gl_models.c

   1
   2 #include "quakedef.h"
   3 #include "cl_collision.h"
   4 #include "r_shadow.h"
   5
   6 cvar_t r_quickmodels = {0, "r_quickmodels", "1"};
   7
   8 typedef struct
   9 {
  10         float m[3][4];
  11 } zymbonematrix;
  12
  13 // LordHavoc: vertex arrays
  14
  15 float *aliasvertbuf;
  16 float *aliasvertcolorbuf;
  17 float *aliasvert; // this may point at aliasvertbuf or at vertex arrays in the mesh backend
  18 float *aliasvertcolor; // this may point at aliasvertcolorbuf or at vertex arrays in the mesh backend
  19
  20 float *aliasvertcolor2;
  21 float *aliasvertnorm;
  22 int *aliasvertusage;
  23 zymbonematrix *zymbonepose;
  24
  25 mempool_t *gl_models_mempool;
  26
  27 void gl_models_start(void)
  28 {
  29         // allocate vertex processing arrays
  30         gl_models_mempool = Mem_AllocPool("GL_Models");
  31         aliasvert = aliasvertbuf = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][4]));
  32         aliasvertcolor = aliasvertcolorbuf = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][4]));
  33         aliasvertnorm = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][3]));
  34         aliasvertcolor2 = Mem_Alloc(gl_models_mempool, sizeof(float[MD2MAX_VERTS][4])); // used temporarily for tinted coloring
  35         zymbonepose = Mem_Alloc(gl_models_mempool, sizeof(zymbonematrix[256]));
  36         aliasvertusage = Mem_Alloc(gl_models_mempool, sizeof(int[MD2MAX_VERTS]));
  37 }
  38
  39 void gl_models_shutdown(void)
  40 {
  41         Mem_FreePool(&gl_models_mempool);
  42 }
  43
  44 void gl_models_newmap(void)
  45 {
  46 }
  47
  48 void GL_Models_Init(void)
  49 {
  50         Cvar_RegisterVariable(&r_quickmodels);
  51
  52         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
  53 }
  54
  55 /*
  56 void R_AliasTransformVerts(int vertcount)
  57 {
  58         vec3_t point;
  59         float *av;
  60         av = aliasvert;
  61         while (vertcount >= 4)
  62         {
  63                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  64                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  65                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  66                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  67                 vertcount -= 4;
  68         }
  69         while(vertcount > 0)
  70         {
  71                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  72                 vertcount--;
  73         }
  74 }
  75 */
  76
  77 void R_AliasLerpVerts(int vertcount, float *vertices, float *normals,
  78                 float lerp1, const trivertx_t *verts1, const vec3_t fscale1, const vec3_t translate1,
  79                 float lerp2, const trivertx_t *verts2, const vec3_t fscale2, const vec3_t translate2,
  80                 float lerp3, const trivertx_t *verts3, const vec3_t fscale3, const vec3_t translate3,
  81                 float lerp4, const trivertx_t *verts4, const vec3_t fscale4, const vec3_t translate4)
  82 {
  83         int i;
  84         vec3_t scale1, scale2, scale3, scale4, translate;
  85         const float *n1, *n2, *n3, *n4;
  86         float *av, *avn;
  87         av = vertices;
  88         avn = normals;
  89         VectorScale(fscale1, lerp1, scale1);
  90         if (lerp2)
  91         {
  92                 VectorScale(fscale2, lerp2, scale2);
  93                 if (lerp3)
  94                 {
  95                         VectorScale(fscale3, lerp3, scale3);
  96                         if (lerp4)
  97                         {
  98                                 VectorScale(fscale4, lerp4, scale4);
  99                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
 100                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
 101                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
 102                                 // generate vertices
 103                                 for (i = 0;i < vertcount;i++)
 104                                 {
 105                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
 106                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
 107                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
 108                                         n1 = m_bytenormals[verts1->lightnormalindex];
 109                                         n2 = m_bytenormals[verts2->lightnormalindex];
 110                                         n3 = m_bytenormals[verts3->lightnormalindex];
 111                                         n4 = m_bytenormals[verts4->lightnormalindex];
 112                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
 113                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
 114                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
 115                                         av += 4;
 116                                         avn += 3;
 117                                         verts1++;verts2++;verts3++;verts4++;
 118                                 }
 119                         }
 120                         else
 121                         {
 122                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
 123                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
 124                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
 125                                 // generate vertices
 126                                 for (i = 0;i < vertcount;i++)
 127                                 {
 128                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
 129                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
 130                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
 131                                         n1 = m_bytenormals[verts1->lightnormalindex];
 132                                         n2 = m_bytenormals[verts2->lightnormalindex];
 133                                         n3 = m_bytenormals[verts3->lightnormalindex];
 134                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
 135                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
 136                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
 137                                         av += 4;
 138                                         avn += 3;
 139                                         verts1++;verts2++;verts3++;
 140                                 }
 141                         }
 142                 }
 143                 else
 144                 {
 145                         translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
 146                         translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
 147                         translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
 148                         // generate vertices
 149                         for (i = 0;i < vertcount;i++)
 150                         {
 151                                 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
 152                                 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
 153                                 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
 154                                 n1 = m_bytenormals[verts1->lightnormalindex];
 155                                 n2 = m_bytenormals[verts2->lightnormalindex];
 156                                 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
 157                                 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
 158                                 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
 159                                 av += 4;
 160                                 avn += 3;
 161                                 verts1++;verts2++;
 162                         }
 163                 }
 164         }
 165         else
 166         {
 167                 translate[0] = translate1[0] * lerp1;
 168                 translate[1] = translate1[1] * lerp1;
 169                 translate[2] = translate1[2] * lerp1;
 170                 // generate vertices
 171                 if (lerp1 != 1)
 172                 {
 173                         // general but almost never used case
 174                         for (i = 0;i < vertcount;i++)
 175                         {
 176                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 177                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 178                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 179                                 n1 = m_bytenormals[verts1->lightnormalindex];
 180                                 avn[0] = n1[0] * lerp1;
 181                                 avn[1] = n1[1] * lerp1;
 182                                 avn[2] = n1[2] * lerp1;
 183                                 av += 4;
 184                                 avn += 3;
 185                                 verts1++;
 186                         }
 187                 }
 188                 else
 189                 {
 190                         // fast normal case
 191                         for (i = 0;i < vertcount;i++)
 192                         {
 193                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 194                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 195                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 196                                 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
 197                                 av += 4;
 198                                 avn += 3;
 199                                 verts1++;
 200                         }
 201                 }
 202         }
 203 }
 204
 205 skinframe_t *R_FetchSkinFrame(const entity_render_t *ent)
 206 {
 207         model_t *model = ent->model;
 208         unsigned int s = (unsigned int) ent->skinnum;
 209         if (s >= model->numskins)
 210                 s = 0;
 211         if (model->skinscenes[s].framecount > 1)
 212                 return &model->skinframes[model->skinscenes[s].firstframe + (int) (cl.time * 10) % model->skinscenes[s].framecount];
 213         else
 214                 return &model->skinframes[model->skinscenes[s].firstframe];
 215 }
 216
 217 void R_LerpMDLMD2Vertices(const entity_render_t *ent, float *vertices, float *normals)
 218 {
 219         const md2frame_t *frame1, *frame2, *frame3, *frame4;
 220         const trivertx_t *frame1verts, *frame2verts, *frame3verts, *frame4verts;
 221         const model_t *model = ent->model;
 222
 223         frame1 = &model->mdlmd2data_frames[ent->frameblend[0].frame];
 224         frame2 = &model->mdlmd2data_frames[ent->frameblend[1].frame];
 225         frame3 = &model->mdlmd2data_frames[ent->frameblend[2].frame];
 226         frame4 = &model->mdlmd2data_frames[ent->frameblend[3].frame];
 227         frame1verts = &model->mdlmd2data_pose[ent->frameblend[0].frame * model->numverts];
 228         frame2verts = &model->mdlmd2data_pose[ent->frameblend[1].frame * model->numverts];
 229         frame3verts = &model->mdlmd2data_pose[ent->frameblend[2].frame * model->numverts];
 230         frame4verts = &model->mdlmd2data_pose[ent->frameblend[3].frame * model->numverts];
 231         R_AliasLerpVerts(model->numverts, vertices, normals,
 232                 ent->frameblend[0].lerp, frame1verts, frame1->scale, frame1->translate,
 233                 ent->frameblend[1].lerp, frame2verts, frame2->scale, frame2->translate,
 234                 ent->frameblend[2].lerp, frame3verts, frame3->scale, frame3->translate,
 235                 ent->frameblend[3].lerp, frame4verts, frame4->scale, frame4->translate);
 236 }
 237
 238 void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
 239 {
 240         int i, c, pantsfullbright, shirtfullbright, colormapped, tex;
 241         float pantscolor[3], shirtcolor[3];
 242         float fog, colorscale;
 243         vec3_t diff;
 244         qbyte *bcolor;
 245         rmeshstate_t m;
 246         model_t *model;
 247         skinframe_t *skinframe;
 248         const entity_render_t *ent = calldata1;
 249         int blendfunc1, blendfunc2;
 250
 251 //      softwaretransformforentity(ent);
 252         R_Mesh_Matrix(&ent->matrix);
 253
 254         fog = 0;
 255         if (fogenabled)
 256         {
 257                 VectorSubtract(ent->origin, r_origin, diff);
 258                 fog = DotProduct(diff,diff);
 259                 if (fog < 0.01f)
 260                         fog = 0.01f;
 261                 fog = exp(fogdensity/fog);
 262                 if (fog > 1)
 263                         fog = 1;
 264                 if (fog < 0.01f)
 265                         fog = 0;
 266                 // fog method: darken, additive fog
 267                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 268                 // 2. render fog as additive
 269         }
 270
 271         model = ent->model;
 272         R_Mesh_ResizeCheck(model->numverts);
 273
 274         skinframe = R_FetchSkinFrame(ent);
 275
 276         if (ent->effects & EF_ADDITIVE)
 277         {
 278                 blendfunc1 = GL_SRC_ALPHA;
 279                 blendfunc2 = GL_ONE;
 280         }
 281         else if (ent->alpha != 1.0 || skinframe->fog != NULL)
 282         {
 283                 blendfunc1 = GL_SRC_ALPHA;
 284                 blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 285         }
 286         else
 287         {
 288                 blendfunc1 = GL_ONE;
 289                 blendfunc2 = GL_ZERO;
 290         }
 291
 292         colorscale = r_colorscale;
 293         if (gl_combine.integer)
 294                 colorscale *= 0.25f;
 295
 296         if (!skinframe->base && !skinframe->pants && !skinframe->shirt && !skinframe->glow)
 297         {
 298                 // untextured
 299                 memset(&m, 0, sizeof(m));
 300                 m.blendfunc1 = blendfunc1;
 301                 m.blendfunc2 = blendfunc2;
 302                 if (gl_combine.integer)
 303                         m.texrgbscale[0] = 4;
 304                 m.tex[0] = R_GetTexture(r_notexture);
 305                 R_Mesh_State(&m);
 306
 307                 c_alias_polys += model->numtris;
 308                 for (i = 0;i < model->numverts * 2;i++)
 309                         varray_texcoord[0][i] = model->mdlmd2data_texcoords[i] * 8.0f;
 310                 aliasvert = varray_vertex;
 311                 aliasvertcolor = varray_color;
 312                 R_LerpMDLMD2Vertices(ent, aliasvert, aliasvertnorm);
 313                 R_LightModel(ent, model->numverts, colorscale, colorscale, colorscale, false);
 314                 aliasvert = aliasvertbuf;
 315                 aliasvertcolor = aliasvertcolorbuf;
 316                 GL_UseColorArray();
 317                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 318                 return;
 319         }
 320
 321
 322         colormapped = !skinframe->merged || (ent->colormap >= 0 && skinframe->base && (skinframe->pants || skinframe->shirt));
 323         if (!colormapped && !fog && !skinframe->glow && !skinframe->fog)
 324         {
 325                 // fastpath for the normal situation (one texture)
 326                 memset(&m, 0, sizeof(m));
 327                 m.blendfunc1 = blendfunc1;
 328                 m.blendfunc2 = blendfunc2;
 329                 if (gl_combine.integer)
 330                         m.texrgbscale[0] = 4;
 331                 m.tex[0] = R_GetTexture(skinframe->merged);
 332                 R_Mesh_State(&m);
 333
 334                 c_alias_polys += model->numtris;
 335                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 336                 aliasvert = varray_vertex;
 337                 aliasvertcolor = varray_color;
 338                 R_LerpMDLMD2Vertices(ent, aliasvert, aliasvertnorm);
 339                 R_LightModel(ent, model->numverts, colorscale, colorscale, colorscale, false);
 340                 aliasvert = aliasvertbuf;
 341                 aliasvertcolor = aliasvertcolorbuf;
 342                 GL_UseColorArray();
 343                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 344                 return;
 345         }
 346
 347         R_LerpMDLMD2Vertices(ent, aliasvert, aliasvertnorm);
 348         R_LightModel(ent, model->numverts, colorscale * (1 - fog), colorscale * (1 - fog), colorscale * (1 - fog), false);
 349
 350         if (colormapped)
 351         {
 352                 // 128-224 are backwards ranges
 353                 c = (ent->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12;
 354                 bcolor = (qbyte *) (&d_8to24table[c]);
 355                 pantsfullbright = c >= 224;
 356                 VectorScale(bcolor, (1.0f / 255.0f), pantscolor);
 357                 c = (ent->colormap & 0xF0);c += (c >= 128 && c < 224) ? 4 : 12;
 358                 bcolor = (qbyte *) (&d_8to24table[c]);
 359                 shirtfullbright = c >= 224;
 360                 VectorScale(bcolor, (1.0f / 255.0f), shirtcolor);
 361         }
 362         else
 363         {
 364                 pantscolor[0] = pantscolor[1] = pantscolor[2] = shirtcolor[0] = shirtcolor[1] = shirtcolor[2] = 1;
 365                 pantsfullbright = shirtfullbright = false;
 366         }
 367
 368         tex = colormapped ? R_GetTexture(skinframe->base) : R_GetTexture(skinframe->merged);
 369         if (tex)
 370         {
 371                 memset(&m, 0, sizeof(m));
 372                 m.blendfunc1 = blendfunc1;
 373                 m.blendfunc2 = blendfunc2;
 374                 if (gl_combine.integer)
 375                         m.texrgbscale[0] = 4;
 376                 m.tex[0] = tex;
 377                 R_Mesh_State(&m);
 378
 379                 blendfunc1 = GL_SRC_ALPHA;
 380                 blendfunc2 = GL_ONE;
 381                 c_alias_polys += model->numtris;
 382                 R_ModulateColors(aliasvertcolor, varray_color, model->numverts, colorscale, colorscale, colorscale);
 383                 memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
 384                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 385                 GL_UseColorArray();
 386                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 387         }
 388
 389         if (colormapped)
 390         {
 391                 if (skinframe->pants)
 392                 {
 393                         tex = R_GetTexture(skinframe->pants);
 394                         if (tex)
 395                         {
 396                                 memset(&m, 0, sizeof(m));
 397                                 m.blendfunc1 = blendfunc1;
 398                                 m.blendfunc2 = blendfunc2;
 399                                 if (gl_combine.integer)
 400                                         m.texrgbscale[0] = 4;
 401                                 m.tex[0] = tex;
 402                                 R_Mesh_State(&m);
 403
 404                                 blendfunc1 = GL_SRC_ALPHA;
 405                                 blendfunc2 = GL_ONE;
 406                                 c_alias_polys += model->numtris;
 407                                 if (pantsfullbright)
 408                                         GL_Color(pantscolor[0] * colorscale, pantscolor[1] * colorscale, pantscolor[2] * colorscale, ent->alpha);
 409                                 else
 410                                 {
 411                                         GL_UseColorArray();
 412                                         R_ModulateColors(aliasvertcolor, varray_color, model->numverts, pantscolor[0] * colorscale, pantscolor[1] * colorscale, pantscolor[2] * colorscale);
 413                                 }
 414                                 memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
 415                                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 416                                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 417                         }
 418                 }
 419                 if (skinframe->shirt)
 420                 {
 421                         tex = R_GetTexture(skinframe->shirt);
 422                         if (tex)
 423                         {
 424                                 memset(&m, 0, sizeof(m));
 425                                 m.blendfunc1 = blendfunc1;
 426                                 m.blendfunc2 = blendfunc2;
 427                                 if (gl_combine.integer)
 428                                         m.texrgbscale[0] = 4;
 429                                 m.tex[0] = tex;
 430                                 R_Mesh_State(&m);
 431
 432                                 blendfunc1 = GL_SRC_ALPHA;
 433                                 blendfunc2 = GL_ONE;
 434                                 c_alias_polys += model->numtris;
 435                                 if (shirtfullbright)
 436                                         GL_Color(shirtcolor[0] * colorscale, shirtcolor[1] * colorscale, shirtcolor[2] * colorscale, ent->alpha);
 437                                 else
 438                                 {
 439                                         GL_UseColorArray();
 440                                         R_ModulateColors(aliasvertcolor, varray_color, model->numverts, shirtcolor[0] * colorscale, shirtcolor[1] * colorscale, shirtcolor[2] * colorscale);
 441                                 }
 442                                 memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
 443                                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 444                                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 445                         }
 446                 }
 447         }
 448         if (skinframe->glow)
 449         {
 450                 tex = R_GetTexture(skinframe->glow);
 451                 if (tex)
 452                 {
 453                         memset(&m, 0, sizeof(m));
 454                         m.blendfunc1 = blendfunc1;
 455                         m.blendfunc2 = blendfunc2;
 456                         m.tex[0] = tex;
 457                         R_Mesh_State(&m);
 458
 459                         blendfunc1 = GL_SRC_ALPHA;
 460                         blendfunc2 = GL_ONE;
 461                         c_alias_polys += model->numtris;
 462                         memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
 463                         memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 464                         GL_Color((1 - fog) * r_colorscale, (1 - fog) * r_colorscale, (1 - fog) * r_colorscale, ent->alpha);
 465                         R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 466                 }
 467         }
 468         if (fog)
 469         {
 470                 memset(&m, 0, sizeof(m));
 471                 m.blendfunc1 = GL_SRC_ALPHA;
 472                 m.blendfunc2 = GL_ONE;
 473                 m.tex[0] = R_GetTexture(skinframe->fog);
 474                 R_Mesh_State(&m);
 475
 476                 c_alias_polys += model->numtris;
 477                 memcpy(varray_vertex, aliasvert, model->numverts * sizeof(float[4]));
 478                 memcpy(varray_texcoord[0], model->mdlmd2data_texcoords, model->numverts * sizeof(float[2]));
 479                 GL_Color(fogcolor[0] * fog * r_colorscale, fogcolor[1] * fog * r_colorscale, fogcolor[2] * fog * r_colorscale, ent->alpha);
 480                 R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 481         }
 482 }
 483
 484 extern cvar_t r_shadows;
 485 void R_DrawQ1Q2AliasModelFakeShadow (entity_render_t *ent)
 486 {
 487         int i;
 488         rmeshstate_t m;
 489         model_t *model;
 490         float *v, planenormal[3], planedist, dist, projection[3], floororigin[3], surfnormal[3], lightdirection[3], v2[3];
 491
 492         if (r_shadows.integer > 1)
 493         {
 494                 float f;
 495                 vec3_t temp;
 496                 for (i = 0;i < r_numdlights;i++)
 497                 {
 498                         if (ent != r_dlight[i].ent)
 499                         {
 500                                 VectorSubtract(ent->origin, r_dlight[i].origin, temp);
 501                                 f = DotProduct(temp,temp);
 502                                 if (f < (ent->model->radius2 + r_dlight[i].cullradius2))
 503                                 {
 504                                         model = ent->model;
 505                                         R_Mesh_ResizeCheck(model->numverts * 2);
 506                                         memset(&m, 0, sizeof(m));
 507                                         m.blendfunc1 = GL_ONE;
 508                                         m.blendfunc2 = GL_ONE;
 509                                         R_Mesh_State(&m);
 510                                         R_Mesh_Matrix(&ent->matrix);
 511                                         R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 512                                         GL_Color(0.1 * r_colorscale, 0.025 * r_colorscale, 0.0125 * r_colorscale, 1);
 513                                         Matrix4x4_Transform(&ent->inversematrix, r_dlight[i].origin, temp);
 514                                         R_ShadowVolume(model->numverts, model->numtris, model->mdlmd2data_indices, model->mdlmd2data_triangleneighbors, temp, r_dlight[i].cullradius + model->radius - sqrt(f), true);
 515                                 }
 516                         }
 517                 }
 518                 return;
 519         }
 520
 521         lightdirection[0] = 0.5;
 522         lightdirection[1] = 0.2;
 523         lightdirection[2] = -1;
 524         VectorNormalizeFast(lightdirection);
 525
 526         VectorMA(ent->origin, 65536.0f, lightdirection, v2);
 527         if (CL_TraceLine(ent->origin, v2, floororigin, surfnormal, 0, false, NULL) == 1)
 528                 return;
 529
 530         R_Mesh_Matrix(&ent->matrix);
 531
 532         model = ent->model;
 533         R_Mesh_ResizeCheck(model->numverts);
 534
 535         memset(&m, 0, sizeof(m));
 536         m.blendfunc1 = GL_SRC_ALPHA;
 537         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 538         R_Mesh_State(&m);
 539
 540         c_alias_polys += model->numtris;
 541         R_LerpMDLMD2Vertices(ent, varray_vertex, aliasvertnorm);
 542
 543         // put a light direction in the entity's coordinate space
 544         Matrix4x4_Transform3x3(&ent->inversematrix, lightdirection, projection);
 545         VectorNormalizeFast(projection);
 546
 547         // put the plane's normal in the entity's coordinate space
 548         Matrix4x4_Transform3x3(&ent->inversematrix, surfnormal, planenormal);
 549         VectorNormalizeFast(planenormal);
 550
 551         // put the plane's distance in the entity's coordinate space
 552         VectorSubtract(floororigin, ent->origin, floororigin);
 553         planedist = DotProduct(floororigin, surfnormal) + 2;
 554
 555         dist = -1.0f / DotProduct(projection, planenormal);
 556         VectorScale(projection, dist, projection);
 557         for (i = 0, v = varray_vertex;i < model->numverts;i++, v += 4)
 558         {
 559                 dist = DotProduct(v, planenormal) - planedist;
 560                 if (dist > 0)
 561                 //if (i & 1)
 562                         VectorMA(v, dist, projection, v);
 563         }
 564         GL_Color(0, 0, 0, 0.5);
 565         R_Mesh_Draw(model->numverts, model->numtris, model->mdlmd2data_indices);
 566 }
 567
 568 int ZymoticLerpBones(int count, const zymbonematrix *bonebase, const frameblend_t *blend, const zymbone_t *bone)
 569 {
 570         int i;
 571         float lerp1, lerp2, lerp3, lerp4;
 572         zymbonematrix *out, rootmatrix, m;
 573         const zymbonematrix *bone1, *bone2, *bone3, *bone4;
 574
 575         /*
 576         // LordHavoc: combine transform from zym coordinate space to quake coordinate space with model to world transform matrix
 577         rootmatrix.m[0][0] = softwaretransform_matrix[0][1];
 578         rootmatrix.m[0][1] = -softwaretransform_matrix[0][0];
 579         rootmatrix.m[0][2] = softwaretransform_matrix[0][2];
 580         rootmatrix.m[0][3] = softwaretransform_matrix[0][3];
 581         rootmatrix.m[1][0] = softwaretransform_matrix[1][1];
 582         rootmatrix.m[1][1] = -softwaretransform_matrix[1][0];
 583         rootmatrix.m[1][2] = softwaretransform_matrix[1][2];
 584         rootmatrix.m[1][3] = softwaretransform_matrix[1][3];
 585         rootmatrix.m[2][0] = softwaretransform_matrix[2][1];
 586         rootmatrix.m[2][1] = -softwaretransform_matrix[2][0];
 587         rootmatrix.m[2][2] = softwaretransform_matrix[2][2];
 588         rootmatrix.m[2][3] = softwaretransform_matrix[2][3];
 589         */
 590         rootmatrix.m[0][0] = 1;
 591         rootmatrix.m[0][1] = 0;
 592         rootmatrix.m[0][2] = 0;
 593         rootmatrix.m[0][3] = 0;
 594         rootmatrix.m[1][0] = 0;
 595         rootmatrix.m[1][1] = 1;
 596         rootmatrix.m[1][2] = 0;
 597         rootmatrix.m[1][3] = 0;
 598         rootmatrix.m[2][0] = 0;
 599         rootmatrix.m[2][1] = 0;
 600         rootmatrix.m[2][2] = 1;
 601         rootmatrix.m[2][3] = 0;
 602
 603         bone1 = bonebase + blend[0].frame * count;
 604         lerp1 = blend[0].lerp;
 605         if (blend[1].lerp)
 606         {
 607                 bone2 = bonebase + blend[1].frame * count;
 608                 lerp2 = blend[1].lerp;
 609                 if (blend[2].lerp)
 610                 {
 611                         bone3 = bonebase + blend[2].frame * count;
 612                         lerp3 = blend[2].lerp;
 613                         if (blend[3].lerp)
 614                         {
 615                                 // 4 poses
 616                                 bone4 = bonebase + blend[3].frame * count;
 617                                 lerp4 = blend[3].lerp;
 618                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 619                                 {
 620                                         // interpolate matrices
 621                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 622                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 623                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 624                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 625                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 626                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 627                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 628                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 629                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 630                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 631                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 632                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 633                                         if (bone->parent >= 0)
 634                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 635                                         else
 636                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 637                                         bone1++;
 638                                         bone2++;
 639                                         bone3++;
 640                                         bone4++;
 641                                         bone++;
 642                                 }
 643                         }
 644                         else
 645                         {
 646                                 // 3 poses
 647                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 648                                 {
 649                                         // interpolate matrices
 650                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 651                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 652                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 653                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 654                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 655                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 656                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 657                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 658                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 659                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 660                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 661                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 662                                         if (bone->parent >= 0)
 663                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 664                                         else
 665                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 666                                         bone1++;
 667                                         bone2++;
 668                                         bone3++;
 669                                         bone++;
 670                                 }
 671                         }
 672                 }
 673                 else
 674                 {
 675                         // 2 poses
 676                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 677                         {
 678                                 // interpolate matrices
 679                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 680                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 681                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 682                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 683                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 684                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 685                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 686                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 687                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 688                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 689                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 690                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 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                                 bone2++;
 697                                 bone++;
 698                         }
 699                 }
 700         }
 701         else
 702         {
 703                 // 1 pose
 704                 if (lerp1 != 1)
 705                 {
 706                         // lerp != 1.0
 707                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 708                         {
 709                                 // interpolate matrices
 710                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 711                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 712                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 713                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 714                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 715                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 716                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 717                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 718                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 719                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 720                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 721                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 722                                 if (bone->parent >= 0)
 723                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 724                                 else
 725                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 726                                 bone1++;
 727                                 bone++;
 728                         }
 729                 }
 730                 else
 731                 {
 732                         // lerp == 1.0
 733                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 734                         {
 735                                 if (bone->parent >= 0)
 736                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &bone1->m[0][0], &out->m[0][0]);
 737                                 else
 738                                         R_ConcatTransforms(&rootmatrix.m[0][0], &bone1->m[0][0], &out->m[0][0]);
 739                                 bone1++;
 740                                 bone++;
 741                         }
 742                 }
 743         }
 744         return true;
 745 }
 746
 747 void ZymoticTransformVerts(int vertcount, int *bonecounts, zymvertex_t *vert)
 748 {
 749         int c;
 750         float *out = aliasvert;
 751         zymbonematrix *matrix;
 752         while(vertcount--)
 753         {
 754                 c = *bonecounts++;
 755                 // FIXME: validate bonecounts at load time (must be >= 1)
 756                 // FIXME: need 4th component in origin, for how much of the translate to blend in
 757                 if (c == 1)
 758                 {
 759                         matrix = &zymbonepose[vert->bonenum];
 760                         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];
 761                         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];
 762                         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];
 763                         vert++;
 764                 }
 765                 else
 766                 {
 767                         VectorClear(out);
 768                         while(c--)
 769                         {
 770                                 matrix = &zymbonepose[vert->bonenum];
 771                                 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];
 772                                 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];
 773                                 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];
 774                                 vert++;
 775                         }
 776                 }
 777                 out += 4;
 778         }
 779 }
 780
 781 void ZymoticCalcNormals(int vertcount, int shadercount, int *renderlist)
 782 {
 783         int a, b, c, d;
 784         float *out, v1[3], v2[3], normal[3], s;
 785         int *u;
 786         // clear normals
 787         memset(aliasvertnorm, 0, sizeof(float) * vertcount * 3);
 788         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 789         // parse render list and accumulate surface normals
 790         while(shadercount--)
 791         {
 792                 d = *renderlist++;
 793                 while (d--)
 794                 {
 795                         a = renderlist[0]*4;
 796                         b = renderlist[1]*4;
 797                         c = renderlist[2]*4;
 798                         v1[0] = aliasvert[a+0] - aliasvert[b+0];
 799                         v1[1] = aliasvert[a+1] - aliasvert[b+1];
 800                         v1[2] = aliasvert[a+2] - aliasvert[b+2];
 801                         v2[0] = aliasvert[c+0] - aliasvert[b+0];
 802                         v2[1] = aliasvert[c+1] - aliasvert[b+1];
 803                         v2[2] = aliasvert[c+2] - aliasvert[b+2];
 804                         CrossProduct(v1, v2, normal);
 805                         VectorNormalizeFast(normal);
 806                         // add surface normal to vertices
 807                         a = renderlist[0] * 3;
 808                         aliasvertnorm[a+0] += normal[0];
 809                         aliasvertnorm[a+1] += normal[1];
 810                         aliasvertnorm[a+2] += normal[2];
 811                         aliasvertusage[renderlist[0]]++;
 812                         a = renderlist[1] * 3;
 813                         aliasvertnorm[a+0] += normal[0];
 814                         aliasvertnorm[a+1] += normal[1];
 815                         aliasvertnorm[a+2] += normal[2];
 816                         aliasvertusage[renderlist[1]]++;
 817                         a = renderlist[2] * 3;
 818                         aliasvertnorm[a+0] += normal[0];
 819                         aliasvertnorm[a+1] += normal[1];
 820                         aliasvertnorm[a+2] += normal[2];
 821                         aliasvertusage[renderlist[2]]++;
 822                         renderlist += 3;
 823                 }
 824         }
 825         // FIXME: precalc this
 826         // average surface normals
 827         out = aliasvertnorm;
 828         u = aliasvertusage;
 829         while(vertcount--)
 830         {
 831                 if (*u > 1)
 832                 {
 833                         s = ixtable[*u];
 834                         out[0] *= s;
 835                         out[1] *= s;
 836                         out[2] *= s;
 837                 }
 838                 u++;
 839                 out += 3;
 840         }
 841 }
 842
 843 void R_DrawZymoticModelMeshCallback (const void *calldata1, int calldata2)
 844 {
 845         float fog, colorscale;
 846         vec3_t diff;
 847         int i, *renderlist, *elements;
 848         zymtype1header_t *m;
 849         rtexture_t *texture;
 850         rmeshstate_t mstate;
 851         const entity_render_t *ent = calldata1;
 852         int shadernum = calldata2;
 853         int numverts, numtriangles;
 854
 855         R_Mesh_Matrix(&ent->matrix);
 856
 857         // find the vertex index list and texture
 858         m = ent->model->zymdata_header;
 859         renderlist = (int *)(m->lump_render.start + (int) m);
 860         for (i = 0;i < shadernum;i++)
 861                 renderlist += renderlist[0] * 3 + 1;
 862         texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[shadernum];
 863
 864         numverts = m->numverts;
 865         numtriangles = *renderlist++;
 866         elements = renderlist;
 867         R_Mesh_ResizeCheck(numverts);
 868
 869         fog = 0;
 870         if (fogenabled)
 871         {
 872                 VectorSubtract(ent->origin, r_origin, diff);
 873                 fog = DotProduct(diff,diff);
 874                 if (fog < 0.01f)
 875                         fog = 0.01f;
 876                 fog = exp(fogdensity/fog);
 877                 if (fog > 1)
 878                         fog = 1;
 879                 if (fog < 0.01f)
 880                         fog = 0;
 881                 // fog method: darken, additive fog
 882                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 883                 // 2. render fog as additive
 884         }
 885
 886         ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), ent->frameblend, (zymbone_t *)(m->lump_bones.start + (int) m));
 887         ZymoticTransformVerts(numverts, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
 888         ZymoticCalcNormals(numverts, m->numshaders, (int *)(m->lump_render.start + (int) m));
 889
 890         R_LightModel(ent, numverts, 1 - fog, 1 - fog, 1 - fog, false);
 891
 892         memset(&mstate, 0, sizeof(mstate));
 893         if (ent->effects & EF_ADDITIVE)
 894         {
 895                 mstate.blendfunc1 = GL_SRC_ALPHA;
 896                 mstate.blendfunc2 = GL_ONE;
 897         }
 898         else if (ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 899         {
 900                 mstate.blendfunc1 = GL_SRC_ALPHA;
 901                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 902         }
 903         else
 904         {
 905                 mstate.blendfunc1 = GL_ONE;
 906                 mstate.blendfunc2 = GL_ZERO;
 907         }
 908         colorscale = r_colorscale;
 909         if (gl_combine.integer)
 910         {
 911                 mstate.texrgbscale[0] = 4;
 912                 colorscale *= 0.25f;
 913         }
 914         mstate.tex[0] = R_GetTexture(texture);
 915         R_Mesh_State(&mstate);
 916
 917         c_alias_polys += numtriangles;
 918         memcpy(varray_vertex, aliasvert, numverts * sizeof(float[4]));
 919         R_ModulateColors(aliasvertcolor, varray_color, numverts, colorscale, colorscale, colorscale);
 920         memcpy(varray_texcoord[0], (float *)(m->lump_texcoords.start + (int) m), numverts * sizeof(float[2]));
 921         GL_UseColorArray();
 922         R_Mesh_Draw(numverts, numtriangles, elements);
 923
 924         if (fog)
 925         {
 926                 memset(&mstate, 0, sizeof(mstate));
 927                 mstate.blendfunc1 = GL_SRC_ALPHA;
 928                 mstate.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 929                 // FIXME: need alpha mask for fogging...
 930                 //mstate.tex[0] = R_GetTexture(texture);
 931                 R_Mesh_State(&mstate);
 932
 933                 c_alias_polys += numtriangles;
 934                 memcpy(varray_vertex, aliasvert, numverts * sizeof(float[4]));
 935                 //memcpy(mesh_texcoord[0], (float *)(m->lump_texcoords.start + (int) m), numverts * sizeof(float[2]));
 936                 GL_Color(fogcolor[0] * r_colorscale, fogcolor[1] * r_colorscale, fogcolor[2] * r_colorscale, ent->alpha * fog);
 937                 R_Mesh_Draw(numverts, numtriangles, elements);
 938         }
 939 }
 940
 941 void R_DrawZymoticModel (entity_render_t *ent)
 942 {
 943         int i;
 944         zymtype1header_t *m;
 945         rtexture_t *texture;
 946
 947         if (ent->alpha < (1.0f / 64.0f))
 948                 return; // basically completely transparent
 949
 950         c_models++;
 951
 952         m = ent->model->zymdata_header;
 953         for (i = 0;i < m->numshaders;i++)
 954         {
 955                 texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[i];
 956                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 957                         R_MeshQueue_AddTransparent(ent->origin, R_DrawZymoticModelMeshCallback, ent, i);
 958                 else
 959                         R_DrawZymoticModelMeshCallback(ent, i);
 960         }
 961 }
 962
 963 void R_DrawQ1Q2AliasModel(entity_render_t *ent)
 964 {
 965         if (ent->alpha < (1.0f / 64.0f))
 966                 return; // basically completely transparent
 967
 968         c_models++;
 969
 970         if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_FetchSkinFrame(ent)->fog != NULL)
 971                 R_MeshQueue_AddTransparent(ent->origin, R_DrawQ1Q2AliasModelCallback, ent, 0);
 972         else
 973                 R_DrawQ1Q2AliasModelCallback(ent, 0);
 974 }