const float *intexcoord;
1819                 msurface_t *surface;
1820
1821                 loadmodel->surfacelist[i] = i;
1822                 surface = loadmodel->data_surfaces + i;
1823                 surface->texture = loadmodel->data_textures + i;
1824                 surface->num_firsttriangle = meshtriangles;
1825                 surface->num_triangles = BigLong(dpmmesh->num_tris);
1826                 surface->num_firstvertex = meshvertices;
1827                 surface->num_vertices = BigLong(dpmmesh->num_verts);
1828                 meshvertices += surface->num_vertices;
1829                 meshtriangles += surface->num_triangles;
1830
1831                 inelements = (int *) (pbase + BigLong(dpmmesh->ofs_indices));
1832                 outelements = loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3;
1833                 for (j = 0;j < surface->num_triangles;j++)
1834                 {
1835                         // swap element order to flip triangles, because Quake uses clockwise (rare) and dpm uses counterclockwise (standard)
1836                         outelements[0] = surface->num_firstvertex + BigLong(inelements[2]);
1837                         outelements[1] = surface->num_firstvertex + BigLong(inelements[1]);
1838                         outelements[2] = surface->num_firstvertex + BigLong(inelements[0]);
1839                         inelements += 3;
1840                         outelements += 3;
1841                 }
1842
1843                 intexcoord = (float *) (pbase + BigLong(dpmmesh->ofs_texcoords));
1844                 for (j = 0;j < surface->num_vertices*2;j++)
1845                         loadmodel->surfmesh.data_texcoordtexture2f[j + surface->num_firstvertex * 2] = BigFloat(intexcoord[j]);
1846
1847                 data = (unsigned char *) (pbase + BigLong(dpmmesh->ofs_verts));
1848                 for (j = surface->num_firstvertex;j < surface->num_firstvertex + surface->num_vertices;j++)
1849                 {
1850                         float sum;
1851                         int l;
1852                         int numweights = BigLong(((dpmvertex_t *)data)->numbones);
1853                         data += sizeof(dpmvertex_t);
1854                         for (k = 0;k < numweights;k++)
1855                         {
1856                                 const dpmbonevert_t *vert = (dpmbonevert_t *) data;
1857                                 int boneindex = BigLong(vert->bonenum);
1858                                 const float *m = bonepose + 12 * boneindex;
1859                                 float influence = BigFloat(vert->influence);
1860                                 float relativeorigin[3], relativenormal[3];
1861                                 relativeorigin[0] = BigFloat(vert->origin[0]);
1862                                 relativeorigin[1] = BigFloat(vert->origin[1]);
1863                                 relativeorigin[2] = BigFloat(vert->origin[2]);
1864                                 relativenormal[0] = BigFloat(vert->normal[0]);
1865                                 relativenormal[1] = BigFloat(vert->normal[1]);
1866                                 relativenormal[2] = BigFloat(vert->normal[2]);
1867                                 // blend the vertex bone weights into the base mesh
1868                                 loadmodel->surfmesh.data_vertex3f[j*3+0] += relativeorigin[0] * m[0] + relativeorigin[1] * m[1] + relativeorigin[2] * m[ 2] + influence * m[ 3];
1869                                 loadmodel->surfmesh.data_vertex3f[j*3+1] += relativeorigin[0] * m[4] + relativeorigin[1] * m[5] + relativeorigin[2] * m[ 6] + influence * m[ 7];
1870                                 loadmodel->surfmesh.data_vertex3f[j*3+2] += relativeorigin[0] * m[8] + relativeorigin[1] * m[9] + relativeorigin[2] * m[10] + influence * m[11];
1871                                 loadmodel->surfmesh.data_normal3f[j*3+0] += relativenormal[0] * m[0] + relativenormal[1] * m[1] + relativenormal[2] * m[ 2];
1872                                 loadmodel->surfmesh.data_normal3f[j*3+1] += relativenormal[0] * m[4] + relativenormal[1] * m[5] + relativenormal[2] * m[ 6];
1873                                 loadmodel->surfmesh.data_normal3f[j*3+2] += relativenormal[0] * m[8] + relativenormal[1] * m[9] + relativenormal[2] * m[10];
1874                                 if (!k)
1875                                 {
1876                                         // store the first (and often only) weight
1877                                         loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+0] = influence;
1878                                         loadmodel->surfmesh.data_vertexweightindex4i[j*4+0] = boneindex;
1879                                 }
1880                                 else
1881                                 {
1882                                         // sort the new weight into this vertex's weight table
1883                                         // (which only accepts up to 4 bones per vertex)
1884                                         for (l = 0;l < 4;l++)
1885                                         {
1886                                                 if (loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l] < influence)
1887                                                 {
1888                                                         // move weaker influence weights out of the way first
1889                                                         int l2;
1890                                                         for (l2 = 3;l2 > l;l2--)
1891                                                         {
1892                                                                 loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l2] = loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l2-1];
1893                                                                 loadmodel->surfmesh.data_vertexweightindex4i[j*4+l2] = loadmodel->surfmesh.data_vertexweightindex4i[j*4+l2-1];
1894                                                         }
1895                                                         // store the new weight
1896                                                         loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l] = influence;
1897                                                         loadmodel->surfmesh.data_vertexweightindex4i[j*4+l] = boneindex;
1898                                                         break;
1899                                                 }
1900                                         }
1901                                 }
1902                                 data += sizeof(dpmbonevert_t);
1903                         }
1904                         sum = 0;
1905                         for (l = 0;l < 4;l++)
1906                                 sum += loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l];
1907                         if (sum && fabs(sum - 1) > (1.0f / 256.0f))
1908                         {
1909                                 float f = 1.0f / sum;
1910                                 for (l = 0;l < 4;l++)
1911                                         loadmodel->surfmesh.data_vertexweightinfluence4f[j*4+l] *= f;
1912                         }
1913                 }
1914
1915                 // since dpm models do not have named sections, reuse their shader name as the section name
1916                 if (dpmmesh->shadername[0])
1917                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + i, skinfiles, dpmmesh->shadername, dpmmesh->shadername);
1918                 else
1919                         for (j = 0;j < loadmodel->numskins;j++)
1920                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + i + j * loadmodel->num_surfaces, NULL);
1921
1922                 Mod_ValidateElements(loadmodel->surfmesh.data_element3i + surface->num_firsttriangle * 3, surface->num_triangles, surface->num_firstvertex, surface->num_vertices, __FILE__, __LINE__);
1923         }
1924         Z_Free(bonepose);
1925         Mod_FreeSkinFiles(skinfiles);
1926
1927         // compute all the mesh information that was not loaded from the file
1928         Mod_BuildBaseBonePoses();
1929         Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
1930         Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
1931
1932         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
1933 }
1934
1935 // no idea why PSK/PSA files contain weird quaternions but they do...
1936 #define PSKQUATNEGATIONS
1937 void Mod_PSKMODEL_Load(model_t *mod, void *buffer, void *bufferend)
1938 {
1939         int i, j, index, version, recordsize, numrecords, meshvertices, meshtriangles;
1940         int numpnts, numvtxw, numfaces, nummatts, numbones, numrawweights, numanimbones, numanims, numanimkeys;
1941         fs_offset_t filesize;
1942         pskpnts_t *pnts;
1943         pskvtxw_t *vtxw;
1944         pskface_t *faces;
1945         pskmatt_t *matts;
1946         pskboneinfo_t *bones;
1947         pskrawweights_t *rawweights;
1948         pskboneinfo_t *animbones;
1949         pskaniminfo_t *anims;
1950         pskanimkeys_t *animkeys;
1951         void *animfilebuffer, *animbuffer, *animbufferend;
1952         unsigned char *data;
1953         pskchunk_t *pchunk;
1954         skinfile_t *skinfiles;
1955         char animname[MAX_QPATH];
1956
1957         pchunk = (pskchunk_t *)buffer;
1958         if (strcmp(pchunk->id, "ACTRHEAD"))
1959                 Host_Error ("Mod_PSKMODEL_Load: %s is not an Unreal Engine ActorX (.psk + .psa) model");
1960
1961         loadmodel->type = mod_alias;
1962         loadmodel->DrawSky = NULL;
1963         loadmodel->Draw = R_Q1BSP_Draw;
1964         loadmodel->CompileShadowVolume = R_Q1BSP_CompileShadowVolume;
1965         loadmodel->DrawShadowVolume = R_Q1BSP_DrawShadowVolume;
1966         loadmodel->DrawLight = R_Q1BSP_DrawLight;
1967         loadmodel->TraceBox = Mod_MDLMD2MD3_TraceBox;
1968         loadmodel->flags = 0; // there are no flags on zym models
1969         loadmodel->synctype = ST_RAND;
1970
1971         FS_StripExtension(loadmodel->name, animname, sizeof(animname));
1972         strlcat(animname, ".psa", sizeof(animname));
1973         animbuffer = animfilebuffer = FS_LoadFile(animname, loadmodel->mempool, false, &filesize);
1974         animbufferend = (void *)((unsigned char*)animbuffer + (int)filesize);
1975         if (animbuffer == NULL)
1976                 Host_Error("%s: can't find .psa file (%s)", loadmodel->name, animname);
1977
1978         numpnts = 0;
1979         pnts = NULL;
1980         numvtxw = 0;
1981         vtxw = NULL;
1982         numfaces = 0;
1983         faces = NULL;
1984         nummatts = 0;
1985         matts = NULL;
1986         numbones = 0;
1987         bones = NULL;
1988         numrawweights = 0;
1989         rawweights = NULL;
1990         numanims = 0;
1991         anims = NULL;
1992         numanimkeys = 0;
1993         animkeys = NULL;
1994
1995         while (buffer < bufferend)
1996         {
1997                 pchunk = (pskchunk_t *)buffer;
1998                 buffer = (void *)((unsigned char *)buffer + sizeof(pskchunk_t));
1999                 version = LittleLong(pchunk->version);
2000                 recordsize = LittleLong(pchunk->recordsize);
2001                 numrecords = LittleLong(pchunk->numrecords);
2002                 if (developer.integer >= 100)
2003                         Con_Printf("%s: %s %x: %i * %i = %i\n", loadmodel->name, pchunk->id, version, recordsize, numrecords, recordsize * numrecords);
2004                 if (version != 0x1e83b9 && version != 0x1e9179 && version != 0x2e && version != 0x12f2bc && version != 0x12f2f0)
2005                         Con_Printf ("%s: chunk %s has unknown version %x (0x1e83b9, 0x1e9179, 0x2e, 0x12f2bc, 0x12f2f0 are currently supported), trying to load anyway!\n", loadmodel->name, pchunk->id, version);
2006                 if (!strcmp(pchunk->id, "ACTRHEAD"))
2007                 {
2008                         // nothing to do
2009                 }
2010                 else if (!strcmp(pchunk->id, "PNTS0000"))
2011                 {
2012                         pskpnts_t *p;
2013                         if (recordsize != sizeof(*p))
2014                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
2015                         // byteswap in place and keep the pointer
2016                         numpnts = numrecords;
2017                         pnts = (pskpnts_t *)buffer;
2018                         for (index = 0, p = (pskpnts_t *)buffer;index < numrecords;index++, p++)
2019                         {
2020                                 p->origin[0] = LittleFloat(p->origin[0]);
2021                                 p->origin[1] = LittleFloat(p->origin[1]);
2022                                 p->origin[2] = LittleFloat(p->origin[2]);
2023                         }
2024                         buffer = p;
2025                 }
2026                 else if (!strcmp(pchunk->id, "VTXW0000"))
2027                 {
2028                         pskvtxw_t *p;
2029                         if (recordsize != sizeof(*p))
2030                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
2031                         // byteswap in place and keep the pointer
2032                         numvtxw = numrecords;
2033                         vtxw = (pskvtxw_t *)buffer;
2034                         for (index = 0, p = (pskvtxw_t *)buffer;index < numrecords;index++, p++)
2035                         {
2036                                 p->pntsindex = LittleShort(p->pntsindex);
2037                                 p->texcoord[0] = LittleFloat(p->texcoord[0]);
2038                                 p->texcoord[1] = LittleFloat(p->texcoord[1]);
2039                                 if (p->pntsindex >= numpnts)
2040                                 {
2041                                         Con_Printf("%s: vtxw->pntsindex %i >= numpnts %i\n", loadmodel->name, p->pntsindex, numpnts);
2042                                         p->pntsindex = 0;
2043                                 }
2044                         }
2045                         buffer = p;
2046                 }
2047                 else if (!strcmp(pchunk->id, "FACE0000"))
2048                 {
2049                         pskface_t *p;
2050                         if (recordsize != sizeof(*p))
2051                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
2052                         // byteswap in place and keep the pointer
2053                         numfaces = numrecords;
2054                         faces = (pskface_t *)buffer;
2055                         for (index = 0, p = (pskface_t *)buffer;index < numrecords;index++, p++)
2056                         {
2057                                 p->vtxwindex[0] = LittleShort(p->vtxwindex[0]);
2058                                 p->vtxwindex[1] = LittleShort(p->vtxwindex[1]);
2059                                 p->vtxwindex[2] = LittleShort(p->vtxwindex[2]);
2060                                 p->group = LittleLong(p->group);
2061                                 if (p->vtxwindex[0] >= numvtxw)
2062                                 {
2063                                         Con_Printf("%s: face->vtxwindex[0] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[0], numvtxw);
2064                                         p->vtxwindex[0] = 0;
2065                                 }
2066                                 if (p->vtxwindex[1] >= numvtxw)
2067                                 {
2068                                         Con_Printf("%s: face->vtxwindex[1] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[1], numvtxw);
2069                                         p->vtxwindex[1] = 0;
2070                                 }
2071                                 if (p->vtxwindex[2] >= numvtxw)
2072                                 {
2073                                         Con_Printf("%s: face->vtxwindex[2] %i >= numvtxw %i\n", loadmodel->name, p->vtxwindex[2], numvtxw);
2074                                         p->vtxwindex[2] = 0;
2075                                 }
2076                         }
2077                         buffer = p;
2078                 }
2079                 else if (!strcmp(pchunk->id, "MATT0000"))
2080                 {
2081                         pskmatt_t *p;
2082                         if (recordsize != sizeof(*p))
2083                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
2084                         // byteswap in place and keep the pointer
2085                         nummatts = numrecords;
2086                         matts = (pskmatt_t *)buffer;
2087                         for (index = 0, p = (pskmatt_t *)buffer;index < numrecords;index++, p++)
2088                         {
2089                                 // nothing to do
2090                         }
2091                         buffer = p;
2092                 }
2093                 else if (!strcmp(pchunk->id, "REFSKELT"))
2094                 {
2095                         pskboneinfo_t *p;
2096                         if (recordsize != sizeof(*p))
2097                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
2098                         // byteswap in place and keep the pointer
2099                         numbones = numrecords;
2100                         bones = (pskboneinfo_t *)buffer;
2101                         for (index = 0, p = (pskboneinfo_t *)buffer;index < numrecords;index++, p++)
2102                         {
2103                                 p->numchildren = LittleLong(p->numchildren);
2104                                 p->parent = LittleLong(p->parent);
2105                                 p->basepose.quat[0] = LittleFloat(p->basepose.quat[0]);
2106                                 p->basepose.quat[1] = LittleFloat(p->basepose.quat[1]);
2107                                 p->basepose.quat[2] = LittleFloat(p->basepose.quat[2]);
2108                                 p->basepose.quat[3] = LittleFloat(p->basepose.quat[3]);
2109                                 p->basepose.origin[0] = LittleFloat(p->basepose.origin[0]);
2110                                 p->basepose.origin[1] = LittleFloat(p->basepose.origin[1]);
2111                                 p->basepose.origin[2] = LittleFloat(p->basepose.origin[2]);
2112                                 p->basepose.unknown = LittleFloat(p->basepose.unknown);
2113                                 p->basepose.size[0] = LittleFloat(p->basepose.size[0]);
2114                                 p->basepose.size[1] = LittleFloat(p->basepose.size[1]);
2115                                 p->basepose.size[2] = LittleFloat(p->basepose.size[2]);
2116 #ifdef PSKQUATNEGATIONS
2117                                 if (index)
2118                                 {
2119                                         p->basepose.quat[0] *= -1;
2120                                         p->basepose.quat[1] *= -1;
2121                                         p->basepose.quat[2] *= -1;
2122                                 }
2123                                 else
2124                                 {
2125                                         p->basepose.quat[0] *=  1;
2126                                         p->basepose.quat[1] *= -1;
2127                                         p->basepose.quat[2] *=  1;
2128                                 }
2129 #endif
2130                                 if (p->parent < 0 || p->parent >= numbones)
2131                                 {
2132                                         Con_Printf("%s: bone->parent %i >= numbones %i\n", loadmodel->name, p->parent, numbones);
2133                                         p->parent = 0;
2134                                 }
2135                         }
2136                         buffer = p;
2137                 }
2138                 else if (!strcmp(pchunk->id, "RAWWEIGHTS"))
2139                 {
2140                         pskrawweights_t *p;
2141                         if (recordsize != sizeof(*p))
2142                                 Host_Error("%s: %s has unsupported recordsize", loadmodel->name, pchunk->id);
2143                         // byteswap in place and keep the pointer
2144                         numrawweights = numrecords;
2145                         rawweights = (pskrawweights_t *)buffer;
2146                         for (index = 0, p = (pskrawweights_t *)buffer;index < numrecords;index++, p++)
2147                         {
2148                                 p->weight = LittleFloat(p->weight);
2149                                 p->pntsindex = LittleLong(p->pntsindex);
2150                                 p->boneindex = LittleLong(p->boneindex);
2151                                 if (p->pntsindex < 0 || p->pntsindex >= numpnts)
2152                                 {
2153                                         Con_Printf("%s: weight->pntsindex %i >= numpnts %i\n", loadmodel->name, p->pntsindex, numpnts);
2154                                         p->pntsindex = 0;
2155                                 }
2156                                 if (p->boneindex < 0 || p->boneindex >= numbones)
2157                                 {
2158                                         Con_Printf("%s: weight->boneindex %i >= numbones %i\n", loadmodel->name, p->boneindex, numbones);
2159                                         p->boneindex = 0;
2160                                 }
2161                         }
2162                         buffer = p;
2163                 }
2164         }
2165
2166         while (animbuffer < animbufferend)
2167         {
2168                 pchunk = (pskchunk_t *)animbuffer;
2169                 animbuffer = (void *)((unsigned char *)animbuffer + sizeof(pskchunk_t));
2170                 version = LittleLong(pchunk->version);
2171                 recordsize = LittleLong(pchunk->recordsize);
2172                 numrecords = LittleLong(pchunk->numrecords);
2173                 if (developer.integer >= 100)
2174                         Con_Printf("%s: %s %x: %i * %i = %i\n", animname, pchunk->id, version, recordsize, numrecords, recordsize * numrecords);
2175                 if (version != 0x1e83b9 && version != 0x1e9179 && version != 0x2e && version != 0x12f2bc && version != 0x12f2f0)
2176                         Con_Printf ("%s: chunk %s has unknown version %x (0x1e83b9, 0x1e9179, 0x2e, 0x12f2bc, 0x12f2f0 are currently supported), trying to load anyway!\n", animname, pchunk->id, version);
2177                 if (!strcmp(pchunk->id, "ANIMHEAD"))
2178                 {
2179                         // nothing to do
2180                 }
2181                 else if (!strcmp(pchunk->id, "BONENAMES"))
2182                 {
2183                         pskboneinfo_t *p;
2184                         if (recordsize != sizeof(*p))
2185                                 Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
2186                         // byteswap in place and keep the pointer
2187                         numanimbones = numrecords;
2188                         animbones = (pskboneinfo_t *)animbuffer;
2189                         // NOTE: supposedly psa does not need to match the psk model, the
2190                         // bones missing from the psa would simply use their base
2191                         // positions from the psk, but this is hard for me to implement
2192                         // and people can easily make animations that match.
2193                         if (numanimbones != numbones)
2194                                 Host_Error("%s: this loader only supports animations with the same bones as the mesh");
2195                         for (index = 0, p = (pskboneinfo_t *)animbuffer;index < numrecords;index++, p++)
2196                         {
2197                                 p->numchildren = LittleLong(p->numchildren);
2198                                 p->parent = LittleLong(p->parent);
2199                                 p->basepose.quat[0] = LittleFloat(p->basepose.quat[0]);
2200                                 p->basepose.quat[1] = LittleFloat(p->basepose.quat[1]);
2201                                 p->basepose.quat[2] = LittleFloat(p->basepose.quat[2]);
2202                                 p->basepose.quat[3] = LittleFloat(p->basepose.quat[3]);
2203                                 p->basepose.origin[0] = LittleFloat(p->basepose.origin[0]);
2204                                 p->basepose.origin[1] = LittleFloat(p->basepose.origin[1]);
2205                                 p->basepose.origin[2] = LittleFloat(p->basepose.origin[2]);
2206                                 p->basepose.unknown = LittleFloat(p->basepose.unknown);
2207                                 p->basepose.size[0] = LittleFloat(p->basepose.size[0]);
2208                                 p->basepose.size[1] = LittleFloat(p->basepose.size[1]);
2209                                 p->basepose.size[2] = LittleFloat(p->basepose.size[2]);
2210 #ifdef PSKQUATNEGATIONS
2211                                 if (index)
2212                                 {
2213                                         p->basepose.quat[0] *= -1;
2214                                         p->basepose.quat[1] *= -1;
2215                                         p->basepose.quat[2] *= -1;
2216                                 }
2217                                 else
2218                                 {
2219                                         p->basepose.quat[0] *=  1;
2220                                         p->basepose.quat[1] *= -1;
2221                                         p->basepose.quat[2] *=  1;
2222                                 }
2223 #endif
2224                                 if (p->parent < 0 || p->parent >= numanimbones)
2225                                 {
2226                                         Con_Printf("%s: bone->parent %i >= numanimbones %i\n", animname, p->parent, numanimbones);
2227                                         p->parent = 0;
2228                                 }
2229                                 // check that bones are the same as in the base
2230                                 if (strcmp(p->name, bones[index].name) || p->parent != bones[index].parent)
2231                                         Host_Error("%s: this loader only supports animations with the same bones as the mesh", animname);
2232                         }
2233                         animbuffer = p;
2234                 }
2235                 else if (!strcmp(pchunk->id, "ANIMINFO"))
2236                 {
2237                         pskaniminfo_t *p;
2238                         if (recordsize != sizeof(*p))
2239                                 Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
2240                         // byteswap in place and keep the pointer
2241                         numanims = numrecords;
2242                         anims = (pskaniminfo_t *)animbuffer;
2243                         for (index = 0, p = (pskaniminfo_t *)animbuffer;index < numrecords;index++, p++)
2244                         {
2245                                 p->numbones = LittleLong(p->numbones);
2246                                 p->playtime = LittleFloat(p->playtime);
2247                                 p->fps = LittleFloat(p->fps);
2248                                 p->firstframe = LittleLong(p->firstframe);
2249                                 p->numframes = LittleLong(p->numframes);
2250                                 if (p->numbones != numbones)
2251                                         Con_Printf("%s: animinfo->numbones != numbones, trying to load anyway!\n", animname);
2252                         }
2253                         animbuffer = p;
2254                 }
2255                 else if (!strcmp(pchunk->id, "ANIMKEYS"))
2256                 {
2257                         pskanimkeys_t *p;
2258                         if (recordsize != sizeof(*p))
2259                                 Host_Error("%s: %s has unsupported recordsize", animname, pchunk->id);
2260                         numanimkeys = numrecords;
2261                         animkeys = (pskanimkeys_t *)animbuffer;
2262                         for (index = 0, p = (pskanimkeys_t *)animbuffer;index < numrecords;index++, p++)
2263                         {
2264                                 p->origin[0] = LittleFloat(p->origin[0]);
2265                                 p->origin[1] = LittleFloat(p->origin[1]);
2266                                 p->origin[2] = LittleFloat(p->origin[2]);
2267                                 p->quat[0] = LittleFloat(p->quat[0]);
2268                                 p->quat[1] = LittleFloat(p->quat[1]);
2269                                 p->quat[2] = LittleFloat(p->quat[2]);
2270                                 p->quat[3] = LittleFloat(p->quat[3]);
2271                                 p->frametime = LittleFloat(p->frametime);
2272 #ifdef PSKQUATNEGATIONS
2273                                 if (index % numbones)
2274                                 {
2275                                         p->quat[0] *= -1;
2276                                         p->quat[1] *= -1;
2277                                         p->quat[2] *= -1;
2278                                 }
2279                                 else
2280                                 {
2281                                         p->quat[0] *=  1;
2282                                         p->quat[1] *= -1;
2283                                         p->quat[2] *=  1;
2284                                 }
2285 #endif
2286                         }
2287                         animbuffer = p;
2288                         // TODO: allocate bonepose stuff
2289                 }
2290                 else
2291                         Con_Printf("%s: unknown chunk ID \"%s\"\n", animname, pchunk->id);
2292         }
2293
2294         if (!numpnts || !pnts || !numvtxw || !vtxw || !numfaces || !faces || !nummatts || !matts || !numbones || !bones || !numrawweights || !rawweights || !numanims || !anims || !numanimkeys || !animkeys)
2295                 Host_Error("%s: missing required chunks", loadmodel->name);
2296
2297         loadmodel->numframes = 0;
2298         for (index = 0;index < numanims;index++)
2299                 loadmodel->numframes += anims[index].numframes;
2300
2301         if (numanimkeys != numbones * loadmodel->numframes)
2302                 Host_Error("%s: %s has incorrect number of animation keys", animname, pchunk->id);
2303
2304         meshvertices = numvtxw;
2305         meshtriangles = numfaces;
2306
2307         // load external .skin files if present
2308         skinfiles = Mod_LoadSkinFiles();
2309         if (loadmodel->numskins < 1)
2310                 loadmodel->numskins = 1;
2311         loadmodel->num_bones = numbones;
2312         loadmodel->num_poses = loadmodel->num_bones * loadmodel->numframes;
2313         loadmodel->num_textures = loadmodel->nummodelsurfaces = loadmodel->num_surfaces = nummatts;
2314         // do most allocations as one merged chunk
2315         data = (unsigned char *)Mem_Alloc(loadmodel->mempool, loadmodel->num_surfaces * sizeof(msurface_t) + loadmodel->num_surfaces * sizeof(int) + loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t) + meshtriangles * sizeof(int[3]) + meshtriangles * sizeof(int[3]) + meshvertices * (sizeof(float[14]) + sizeof(int[4]) + sizeof(float[4])) + loadmodel->num_poses * sizeof(float[36]) + loadmodel->numskins * sizeof(animscene_t) + loadmodel->num_bones * sizeof(aliasbone_t) + loadmodel->numframes * sizeof(animscene_t));
2316         loadmodel->data_surfaces = (msurface_t *)data;data += loadmodel->num_surfaces * sizeof(msurface_t);
2317         loadmodel->surfacelist = (int *)data;data += loadmodel->num_surfaces * sizeof(int);
2318         loadmodel->data_textures = (texture_t *)data;data += loadmodel->num_surfaces * loadmodel->numskins * sizeof(texture_t);
2319         loadmodel->surfmesh.num_vertices = meshvertices;
2320         loadmodel->surfmesh.num_triangles = meshtriangles;
2321         loadmodel->surfmesh.data_element3i = (int *)data;data += meshtriangles * sizeof(int[3]);
2322         loadmodel->surfmesh.data_neighbor3i = (int *)data;data += meshtriangles * sizeof(int[3]);
2323         loadmodel->surfmesh.data_vertex3f = (float *)data;data += meshvertices * sizeof(float[3]);
2324         loadmodel->surfmesh.data_svector3f = (float *)data;data += meshvertices * sizeof(float[3]);
2325         loadmodel->surfmesh.data_tvector3f = (float *)data;data += meshvertices * sizeof(float[3]);
2326         loadmodel->surfmesh.data_normal3f = (float *)data;data += meshvertices * sizeof(float[3]);
2327         loadmodel->surfmesh.data_texcoordtexture2f = (float *)data;data += meshvertices * sizeof(float[2]);
2328         loadmodel->surfmesh.data_vertexweightindex4i = (int *)data;data += meshvertices * sizeof(int[4]);
2329         loadmodel->surfmesh.data_vertexweightinfluence4f = (float *)data;data += meshvertices * sizeof(float[4]);
2330         loadmodel->data_poses = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
2331         loadmodel->data_basebonepose = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
2332         loadmodel->data_baseboneposeinverse = (float *)data;data += loadmodel->num_poses * sizeof(float[12]);
2333         loadmodel->skinscenes = (animscene_t *)data;data += loadmodel->numskins * sizeof(animscene_t);
2334         loadmodel->data_bones = (aliasbone_t *)data;data += loadmodel->num_bones * sizeof(aliasbone_t);
2335         loadmodel->animscenes = (animscene_t *)data;data += loadmodel->numframes * sizeof(animscene_t);
2336
2337         for (i = 0;i < loadmodel->numskins;i++)
2338         {
2339                 loadmodel->skinscenes[i].firstframe = i;
2340                 loadmodel->skinscenes[i].framecount = 1;
2341                 loadmodel->skinscenes[i].loop = true;
2342                 loadmodel->skinscenes[i].framerate = 10;
2343         }
2344
2345         // create surfaces
2346         for (index = 0, i = 0;index < nummatts;index++)
2347         {
2348                 // since psk models do not have named sections, reuse their shader name as the section name
2349                 if (matts[index].name[0])
2350                         Mod_BuildAliasSkinsFromSkinFiles(loadmodel->data_textures + index, skinfiles, matts[index].name, matts[index].name);
2351                 else
2352                         for (j = 0;j < loadmodel->numskins;j++)
2353                                 Mod_BuildAliasSkinFromSkinFrame(loadmodel->data_textures + index + j * loadmodel->num_surfaces, NULL);
2354                 loadmodel->surfacelist[index] = index;
2355                 loadmodel->data_surfaces[index].texture = loadmodel->data_textures + index;
2356                 loadmodel->data_surfaces[index].num_firstvertex = 0;
2357                 loadmodel->data_surfaces[index].num_vertices = loadmodel->surfmesh.num_vertices;
2358         }
2359
2360         // copy over the vertex locations and texcoords
2361         for (index = 0;index < numvtxw;index++)
2362         {
2363                 loadmodel->surfmesh.data_vertex3f[index*3+0] = pnts[vtxw[index].pntsindex].origin[0];
2364                 loadmodel->surfmesh.data_vertex3f[index*3+1] = pnts[vtxw[index].pntsindex].origin[1];
2365                 loadmodel->surfmesh.data_vertex3f[index*3+2] = pnts[vtxw[index].pntsindex].origin[2];
2366                 loadmodel->surfmesh.data_texcoordtexture2f[index*2+0] = vtxw[index].texcoord[0];
2367                 loadmodel->surfmesh.data_texcoordtexture2f[index*2+1] = vtxw[index].texcoord[1];
2368         }
2369
2370         // loading the faces is complicated because we need to sort them into surfaces by mattindex
2371         for (index = 0;index < numfaces;index++)
2372                 loadmodel->data_surfaces[faces[index].mattindex].num_triangles++;
2373         for (index = 0, i = 0;index < nummatts;index++)
2374         {
2375                 loadmodel->data_surfaces[index].num_firsttriangle = i;
2376                 i += loadmodel->data_surfaces[index].num_triangles;
2377                 loadmodel->data_surfaces[index].num_triangles = 0;
2378         }
2379         for (index = 0;index < numfaces;index++)
2380         {
2381                 i = (loadmodel->data_surfaces[faces[index].mattindex].num_firsttriangle + loadmodel->data_surfaces[faces[index].mattindex].num_triangles++)*3;
2382                 loadmodel->surfmesh.data_element3i[i+0] = faces[index].vtxwindex[0];
2383                 loadmodel->surfmesh.data_element3i[i+1] = faces[index].vtxwindex[1];
2384                 loadmodel->surfmesh.data_element3i[i+2] = faces[index].vtxwindex[2];
2385         }
2386
2387         // copy over the bones
2388         for (index = 0;index < numbones;index++)
2389         {
2390                 strlcpy(loadmodel->data_bones[index].name, bones[index].name, sizeof(loadmodel->data_bones[index].name));
2391                 loadmodel->data_bones[index].parent = (index || bones[index].parent > 0) ? bones[index].parent : -1;
2392                 if (loadmodel->data_bones[index].parent >= index)
2393                         Host_Error("%s bone[%i].parent >= %i", loadmodel->name, index, index);
2394         }
2395
2396         // sort the psk point weights into the vertex weight tables
2397         // (which only accept up to 4 bones per vertex)
2398         for (index = 0;index < numvtxw;index++)
2399         {
2400                 int l;
2401                 float sum;
2402                 for (j = 0;j < numrawweights;j++)
2403                 {
2404                         if (rawweights[j].pntsindex == vtxw[index].pntsindex)
2405                         {
2406                                 int boneindex = rawweights[j].boneindex;
2407                                 float influence = rawweights[j].weight;
2408                                 for (l = 0;l < 4;l++)
2409                                 {
2410                                         if (loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l] < influence)
2411                                         {
2412                                                 // move lower influence weights out of the way first
2413                                                 int l2;
2414                                                 for (l2 = 3;l2 > l;l2--)
2415                                                 {
2416                                                         loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l2] = loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l2-1];
2417                                                         loadmodel->surfmesh.data_vertexweightindex4i[index*4+l2] = loadmodel->surfmesh.data_vertexweightindex4i[index*4+l2-1];
2418                                                 }
2419                                                 // store the new weight
2420                                                 loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l] = influence;
2421                                                 loadmodel->surfmesh.data_vertexweightindex4i[index*4+l] = boneindex;
2422                                                 break;
2423                                         }
2424                                 }
2425                         }
2426                 }
2427                 sum = 0;
2428                 for (l = 0;l < 4;l++)
2429                         sum += loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l];
2430                 if (sum && fabs(sum - 1) > (1.0f / 256.0f))
2431                 {
2432                         float f = 1.0f / sum;
2433                         for (l = 0;l < 4;l++)
2434                                 loadmodel->surfmesh.data_vertexweightinfluence4f[index*4+l] *= f;
2435                 }
2436         }
2437
2438         // set up the animscenes based on the anims
2439         for (index = 0, i = 0;index < numanims;index++)
2440         {
2441                 for (j = 0;j < anims[index].numframes;j++, i++)
2442                 {
2443                         dpsnprintf(loadmodel->animscenes[i].name, sizeof(loadmodel->animscenes[i].name), "%s_%d", anims[index].name, j);
2444                         loadmodel->animscenes[i].firstframe = i;
2445                         loadmodel->animscenes[i].framecount = 1;
2446                         loadmodel->animscenes[i].loop = true;
2447                         loadmodel->animscenes[i].framerate = 10;
2448                 }
2449         }
2450
2451         // load the poses from the animkeys
2452         for (index = 0;index < numanimkeys;index++)
2453         {
2454                 pskanimkeys_t *k = animkeys + index;
2455                 matrix4x4_t matrix;
2456                 Matrix4x4_FromOriginQuat(&matrix, k->origin[0], k->origin[1], k->origin[2], k->quat[0], k->quat[1], k->quat[2], k->quat[3]);
2457                 Matrix4x4_ToArray12FloatD3D(&matrix, loadmodel->data_poses + index*12);
2458         }
2459         Mod_FreeSkinFiles(skinfiles);
2460         Mem_Free(animfilebuffer);
2461
2462         // compute all the mesh information that was not loaded from the file
2463         // TODO: honor smoothing groups somehow?
2464         Mod_ValidateElements(loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles, 0, loadmodel->surfmesh.num_vertices, __FILE__, __LINE__);
2465         Mod_BuildBaseBonePoses();
2466         Mod_BuildNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_normal3f, true);
2467         Mod_BuildTextureVectorsFromNormals(0, loadmodel->surfmesh.num_vertices, loadmodel->surfmesh.num_triangles, loadmodel->surfmesh.data_vertex3f, loadmodel->surfmesh.data_texcoordtexture2f, loadmodel->surfmesh.data_normal3f, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.data_svector3f, loadmodel->surfmesh.data_tvector3f, true);
2468         Mod_BuildTriangleNeighbors(loadmodel->surfmesh.data_neighbor3i, loadmodel->surfmesh.data_element3i, loadmodel->surfmesh.num_triangles);
2469         Mod_Alias_CalculateBoundingBox();
2470
2471         loadmodel->surfmesh.isanimated = loadmodel->numframes > 1 || loadmodel->animscenes[0].framecount > 1;
2472 }
2473