gl_models.c

   1
   2 #include "quakedef.h"
   3 #include "cl_collision.h"
   4 #include "r_shadow.h"
   5
   6 typedef struct
   7 {
   8         float m[3][4];
   9 } zymbonematrix;
  10
  11 // LordHavoc: vertex arrays
  12 int aliasvertmax = 0;
  13 void *aliasvertarrays = NULL;
  14 float *aliasvertcolor4fbuf = NULL;
  15 float *aliasvertcolor4f = NULL; // this may point at aliasvertcolorbuf or at vertex arrays in the mesh backend
  16 float *aliasvert_svector3f = NULL;
  17 float *aliasvert_tvector3f = NULL;
  18 float *aliasvert_normal3f = NULL;
  19
  20 float *aliasvertcolor2_4f = NULL;
  21 int *aliasvertusage;
  22 zymbonematrix *zymbonepose;
  23
  24 mempool_t *gl_models_mempool;
  25
  26 #define expandaliasvert(newmax) if ((newmax) > aliasvertmax) gl_models_allocarrays(newmax)
  27
  28 void gl_models_allocarrays(int newmax)
  29 {
  30         qbyte *data;
  31         aliasvertmax = newmax;
  32         if (aliasvertarrays != NULL)
  33                 Mem_Free(aliasvertarrays);
  34         aliasvertarrays = Mem_Alloc(gl_models_mempool, aliasvertmax * (sizeof(float[4+4+3+3+3]) + sizeof(int[3])));
  35         data = aliasvertarrays;
  36         aliasvertcolor4f = aliasvertcolor4fbuf = (void *)data;data += aliasvertmax * sizeof(float[4]);
  37         aliasvertcolor2_4f = (void *)data;data += aliasvertmax * sizeof(float[4]); // used temporarily for tinted coloring
  38         aliasvert_svector3f = (void *)data;data += aliasvertmax * sizeof(float[3]);
  39         aliasvert_tvector3f = (void *)data;data += aliasvertmax * sizeof(float[3]);
  40         aliasvert_normal3f = (void *)data;data += aliasvertmax * sizeof(float[3]);
  41         aliasvertusage = (void *)data;data += aliasvertmax * sizeof(int[3]);
  42 }
  43
  44 void gl_models_freearrays(void)
  45 {
  46         aliasvertmax = 0;
  47         if (aliasvertarrays != NULL)
  48                 Mem_Free(aliasvertarrays);
  49         aliasvertarrays = NULL;
  50         aliasvertcolor4f = aliasvertcolor4fbuf = NULL;
  51         aliasvertcolor2_4f = NULL;
  52         aliasvert_svector3f = NULL;
  53         aliasvert_tvector3f = NULL;
  54         aliasvert_normal3f = NULL;
  55         aliasvertusage = NULL;
  56 }
  57
  58 void gl_models_start(void)
  59 {
  60         // allocate vertex processing arrays
  61         gl_models_mempool = Mem_AllocPool("GL_Models");
  62         zymbonepose = Mem_Alloc(gl_models_mempool, sizeof(zymbonematrix[256]));
  63         gl_models_allocarrays(4096);
  64 }
  65
  66 void gl_models_shutdown(void)
  67 {
  68         gl_models_freearrays();
  69         Mem_FreePool(&gl_models_mempool);
  70 }
  71
  72 void gl_models_newmap(void)
  73 {
  74 }
  75
  76 void GL_Models_Init(void)
  77 {
  78         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
  79 }
  80
  81 void R_Model_Alias_GetMesh_Vertex3f(const entity_render_t *ent, aliasmesh_t *mesh, float *vertex3f, float *normal3f, float *svector3f, float *tvector3f)
  82 {
  83         int i, vertcount;
  84         float lerp1, lerp2, lerp3, lerp4;
  85         const aliasvertex_t *verts1, *verts2, *verts3, *verts4;
  86
  87         if (vertex3f == NULL)
  88                 Host_Error("R_Model_Alias_GetMesh_Vertex3f: vertices == NULL.\n");
  89         if (svector3f != NULL && (tvector3f == NULL || normal3f == NULL))
  90                 Host_Error("R_Model_Alias_GetMesh_Vertex3f: svectors requires tvectors and normals.\n");
  91         if (tvector3f != NULL && (svector3f == NULL || normal3f == NULL))
  92                 Host_Error("R_Model_Alias_GetMesh_Vertex3f: tvectors requires svectors and normals.\n");
  93
  94         vertcount = mesh->num_vertices;
  95         verts1 = mesh->data_aliasvertex + ent->frameblend[0].frame * vertcount;
  96         lerp1 = ent->frameblend[0].lerp;
  97         if (ent->frameblend[1].lerp)
  98         {
  99                 verts2 = mesh->data_aliasvertex + ent->frameblend[1].frame * vertcount;
 100                 lerp2 = ent->frameblend[1].lerp;
 101                 if (ent->frameblend[2].lerp)
 102                 {
 103                         verts3 = mesh->data_aliasvertex + ent->frameblend[2].frame * vertcount;
 104                         lerp3 = ent->frameblend[2].lerp;
 105                         if (ent->frameblend[3].lerp)
 106                         {
 107                                 verts4 = mesh->data_aliasvertex + ent->frameblend[3].frame * vertcount;
 108                                 lerp4 = ent->frameblend[3].lerp;
 109                                 // generate vertices
 110                                 if (svector3f != NULL)
 111                                 {
 112                                         for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3, verts1++, verts2++, verts3++, verts4++)
 113                                         {
 114                                                 VectorMAMAMAM(lerp1, verts1->origin, lerp2, verts2->origin, lerp3, verts3->origin, lerp4, verts4->origin, vertex3f);
 115                                                 VectorMAMAMAM(lerp1, verts1->normal, lerp2, verts2->normal, lerp3, verts3->normal, lerp4, verts4->normal, normal3f);
 116                                                 VectorMAMAMAM(lerp1, verts1->svector, lerp2, verts2->svector, lerp3, verts3->svector, lerp4, verts4->svector, svector3f);
 117                                                 CrossProduct(svector3f, normal3f, tvector3f);
 118                                         }
 119                                 }
 120                                 else if (normal3f != NULL)
 121                                 {
 122                                         for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, verts1++, verts2++, verts3++, verts4++)
 123                                         {
 124                                                 VectorMAMAMAM(lerp1, verts1->origin, lerp2, verts2->origin, lerp3, verts3->origin, lerp4, verts4->origin, vertex3f);
 125                                                 VectorMAMAMAM(lerp1, verts1->normal, lerp2, verts2->normal, lerp3, verts3->normal, lerp4, verts4->normal, normal3f);
 126                                         }
 127                                 }
 128                                 else
 129                                         for (i = 0;i < vertcount;i++, vertex3f += 3, verts1++, verts2++, verts3++, verts4++)
 130                                                 VectorMAMAMAM(lerp1, verts1->origin, lerp2, verts2->origin, lerp3, verts3->origin, lerp4, verts4->origin, vertex3f);
 131                         }
 132                         else
 133                         {
 134                                 // generate vertices
 135                                 if (svector3f != NULL)
 136                                 {
 137                                         for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3, verts1++, verts2++, verts3++)
 138                                         {
 139                                                 VectorMAMAM(lerp1, verts1->origin, lerp2, verts2->origin, lerp3, verts3->origin, vertex3f);
 140                                                 VectorMAMAM(lerp1, verts1->normal, lerp2, verts2->normal, lerp3, verts3->normal, normal3f);
 141                                                 VectorMAMAM(lerp1, verts1->svector, lerp2, verts2->svector, lerp3, verts3->svector, svector3f);
 142                                                 CrossProduct(svector3f, normal3f, tvector3f);
 143                                         }
 144                                 }
 145                                 else if (normal3f != NULL)
 146                                 {
 147                                         for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, verts1++, verts2++, verts3++)
 148                                         {
 149                                                 VectorMAMAM(lerp1, verts1->origin, lerp2, verts2->origin, lerp3, verts3->origin, vertex3f);
 150                                                 VectorMAMAM(lerp1, verts1->normal, lerp2, verts2->normal, lerp3, verts3->normal, normal3f);
 151                                         }
 152                                 }
 153                                 else
 154                                         for (i = 0;i < vertcount;i++, vertex3f += 3, verts1++, verts2++, verts3++)
 155                                                 VectorMAMAM(lerp1, verts1->origin, lerp2, verts2->origin, lerp3, verts3->origin, vertex3f);
 156                         }
 157                 }
 158                 else
 159                 {
 160                         // generate vertices
 161                         if (svector3f != NULL)
 162                         {
 163                                 for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3, verts1++, verts2++)
 164                                 {
 165                                         VectorMAM(lerp1, verts1->origin, lerp2, verts2->origin, vertex3f);
 166                                         VectorMAM(lerp1, verts1->normal, lerp2, verts2->normal, normal3f);
 167                                         VectorMAM(lerp1, verts1->svector, lerp2, verts2->svector, svector3f);
 168                                         CrossProduct(svector3f, normal3f, tvector3f);
 169                                 }
 170                         }
 171                         else if (normal3f != NULL)
 172                         {
 173                                 for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, verts1++, verts2++)
 174                                 {
 175                                         VectorMAM(lerp1, verts1->origin, lerp2, verts2->origin, vertex3f);
 176                                         VectorMAM(lerp1, verts1->normal, lerp2, verts2->normal, normal3f);
 177                                 }
 178                         }
 179                         else
 180                                 for (i = 0;i < vertcount;i++, vertex3f += 3, verts1++, verts2++)
 181                                         VectorMAM(lerp1, verts1->origin, lerp2, verts2->origin, vertex3f);
 182                 }
 183         }
 184         else
 185         {
 186                 // generate vertices
 187                 if (svector3f != NULL)
 188                 {
 189                         for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, svector3f += 3, tvector3f += 3, verts1++)
 190                         {
 191                                 VectorCopy(verts1->origin, vertex3f);
 192                                 VectorCopy(verts1->normal, normal3f);
 193                                 VectorCopy(verts1->svector, svector3f);
 194                                 CrossProduct(svector3f, normal3f, tvector3f);
 195                         }
 196                 }
 197                 else if (normal3f != NULL)
 198                 {
 199                         for (i = 0;i < vertcount;i++, vertex3f += 3, normal3f += 3, verts1++)
 200                         {
 201                                 VectorCopy(verts1->origin, vertex3f);
 202                                 VectorCopy(verts1->normal, normal3f);
 203                         }
 204                 }
 205                 else
 206                         for (i = 0;i < vertcount;i++, vertex3f += 3, verts1++)
 207                                 VectorCopy(verts1->origin, vertex3f);
 208         }
 209 }
 210
 211 aliaslayer_t r_aliasnoskinlayers[2] = {{ALIASLAYER_DIFFUSE, NULL, NULL}, {ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS, NULL, NULL}};
 212 aliasskin_t r_aliasnoskin = {0, 2, r_aliasnoskinlayers};
 213 aliasskin_t *R_FetchAliasSkin(const entity_render_t *ent, const aliasmesh_t *mesh)
 214 {
 215         model_t *model = ent->model;
 216         if (model->numskins)
 217         {
 218                 int s = ent->skinnum;
 219                 if ((unsigned int)s >= (unsigned int)model->numskins)
 220                         s = 0;
 221                 if (model->skinscenes[s].framecount > 1)
 222                         s = model->skinscenes[s].firstframe + (int) (cl.time * model->skinscenes[s].framerate) % model->skinscenes[s].framecount;
 223                 else
 224                         s = model->skinscenes[s].firstframe;
 225                 if (s >= mesh->num_skins)
 226                         s = 0;
 227                 return mesh->data_skins + s;
 228         }
 229         else
 230         {
 231                 r_aliasnoskinlayers[0].texture = r_notexture;
 232                 return &r_aliasnoskin;
 233         }
 234 }
 235
 236 void R_DrawAliasModelCallback (const void *calldata1, int calldata2)
 237 {
 238         int c, fullbright, layernum, firstpass;
 239         float tint[3], fog, ifog, colorscale;
 240         vec3_t diff;
 241         qbyte *bcolor;
 242         rmeshstate_t m;
 243         const entity_render_t *ent = calldata1;
 244         aliasmesh_t *mesh = ent->model->aliasdata_meshes + calldata2;
 245         aliaslayer_t *layer;
 246         aliasskin_t *skin;
 247
 248         R_Mesh_Matrix(&ent->matrix);
 249
 250         fog = 0;
 251         if (fogenabled)
 252         {
 253                 VectorSubtract(ent->origin, r_origin, diff);
 254                 fog = DotProduct(diff,diff);
 255                 if (fog < 0.01f)
 256                         fog = 0.01f;
 257                 fog = exp(fogdensity/fog);
 258                 if (fog > 1)
 259                         fog = 1;
 260                 if (fog < 0.01f)
 261                         fog = 0;
 262                 // fog method: darken, additive fog
 263                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 264                 // 2. render fog as additive
 265         }
 266         ifog = 1 - fog;
 267
 268         firstpass = true;
 269         memset(&m, 0, sizeof(m));
 270         skin = R_FetchAliasSkin(ent, mesh);
 271         for (layernum = 0, layer = skin->data_layers;layernum < skin->num_layers;layernum++, layer++)
 272         {
 273                 if (!(layer->flags & ALIASLAYER_FORCEDRAW_IF_FIRSTPASS) || !firstpass)
 274                 {
 275                         if (((layer->flags & ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED) && ent->colormap < 0)
 276                          || ((layer->flags & ALIASLAYER_NODRAW_IF_COLORMAPPED) && ent->colormap >= 0)
 277                          || ((layer->flags & ALIASLAYER_FOG) && !fogenabled)
 278                          ||  (layer->flags & ALIASLAYER_SPECULAR)
 279                          || ((layer->flags & ALIASLAYER_DIFFUSE) && (r_shadow_realtime_world.integer && r_ambient.integer <= 0 && r_fullbright.integer == 0 && !(ent->effects & EF_FULLBRIGHT))))
 280                                 continue;
 281                 }
 282                 if (!firstpass || (ent->effects & EF_ADDITIVE))
 283                 {
 284                         m.blendfunc1 = GL_SRC_ALPHA;
 285                         m.blendfunc2 = GL_ONE;
 286                 }
 287                 else if ((skin->flags & ALIASSKIN_TRANSPARENT) || ent->alpha != 1.0)
 288                 {
 289                         m.blendfunc1 = GL_SRC_ALPHA;
 290                         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 291                 }
 292                 else
 293                 {
 294                         m.blendfunc1 = GL_ONE;
 295                         m.blendfunc2 = GL_ZERO;
 296                 }
 297                 firstpass = false;
 298                 expandaliasvert(mesh->num_vertices);
 299                 colorscale = r_colorscale;
 300                 m.texrgbscale[0] = 1;
 301                 m.tex[0] = R_GetTexture(layer->texture);
 302                 if (gl_combine.integer && layer->flags & (ALIASLAYER_DIFFUSE | ALIASLAYER_SPECULAR))
 303                 {
 304                         colorscale *= 0.25f;
 305                         m.texrgbscale[0] = 4;
 306                 }
 307                 R_Mesh_State(&m);
 308                 c_alias_polys += mesh->num_triangles;
 309                 R_Mesh_GetSpace(mesh->num_vertices);
 310                 if (layer->texture != NULL)
 311                         R_Mesh_CopyTexCoord2f(0, mesh->data_texcoord2f, mesh->num_vertices);
 312                 if (layer->flags & ALIASLAYER_FOG)
 313                 {
 314                         colorscale *= fog;
 315                         R_Model_Alias_GetMesh_Vertex3f(ent, mesh, varray_vertex3f, NULL, NULL, NULL);
 316                         GL_Color(fogcolor[0] * colorscale, fogcolor[1] * colorscale, fogcolor[2] * colorscale, ent->alpha);
 317                 }
 318                 else
 319                 {
 320                         if (layer->flags & (ALIASLAYER_COLORMAP_PANTS | ALIASLAYER_COLORMAP_SHIRT))
 321                         {
 322                                 // 128-224 are backwards ranges
 323                                 if (layer->flags & ALIASLAYER_COLORMAP_PANTS)
 324                                         c = (ent->colormap & 0xF) << 4;
 325                                 else //if (layer->flags & ALIASLAYER_COLORMAP_SHIRT)
 326                                         c = (ent->colormap & 0xF0);
 327                                 c += (c >= 128 && c < 224) ? 4 : 12;
 328                                 bcolor = (qbyte *) (&palette_complete[c]);
 329                                 fullbright = c >= 224;
 330                                 VectorScale(bcolor, (1.0f / 255.0f), tint);
 331                         }
 332                         else
 333                         {
 334                                 tint[0] = tint[1] = tint[2] = 1;
 335                                 fullbright = false;
 336                         }
 337                         colorscale *= ifog;
 338                         if (fullbright || !(layer->flags & ALIASLAYER_DIFFUSE) || r_fullbright.integer || (ent->effects & EF_FULLBRIGHT))
 339                         {
 340                                 R_Model_Alias_GetMesh_Vertex3f(ent, mesh, varray_vertex3f, NULL, NULL, NULL);
 341                                 GL_Color(tint[0] * colorscale, tint[1] * colorscale, tint[2] * colorscale, ent->alpha);
 342                         }
 343                         else if (r_shadow_realtime_world.integer)
 344                         {
 345                                 R_Model_Alias_GetMesh_Vertex3f(ent, mesh, varray_vertex3f, NULL, NULL, NULL);
 346                                 colorscale *= r_ambient.value * (2.0f / 128.0f);
 347                                 GL_Color(tint[0] * colorscale, tint[1] * colorscale, tint[2] * colorscale, ent->alpha);
 348                         }
 349                         else
 350                         {
 351                                 R_Model_Alias_GetMesh_Vertex3f(ent, mesh, varray_vertex3f, aliasvert_normal3f, NULL, NULL);
 352                                 R_LightModel(ent, mesh->num_vertices, varray_vertex3f, aliasvert_normal3f, varray_color4f, tint[0] * colorscale, tint[1] * colorscale, tint[2] * colorscale, false);
 353                         }
 354                 }
 355                 R_Mesh_Draw(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
 356         }
 357 }
 358
 359 void R_Model_Alias_Draw(entity_render_t *ent)
 360 {
 361         int meshnum;
 362         aliasmesh_t *mesh;
 363         if (ent->alpha < (1.0f / 64.0f))
 364                 return; // basically completely transparent
 365
 366         c_models++;
 367
 368         for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++, mesh++)
 369         {
 370                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_FetchAliasSkin(ent, mesh)->flags & ALIASSKIN_TRANSPARENT)
 371                         R_MeshQueue_AddTransparent(ent->origin, R_DrawAliasModelCallback, ent, meshnum);
 372                 else
 373                         R_DrawAliasModelCallback(ent, meshnum);
 374         }
 375 }
 376
 377 void R_Model_Alias_DrawFakeShadow (entity_render_t *ent)
 378 {
 379         int i, meshnum;
 380         aliasmesh_t *mesh;
 381         aliasskin_t *skin;
 382         rmeshstate_t m;
 383         float *v, planenormal[3], planedist, dist, projection[3], floororigin[3], surfnormal[3], lightdirection[3], v2[3];
 384
 385         if ((ent->effects & EF_ADDITIVE) || ent->alpha < 1)
 386                 return;
 387
 388         lightdirection[0] = 0.5;
 389         lightdirection[1] = 0.2;
 390         lightdirection[2] = -1;
 391         VectorNormalizeFast(lightdirection);
 392
 393         VectorMA(ent->origin, 65536.0f, lightdirection, v2);
 394         if (CL_TraceLine(ent->origin, v2, floororigin, surfnormal, 0, false, NULL) == 1)
 395                 return;
 396
 397         R_Mesh_Matrix(&ent->matrix);
 398
 399         memset(&m, 0, sizeof(m));
 400         m.blendfunc1 = GL_SRC_ALPHA;
 401         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 402         R_Mesh_State(&m);
 403         GL_Color(0, 0, 0, 0.5);
 404
 405         // put a light direction in the entity's coordinate space
 406         Matrix4x4_Transform3x3(&ent->inversematrix, lightdirection, projection);
 407         VectorNormalizeFast(projection);
 408
 409         // put the plane's normal in the entity's coordinate space
 410         Matrix4x4_Transform3x3(&ent->inversematrix, surfnormal, planenormal);
 411         VectorNormalizeFast(planenormal);
 412
 413         // put the plane's distance in the entity's coordinate space
 414         VectorSubtract(floororigin, ent->origin, floororigin);
 415         planedist = DotProduct(floororigin, surfnormal) + 2;
 416
 417         dist = -1.0f / DotProduct(projection, planenormal);
 418         VectorScale(projection, dist, projection);
 419         for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++)
 420         {
 421                 skin = R_FetchAliasSkin(ent, mesh);
 422                 if (skin->flags & ALIASSKIN_TRANSPARENT)
 423                         continue;
 424                 R_Mesh_GetSpace(mesh->num_vertices);
 425                 R_Model_Alias_GetMesh_Vertex3f(ent, mesh, varray_vertex3f, NULL, NULL, NULL);
 426                 for (i = 0, v = varray_vertex3f;i < mesh->num_vertices;i++, v += 3)
 427                 {
 428                         dist = DotProduct(v, planenormal) - planedist;
 429                         if (dist > 0)
 430                                 VectorMA(v, dist, projection, v);
 431                 }
 432                 c_alias_polys += mesh->num_triangles;
 433                 R_Mesh_Draw(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
 434         }
 435 }
 436
 437 void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius)
 438 {
 439         int meshnum;
 440         aliasmesh_t *mesh;
 441         aliasskin_t *skin;
 442         float projectdistance;
 443         if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
 444                 return;
 445         projectdistance = lightradius + ent->model->radius - sqrt(DotProduct(relativelightorigin, relativelightorigin));
 446         if (projectdistance > 0.1)
 447         {
 448                 R_Mesh_Matrix(&ent->matrix);
 449                 for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++, mesh++)
 450                 {
 451                         skin = R_FetchAliasSkin(ent, mesh);
 452                         if (skin->flags & ALIASSKIN_TRANSPARENT)
 453                                 continue;
 454                         R_Mesh_GetSpace(mesh->num_vertices * 2);
 455                         R_Model_Alias_GetMesh_Vertex3f(ent, mesh, varray_vertex3f, NULL, NULL, NULL);
 456                         R_Shadow_Volume(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, mesh->data_neighbor3i, relativelightorigin, lightradius, projectdistance);
 457                 }
 458         }
 459 }
 460
 461 void R_Model_Alias_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, vec3_t relativeeyeorigin, float lightradius, float *lightcolor, const matrix4x4_t *matrix_modeltofilter, const matrix4x4_t *matrix_modeltoattenuationxyz, const matrix4x4_t *matrix_modeltoattenuationz)
 462 {
 463         int c, meshnum, layernum;
 464         float fog, ifog, lightcolor2[3], *vertices;
 465         vec3_t diff;
 466         qbyte *bcolor;
 467         aliasmesh_t *mesh;
 468         aliaslayer_t *layer;
 469         aliasskin_t *skin;
 470
 471         if (ent->effects & (EF_ADDITIVE | EF_FULLBRIGHT) || ent->alpha < 1)
 472                 return;
 473
 474         R_Mesh_Matrix(&ent->matrix);
 475
 476         fog = 0;
 477         if (fogenabled)
 478         {
 479                 VectorSubtract(ent->origin, r_origin, diff);
 480                 fog = DotProduct(diff,diff);
 481                 if (fog < 0.01f)
 482                         fog = 0.01f;
 483                 fog = exp(fogdensity/fog);
 484                 if (fog > 1)
 485                         fog = 1;
 486                 if (fog < 0.01f)
 487                         fog = 0;
 488                 // fog method: darken, additive fog
 489                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 490                 // 2. render fog as additive
 491         }
 492         ifog = 1 - fog;
 493
 494         for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++, mesh++)
 495         {
 496                 skin = R_FetchAliasSkin(ent, mesh);
 497                 if (skin->flags & ALIASSKIN_TRANSPARENT)
 498                         continue;
 499                 expandaliasvert(mesh->num_vertices);
 500                 vertices = R_Shadow_VertexBuffer(mesh->num_vertices);
 501                 R_Model_Alias_GetMesh_Vertex3f(ent, mesh, vertices, aliasvert_normal3f, aliasvert_svector3f, aliasvert_tvector3f);
 502                 for (layernum = 0, layer = skin->data_layers;layernum < skin->num_layers;layernum++, layer++)
 503                 {
 504                         if (!(layer->flags & (ALIASLAYER_DIFFUSE | ALIASLAYER_SPECULAR))
 505                          || ((layer->flags & ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED) && ent->colormap < 0)
 506                          || ((layer->flags & ALIASLAYER_NODRAW_IF_COLORMAPPED) && ent->colormap >= 0))
 507                                 continue;
 508                         lightcolor2[0] = lightcolor[0] * ifog;
 509                         lightcolor2[1] = lightcolor[1] * ifog;
 510                         lightcolor2[2] = lightcolor[2] * ifog;
 511                         if (layer->flags & ALIASLAYER_SPECULAR)
 512                         {
 513                                 c_alias_polys += mesh->num_triangles;
 514                                 R_Shadow_SpecularLighting(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, vertices, aliasvert_svector3f, aliasvert_tvector3f, aliasvert_normal3f, mesh->data_texcoord2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor2, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, layer->texture, layer->nmap, NULL);
 515                         }
 516                         else if (layer->flags & ALIASLAYER_DIFFUSE)
 517                         {
 518                                 if (layer->flags & ALIASLAYER_COLORMAP_PANTS)
 519                                 {
 520                                         // 128-224 are backwards ranges
 521                                         c = (ent->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12;
 522                                         // fullbright passes were already taken care of, so skip them in realtime lighting passes
 523                                         if (c >= 224)
 524                                                 continue;
 525                                         bcolor = (qbyte *) (&palette_complete[c]);
 526                                         lightcolor2[0] *= bcolor[0] * (1.0f / 255.0f);
 527                                         lightcolor2[1] *= bcolor[1] * (1.0f / 255.0f);
 528                                         lightcolor2[2] *= bcolor[2] * (1.0f / 255.0f);
 529                                 }
 530                                 else if (layer->flags & ALIASLAYER_COLORMAP_SHIRT)
 531                                 {
 532                                         // 128-224 are backwards ranges
 533                                         c = (ent->colormap & 0xF0);c += (c >= 128 && c < 224) ? 4 : 12;
 534                                         // fullbright passes were already taken care of, so skip them in realtime lighting passes
 535                                         if (c >= 224)
 536                                                 continue;
 537                                         bcolor = (qbyte *) (&palette_complete[c]);
 538                                         lightcolor2[0] *= bcolor[0] * (1.0f / 255.0f);
 539                                         lightcolor2[1] *= bcolor[1] * (1.0f / 255.0f);
 540                                         lightcolor2[2] *= bcolor[2] * (1.0f / 255.0f);
 541                                 }
 542                                 c_alias_polys += mesh->num_triangles;
 543                                 R_Shadow_DiffuseLighting(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, vertices, aliasvert_svector3f, aliasvert_tvector3f, aliasvert_normal3f, mesh->data_texcoord2f, relativelightorigin, lightradius, lightcolor2, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, layer->texture, layer->nmap, NULL);
 544                         }
 545                 }
 546         }
 547 }
 548
 549 int ZymoticLerpBones(int count, const zymbonematrix *bonebase, const frameblend_t *blend, const zymbone_t *bone)
 550 {
 551         int i;
 552         float lerp1, lerp2, lerp3, lerp4;
 553         zymbonematrix *out, rootmatrix, m;
 554         const zymbonematrix *bone1, *bone2, *bone3, *bone4;
 555
 556         rootmatrix.m[0][0] = 1;
 557         rootmatrix.m[0][1] = 0;
 558         rootmatrix.m[0][2] = 0;
 559         rootmatrix.m[0][3] = 0;
 560         rootmatrix.m[1][0] = 0;
 561         rootmatrix.m[1][1] = 1;
 562         rootmatrix.m[1][2] = 0;
 563         rootmatrix.m[1][3] = 0;
 564         rootmatrix.m[2][0] = 0;
 565         rootmatrix.m[2][1] = 0;
 566         rootmatrix.m[2][2] = 1;
 567         rootmatrix.m[2][3] = 0;
 568
 569         bone1 = bonebase + blend[0].frame * count;
 570         lerp1 = blend[0].lerp;
 571         if (blend[1].lerp)
 572         {
 573                 bone2 = bonebase + blend[1].frame * count;
 574                 lerp2 = blend[1].lerp;
 575                 if (blend[2].lerp)
 576                 {
 577                         bone3 = bonebase + blend[2].frame * count;
 578                         lerp3 = blend[2].lerp;
 579                         if (blend[3].lerp)
 580                         {
 581                                 // 4 poses
 582                                 bone4 = bonebase + blend[3].frame * count;
 583                                 lerp4 = blend[3].lerp;
 584                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 585                                 {
 586                                         // interpolate matrices
 587                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 588                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 589                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 590                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 591                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 592                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 593                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 594                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 595                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 596                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 597                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 598                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 599                                         if (bone->parent >= 0)
 600                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 601                                         else
 602                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 603                                         bone1++;
 604                                         bone2++;
 605                                         bone3++;
 606                                         bone4++;
 607                                         bone++;
 608                                 }
 609                         }
 610                         else
 611                         {
 612                                 // 3 poses
 613                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 614                                 {
 615                                         // interpolate matrices
 616                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 617                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 618                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 619                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 620                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 621                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 622                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 623                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 624                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 625                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 626                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 627                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 628                                         if (bone->parent >= 0)
 629                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 630                                         else
 631                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 632                                         bone1++;
 633                                         bone2++;
 634                                         bone3++;
 635                                         bone++;
 636                                 }
 637                         }
 638                 }
 639                 else
 640                 {
 641                         // 2 poses
 642                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 643                         {
 644                                 // interpolate matrices
 645                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 646                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 647                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 648                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 649                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 650                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 651                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 652                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 653                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 654                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 655                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 656                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 657                                 if (bone->parent >= 0)
 658                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 659                                 else
 660                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 661                                 bone1++;
 662                                 bone2++;
 663                                 bone++;
 664                         }
 665                 }
 666         }
 667         else
 668         {
 669                 // 1 pose
 670                 if (lerp1 != 1)
 671                 {
 672                         // lerp != 1.0
 673                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 674                         {
 675                                 // interpolate matrices
 676                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 677                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 678                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 679                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 680                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 681                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 682                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 683                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 684                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 685                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 686                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 687                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 688                                 if (bone->parent >= 0)
 689                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 690                                 else
 691                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 692                                 bone1++;
 693                                 bone++;
 694                         }
 695                 }
 696                 else
 697                 {
 698                         // lerp == 1.0
 699                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 700                         {
 701                                 if (bone->parent >= 0)
 702                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &bone1->m[0][0], &out->m[0][0]);
 703                                 else
 704                                         R_ConcatTransforms(&rootmatrix.m[0][0], &bone1->m[0][0], &out->m[0][0]);
 705                                 bone1++;
 706                                 bone++;
 707                         }
 708                 }
 709         }
 710         return true;
 711 }
 712
 713 void ZymoticTransformVerts(int vertcount, float *vertex, int *bonecounts, zymvertex_t *vert)
 714 {
 715         int c;
 716         float *out = vertex;
 717         zymbonematrix *matrix;
 718         while(vertcount--)
 719         {
 720                 c = *bonecounts++;
 721                 // FIXME: validate bonecounts at load time (must be >= 1)
 722                 // FIXME: need 4th component in origin, for how much of the translate to blend in
 723                 if (c == 1)
 724                 {
 725                         matrix = &zymbonepose[vert->bonenum];
 726                         out[0] = vert->origin[0] * matrix->m[0][0] + vert->origin[1] * matrix->m[0][1] + vert->origin[2] * matrix->m[0][2] + matrix->m[0][3];
 727                         out[1] = vert->origin[0] * matrix->m[1][0] + vert->origin[1] * matrix->m[1][1] + vert->origin[2] * matrix->m[1][2] + matrix->m[1][3];
 728                         out[2] = vert->origin[0] * matrix->m[2][0] + vert->origin[1] * matrix->m[2][1] + vert->origin[2] * matrix->m[2][2] + matrix->m[2][3];
 729                         vert++;
 730                 }
 731                 else
 732                 {
 733                         VectorClear(out);
 734                         while(c--)
 735                         {
 736                                 matrix = &zymbonepose[vert->bonenum];
 737                                 out[0] += vert->origin[0] * matrix->m[0][0] + vert->origin[1] * matrix->m[0][1] + vert->origin[2] * matrix->m[0][2] + matrix->m[0][3];
 738                                 out[1] += vert->origin[0] * matrix->m[1][0] + vert->origin[1] * matrix->m[1][1] + vert->origin[2] * matrix->m[1][2] + matrix->m[1][3];
 739                                 out[2] += vert->origin[0] * matrix->m[2][0] + vert->origin[1] * matrix->m[2][1] + vert->origin[2] * matrix->m[2][2] + matrix->m[2][3];
 740                                 vert++;
 741                         }
 742                 }
 743                 out += 3;
 744         }
 745 }
 746
 747 void ZymoticCalcNormal3f(int vertcount, float *vertex3f, float *normal3f, int shadercount, int *renderlist)
 748 {
 749         int a, b, c, d;
 750         float *out, v1[3], v2[3], normal[3], s;
 751         int *u;
 752         // clear normals
 753         memset(normal3f, 0, sizeof(float) * vertcount * 3);
 754         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 755         // parse render list and accumulate surface normals
 756         while(shadercount--)
 757         {
 758                 d = *renderlist++;
 759                 while (d--)
 760                 {
 761                         a = renderlist[0]*4;
 762                         b = renderlist[1]*4;
 763                         c = renderlist[2]*4;
 764                         v1[0] = vertex3f[a+0] - vertex3f[b+0];
 765                         v1[1] = vertex3f[a+1] - vertex3f[b+1];
 766                         v1[2] = vertex3f[a+2] - vertex3f[b+2];
 767                         v2[0] = vertex3f[c+0] - vertex3f[b+0];
 768                         v2[1] = vertex3f[c+1] - vertex3f[b+1];
 769                         v2[2] = vertex3f[c+2] - vertex3f[b+2];
 770                         CrossProduct(v1, v2, normal);
 771                         VectorNormalizeFast(normal);
 772                         // add surface normal to vertices
 773                         a = renderlist[0] * 3;
 774                         normal3f[a+0] += normal[0];
 775                         normal3f[a+1] += normal[1];
 776                         normal3f[a+2] += normal[2];
 777                         aliasvertusage[renderlist[0]]++;
 778                         a = renderlist[1] * 3;
 779                         normal3f[a+0] += normal[0];
 780                         normal3f[a+1] += normal[1];
 781                         normal3f[a+2] += normal[2];
 782                         aliasvertusage[renderlist[1]]++;
 783                         a = renderlist[2] * 3;
 784                         normal3f[a+0] += normal[0];
 785                         normal3f[a+1] += normal[1];
 786                         normal3f[a+2] += normal[2];
 787                         aliasvertusage[renderlist[2]]++;
 788                         renderlist += 3;
 789                 }
 790         }
 791         // FIXME: precalc this
 792         // average surface normals
 793         out = normal3f;
 794         u = aliasvertusage;
 795         while(vertcount--)
 796         {
 797                 if (*u > 1)
 798                 {
 799                         s = ixtable[*u];
 800                         out[0] *= s;
 801                         out[1] *= s;
 802                         out[2] *= s;
 803                 }
 804                 u++;
 805                 out += 3;
 806         }
 807 }
 808
 809 void R_DrawZymoticModelMeshCallback (const void *calldata1, int calldata2)
 810 {
 811         float fog, ifog, colorscale;
 812         vec3_t diff;
 813         int i, *renderlist, *elements;
 814         rtexture_t *texture;
 815         rmeshstate_t mstate;
 816         const entity_render_t *ent = calldata1;
 817         int shadernum = calldata2;
 818         int numverts, numtriangles;
 819
 820         R_Mesh_Matrix(&ent->matrix);
 821
 822         // find the vertex index list and texture
 823         renderlist = ent->model->zymdata_renderlist;
 824         for (i = 0;i < shadernum;i++)
 825                 renderlist += renderlist[0] * 3 + 1;
 826         texture = ent->model->zymdata_textures[shadernum];
 827
 828         numverts = ent->model->zymnum_verts;
 829         numtriangles = *renderlist++;
 830         elements = renderlist;
 831
 832         expandaliasvert(numverts);
 833
 834         fog = 0;
 835         if (fogenabled)
 836         {
 837                 VectorSubtract(ent->origin, r_origin, diff);
 838                 fog = DotProduct(diff,diff);
 839                 if (fog < 0.01f)
 840                         fog = 0.01f;
 841                 fog = exp(fogdensity/fog);
 842                 if (fog > 1)
 843                         fog = 1;
 844                 if (fog < 0.01f)
 845                         fog = 0;
 846                 // fog method: darken, additive fog
 847                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 848                 // 2. render fog as additive
 849         }
 850         ifog = 1 - fog;
 851
 852         memset(&mstate, 0, sizeof(mstate));
 853         if (ent->effects & EF_ADDITIVE)
 854         {
 855                 mstate.blendfunc1 = GL_SRC_ALPHA;
 856                 mstate.blendfunc2 = GL_ONE;
 857         }
 858         else if (ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 859         {
 860                 mstate.blendfunc1 = GL_SRC_ALPHA;
 861                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 862         }
 863         else
 864         {
 865                 mstate.blendfunc1 = GL_ONE;
 866                 mstate.blendfunc2 = GL_ZERO;
 867         }
 868         colorscale = r_colorscale;
 869         if (gl_combine.integer)
 870         {
 871                 mstate.texrgbscale[0] = 4;
 872                 colorscale *= 0.25f;
 873         }
 874         mstate.tex[0] = R_GetTexture(texture);
 875         R_Mesh_State(&mstate);
 876         ZymoticLerpBones(ent->model->zymnum_bones, (zymbonematrix *) ent->model->zymdata_poses, ent->frameblend, ent->model->zymdata_bones);
 877
 878         R_Mesh_GetSpace(numverts);
 879         ZymoticTransformVerts(numverts, varray_vertex3f, ent->model->zymdata_vertbonecounts, ent->model->zymdata_verts);
 880         R_Mesh_CopyTexCoord2f(0, ent->model->zymdata_texcoords, ent->model->zymnum_verts);
 881         ZymoticCalcNormal3f(numverts, varray_vertex3f, aliasvert_normal3f, ent->model->zymnum_shaders, ent->model->zymdata_renderlist);
 882         R_LightModel(ent, numverts, varray_vertex3f, aliasvert_normal3f, varray_color4f, ifog * colorscale, ifog * colorscale, ifog * colorscale, false);
 883         R_Mesh_Draw(numverts, numtriangles, elements);
 884         c_alias_polys += numtriangles;
 885
 886         if (fog)
 887         {
 888                 memset(&mstate, 0, sizeof(mstate));
 889                 mstate.blendfunc1 = GL_SRC_ALPHA;
 890                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 891                 // FIXME: need alpha mask for fogging...
 892                 //mstate.tex[0] = R_GetTexture(texture);
 893                 R_Mesh_State(&mstate);
 894                 GL_Color(fogcolor[0] * r_colorscale, fogcolor[1] * r_colorscale, fogcolor[2] * r_colorscale, ent->alpha * fog);
 895                 R_Mesh_GetSpace(numverts);
 896                 ZymoticTransformVerts(numverts, varray_vertex3f, ent->model->zymdata_vertbonecounts, ent->model->zymdata_verts);
 897                 R_Mesh_Draw(numverts, numtriangles, elements);
 898                 c_alias_polys += numtriangles;
 899         }
 900 }
 901
 902 void R_Model_Zymotic_Draw(entity_render_t *ent)
 903 {
 904         int i;
 905
 906         if (ent->alpha < (1.0f / 64.0f))
 907                 return; // basically completely transparent
 908
 909         c_models++;
 910
 911         for (i = 0;i < ent->model->zymnum_shaders;i++)
 912         {
 913                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_TextureHasAlpha(ent->model->zymdata_textures[i]))
 914                         R_MeshQueue_AddTransparent(ent->origin, R_DrawZymoticModelMeshCallback, ent, i);
 915                 else
 916                         R_DrawZymoticModelMeshCallback(ent, i);
 917         }
 918 }
 919
 920 void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent)
 921 {
 922         // FIXME
 923 }
 924
 925 void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, float lightradius2, float lightdistbias, float lightsubtract, float *lightcolor)
 926 {
 927         // FIXME
 928 }
 929
 930 void R_Model_Zymotic_DrawOntoLight(entity_render_t *ent)
 931 {
 932         // FIXME
 933 }
 934