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_vertex3f = NULL;
  17 float *aliasvert_svector3f = NULL;
  18 float *aliasvert_tvector3f = NULL;
  19 float *aliasvert_normal3f = NULL;
  20
  21 float *aliasvertcolor2_4f = NULL;
  22 int *aliasvertusage;
  23 zymbonematrix *zymbonepose;
  24
  25 mempool_t *gl_models_mempool;
  26
  27 #define expandaliasvert(newmax) if ((newmax) > aliasvertmax) gl_models_allocarrays(newmax)
  28
  29 void gl_models_allocarrays(int newmax)
  30 {
  31         qbyte *data;
  32         aliasvertmax = newmax;
  33         if (aliasvertarrays != NULL)
  34                 Mem_Free(aliasvertarrays);
  35         aliasvertarrays = Mem_Alloc(gl_models_mempool, aliasvertmax * (sizeof(float[4+4+3+3+3+3]) + sizeof(int[3])));
  36         data = aliasvertarrays;
  37         aliasvertcolor4f = aliasvertcolor4fbuf = (void *)data;data += aliasvertmax * sizeof(float[4]);
  38         aliasvertcolor2_4f = (void *)data;data += aliasvertmax * sizeof(float[4]); // used temporarily for tinted coloring
  39         aliasvert_vertex3f = (void *)data;data += aliasvertmax * sizeof(float[3]);
  40         aliasvert_svector3f = (void *)data;data += aliasvertmax * sizeof(float[3]);
  41         aliasvert_tvector3f = (void *)data;data += aliasvertmax * sizeof(float[3]);
  42         aliasvert_normal3f = (void *)data;data += aliasvertmax * sizeof(float[3]);
  43         aliasvertusage = (void *)data;data += aliasvertmax * sizeof(int[3]);
  44 }
  45
  46 void gl_models_freearrays(void)
  47 {
  48         aliasvertmax = 0;
  49         if (aliasvertarrays != NULL)
  50                 Mem_Free(aliasvertarrays);
  51         aliasvertarrays = NULL;
  52         aliasvertcolor4f = aliasvertcolor4fbuf = NULL;
  53         aliasvertcolor2_4f = NULL;
  54         aliasvert_vertex3f = NULL;
  55         aliasvert_svector3f = NULL;
  56         aliasvert_tvector3f = NULL;
  57         aliasvert_normal3f = NULL;
  58         aliasvertusage = NULL;
  59 }
  60
  61 void gl_models_start(void)
  62 {
  63         // allocate vertex processing arrays
  64         gl_models_mempool = Mem_AllocPool("GL_Models");
  65         zymbonepose = Mem_Alloc(gl_models_mempool, sizeof(zymbonematrix[256]));
  66         gl_models_allocarrays(4096);
  67 }
  68
  69 void gl_models_shutdown(void)
  70 {
  71         gl_models_freearrays();
  72         Mem_FreePool(&gl_models_mempool);
  73 }
  74
  75 void gl_models_newmap(void)
  76 {
  77 }
  78
  79 void GL_Models_Init(void)
  80 {
  81         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
  82 }
  83
  84 #define MODELARRAY_VERTEX 0
  85 #define MODELARRAY_SVECTOR 1
  86 #define MODELARRAY_TVECTOR 2
  87 #define MODELARRAY_NORMAL 3
  88
  89 void R_Model_Alias_GetMesh_Array3f(const entity_render_t *ent, aliasmesh_t *mesh, int whicharray, float *out3f)
  90 {
  91         int i, vertcount;
  92         float lerp1, lerp2, lerp3, lerp4;
  93         const float *vertsbase, *verts1, *verts2, *verts3, *verts4;
  94
  95         switch(whicharray)
  96         {
  97         case MODELARRAY_VERTEX:vertsbase = mesh->data_aliasvertex3f;break;
  98         case MODELARRAY_SVECTOR:vertsbase = mesh->data_aliassvector3f;break;
  99         case MODELARRAY_TVECTOR:vertsbase = mesh->data_aliastvector3f;break;
 100         case MODELARRAY_NORMAL:vertsbase = mesh->data_aliasnormal3f;break;
 101         default:
 102                 Host_Error("R_Model_Alias_GetBlendedArray: unknown whicharray %i\n", whicharray);
 103                 return;
 104         }
 105
 106         vertcount = mesh->num_vertices;
 107         verts1 = vertsbase + ent->frameblend[0].frame * vertcount * 3;
 108         lerp1 = ent->frameblend[0].lerp;
 109         if (ent->frameblend[1].lerp)
 110         {
 111                 verts2 = vertsbase + ent->frameblend[1].frame * vertcount * 3;
 112                 lerp2 = ent->frameblend[1].lerp;
 113                 if (ent->frameblend[2].lerp)
 114                 {
 115                         verts3 = vertsbase + ent->frameblend[2].frame * vertcount * 3;
 116                         lerp3 = ent->frameblend[2].lerp;
 117                         if (ent->frameblend[3].lerp)
 118                         {
 119                                 verts4 = vertsbase + ent->frameblend[3].frame * vertcount * 3;
 120                                 lerp4 = ent->frameblend[3].lerp;
 121                                 for (i = 0;i < vertcount * 3;i++)
 122                                         VectorMAMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, lerp4, verts4 + i, out3f + i);
 123                         }
 124                         else
 125                                 for (i = 0;i < vertcount * 3;i++)
 126                                         VectorMAMAM(lerp1, verts1 + i, lerp2, verts2 + i, lerp3, verts3 + i, out3f + i);
 127                 }
 128                 else
 129                         for (i = 0;i < vertcount * 3;i++)
 130                                 VectorMAM(lerp1, verts1 + i, lerp2, verts2 + i, out3f + i);
 131         }
 132         else
 133                 memcpy(out3f, verts1, vertcount * sizeof(float[3]));
 134 }
 135
 136 aliaslayer_t r_aliasnoskinlayers[2] = {{ALIASLAYER_DIFFUSE, NULL, NULL}, {ALIASLAYER_FOG | ALIASLAYER_FORCEDRAW_IF_FIRSTPASS, NULL, NULL}};
 137 aliasskin_t r_aliasnoskin = {0, 2, r_aliasnoskinlayers};
 138 aliasskin_t *R_FetchAliasSkin(const entity_render_t *ent, const aliasmesh_t *mesh)
 139 {
 140         model_t *model = ent->model;
 141         if (model->numskins)
 142         {
 143                 int s = ent->skinnum;
 144                 if ((unsigned int)s >= (unsigned int)model->numskins)
 145                         s = 0;
 146                 if (model->skinscenes[s].framecount > 1)
 147                         s = model->skinscenes[s].firstframe + (int) (cl.time * model->skinscenes[s].framerate) % model->skinscenes[s].framecount;
 148                 else
 149                         s = model->skinscenes[s].firstframe;
 150                 if (s >= mesh->num_skins)
 151                         s = 0;
 152                 return mesh->data_skins + s;
 153         }
 154         else
 155         {
 156                 r_aliasnoskinlayers[0].texture = r_notexture;
 157                 return &r_aliasnoskin;
 158         }
 159 }
 160
 161 void R_DrawAliasModelCallback (const void *calldata1, int calldata2)
 162 {
 163         int c, fullbright, layernum, firstpass;
 164         float tint[3], fog, ifog, colorscale, ambientcolor4f[4], *fcolor;
 165         vec3_t diff;
 166         qbyte *bcolor;
 167         rmeshstate_t m;
 168         const entity_render_t *ent = calldata1;
 169         aliasmesh_t *mesh = ent->model->aliasdata_meshes + calldata2;
 170         aliaslayer_t *layer;
 171         aliasskin_t *skin;
 172         rcachearrayrequest_t request;
 173
 174         R_Mesh_Matrix(&ent->matrix);
 175
 176         fog = 0;
 177         if (fogenabled)
 178         {
 179                 VectorSubtract(ent->origin, r_origin, diff);
 180                 fog = DotProduct(diff,diff);
 181                 if (fog < 0.01f)
 182                         fog = 0.01f;
 183                 fog = exp(fogdensity/fog);
 184                 if (fog > 1)
 185                         fog = 1;
 186                 if (fog < 0.01f)
 187                         fog = 0;
 188                 // fog method: darken, additive fog
 189                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 190                 // 2. render fog as additive
 191         }
 192         ifog = 1 - fog;
 193
 194         firstpass = true;
 195         skin = R_FetchAliasSkin(ent, mesh);
 196         for (layernum = 0, layer = skin->data_layers;layernum < skin->num_layers;layernum++, layer++)
 197         {
 198                 if (!(layer->flags & ALIASLAYER_FORCEDRAW_IF_FIRSTPASS) || !firstpass)
 199                 {
 200                         if (((layer->flags & ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED) && ent->colormap < 0)
 201                          || ((layer->flags & ALIASLAYER_NODRAW_IF_COLORMAPPED) && ent->colormap >= 0)
 202                          || ((layer->flags & ALIASLAYER_FOG) && !fogenabled)
 203                          ||  (layer->flags & ALIASLAYER_SPECULAR)
 204                          || ((layer->flags & ALIASLAYER_DIFFUSE) && (r_shadow_realtime_world.integer && r_ambient.integer <= 0 && r_fullbright.integer == 0 && !(ent->effects & EF_FULLBRIGHT))))
 205                                 continue;
 206                 }
 207                 memset(&m, 0, sizeof(m));
 208                 if (!firstpass || (ent->effects & EF_ADDITIVE))
 209                 {
 210                         m.blendfunc1 = GL_SRC_ALPHA;
 211                         m.blendfunc2 = GL_ONE;
 212                 }
 213                 else if ((skin->flags & ALIASSKIN_TRANSPARENT) || ent->alpha != 1.0)
 214                 {
 215                         m.blendfunc1 = GL_SRC_ALPHA;
 216                         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 217                 }
 218                 else
 219                 {
 220                         m.blendfunc1 = GL_ONE;
 221                         m.blendfunc2 = GL_ZERO;
 222                 }
 223                 firstpass = false;
 224                 expandaliasvert(mesh->num_vertices);
 225                 colorscale = r_colorscale;
 226                 m.texrgbscale[0] = 1;
 227                 m.tex[0] = R_GetTexture(layer->texture);
 228                 if (gl_combine.integer && layer->flags & (ALIASLAYER_DIFFUSE | ALIASLAYER_SPECULAR))
 229                 {
 230                         colorscale *= 0.25f;
 231                         m.texrgbscale[0] = 4;
 232                 }
 233                 c_alias_polys += mesh->num_triangles;
 234                 if (gl_mesh_copyarrays.integer)
 235                 {
 236                         R_Mesh_State(&m);
 237                         R_Mesh_GetSpace(mesh->num_vertices);
 238                         if (layer->texture != NULL)
 239                                 R_Mesh_CopyTexCoord2f(0, mesh->data_texcoord2f, mesh->num_vertices);
 240                         R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_VERTEX, varray_vertex3f);
 241                 }
 242                 else
 243                 {
 244                         m.pointervertexcount = mesh->num_vertices;
 245                         memset(&request, 0, sizeof(request));
 246                         request.data_size = mesh->num_vertices * sizeof(float[3]);
 247                         request.id_pointer2 = mesh->data_aliasvertex3f;
 248                         request.id_number1 = layernum;
 249                         request.id_number2 = 0;
 250                         request.id_number3 = CRC_Block((void *)ent->frameblend, sizeof(ent->frameblend));
 251                         if (R_Mesh_CacheArray(&request))
 252                                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_VERTEX, request.data);
 253                         m.pointer_vertex = request.data;
 254                         m.pointer_texcoord[0] = layer->texture != NULL ? mesh->data_texcoord2f : NULL;
 255                 }
 256                 if (layer->flags & ALIASLAYER_FOG)
 257                 {
 258                         colorscale *= fog;
 259                         GL_Color(fogcolor[0] * colorscale, fogcolor[1] * colorscale, fogcolor[2] * colorscale, ent->alpha);
 260                 }
 261                 else
 262                 {
 263                         if (layer->flags & (ALIASLAYER_COLORMAP_PANTS | ALIASLAYER_COLORMAP_SHIRT))
 264                         {
 265                                 // 128-224 are backwards ranges
 266                                 if (layer->flags & ALIASLAYER_COLORMAP_PANTS)
 267                                         c = (ent->colormap & 0xF) << 4;
 268                                 else //if (layer->flags & ALIASLAYER_COLORMAP_SHIRT)
 269                                         c = (ent->colormap & 0xF0);
 270                                 c += (c >= 128 && c < 224) ? 4 : 12;
 271                                 bcolor = (qbyte *) (&palette_complete[c]);
 272                                 fullbright = c >= 224;
 273                                 VectorScale(bcolor, (1.0f / 255.0f), tint);
 274                         }
 275                         else
 276                         {
 277                                 tint[0] = tint[1] = tint[2] = 1;
 278                                 fullbright = false;
 279                         }
 280                         colorscale *= ifog;
 281                         if (fullbright || !(layer->flags & ALIASLAYER_DIFFUSE) || r_fullbright.integer || (ent->effects & EF_FULLBRIGHT))
 282                                 GL_Color(tint[0] * colorscale, tint[1] * colorscale, tint[2] * colorscale, ent->alpha);
 283                         else if (r_shadow_realtime_world.integer)
 284                         {
 285                                 colorscale *= r_ambient.value * (2.0f / 128.0f);
 286                                 GL_Color(tint[0] * colorscale, tint[1] * colorscale, tint[2] * colorscale, ent->alpha);
 287                         }
 288                         else
 289                         {
 290                                 if (R_LightModel(ambientcolor4f, ent, tint[0] * colorscale, tint[1] * colorscale, tint[2] * colorscale, ent->alpha, false))
 291                                 {
 292                                         GL_UseColorArray();
 293                                         if (gl_mesh_copyarrays.integer)
 294                                         {
 295                                                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_NORMAL, aliasvert_normal3f);
 296                                                 R_LightModel_CalcVertexColors(ambientcolor4f, mesh->num_vertices, varray_vertex3f, aliasvert_normal3f, varray_color4f);
 297                                         }
 298                                         else
 299                                         {
 300                                                 // request color4f cache
 301                                                 request.data_size = mesh->num_vertices * sizeof(float[4]);
 302                                                 request.id_pointer1 = ent;
 303                                                 request.id_number2 = 2;
 304                                                 request.id_number3 = CRC_Block((void *)ent->frameblend, sizeof(ent->frameblend)) + CRC_Block((void *)&ent->entlightstime, sizeof(ent->entlightstime));
 305                                                 if (R_Mesh_CacheArray(&request))
 306                                                 {
 307                                                         // save off the color pointer before we blow away the request
 308                                                         fcolor = request.data;
 309                                                         m.pointer_color = fcolor;
 310                                                         // request normal3f cache
 311                                                         request.data_size = mesh->num_vertices * sizeof(float[3]);
 312                                                         request.id_pointer1 = NULL;
 313                                                         request.id_number2 = 3;
 314                                                         request.id_number3 = CRC_Block((void *)ent->frameblend, sizeof(ent->frameblend));
 315                                                         if (R_Mesh_CacheArray(&request))
 316                                                                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_NORMAL, request.data);
 317                                                         R_LightModel_CalcVertexColors(ambientcolor4f, mesh->num_vertices, m.pointer_vertex, request.data, fcolor);
 318                                                 }
 319                                                 else
 320                                                         m.pointer_color = request.data;
 321                                         }
 322                                 }
 323                                 else
 324                                         GL_Color(ambientcolor4f[0], ambientcolor4f[1], ambientcolor4f[2], ambientcolor4f[3]);
 325                         }
 326                 }
 327                 if (!gl_mesh_copyarrays.integer)
 328                         R_Mesh_State(&m);
 329                 R_Mesh_Draw(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
 330         }
 331 }
 332
 333 void R_Model_Alias_Draw(entity_render_t *ent)
 334 {
 335         int meshnum;
 336         aliasmesh_t *mesh;
 337         if (ent->alpha < (1.0f / 64.0f))
 338                 return; // basically completely transparent
 339
 340         c_models++;
 341
 342         for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++, mesh++)
 343         {
 344                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_FetchAliasSkin(ent, mesh)->flags & ALIASSKIN_TRANSPARENT)
 345                         R_MeshQueue_AddTransparent(ent->origin, R_DrawAliasModelCallback, ent, meshnum);
 346                 else
 347                         R_DrawAliasModelCallback(ent, meshnum);
 348         }
 349 }
 350
 351 void R_Model_Alias_DrawFakeShadow (entity_render_t *ent)
 352 {
 353         int i, meshnum;
 354         aliasmesh_t *mesh;
 355         aliasskin_t *skin;
 356         rmeshstate_t m;
 357         float *v, plane[4], dist, projection[3], floororigin[3], surfnormal[3], lightdirection[3], v2[3];
 358         rcachearrayrequest_t request;
 359
 360         if ((ent->effects & EF_ADDITIVE) || ent->alpha < 1)
 361                 return;
 362
 363         lightdirection[0] = 0.5;
 364         lightdirection[1] = 0.2;
 365         lightdirection[2] = -1;
 366         VectorNormalizeFast(lightdirection);
 367
 368         VectorMA(ent->origin, 65536.0f, lightdirection, v2);
 369         if (CL_TraceLine(ent->origin, v2, floororigin, surfnormal, 0, false, NULL) == 1)
 370                 return;
 371
 372         R_Mesh_Matrix(&ent->matrix);
 373
 374         memset(&m, 0, sizeof(m));
 375         m.blendfunc1 = GL_SRC_ALPHA;
 376         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 377         if (gl_mesh_copyarrays.integer)
 378                 R_Mesh_State(&m);
 379         GL_Color(0, 0, 0, 0.5);
 380
 381         // put a light direction in the entity's coordinate space
 382         Matrix4x4_Transform3x3(&ent->inversematrix, lightdirection, projection);
 383         VectorNormalizeFast(projection);
 384
 385         // put the plane's normal in the entity's coordinate space
 386         Matrix4x4_Transform3x3(&ent->inversematrix, surfnormal, plane);
 387         VectorNormalizeFast(plane);
 388
 389         // put the plane's distance in the entity's coordinate space
 390         VectorSubtract(floororigin, ent->origin, floororigin);
 391         plane[3] = DotProduct(floororigin, surfnormal) + 2;
 392
 393         dist = -1.0f / DotProduct(projection, plane);
 394         VectorScale(projection, dist, projection);
 395         memset(&request, 0, sizeof(request));
 396         for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++)
 397         {
 398                 skin = R_FetchAliasSkin(ent, mesh);
 399                 if (skin->flags & ALIASSKIN_TRANSPARENT)
 400                         continue;
 401                 if (gl_mesh_copyarrays.integer)
 402                 {
 403                         R_Mesh_GetSpace(mesh->num_vertices);
 404                         R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_VERTEX, varray_vertex3f);
 405                         for (i = 0, v = varray_vertex3f;i < mesh->num_vertices;i++, v += 3)
 406                         {
 407                                 dist = DotProduct(v, plane) - plane[3];
 408                                 if (dist > 0)
 409                                         VectorMA(v, dist, projection, v);
 410                         }
 411                 }
 412                 else
 413                 {
 414                         request.data_size = mesh->num_vertices * sizeof(float[3]);
 415                         request.id_pointer1 = mesh;
 416                         request.id_number1 = CRC_Block((void *)&ent->matrix, sizeof(ent->matrix));
 417                         request.id_number2 = CRC_Block((void *)&plane, sizeof(plane));
 418                         request.id_number3 = CRC_Block((void *)&ent->frameblend, sizeof(ent->frameblend));
 419                         m.pointervertexcount = mesh->num_vertices;
 420                         if (R_Mesh_CacheArray(&request))
 421                         {
 422                                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_VERTEX, request.data);
 423                                 for (i = 0, v = request.data;i < mesh->num_vertices;i++, v += 3)
 424                                 {
 425                                         dist = DotProduct(v, plane) - plane[3];
 426                                         if (dist > 0)
 427                                                 VectorMA(v, dist, projection, v);
 428                                 }
 429                         }
 430                         m.pointer_vertex = request.data;
 431                         R_Mesh_State(&m);
 432                 }
 433                 c_alias_polys += mesh->num_triangles;
 434                 R_Mesh_Draw(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i);
 435         }
 436 }
 437
 438 void R_Model_Alias_DrawShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius)
 439 {
 440         int meshnum;
 441         aliasmesh_t *mesh;
 442         aliasskin_t *skin;
 443         float projectdistance;
 444         if (ent->effects & EF_ADDITIVE || ent->alpha < 1)
 445                 return;
 446         projectdistance = lightradius + ent->model->radius - sqrt(DotProduct(relativelightorigin, relativelightorigin));
 447         if (projectdistance > 0.1)
 448         {
 449                 R_Mesh_Matrix(&ent->matrix);
 450                 for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++, mesh++)
 451                 {
 452                         skin = R_FetchAliasSkin(ent, mesh);
 453                         if (skin->flags & ALIASSKIN_TRANSPARENT)
 454                                 continue;
 455                         R_Mesh_GetSpace(mesh->num_vertices * 2);
 456                         R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_VERTEX, varray_vertex3f);
 457                         R_Shadow_Volume(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, mesh->data_neighbor3i, relativelightorigin, lightradius, projectdistance);
 458                 }
 459         }
 460 }
 461
 462 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)
 463 {
 464         int c, meshnum, layernum;
 465         float fog, ifog, lightcolor2[3];
 466         vec3_t diff;
 467         qbyte *bcolor;
 468         aliasmesh_t *mesh;
 469         aliaslayer_t *layer;
 470         aliasskin_t *skin;
 471
 472         if (ent->effects & (EF_ADDITIVE | EF_FULLBRIGHT) || ent->alpha < 1)
 473                 return;
 474
 475         R_Mesh_Matrix(&ent->matrix);
 476
 477         fog = 0;
 478         if (fogenabled)
 479         {
 480                 VectorSubtract(ent->origin, r_origin, diff);
 481                 fog = DotProduct(diff,diff);
 482                 if (fog < 0.01f)
 483                         fog = 0.01f;
 484                 fog = exp(fogdensity/fog);
 485                 if (fog > 1)
 486                         fog = 1;
 487                 if (fog < 0.01f)
 488                         fog = 0;
 489                 // fog method: darken, additive fog
 490                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 491                 // 2. render fog as additive
 492         }
 493         ifog = 1 - fog;
 494
 495         for (meshnum = 0, mesh = ent->model->aliasdata_meshes;meshnum < ent->model->aliasnum_meshes;meshnum++, mesh++)
 496         {
 497                 skin = R_FetchAliasSkin(ent, mesh);
 498                 if (skin->flags & ALIASSKIN_TRANSPARENT)
 499                         continue;
 500                 expandaliasvert(mesh->num_vertices);
 501                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_VERTEX, aliasvert_vertex3f);
 502                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_SVECTOR, aliasvert_svector3f);
 503                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_TVECTOR, aliasvert_tvector3f);
 504                 R_Model_Alias_GetMesh_Array3f(ent, mesh, MODELARRAY_NORMAL, aliasvert_normal3f);
 505                 for (layernum = 0, layer = skin->data_layers;layernum < skin->num_layers;layernum++, layer++)
 506                 {
 507                         if (!(layer->flags & (ALIASLAYER_DIFFUSE | ALIASLAYER_SPECULAR))
 508                          || ((layer->flags & ALIASLAYER_NODRAW_IF_NOTCOLORMAPPED) && ent->colormap < 0)
 509                          || ((layer->flags & ALIASLAYER_NODRAW_IF_COLORMAPPED) && ent->colormap >= 0))
 510                                 continue;
 511                         lightcolor2[0] = lightcolor[0] * ifog;
 512                         lightcolor2[1] = lightcolor[1] * ifog;
 513                         lightcolor2[2] = lightcolor[2] * ifog;
 514                         if (layer->flags & ALIASLAYER_SPECULAR)
 515                         {
 516                                 c_alias_polys += mesh->num_triangles;
 517                                 R_Shadow_SpecularLighting(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, aliasvert_vertex3f, aliasvert_svector3f, aliasvert_tvector3f, aliasvert_normal3f, mesh->data_texcoord2f, relativelightorigin, relativeeyeorigin, lightradius, lightcolor2, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, layer->texture, layer->nmap, NULL);
 518                         }
 519                         else if (layer->flags & ALIASLAYER_DIFFUSE)
 520                         {
 521                                 if (layer->flags & ALIASLAYER_COLORMAP_PANTS)
 522                                 {
 523                                         // 128-224 are backwards ranges
 524                                         c = (ent->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12;
 525                                         // fullbright passes were already taken care of, so skip them in realtime lighting passes
 526                                         if (c >= 224)
 527                                                 continue;
 528                                         bcolor = (qbyte *) (&palette_complete[c]);
 529                                         lightcolor2[0] *= bcolor[0] * (1.0f / 255.0f);
 530                                         lightcolor2[1] *= bcolor[1] * (1.0f / 255.0f);
 531                                         lightcolor2[2] *= bcolor[2] * (1.0f / 255.0f);
 532                                 }
 533                                 else if (layer->flags & ALIASLAYER_COLORMAP_SHIRT)
 534                                 {
 535                                         // 128-224 are backwards ranges
 536                                         c = (ent->colormap & 0xF0);c += (c >= 128 && c < 224) ? 4 : 12;
 537                                         // fullbright passes were already taken care of, so skip them in realtime lighting passes
 538                                         if (c >= 224)
 539                                                 continue;
 540                                         bcolor = (qbyte *) (&palette_complete[c]);
 541                                         lightcolor2[0] *= bcolor[0] * (1.0f / 255.0f);
 542                                         lightcolor2[1] *= bcolor[1] * (1.0f / 255.0f);
 543                                         lightcolor2[2] *= bcolor[2] * (1.0f / 255.0f);
 544                                 }
 545                                 c_alias_polys += mesh->num_triangles;
 546                                 R_Shadow_DiffuseLighting(mesh->num_vertices, mesh->num_triangles, mesh->data_element3i, aliasvert_vertex3f, aliasvert_svector3f, aliasvert_tvector3f, aliasvert_normal3f, mesh->data_texcoord2f, relativelightorigin, lightradius, lightcolor2, matrix_modeltofilter, matrix_modeltoattenuationxyz, matrix_modeltoattenuationz, layer->texture, layer->nmap, NULL);
 547                         }
 548                 }
 549         }
 550 }
 551
 552 int ZymoticLerpBones(int count, const zymbonematrix *bonebase, const frameblend_t *blend, const zymbone_t *bone)
 553 {
 554         int i;
 555         float lerp1, lerp2, lerp3, lerp4;
 556         zymbonematrix *out, rootmatrix, m;
 557         const zymbonematrix *bone1, *bone2, *bone3, *bone4;
 558
 559         rootmatrix.m[0][0] = 1;
 560         rootmatrix.m[0][1] = 0;
 561         rootmatrix.m[0][2] = 0;
 562         rootmatrix.m[0][3] = 0;
 563         rootmatrix.m[1][0] = 0;
 564         rootmatrix.m[1][1] = 1;
 565         rootmatrix.m[1][2] = 0;
 566         rootmatrix.m[1][3] = 0;
 567         rootmatrix.m[2][0] = 0;
 568         rootmatrix.m[2][1] = 0;
 569         rootmatrix.m[2][2] = 1;
 570         rootmatrix.m[2][3] = 0;
 571
 572         bone1 = bonebase + blend[0].frame * count;
 573         lerp1 = blend[0].lerp;
 574         if (blend[1].lerp)
 575         {
 576                 bone2 = bonebase + blend[1].frame * count;
 577                 lerp2 = blend[1].lerp;
 578                 if (blend[2].lerp)
 579                 {
 580                         bone3 = bonebase + blend[2].frame * count;
 581                         lerp3 = blend[2].lerp;
 582                         if (blend[3].lerp)
 583                         {
 584                                 // 4 poses
 585                                 bone4 = bonebase + blend[3].frame * count;
 586                                 lerp4 = blend[3].lerp;
 587                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 588                                 {
 589                                         // interpolate matrices
 590                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 591                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 592                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 593                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 594                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 595                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 596                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 597                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 598                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 599                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 600                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 601                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 602                                         if (bone->parent >= 0)
 603                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 604                                         else
 605                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 606                                         bone1++;
 607                                         bone2++;
 608                                         bone3++;
 609                                         bone4++;
 610                                         bone++;
 611                                 }
 612                         }
 613                         else
 614                         {
 615                                 // 3 poses
 616                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 617                                 {
 618                                         // interpolate matrices
 619                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 620                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 621                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 622                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 623                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 624                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 625                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 626                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 627                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 628                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 629                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 630                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 631                                         if (bone->parent >= 0)
 632                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 633                                         else
 634                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 635                                         bone1++;
 636                                         bone2++;
 637                                         bone3++;
 638                                         bone++;
 639                                 }
 640                         }
 641                 }
 642                 else
 643                 {
 644                         // 2 poses
 645                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 646                         {
 647                                 // interpolate matrices
 648                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 649                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 650                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 651                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 652                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 653                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 654                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 655                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 656                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 657                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 658                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 659                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 660                                 if (bone->parent >= 0)
 661                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 662                                 else
 663                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 664                                 bone1++;
 665                                 bone2++;
 666                                 bone++;
 667                         }
 668                 }
 669         }
 670         else
 671         {
 672                 // 1 pose
 673                 if (lerp1 != 1)
 674                 {
 675                         // lerp != 1.0
 676                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 677                         {
 678                                 // interpolate matrices
 679                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 680                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 681                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 682                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 683                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 684                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 685                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 686                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 687                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 688                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 689                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 690                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 691                                 if (bone->parent >= 0)
 692                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 693                                 else
 694                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 695                                 bone1++;
 696                                 bone++;
 697                         }
 698                 }
 699                 else
 700                 {
 701                         // lerp == 1.0
 702                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 703                         {
 704                                 if (bone->parent >= 0)
 705                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &bone1->m[0][0], &out->m[0][0]);
 706                                 else
 707                                         R_ConcatTransforms(&rootmatrix.m[0][0], &bone1->m[0][0], &out->m[0][0]);
 708                                 bone1++;
 709                                 bone++;
 710                         }
 711                 }
 712         }
 713         return true;
 714 }
 715
 716 void ZymoticTransformVerts(int vertcount, float *vertex, int *bonecounts, zymvertex_t *vert)
 717 {
 718         int c;
 719         float *out = vertex;
 720         zymbonematrix *matrix;
 721         while(vertcount--)
 722         {
 723                 c = *bonecounts++;
 724                 // FIXME: validate bonecounts at load time (must be >= 1)
 725                 // FIXME: need 4th component in origin, for how much of the translate to blend in
 726                 if (c == 1)
 727                 {
 728                         matrix = &zymbonepose[vert->bonenum];
 729                         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];
 730                         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];
 731                         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];
 732                         vert++;
 733                 }
 734                 else
 735                 {
 736                         VectorClear(out);
 737                         while(c--)
 738                         {
 739                                 matrix = &zymbonepose[vert->bonenum];
 740                                 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];
 741                                 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];
 742                                 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];
 743                                 vert++;
 744                         }
 745                 }
 746                 out += 3;
 747         }
 748 }
 749
 750 void ZymoticCalcNormal3f(int vertcount, float *vertex3f, float *normal3f, int shadercount, int *renderlist)
 751 {
 752         int a, b, c, d;
 753         float *out, v1[3], v2[3], normal[3], s;
 754         int *u;
 755         // clear normals
 756         memset(normal3f, 0, sizeof(float) * vertcount * 3);
 757         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 758         // parse render list and accumulate surface normals
 759         while(shadercount--)
 760         {
 761                 d = *renderlist++;
 762                 while (d--)
 763                 {
 764                         a = renderlist[0]*4;
 765                         b = renderlist[1]*4;
 766                         c = renderlist[2]*4;
 767                         v1[0] = vertex3f[a+0] - vertex3f[b+0];
 768                         v1[1] = vertex3f[a+1] - vertex3f[b+1];
 769                         v1[2] = vertex3f[a+2] - vertex3f[b+2];
 770                         v2[0] = vertex3f[c+0] - vertex3f[b+0];
 771                         v2[1] = vertex3f[c+1] - vertex3f[b+1];
 772                         v2[2] = vertex3f[c+2] - vertex3f[b+2];
 773                         CrossProduct(v1, v2, normal);
 774                         VectorNormalizeFast(normal);
 775                         // add surface normal to vertices
 776                         a = renderlist[0] * 3;
 777                         normal3f[a+0] += normal[0];
 778                         normal3f[a+1] += normal[1];
 779                         normal3f[a+2] += normal[2];
 780                         aliasvertusage[renderlist[0]]++;
 781                         a = renderlist[1] * 3;
 782                         normal3f[a+0] += normal[0];
 783                         normal3f[a+1] += normal[1];
 784                         normal3f[a+2] += normal[2];
 785                         aliasvertusage[renderlist[1]]++;
 786                         a = renderlist[2] * 3;
 787                         normal3f[a+0] += normal[0];
 788                         normal3f[a+1] += normal[1];
 789                         normal3f[a+2] += normal[2];
 790                         aliasvertusage[renderlist[2]]++;
 791                         renderlist += 3;
 792                 }
 793         }
 794         // FIXME: precalc this
 795         // average surface normals
 796         out = normal3f;
 797         u = aliasvertusage;
 798         while(vertcount--)
 799         {
 800                 if (*u > 1)
 801                 {
 802                         s = ixtable[*u];
 803                         out[0] *= s;
 804                         out[1] *= s;
 805                         out[2] *= s;
 806                 }
 807                 u++;
 808                 out += 3;
 809         }
 810 }
 811
 812 void R_DrawZymoticModelMeshCallback (const void *calldata1, int calldata2)
 813 {
 814         float fog, ifog, colorscale, ambientcolor4f[4];
 815         vec3_t diff;
 816         int i, *renderlist, *elements;
 817         rtexture_t *texture;
 818         rmeshstate_t mstate;
 819         const entity_render_t *ent = calldata1;
 820         int shadernum = calldata2;
 821         int numverts, numtriangles;
 822
 823         R_Mesh_Matrix(&ent->matrix);
 824
 825         // find the vertex index list and texture
 826         renderlist = ent->model->zymdata_renderlist;
 827         for (i = 0;i < shadernum;i++)
 828                 renderlist += renderlist[0] * 3 + 1;
 829         texture = ent->model->zymdata_textures[shadernum];
 830
 831         numverts = ent->model->zymnum_verts;
 832         numtriangles = *renderlist++;
 833         elements = renderlist;
 834
 835         expandaliasvert(numverts);
 836
 837         fog = 0;
 838         if (fogenabled)
 839         {
 840                 VectorSubtract(ent->origin, r_origin, diff);
 841                 fog = DotProduct(diff,diff);
 842                 if (fog < 0.01f)
 843                         fog = 0.01f;
 844                 fog = exp(fogdensity/fog);
 845                 if (fog > 1)
 846                         fog = 1;
 847                 if (fog < 0.01f)
 848                         fog = 0;
 849                 // fog method: darken, additive fog
 850                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 851                 // 2. render fog as additive
 852         }
 853         ifog = 1 - fog;
 854
 855         memset(&mstate, 0, sizeof(mstate));
 856         if (ent->effects & EF_ADDITIVE)
 857         {
 858                 mstate.blendfunc1 = GL_SRC_ALPHA;
 859                 mstate.blendfunc2 = GL_ONE;
 860         }
 861         else if (ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 862         {
 863                 mstate.blendfunc1 = GL_SRC_ALPHA;
 864                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 865         }
 866         else
 867         {
 868                 mstate.blendfunc1 = GL_ONE;
 869                 mstate.blendfunc2 = GL_ZERO;
 870         }
 871         colorscale = r_colorscale;
 872         if (gl_combine.integer)
 873         {
 874                 mstate.texrgbscale[0] = 4;
 875                 colorscale *= 0.25f;
 876         }
 877         mstate.tex[0] = R_GetTexture(texture);
 878         R_Mesh_State(&mstate);
 879         ZymoticLerpBones(ent->model->zymnum_bones, (zymbonematrix *) ent->model->zymdata_poses, ent->frameblend, ent->model->zymdata_bones);
 880
 881         R_Mesh_GetSpace(numverts);
 882         ZymoticTransformVerts(numverts, varray_vertex3f, ent->model->zymdata_vertbonecounts, ent->model->zymdata_verts);
 883         R_Mesh_CopyTexCoord2f(0, ent->model->zymdata_texcoords, ent->model->zymnum_verts);
 884         ZymoticCalcNormal3f(numverts, varray_vertex3f, aliasvert_normal3f, ent->model->zymnum_shaders, ent->model->zymdata_renderlist);
 885         if (R_LightModel(ambientcolor4f, ent, ifog * colorscale, ifog * colorscale, ifog * colorscale, ent->alpha, false))
 886         {
 887                 GL_UseColorArray();
 888                 R_LightModel_CalcVertexColors(ambientcolor4f, numverts, varray_vertex3f, aliasvert_normal3f, varray_color4f);
 889         }
 890         else
 891                 GL_Color(ambientcolor4f[0], ambientcolor4f[1], ambientcolor4f[2], ambientcolor4f[3]);
 892         R_Mesh_Draw(numverts, numtriangles, elements);
 893         c_alias_polys += numtriangles;
 894
 895         if (fog)
 896         {
 897                 memset(&mstate, 0, sizeof(mstate));
 898                 mstate.blendfunc1 = GL_SRC_ALPHA;
 899                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 900                 // FIXME: need alpha mask for fogging...
 901                 //mstate.tex[0] = R_GetTexture(texture);
 902                 R_Mesh_State(&mstate);
 903                 GL_Color(fogcolor[0] * r_colorscale, fogcolor[1] * r_colorscale, fogcolor[2] * r_colorscale, ent->alpha * fog);
 904                 R_Mesh_GetSpace(numverts);
 905                 ZymoticTransformVerts(numverts, varray_vertex3f, ent->model->zymdata_vertbonecounts, ent->model->zymdata_verts);
 906                 R_Mesh_Draw(numverts, numtriangles, elements);
 907                 c_alias_polys += numtriangles;
 908         }
 909 }
 910
 911 void R_Model_Zymotic_Draw(entity_render_t *ent)
 912 {
 913         int i;
 914
 915         if (ent->alpha < (1.0f / 64.0f))
 916                 return; // basically completely transparent
 917
 918         c_models++;
 919
 920         for (i = 0;i < ent->model->zymnum_shaders;i++)
 921         {
 922                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_TextureHasAlpha(ent->model->zymdata_textures[i]))
 923                         R_MeshQueue_AddTransparent(ent->origin, R_DrawZymoticModelMeshCallback, ent, i);
 924                 else
 925                         R_DrawZymoticModelMeshCallback(ent, i);
 926         }
 927 }
 928
 929 void R_Model_Zymotic_DrawFakeShadow(entity_render_t *ent)
 930 {
 931         // FIXME
 932 }
 933
 934 void R_Model_Zymotic_DrawLight(entity_render_t *ent, vec3_t relativelightorigin, float lightradius2, float lightdistbias, float lightsubtract, float *lightcolor)
 935 {
 936         // FIXME
 937 }
 938
 939 void R_Model_Zymotic_DrawOntoLight(entity_render_t *ent)
 940 {
 941         // FIXME
 942 }
 943