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
  13 float *aliasvertbuf;
  14 float *aliasvertcolorbuf;
  15 float *aliasvert; // this may point at aliasvertbuf or at vertex arrays in the mesh backend
  16 float *aliasvertcolor; // this may point at aliasvertcolorbuf or at vertex arrays in the mesh backend
  17
  18 float *aliasvertcolor2;
  19 float *aliasvertnorm;
  20 int *aliasvertusage;
  21 zymbonematrix *zymbonepose;
  22
  23 mempool_t *gl_models_mempool;
  24
  25 void gl_models_start(void)
  26 {
  27         // allocate vertex processing arrays
  28         gl_models_mempool = Mem_AllocPool("GL_Models");
  29         aliasvert = aliasvertbuf = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][4]));
  30         aliasvertcolor = aliasvertcolorbuf = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][4]));
  31         aliasvertnorm = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][3]));
  32         aliasvertcolor2 = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][4])); // used temporarily for tinted coloring
  33         zymbonepose = Mem_Alloc(gl_models_mempool, sizeof(zymbonematrix[256]));
  34         aliasvertusage = Mem_Alloc(gl_models_mempool, sizeof(int[MD2MAX_VERTS]));
  35 }
  36
  37 void gl_models_shutdown(void)
  38 {
  39         Mem_FreePool(&gl_models_mempool);
  40 }
  41
  42 void gl_models_newmap(void)
  43 {
  44 }
  45
  46 void GL_Models_Init(void)
  47 {
  48         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
  49 }
  50
  51 void R_AliasLerpVerts(int vertcount, float *vertices, float *normals,
  52                 float lerp1, const trivertx_t *verts1, const vec3_t fscale1, const vec3_t translate1,
  53                 float lerp2, const trivertx_t *verts2, const vec3_t fscale2, const vec3_t translate2,
  54                 float lerp3, const trivertx_t *verts3, const vec3_t fscale3, const vec3_t translate3,
  55                 float lerp4, const trivertx_t *verts4, const vec3_t fscale4, const vec3_t translate4)
  56 {
  57         int i;
  58         vec3_t scale1, scale2, scale3, scale4, translate;
  59         const float *n1, *n2, *n3, *n4;
  60         float *av, *avn;
  61         av = vertices;
  62         avn = normals;
  63         VectorScale(fscale1, lerp1, scale1);
  64         if (lerp2)
  65         {
  66                 VectorScale(fscale2, lerp2, scale2);
  67                 if (lerp3)
  68                 {
  69                         VectorScale(fscale3, lerp3, scale3);
  70                         if (lerp4)
  71                         {
  72                                 VectorScale(fscale4, lerp4, scale4);
  73                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
  74                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
  75                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
  76                                 // generate vertices
  77                                 for (i = 0;i < vertcount;i++)
  78                                 {
  79                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
  80                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
  81                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
  82                                         n1 = m_bytenormals[verts1->lightnormalindex];
  83                                         n2 = m_bytenormals[verts2->lightnormalindex];
  84                                         n3 = m_bytenormals[verts3->lightnormalindex];
  85                                         n4 = m_bytenormals[verts4->lightnormalindex];
  86                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
  87                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
  88                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
  89                                         av += 4;
  90                                         avn += 3;
  91                                         verts1++;verts2++;verts3++;verts4++;
  92                                 }
  93                         }
  94                         else
  95                         {
  96                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
  97                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
  98                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
  99                                 // generate vertices
 100                                 for (i = 0;i < vertcount;i++)
 101                                 {
 102                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
 103                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
 104                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
 105                                         n1 = m_bytenormals[verts1->lightnormalindex];
 106                                         n2 = m_bytenormals[verts2->lightnormalindex];
 107                                         n3 = m_bytenormals[verts3->lightnormalindex];
 108                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
 109                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
 110                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
 111                                         av += 4;
 112                                         avn += 3;
 113                                         verts1++;verts2++;verts3++;
 114                                 }
 115                         }
 116                 }
 117                 else
 118                 {
 119                         translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
 120                         translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
 121                         translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
 122                         // generate vertices
 123                         for (i = 0;i < vertcount;i++)
 124                         {
 125                                 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
 126                                 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
 127                                 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
 128                                 n1 = m_bytenormals[verts1->lightnormalindex];
 129                                 n2 = m_bytenormals[verts2->lightnormalindex];
 130                                 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
 131                                 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
 132                                 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
 133                                 av += 4;
 134                                 avn += 3;
 135                                 verts1++;verts2++;
 136                         }
 137                 }
 138         }
 139         else
 140         {
 141                 translate[0] = translate1[0] * lerp1;
 142                 translate[1] = translate1[1] * lerp1;
 143                 translate[2] = translate1[2] * lerp1;
 144                 // generate vertices
 145                 if (lerp1 != 1)
 146                 {
 147                         // general but almost never used case
 148                         for (i = 0;i < vertcount;i++)
 149                         {
 150                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 151                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 152                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 153                                 n1 = m_bytenormals[verts1->lightnormalindex];
 154                                 avn[0] = n1[0] * lerp1;
 155                                 avn[1] = n1[1] * lerp1;
 156                                 avn[2] = n1[2] * lerp1;
 157                                 av += 4;
 158                                 avn += 3;
 159                                 verts1++;
 160                         }
 161                 }
 162                 else
 163                 {
 164                         // fast normal case
 165                         for (i = 0;i < vertcount;i++)
 166                         {
 167                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 168                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 169                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 170                                 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
 171                                 av += 4;
 172                                 avn += 3;
 173                                 verts1++;
 174                         }
 175                 }
 176         }
 177 }
 178
 179 skinframe_t *R_FetchSkinFrame(const entity_render_t *ent)
 180 {
 181         model_t *model = ent->model;
 182         unsigned int s = (unsigned int) ent->skinnum;
 183         if (s >= model->numskins)
 184                 s = 0;
 185         if (model->skinscenes[s].framecount > 1)
 186                 return &model->skinframes[model->skinscenes[s].firstframe + (int) (cl.time * 10) % model->skinscenes[s].framecount];
 187         else
 188                 return &model->skinframes[model->skinscenes[s].firstframe];
 189 }
 190
 191 void R_LerpMDLMD2Vertices(const entity_render_t *ent, float *vertices, float *normals)
 192 {
 193         const md2frame_t *frame1, *frame2, *frame3, *frame4;
 194         const trivertx_t *frame1verts, *frame2verts, *frame3verts, *frame4verts;
 195         const model_t *model = ent->model;
 196
 197         frame1 = &model->mdlmd2data_frames[ent->frameblend[0].frame];
 198         frame2 = &model->mdlmd2data_frames[ent->frameblend[1].frame];
 199         frame3 = &model->mdlmd2data_frames[ent->frameblend[2].frame];
 200         frame4 = &model->mdlmd2data_frames[ent->frameblend[3].frame];
 201         frame1verts = &model->mdlmd2data_pose[ent->frameblend[0].frame * model->numverts];
 202         frame2verts = &model->mdlmd2data_pose[ent->frameblend[1].frame * model->numverts];
 203         frame3verts = &model->mdlmd2data_pose[ent->frameblend[2].frame * model->numverts];
 204         frame4verts = &model->mdlmd2data_pose[ent->frameblend[3].frame * model->numverts];
 205         R_AliasLerpVerts(model->numverts, vertices, normals,
 206                 ent->frameblend[0].lerp, frame1verts, frame1->scale, frame1->translate,
 207                 ent->frameblend[1].lerp, frame2verts, frame2->scale, frame2->translate,
 208                 ent->frameblend[2].lerp, frame3verts, frame3->scale, frame3->translate,
 209                 ent->frameblend[3].lerp, frame4verts, frame4->scale, frame4->translate);
 210 }
 211
 212 void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
 213 {
 214         int i, c, fullbright, pantsfullbright, shirtfullbright, colormapped, tex;
 215         float pantscolor[3], shirtcolor[3];
 216         float fog, ifog, colorscale;
 217         vec3_t diff;
 218         qbyte *bcolor;
 219         rmeshstate_t m;
 220         model_t *model;
 221         skinframe_t *skinframe;
 222         const entity_render_t *ent = calldata1;
 223         int blendfunc1, blendfunc2;
 224
 225         R_Mesh_Matrix(&ent->matrix);
 226
 227         model = ent->model;
 228         R_Mesh_ResizeCheck(model->numverts);
 229
 230         skinframe = R_FetchSkinFrame(ent);
 231
 232         fullbright = (ent->effects & EF_FULLBRIGHT) != 0;
 233
 234         fog = 0;
 235         if (fogenabled)
 236         {
 237                 VectorSubtract(ent->origin, r_origin, diff);
 238                 fog = DotProduct(diff,diff);
 239                 if (fog < 0.01f)
 240                         fog = 0.01f;
 241                 fog = exp(fogdensity/fog);
 242                 if (fog > 1)
 243                         fog = 1;
 244                 if (fog < 0.01f)
 245                         fog = 0;
 246                 // fog method: darken, additive fog
 247                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 248                 // 2. render fog as additive
 249         }
 250         ifog = 1 - fog;
 251
 252         if (ent->effects & EF_ADDITIVE)
 253         {
 254                 blendfunc1 = GL_SRC_ALPHA;
 255                 blendfunc2 = GL_ONE;
 256         }
 257         else if (ent->alpha != 1.0 || skinframe->fog != NULL)
 258         {
 259                 blendfunc1 = GL_SRC_ALPHA;
 260                 blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 261         }
 262         else
 263         {
 264                 blendfunc1 = GL_ONE;
 265                 blendfunc2 = GL_ZERO;
 266         }
 267
 268         if (!skinframe->base && !skinframe->pants && !skinframe->shirt && !skinframe->glow)
 269         {
 270                 // untextured
 271                 memset(&m, 0, sizeof(m));
 272                 m.blendfunc1 = blendfunc1;
 273                 m.blendfunc2 = blendfunc2;
 274                 colorscale = r_colorscale;
 275                 if (gl_combine.integer)
 276                 {
 277                         colorscale *= 0.25f;
 278                         m.texrgbscale[0] = 4;
 279                 }
 280                 m.tex[0] = R_GetTexture(r_notexture);
 281                 R_Mesh_State(&m);
 282                 c_alias_polys += model->numtris;
 283                 for (i = 0;i < model->numverts * 2;i++)
 284                         varray_texcoord[0][i] = model->mdlmd2data_texcoords[i] * 8.0f;
 285                 R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 286                 R_LightModel(ent, model->numverts, varray_vertex, aliasvertnorm, varray_color, colorscale, colorscale, colorscale, false);
 287                 GL_UseColorArray();
 288                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 289                 return;
 290         }
 291
 292         colormapped = !skinframe->merged || (ent->colormap >= 0 && skinframe->base && (skinframe->pants || skinframe->shirt));
 293         if (colormapped)
 294         {
 295                 // 128-224 are backwards ranges
 296                 c = (ent->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12;
 297                 bcolor = (qbyte *) (&d_8to24table[c]);
 298                 pantsfullbright = c >= 224;
 299                 VectorScale(bcolor, (1.0f / 255.0f), pantscolor);
 300                 c = (ent->colormap & 0xF0);c += (c >= 128 && c < 224) ? 4 : 12;
 301                 bcolor = (qbyte *) (&d_8to24table[c]);
 302                 shirtfullbright = c >= 224;
 303                 VectorScale(bcolor, (1.0f / 255.0f), shirtcolor);
 304         }
 305         else
 306         {
 307                 pantscolor[0] = pantscolor[1] = pantscolor[2] = shirtcolor[0] = shirtcolor[1] = shirtcolor[2] = 1;
 308                 pantsfullbright = shirtfullbright = false;
 309         }
 310
 311         tex = colormapped ? R_GetTexture(skinframe->base) : R_GetTexture(skinframe->merged);
 312         if (tex)
 313         {
 314                 memset(&m, 0, sizeof(m));
 315                 m.blendfunc1 = blendfunc1;
 316                 m.blendfunc2 = blendfunc2;
 317                 colorscale = r_colorscale;
 318                 if (gl_combine.integer)
 319                 {
 320                         colorscale *= 0.25f;
 321                         m.texrgbscale[0] = 4;
 322                 }
 323                 m.tex[0] = tex;
 324                 R_Mesh_State(&m);
 325                 R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 326                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 327                 if (fullbright)
 328                         GL_Color(colorscale * ifog, colorscale * ifog, colorscale * ifog, ent->alpha);
 329                 else
 330                 {
 331                         GL_UseColorArray();
 332                         R_LightModel(ent, model->numverts, varray_vertex, aliasvertnorm, varray_color, colorscale * ifog, colorscale * ifog, colorscale * ifog, false);
 333                 }
 334                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 335                 c_alias_polys += model->numtris;
 336                 blendfunc1 = GL_SRC_ALPHA;
 337                 blendfunc2 = GL_ONE;
 338         }
 339
 340         if (colormapped)
 341         {
 342                 if (skinframe->pants)
 343                 {
 344                         tex = R_GetTexture(skinframe->pants);
 345                         if (tex)
 346                         {
 347                                 memset(&m, 0, sizeof(m));
 348                                 m.blendfunc1 = blendfunc1;
 349                                 m.blendfunc2 = blendfunc2;
 350                                 colorscale = r_colorscale;
 351                                 if (gl_combine.integer)
 352                                 {
 353                                         colorscale *= 0.25f;
 354                                         m.texrgbscale[0] = 4;
 355                                 }
 356                                 m.tex[0] = tex;
 357                                 R_Mesh_State(&m);
 358                                 R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 359                                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 360                                 if (pantsfullbright)
 361                                         GL_Color(pantscolor[0] * colorscale * ifog, pantscolor[1] * colorscale * ifog, pantscolor[2] * colorscale * ifog, ent->alpha);
 362                                 else
 363                                 {
 364                                         GL_UseColorArray();
 365                                         R_LightModel(ent, model->numverts, varray_vertex, aliasvertnorm, varray_color, pantscolor[0] * colorscale * ifog, pantscolor[1] * colorscale * ifog, pantscolor[2] * colorscale * ifog, false);
 366                                 }
 367                                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 368                                 c_alias_polys += model->numtris;
 369                                 blendfunc1 = GL_SRC_ALPHA;
 370                                 blendfunc2 = GL_ONE;
 371                         }
 372                 }
 373                 if (skinframe->shirt)
 374                 {
 375                         tex = R_GetTexture(skinframe->shirt);
 376                         if (tex)
 377                         {
 378                                 memset(&m, 0, sizeof(m));
 379                                 m.blendfunc1 = blendfunc1;
 380                                 m.blendfunc2 = blendfunc2;
 381                                 colorscale = r_colorscale;
 382                                 if (gl_combine.integer)
 383                                 {
 384                                         colorscale *= 0.25f;
 385                                         m.texrgbscale[0] = 4;
 386                                 }
 387                                 m.tex[0] = tex;
 388                                 R_Mesh_State(&m);
 389                                 R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 390                                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 391                                 if (shirtfullbright)
 392                                         GL_Color(shirtcolor[0] * colorscale * ifog, shirtcolor[1] * colorscale * ifog, shirtcolor[2] * colorscale * ifog, ent->alpha);
 393                                 else
 394                                 {
 395                                         GL_UseColorArray();
 396                                         R_LightModel(ent, model->numverts, varray_vertex, aliasvertnorm, varray_color, shirtcolor[0] * colorscale * ifog, shirtcolor[1] * colorscale * ifog, shirtcolor[2] * colorscale * ifog, false);
 397                                 }
 398                                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 399                                 c_alias_polys += model->numtris;
 400                                 blendfunc1 = GL_SRC_ALPHA;
 401                                 blendfunc2 = GL_ONE;
 402                         }
 403                 }
 404         }
 405         if (skinframe->glow)
 406         {
 407                 tex = R_GetTexture(skinframe->glow);
 408                 if (tex)
 409                 {
 410                         memset(&m, 0, sizeof(m));
 411                         m.blendfunc1 = blendfunc1;
 412                         m.blendfunc2 = blendfunc2;
 413                         m.tex[0] = tex;
 414                         R_Mesh_State(&m);
 415
 416                         blendfunc1 = GL_SRC_ALPHA;
 417                         blendfunc2 = GL_ONE;
 418                         c_alias_polys += model->numtris;
 419                         R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 420                         memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 421                         GL_Color(ifog * r_colorscale, ifog * r_colorscale, ifog * r_colorscale, ent->alpha);
 422                         R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 423                 }
 424         }
 425         if (fog)
 426         {
 427                 memset(&m, 0, sizeof(m));
 428                 m.blendfunc1 = GL_SRC_ALPHA;
 429                 m.blendfunc2 = GL_ONE;
 430                 m.tex[0] = R_GetTexture(skinframe->fog);
 431                 R_Mesh_State(&m);
 432
 433                 c_alias_polys += model->numtris;
 434                 R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 435                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 436                 GL_Color(fogcolor[0] * fog * r_colorscale, fogcolor[1] * fog * r_colorscale, fogcolor[2] * fog * r_colorscale, ent->alpha);
 437                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 438         }
 439 }
 440
 441 void R_DrawQ1Q2AliasModelShadowVolume(entity_render_t *ent, vec3_t relativelightorigin, float lightradius, int visiblevolume)
 442 {
 443         float projectdistance;
 444         projectdistance = lightradius + ent->model->radius - sqrt(DotProduct(relativelightorigin, relativelightorigin));
 445         if (projectdistance > 0.1)
 446         {
 447                 R_Mesh_ResizeCheck(ent->model->numverts * 2);
 448                 R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 449                 R_Shadow_Volume(ent->model->numverts, ent->model->numtris, varray_vertex, ent->model->mdlmd2data_indices, ent->model->mdlmd2data_triangleneighbors, relativelightorigin, lightradius, projectdistance, visiblevolume);
 450         }
 451 }
 452
 453 extern cvar_t r_shadows;
 454 void R_DrawQ1Q2AliasModelFakeShadow (entity_render_t *ent)
 455 {
 456         int i;
 457         rmeshstate_t m;
 458         model_t *model;
 459         float *v, planenormal[3], planedist, dist, projection[3], floororigin[3], surfnormal[3], lightdirection[3], v2[3];
 460
 461         /*
 462         if (r_shadows.integer > 1)
 463         {
 464                 float f, lightscale, lightcolor[3];
 465                 vec3_t temp;
 466                 mlight_t *sl;
 467                 rdlight_t *rd;
 468                 memset(&m, 0, sizeof(m));
 469                 m.blendfunc1 = GL_ONE;
 470                 m.blendfunc2 = GL_ONE;
 471                 R_Mesh_State(&m);
 472                 R_Mesh_Matrix(&ent->matrix);
 473                 for (i = 0, sl = cl.worldmodel->lights;i < cl.worldmodel->numlights;i++, sl++)
 474                 {
 475                         if (d_lightstylevalue[sl->style] > 0)
 476                         {
 477                                 VectorSubtract(ent->origin, sl->origin, temp);
 478                                 f = DotProduct(temp,temp);
 479                                 if (f < (ent->model->radius2 + sl->cullradius2))
 480                                 {
 481                                         model = ent->model;
 482                                         R_Mesh_ResizeCheck(model->numverts * 2);
 483                                         R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 484                                         Matrix4x4_Transform(&ent->inversematrix, sl->origin, temp);
 485                                         GL_Color(0.1 * r_colorscale, 0.025 * r_colorscale, 0.0125 * r_colorscale, 1);
 486                                         R_Shadow_Volume(model->numverts, model->numtris, varray_vertex, model->mdlmd2data_indices, model->mdlmd2data_triangleneighbors, temp, sl->cullradius + model->radius - sqrt(f), true);
 487                                         GL_UseColorArray();
 488                                         lightscale = d_lightstylevalue[sl->style] * (1.0f / 65536.0f);
 489                                         VectorScale(sl->light, lightscale, lightcolor);
 490                                         R_Shadow_VertexLight(model->numverts, varray_vertex, aliasvertnorm, temp, sl->cullradius2, sl->distbias, sl->subtract, lightcolor);
 491                                         R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 492                                 }
 493                         }
 494                 }
 495                 for (i = 0, rd = r_dlight;i < r_numdlights;i++, rd++)
 496                 {
 497                         if (ent != rd->ent)
 498                         {
 499                                 VectorSubtract(ent->origin, rd->origin, temp);
 500                                 f = DotProduct(temp,temp);
 501                                 if (f < (ent->model->radius2 + rd->cullradius2))
 502                                 {
 503                                         model = ent->model;
 504                                         R_Mesh_ResizeCheck(model->numverts * 2);
 505                                         R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 506                                         Matrix4x4_Transform(&ent->inversematrix, rd->origin, temp);
 507                                         GL_Color(0.1 * r_colorscale, 0.025 * r_colorscale, 0.0125 * r_colorscale, 1);
 508                                         R_Shadow_Volume(model->numverts, model->numtris, varray_vertex, model->mdlmd2data_indices, model->mdlmd2data_triangleneighbors, temp, rd->cullradius + model->radius - sqrt(f), true);
 509                                         GL_UseColorArray();
 510                                         R_Shadow_VertexLight(model->numverts, varray_vertex, aliasvertnorm, temp, rd->cullradius2, LIGHTOFFSET, rd->subtract, rd->light);
 511                                         R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 512                                 }
 513                         }
 514                 }
 515                 return;
 516         }
 517         */
 518
 519         lightdirection[0] = 0.5;
 520         lightdirection[1] = 0.2;
 521         lightdirection[2] = -1;
 522         VectorNormalizeFast(lightdirection);
 523
 524         VectorMA(ent->origin, 65536.0f, lightdirection, v2);
 525         if (CL_TraceLine(ent->origin, v2, floororigin, surfnormal, 0, false, NULL) == 1)
 526                 return;
 527
 528         R_Mesh_Matrix(&ent->matrix);
 529
 530         model = ent->model;
 531         R_Mesh_ResizeCheck(model->numverts);
 532
 533         memset(&m, 0, sizeof(m));
 534         m.blendfunc1 = GL_SRC_ALPHA;
 535         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 536         R_Mesh_State(&m);
 537
 538         c_alias_polys += model->numtris;
 539         R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 540
 541         // put a light direction in the entity's coordinate space
 542         Matrix4x4_Transform3x3(&ent->inversematrix, lightdirection, projection);
 543         VectorNormalizeFast(projection);
 544
 545         // put the plane's normal in the entity's coordinate space
 546         Matrix4x4_Transform3x3(&ent->inversematrix, surfnormal, planenormal);
 547         VectorNormalizeFast(planenormal);
 548
 549         // put the plane's distance in the entity's coordinate space
 550         VectorSubtract(floororigin, ent->origin, floororigin);
 551         planedist = DotProduct(floororigin, surfnormal) + 2;
 552
 553         dist = -1.0f / DotProduct(projection, planenormal);
 554         VectorScale(projection, dist, projection);
 555         for (i = 0, v = varray_vertex;i < model->numverts;i++, v += 4)
 556         {
 557                 dist = DotProduct(v, planenormal) - planedist;
 558                 if (dist > 0)
 559                 //if (i & 1)
 560                         VectorMA(v, dist, projection, v);
 561         }
 562         GL_Color(0, 0, 0, 0.5);
 563         R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 564 }
 565
 566 int ZymoticLerpBones(int count, const zymbonematrix *bonebase, const frameblend_t *blend, const zymbone_t *bone)
 567 {
 568         int i;
 569         float lerp1, lerp2, lerp3, lerp4;
 570         zymbonematrix *out, rootmatrix, m;
 571         const zymbonematrix *bone1, *bone2, *bone3, *bone4;
 572
 573         rootmatrix.m[0][0] = 1;
 574         rootmatrix.m[0][1] = 0;
 575         rootmatrix.m[0][2] = 0;
 576         rootmatrix.m[0][3] = 0;
 577         rootmatrix.m[1][0] = 0;
 578         rootmatrix.m[1][1] = 1;
 579         rootmatrix.m[1][2] = 0;
 580         rootmatrix.m[1][3] = 0;
 581         rootmatrix.m[2][0] = 0;
 582         rootmatrix.m[2][1] = 0;
 583         rootmatrix.m[2][2] = 1;
 584         rootmatrix.m[2][3] = 0;
 585
 586         bone1 = bonebase + blend[0].frame * count;
 587         lerp1 = blend[0].lerp;
 588         if (blend[1].lerp)
 589         {
 590                 bone2 = bonebase + blend[1].frame * count;
 591                 lerp2 = blend[1].lerp;
 592                 if (blend[2].lerp)
 593                 {
 594                         bone3 = bonebase + blend[2].frame * count;
 595                         lerp3 = blend[2].lerp;
 596                         if (blend[3].lerp)
 597                         {
 598                                 // 4 poses
 599                                 bone4 = bonebase + blend[3].frame * count;
 600                                 lerp4 = blend[3].lerp;
 601                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 602                                 {
 603                                         // interpolate matrices
 604                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 605                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 606                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 607                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 608                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 609                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 610                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 611                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 612                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 613                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 614                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 615                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 616                                         if (bone->parent >= 0)
 617                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 618                                         else
 619                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 620                                         bone1++;
 621                                         bone2++;
 622                                         bone3++;
 623                                         bone4++;
 624                                         bone++;
 625                                 }
 626                         }
 627                         else
 628                         {
 629                                 // 3 poses
 630                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 631                                 {
 632                                         // interpolate matrices
 633                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 634                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 635                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 636                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 637                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 638                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 639                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 640                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 641                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 642                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 643                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 644                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 645                                         if (bone->parent >= 0)
 646                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 647                                         else
 648                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 649                                         bone1++;
 650                                         bone2++;
 651                                         bone3++;
 652                                         bone++;
 653                                 }
 654                         }
 655                 }
 656                 else
 657                 {
 658                         // 2 poses
 659                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 660                         {
 661                                 // interpolate matrices
 662                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 663                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 664                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 665                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 666                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 667                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 668                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 669                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 670                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 671                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 672                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 673                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 674                                 if (bone->parent >= 0)
 675                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 676                                 else
 677                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 678                                 bone1++;
 679                                 bone2++;
 680                                 bone++;
 681                         }
 682                 }
 683         }
 684         else
 685         {
 686                 // 1 pose
 687                 if (lerp1 != 1)
 688                 {
 689                         // lerp != 1.0
 690                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 691                         {
 692                                 // interpolate matrices
 693                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 694                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 695                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 696                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 697                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 698                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 699                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 700                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 701                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 702                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 703                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 704                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 705                                 if (bone->parent >= 0)
 706                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 707                                 else
 708                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 709                                 bone1++;
 710                                 bone++;
 711                         }
 712                 }
 713                 else
 714                 {
 715                         // lerp == 1.0
 716                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 717                         {
 718                                 if (bone->parent >= 0)
 719                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &bone1->m[0][0], &out->m[0][0]);
 720                                 else
 721                                         R_ConcatTransforms(&rootmatrix.m[0][0], &bone1->m[0][0], &out->m[0][0]);
 722                                 bone1++;
 723                                 bone++;
 724                         }
 725                 }
 726         }
 727         return true;
 728 }
 729
 730 void ZymoticTransformVerts(int vertcount, float *vertex, int *bonecounts, zymvertex_t *vert)
 731 {
 732         int c;
 733         float *out = vertex;
 734         zymbonematrix *matrix;
 735         while(vertcount--)
 736         {
 737                 c = *bonecounts++;
 738                 // FIXME: validate bonecounts at load time (must be >= 1)
 739                 // FIXME: need 4th component in origin, for how much of the translate to blend in
 740                 if (c == 1)
 741                 {
 742                         matrix = &zymbonepose[vert->bonenum];
 743                         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];
 744                         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];
 745                         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];
 746                         vert++;
 747                 }
 748                 else
 749                 {
 750                         VectorClear(out);
 751                         while(c--)
 752                         {
 753                                 matrix = &zymbonepose[vert->bonenum];
 754                                 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];
 755                                 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];
 756                                 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];
 757                                 vert++;
 758                         }
 759                 }
 760                 out += 4;
 761         }
 762 }
 763
 764 void ZymoticCalcNormals(int vertcount, float *vertex, float *normals, int shadercount, int *renderlist)
 765 {
 766         int a, b, c, d;
 767         float *out, v1[3], v2[3], normal[3], s;
 768         int *u;
 769         // clear normals
 770         memset(normals, 0, sizeof(float) * vertcount * 3);
 771         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 772         // parse render list and accumulate surface normals
 773         while(shadercount--)
 774         {
 775                 d = *renderlist++;
 776                 while (d--)
 777                 {
 778                         a = renderlist[0]*4;
 779                         b = renderlist[1]*4;
 780                         c = renderlist[2]*4;
 781                         v1[0] = vertex[a+0] - vertex[b+0];
 782                         v1[1] = vertex[a+1] - vertex[b+1];
 783                         v1[2] = vertex[a+2] - vertex[b+2];
 784                         v2[0] = vertex[c+0] - vertex[b+0];
 785                         v2[1] = vertex[c+1] - vertex[b+1];
 786                         v2[2] = vertex[c+2] - vertex[b+2];
 787                         CrossProduct(v1, v2, normal);
 788                         VectorNormalizeFast(normal);
 789                         // add surface normal to vertices
 790                         a = renderlist[0] * 3;
 791                         normals[a+0] += normal[0];
 792                         normals[a+1] += normal[1];
 793                         normals[a+2] += normal[2];
 794                         aliasvertusage[renderlist[0]]++;
 795                         a = renderlist[1] * 3;
 796                         normals[a+0] += normal[0];
 797                         normals[a+1] += normal[1];
 798                         normals[a+2] += normal[2];
 799                         aliasvertusage[renderlist[1]]++;
 800                         a = renderlist[2] * 3;
 801                         normals[a+0] += normal[0];
 802                         normals[a+1] += normal[1];
 803                         normals[a+2] += normal[2];
 804                         aliasvertusage[renderlist[2]]++;
 805                         renderlist += 3;
 806                 }
 807         }
 808         // FIXME: precalc this
 809         // average surface normals
 810         out = normals;
 811         u = aliasvertusage;
 812         while(vertcount--)
 813         {
 814                 if (*u > 1)
 815                 {
 816                         s = ixtable[*u];
 817                         out[0] *= s;
 818                         out[1] *= s;
 819                         out[2] *= s;
 820                 }
 821                 u++;
 822                 out += 3;
 823         }
 824 }
 825
 826 void R_DrawZymoticModelMeshCallback (const void *calldata1, int calldata2)
 827 {
 828         float fog, ifog, colorscale;
 829         vec3_t diff;
 830         int i, *renderlist, *elements;
 831         zymtype1header_t *m;
 832         rtexture_t *texture;
 833         rmeshstate_t mstate;
 834         const entity_render_t *ent = calldata1;
 835         int shadernum = calldata2;
 836         int numverts, numtriangles;
 837
 838         R_Mesh_Matrix(&ent->matrix);
 839
 840         // find the vertex index list and texture
 841         m = ent->model->zymdata_header;
 842         renderlist = (int *)(m->lump_render.start + (int) m);
 843         for (i = 0;i < shadernum;i++)
 844                 renderlist += renderlist[0] * 3 + 1;
 845         texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[shadernum];
 846
 847         numverts = m->numverts;
 848         numtriangles = *renderlist++;
 849         elements = renderlist;
 850         R_Mesh_ResizeCheck(numverts);
 851
 852         fog = 0;
 853         if (fogenabled)
 854         {
 855                 VectorSubtract(ent->origin, r_origin, diff);
 856                 fog = DotProduct(diff,diff);
 857                 if (fog < 0.01f)
 858                         fog = 0.01f;
 859                 fog = exp(fogdensity/fog);
 860                 if (fog > 1)
 861                         fog = 1;
 862                 if (fog < 0.01f)
 863                         fog = 0;
 864                 // fog method: darken, additive fog
 865                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 866                 // 2. render fog as additive
 867         }
 868         ifog = 1 - fog;
 869
 870         memset(&mstate, 0, sizeof(mstate));
 871         if (ent->effects & EF_ADDITIVE)
 872         {
 873                 mstate.blendfunc1 = GL_SRC_ALPHA;
 874                 mstate.blendfunc2 = GL_ONE;
 875         }
 876         else if (ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 877         {
 878                 mstate.blendfunc1 = GL_SRC_ALPHA;
 879                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 880         }
 881         else
 882         {
 883                 mstate.blendfunc1 = GL_ONE;
 884                 mstate.blendfunc2 = GL_ZERO;
 885         }
 886         colorscale = r_colorscale;
 887         if (gl_combine.integer)
 888         {
 889                 mstate.texrgbscale[0] = 4;
 890                 colorscale *= 0.25f;
 891         }
 892         mstate.tex[0] = R_GetTexture(texture);
 893         R_Mesh_State(&mstate);
 894         ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), ent->frameblend, (zymbone_t *)(m->lump_bones.start + (int) m));
 895         ZymoticTransformVerts(numverts, varray_vertex, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
 896         ZymoticCalcNormals(numverts, varray_vertex, aliasvertnorm, m->numshaders, (int *)(m->lump_render.start + (int) m));
 897         memcpy(varray_texcoord[0], (float *)(m->lump_texcoords.start + (int) m), numverts * sizeof(float[2]));
 898         GL_UseColorArray();
 899         R_LightModel(ent, numverts, varray_vertex, aliasvertnorm, varray_color, ifog * colorscale, ifog * colorscale, ifog * colorscale, false);
 900         R_Mesh_Draw(numverts, numtriangles, elements);
 901         c_alias_polys += numtriangles;
 902
 903         if (fog)
 904         {
 905                 memset(&mstate, 0, sizeof(mstate));
 906                 mstate.blendfunc1 = GL_SRC_ALPHA;
 907                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 908                 // FIXME: need alpha mask for fogging...
 909                 //mstate.tex[0] = R_GetTexture(texture);
 910                 R_Mesh_State(&mstate);
 911                 GL_Color(fogcolor[0] * r_colorscale, fogcolor[1] * r_colorscale, fogcolor[2] * r_colorscale, ent->alpha * fog);
 912                 R_Mesh_Draw(numverts, numtriangles, elements);
 913                 c_alias_polys += numtriangles;
 914         }
 915 }
 916
 917 void R_DrawZymoticModel (entity_render_t *ent)
 918 {
 919         int i;
 920         zymtype1header_t *m;
 921         rtexture_t *texture;
 922
 923         if (ent->alpha < (1.0f / 64.0f))
 924                 return; // basically completely transparent
 925
 926         c_models++;
 927
 928         m = ent->model->zymdata_header;
 929         for (i = 0;i < m->numshaders;i++)
 930         {
 931                 texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[i];
 932                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 933                         R_MeshQueue_AddTransparent(ent->origin, R_DrawZymoticModelMeshCallback, ent, i);
 934                 else
 935                         R_DrawZymoticModelMeshCallback(ent, i);
 936         }
 937 }
 938
 939 void R_DrawQ1Q2AliasModel(entity_render_t *ent)
 940 {
 941         if (ent->alpha < (1.0f / 64.0f))
 942                 return; // basically completely transparent
 943
 944         c_models++;
 945
 946         if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_FetchSkinFrame(ent)->fog != NULL)
 947                 R_MeshQueue_AddTransparent(ent->origin, R_DrawQ1Q2AliasModelCallback, ent, 0);
 948         else
 949                 R_DrawQ1Q2AliasModelCallback(ent, 0);
 950 }