gl_models.c

   1
   2 #include "quakedef.h"
   3
   4 cvar_t r_quickmodels = {0, "r_quickmodels", "1"};
   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         Cvar_RegisterVariable(&r_quickmodels);
  49
  50         R_RegisterModule("GL_Models", gl_models_start, gl_models_shutdown, gl_models_newmap);
  51 }
  52
  53 void R_AliasTransformVerts(int vertcount)
  54 {
  55         vec3_t point;
  56         float *av;
  57         av = aliasvert;
  58         while (vertcount >= 4)
  59         {
  60                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  61                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  62                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  63                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  64                 vertcount -= 4;
  65         }
  66         while(vertcount > 0)
  67         {
  68                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  69                 vertcount--;
  70         }
  71 }
  72
  73 void R_AliasLerpVerts(int vertcount,
  74                 float lerp1, trivertx_t *verts1, vec3_t fscale1, vec3_t translate1,
  75                 float lerp2, trivertx_t *verts2, vec3_t fscale2, vec3_t translate2,
  76                 float lerp3, trivertx_t *verts3, vec3_t fscale3, vec3_t translate3,
  77                 float lerp4, trivertx_t *verts4, vec3_t fscale4, vec3_t translate4)
  78 {
  79         int i;
  80         vec3_t scale1, scale2, scale3, scale4, translate;
  81         float *n1, *n2, *n3, *n4;
  82         float *av, *avn;
  83         av = aliasvert;
  84         avn = aliasvertnorm;
  85         VectorScale(fscale1, lerp1, scale1);
  86         if (lerp2)
  87         {
  88                 VectorScale(fscale2, lerp2, scale2);
  89                 if (lerp3)
  90                 {
  91                         VectorScale(fscale3, lerp3, scale3);
  92                         if (lerp4)
  93                         {
  94                                 VectorScale(fscale4, lerp4, scale4);
  95                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
  96                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
  97                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
  98                                 // generate vertices
  99                                 for (i = 0;i < vertcount;i++)
 100                                 {
 101                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
 102                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
 103                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
 104                                         n1 = m_bytenormals[verts1->lightnormalindex];
 105                                         n2 = m_bytenormals[verts2->lightnormalindex];
 106                                         n3 = m_bytenormals[verts3->lightnormalindex];
 107                                         n4 = m_bytenormals[verts4->lightnormalindex];
 108                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
 109                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
 110                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
 111                                         av += 4;
 112                                         avn += 3;
 113                                         verts1++;verts2++;verts3++;verts4++;
 114                                 }
 115                         }
 116                         else
 117                         {
 118                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
 119                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
 120                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
 121                                 // generate vertices
 122                                 for (i = 0;i < vertcount;i++)
 123                                 {
 124                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
 125                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
 126                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
 127                                         n1 = m_bytenormals[verts1->lightnormalindex];
 128                                         n2 = m_bytenormals[verts2->lightnormalindex];
 129                                         n3 = m_bytenormals[verts3->lightnormalindex];
 130                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
 131                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
 132                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
 133                                         av += 4;
 134                                         avn += 3;
 135                                         verts1++;verts2++;verts3++;
 136                                 }
 137                         }
 138                 }
 139                 else
 140                 {
 141                         translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
 142                         translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
 143                         translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
 144                         // generate vertices
 145                         for (i = 0;i < vertcount;i++)
 146                         {
 147                                 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
 148                                 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
 149                                 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
 150                                 n1 = m_bytenormals[verts1->lightnormalindex];
 151                                 n2 = m_bytenormals[verts2->lightnormalindex];
 152                                 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
 153                                 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
 154                                 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
 155                                 av += 4;
 156                                 avn += 3;
 157                                 verts1++;verts2++;
 158                         }
 159                 }
 160         }
 161         else
 162         {
 163                 translate[0] = translate1[0] * lerp1;
 164                 translate[1] = translate1[1] * lerp1;
 165                 translate[2] = translate1[2] * lerp1;
 166                 // generate vertices
 167                 if (lerp1 != 1)
 168                 {
 169                         // general but almost never used case
 170                         for (i = 0;i < vertcount;i++)
 171                         {
 172                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 173                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 174                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 175                                 n1 = m_bytenormals[verts1->lightnormalindex];
 176                                 avn[0] = n1[0] * lerp1;
 177                                 avn[1] = n1[1] * lerp1;
 178                                 avn[2] = n1[2] * lerp1;
 179                                 av += 4;
 180                                 avn += 3;
 181                                 verts1++;
 182                         }
 183                 }
 184                 else
 185                 {
 186                         // fast normal case
 187                         for (i = 0;i < vertcount;i++)
 188                         {
 189                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 190                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 191                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 192                                 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
 193                                 av += 4;
 194                                 avn += 3;
 195                                 verts1++;
 196                         }
 197                 }
 198         }
 199 }
 200
 201 skinframe_t *R_FetchSkinFrame(entity_render_t *ent)
 202 {
 203         model_t *model = ent->model;
 204         if (model->skinscenes[ent->skinnum].framecount > 1)
 205                 return &model->skinframes[model->skinscenes[ent->skinnum].firstframe + (int) (cl.time * 10) % model->skinscenes[ent->skinnum].framecount];
 206         else
 207                 return &model->skinframes[model->skinscenes[ent->skinnum].firstframe];
 208 }
 209
 210 void R_SetupMDLMD2Frames(entity_render_t *ent, float colorr, float colorg, float colorb)
 211 {
 212         md2frame_t *frame1, *frame2, *frame3, *frame4;
 213         trivertx_t *frame1verts, *frame2verts, *frame3verts, *frame4verts;
 214         model_t *model;
 215         model = ent->model;
 216
 217         frame1 = &model->mdlmd2data_frames[ent->frameblend[0].frame];
 218         frame2 = &model->mdlmd2data_frames[ent->frameblend[1].frame];
 219         frame3 = &model->mdlmd2data_frames[ent->frameblend[2].frame];
 220         frame4 = &model->mdlmd2data_frames[ent->frameblend[3].frame];
 221         frame1verts = &model->mdlmd2data_pose[ent->frameblend[0].frame * model->numverts];
 222         frame2verts = &model->mdlmd2data_pose[ent->frameblend[1].frame * model->numverts];
 223         frame3verts = &model->mdlmd2data_pose[ent->frameblend[2].frame * model->numverts];
 224         frame4verts = &model->mdlmd2data_pose[ent->frameblend[3].frame * model->numverts];
 225         R_AliasLerpVerts(model->numverts,
 226                 ent->frameblend[0].lerp, frame1verts, frame1->scale, frame1->translate,
 227                 ent->frameblend[1].lerp, frame2verts, frame2->scale, frame2->translate,
 228                 ent->frameblend[2].lerp, frame3verts, frame3->scale, frame3->translate,
 229                 ent->frameblend[3].lerp, frame4verts, frame4->scale, frame4->translate);
 230
 231         R_LightModel(ent, model->numverts, colorr, colorg, colorb, false);
 232
 233         R_AliasTransformVerts(model->numverts);
 234 }
 235
 236 void R_DrawQ1Q2AliasModelCallback (void *calldata1, int calldata2)
 237 {
 238         int c, pantsfullbright, shirtfullbright, colormapped;
 239         float pantscolor[3], shirtcolor[3];
 240         float fog;
 241         vec3_t diff;
 242         qbyte *bcolor;
 243         rmeshbufferinfo_t m;
 244         model_t *model;
 245         skinframe_t *skinframe;
 246         entity_render_t *ent;
 247
 248         ent = calldata1;
 249         softwaretransformforentity(ent);
 250
 251         fog = 0;
 252         if (fogenabled)
 253         {
 254                 VectorSubtract(ent->origin, r_origin, diff);
 255                 fog = DotProduct(diff,diff);
 256                 if (fog < 0.01f)
 257                         fog = 0.01f;
 258                 fog = exp(fogdensity/fog);
 259                 if (fog > 1)
 260                         fog = 1;
 261                 if (fog < 0.01f)
 262                         fog = 0;
 263                 // fog method: darken, additive fog
 264                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 265                 // 2. render fog as additive
 266         }
 267
 268         model = ent->model;
 269
 270         skinframe = R_FetchSkinFrame(ent);
 271
 272         colormapped = !skinframe->merged || (ent->colormap >= 0 && skinframe->base && (skinframe->pants || skinframe->shirt));
 273         if (!colormapped && !fog && !skinframe->glow && !skinframe->fog)
 274         {
 275                 // fastpath for the normal situation (one texture)
 276                 memset(&m, 0, sizeof(m));
 277                 if (ent->effects & EF_ADDITIVE)
 278                 {
 279                         m.blendfunc1 = GL_SRC_ALPHA;
 280                         m.blendfunc2 = GL_ONE;
 281                 }
 282                 else if (ent->alpha != 1.0 || skinframe->fog != NULL)
 283                 {
 284                         m.blendfunc1 = GL_SRC_ALPHA;
 285                         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 286                 }
 287                 else
 288                 {
 289                         m.blendfunc1 = GL_ONE;
 290                         m.blendfunc2 = GL_ZERO;
 291                 }
 292                 m.numtriangles = model->numtris;
 293                 m.numverts = model->numverts;
 294                 m.tex[0] = R_GetTexture(skinframe->merged);
 295
 296                 c_alias_polys += m.numtriangles;
 297                 if (R_Mesh_Draw_GetBuffer(&m, true))
 298                 {
 299                         memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 300                         memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 301
 302                         aliasvert = m.vertex;
 303                         aliasvertcolor = m.color;
 304                         R_SetupMDLMD2Frames(ent, m.colorscale * (1 - fog), m.colorscale * (1 - fog), m.colorscale * (1 - fog));
 305                         aliasvert = aliasvertbuf;
 306                         aliasvertcolor = aliasvertcolorbuf;
 307
 308                         R_Mesh_Render();
 309                 }
 310                 return;
 311         }
 312
 313         R_SetupMDLMD2Frames(ent, 1 - fog, 1 - fog, 1 - fog);
 314
 315         if (colormapped)
 316         {
 317                 // 128-224 are backwards ranges
 318                 c = (ent->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12;
 319                 bcolor = (qbyte *) (&d_8to24table[c]);
 320                 pantsfullbright = c >= 224;
 321                 VectorScale(bcolor, (1.0f / 255.0f), pantscolor);
 322                 c = (ent->colormap & 0xF0);c += (c >= 128 && c < 224) ? 4 : 12;
 323                 bcolor = (qbyte *) (&d_8to24table[c]);
 324                 shirtfullbright = c >= 224;
 325                 VectorScale(bcolor, (1.0f / 255.0f), shirtcolor);
 326         }
 327         else
 328         {
 329                 pantscolor[0] = pantscolor[1] = pantscolor[2] = shirtcolor[0] = shirtcolor[1] = shirtcolor[2] = 1;
 330                 pantsfullbright = shirtfullbright = false;
 331         }
 332
 333         memset(&m, 0, sizeof(m));
 334         if (ent->effects & EF_ADDITIVE)
 335         {
 336                 m.blendfunc1 = GL_SRC_ALPHA;
 337                 m.blendfunc2 = GL_ONE;
 338         }
 339         else if (ent->alpha != 1.0 || skinframe->fog != NULL)
 340         {
 341                 m.blendfunc1 = GL_SRC_ALPHA;
 342                 m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 343         }
 344         else
 345         {
 346                 m.blendfunc1 = GL_ONE;
 347                 m.blendfunc2 = GL_ZERO;
 348         }
 349         m.numtriangles = model->numtris;
 350         m.numverts = model->numverts;
 351         m.tex[0] = colormapped ? R_GetTexture(skinframe->base) : R_GetTexture(skinframe->merged);
 352         if (R_Mesh_Draw_GetBuffer(&m, true))
 353         {
 354                 c_alias_polys += m.numtriangles;
 355                 R_ModulateColors(aliasvertcolor, m.color, m.numverts, m.colorscale, m.colorscale, m.colorscale);
 356                 memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 357                 memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 358                 memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 359                 R_Mesh_Render();
 360         }
 361
 362         if (colormapped)
 363         {
 364                 if (skinframe->pants)
 365                 {
 366                         memset(&m, 0, sizeof(m));
 367                         m.blendfunc1 = GL_SRC_ALPHA;
 368                         m.blendfunc2 = GL_ONE;
 369                         m.numtriangles = model->numtris;
 370                         m.numverts = model->numverts;
 371                         m.tex[0] = R_GetTexture(skinframe->pants);
 372                         if (R_Mesh_Draw_GetBuffer(&m, true))
 373                         {
 374                                 c_alias_polys += m.numtriangles;
 375                                 if (pantsfullbright)
 376                                         R_FillColors(m.color, m.numverts, pantscolor[0] * m.colorscale, pantscolor[1] * m.colorscale, pantscolor[2] * m.colorscale, ent->alpha);
 377                                 else
 378                                         R_ModulateColors(aliasvertcolor, m.color, m.numverts, pantscolor[0] * m.colorscale, pantscolor[1] * m.colorscale, pantscolor[2] * m.colorscale);
 379                                 memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 380                                 memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 381                                 memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 382                                 R_Mesh_Render();
 383                         }
 384                 }
 385                 if (skinframe->shirt)
 386                 {
 387                         memset(&m, 0, sizeof(m));
 388                         m.blendfunc1 = GL_SRC_ALPHA;
 389                         m.blendfunc2 = GL_ONE;
 390                         m.numtriangles = model->numtris;
 391                         m.numverts = model->numverts;
 392                         m.tex[0] = R_GetTexture(skinframe->shirt);
 393                         if (R_Mesh_Draw_GetBuffer(&m, true))
 394                         {
 395                                 c_alias_polys += m.numtriangles;
 396                                 if (shirtfullbright)
 397                                         R_FillColors(m.color, m.numverts, shirtcolor[0] * m.colorscale, shirtcolor[1] * m.colorscale, shirtcolor[2] * m.colorscale, ent->alpha);
 398                                 else
 399                                         R_ModulateColors(aliasvertcolor, m.color, m.numverts, shirtcolor[0] * m.colorscale, shirtcolor[1] * m.colorscale, shirtcolor[2] * m.colorscale);
 400                                 memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 401                                 memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 402                                 memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 403                                 R_Mesh_Render();
 404                         }
 405                 }
 406         }
 407         if (skinframe->glow)
 408         {
 409                 memset(&m, 0, sizeof(m));
 410                 m.blendfunc1 = GL_SRC_ALPHA;
 411                 m.blendfunc2 = GL_ONE;
 412                 m.numtriangles = model->numtris;
 413                 m.numverts = model->numverts;
 414                 m.tex[0] = R_GetTexture(skinframe->glow);
 415                 if (R_Mesh_Draw_GetBuffer(&m, true))
 416                 {
 417                         c_alias_polys += m.numtriangles;
 418                         R_FillColors(m.color, m.numverts, (1 - fog) * m.colorscale, (1 - fog) * m.colorscale, (1 - fog) * m.colorscale, ent->alpha);
 419                         memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 420                         memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 421                         memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 422                         R_Mesh_Render();
 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.numtriangles = model->numtris;
 431                 m.numverts = model->numverts;
 432                 m.tex[0] = R_GetTexture(skinframe->fog);
 433                 if (R_Mesh_Draw_GetBuffer(&m, false))
 434                 {
 435                         c_alias_polys += m.numtriangles;
 436                         R_FillColors(m.color, m.numverts, fog * m.colorscale, fog * m.colorscale, fog * m.colorscale, ent->alpha);
 437                         memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 438                         memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 439                         memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 440                         R_Mesh_Render();
 441                 }
 442         }
 443 }
 444
 445 int ZymoticLerpBones(int count, zymbonematrix *bonebase, frameblend_t *blend, zymbone_t *bone)
 446 {
 447         int i;
 448         float lerp1, lerp2, lerp3, lerp4;
 449         zymbonematrix *out, rootmatrix, m, *bone1, *bone2, *bone3, *bone4;
 450
 451         // LordHavoc: combine transform from zym coordinate space to quake coordinate space with model to world transform matrix
 452         rootmatrix.m[0][0] = softwaretransform_matrix[0][1];
 453         rootmatrix.m[0][1] = -softwaretransform_matrix[0][0];
 454         rootmatrix.m[0][2] = softwaretransform_matrix[0][2];
 455         rootmatrix.m[0][3] = softwaretransform_matrix[0][3];
 456         rootmatrix.m[1][0] = softwaretransform_matrix[1][1];
 457         rootmatrix.m[1][1] = -softwaretransform_matrix[1][0];
 458         rootmatrix.m[1][2] = softwaretransform_matrix[1][2];
 459         rootmatrix.m[1][3] = softwaretransform_matrix[1][3];
 460         rootmatrix.m[2][0] = softwaretransform_matrix[2][1];
 461         rootmatrix.m[2][1] = -softwaretransform_matrix[2][0];
 462         rootmatrix.m[2][2] = softwaretransform_matrix[2][2];
 463         rootmatrix.m[2][3] = softwaretransform_matrix[2][3];
 464
 465         bone1 = bonebase + blend[0].frame * count;
 466         lerp1 = blend[0].lerp;
 467         if (blend[1].lerp)
 468         {
 469                 bone2 = bonebase + blend[1].frame * count;
 470                 lerp2 = blend[1].lerp;
 471                 if (blend[2].lerp)
 472                 {
 473                         bone3 = bonebase + blend[2].frame * count;
 474                         lerp3 = blend[2].lerp;
 475                         if (blend[3].lerp)
 476                         {
 477                                 // 4 poses
 478                                 bone4 = bonebase + blend[3].frame * count;
 479                                 lerp4 = blend[3].lerp;
 480                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 481                                 {
 482                                         // interpolate matrices
 483                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 484                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 485                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 486                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 487                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 488                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 489                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 490                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 491                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 492                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 493                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 494                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 495                                         if (bone->parent >= 0)
 496                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 497                                         else
 498                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 499                                         bone1++;
 500                                         bone2++;
 501                                         bone3++;
 502                                         bone4++;
 503                                         bone++;
 504                                 }
 505                         }
 506                         else
 507                         {
 508                                 // 3 poses
 509                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 510                                 {
 511                                         // interpolate matrices
 512                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 513                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 514                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 515                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 516                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 517                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 518                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 519                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 520                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 521                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 522                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 523                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 524                                         if (bone->parent >= 0)
 525                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 526                                         else
 527                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 528                                         bone1++;
 529                                         bone2++;
 530                                         bone3++;
 531                                         bone++;
 532                                 }
 533                         }
 534                 }
 535                 else
 536                 {
 537                         // 2 poses
 538                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 539                         {
 540                                 // interpolate matrices
 541                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 542                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 543                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 544                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 545                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 546                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 547                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 548                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 549                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 550                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 551                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 552                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 553                                 if (bone->parent >= 0)
 554                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 555                                 else
 556                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 557                                 bone1++;
 558                                 bone2++;
 559                                 bone++;
 560                         }
 561                 }
 562         }
 563         else
 564         {
 565                 // 1 pose
 566                 if (lerp1 != 1)
 567                 {
 568                         // lerp != 1.0
 569                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 570                         {
 571                                 // interpolate matrices
 572                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 573                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 574                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 575                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 576                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 577                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 578                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 579                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 580                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 581                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 582                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 583                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 584                                 if (bone->parent >= 0)
 585                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 586                                 else
 587                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 588                                 bone1++;
 589                                 bone++;
 590                         }
 591                 }
 592                 else
 593                 {
 594                         // lerp == 1.0
 595                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 596                         {
 597                                 if (bone->parent >= 0)
 598                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &bone1->m[0][0], &out->m[0][0]);
 599                                 else
 600                                         R_ConcatTransforms(&rootmatrix.m[0][0], &bone1->m[0][0], &out->m[0][0]);
 601                                 bone1++;
 602                                 bone++;
 603                         }
 604                 }
 605         }
 606         return true;
 607 }
 608
 609 void ZymoticTransformVerts(int vertcount, int *bonecounts, zymvertex_t *vert)
 610 {
 611         int c;
 612         float *out = aliasvert;
 613         zymbonematrix *matrix;
 614         while(vertcount--)
 615         {
 616                 c = *bonecounts++;
 617                 // FIXME: validate bonecounts at load time (must be >= 1)
 618                 // FIXME: need 4th component in origin, for how much of the translate to blend in
 619                 if (c == 1)
 620                 {
 621                         matrix = &zymbonepose[vert->bonenum];
 622                         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];
 623                         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];
 624                         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];
 625                         vert++;
 626                 }
 627                 else
 628                 {
 629                         VectorClear(out);
 630                         while(c--)
 631                         {
 632                                 matrix = &zymbonepose[vert->bonenum];
 633                                 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];
 634                                 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];
 635                                 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];
 636                                 vert++;
 637                         }
 638                 }
 639                 out += 4;
 640         }
 641 }
 642
 643 void ZymoticCalcNormals(int vertcount, int shadercount, int *renderlist)
 644 {
 645         int a, b, c, d;
 646         float *out, v1[3], v2[3], normal[3], s;
 647         int *u;
 648         // clear normals
 649         memset(aliasvertnorm, 0, sizeof(float) * vertcount * 3);
 650         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 651         // parse render list and accumulate surface normals
 652         while(shadercount--)
 653         {
 654                 d = *renderlist++;
 655                 while (d--)
 656                 {
 657                         a = renderlist[0]*4;
 658                         b = renderlist[1]*4;
 659                         c = renderlist[2]*4;
 660                         v1[0] = aliasvert[a+0] - aliasvert[b+0];
 661                         v1[1] = aliasvert[a+1] - aliasvert[b+1];
 662                         v1[2] = aliasvert[a+2] - aliasvert[b+2];
 663                         v2[0] = aliasvert[c+0] - aliasvert[b+0];
 664                         v2[1] = aliasvert[c+1] - aliasvert[b+1];
 665                         v2[2] = aliasvert[c+2] - aliasvert[b+2];
 666                         CrossProduct(v1, v2, normal);
 667                         VectorNormalizeFast(normal);
 668                         // add surface normal to vertices
 669                         a = renderlist[0] * 3;
 670                         aliasvertnorm[a+0] += normal[0];
 671                         aliasvertnorm[a+1] += normal[1];
 672                         aliasvertnorm[a+2] += normal[2];
 673                         aliasvertusage[renderlist[0]]++;
 674                         a = renderlist[1] * 3;
 675                         aliasvertnorm[a+0] += normal[0];
 676                         aliasvertnorm[a+1] += normal[1];
 677                         aliasvertnorm[a+2] += normal[2];
 678                         aliasvertusage[renderlist[1]]++;
 679                         a = renderlist[2] * 3;
 680                         aliasvertnorm[a+0] += normal[0];
 681                         aliasvertnorm[a+1] += normal[1];
 682                         aliasvertnorm[a+2] += normal[2];
 683                         aliasvertusage[renderlist[2]]++;
 684                         renderlist += 3;
 685                 }
 686         }
 687         // FIXME: precalc this
 688         // average surface normals
 689         out = aliasvertnorm;
 690         u = aliasvertusage;
 691         while(vertcount--)
 692         {
 693                 if (*u > 1)
 694                 {
 695                         s = ixtable[*u];
 696                         out[0] *= s;
 697                         out[1] *= s;
 698                         out[2] *= s;
 699                 }
 700                 u++;
 701                 out += 3;
 702         }
 703 }
 704
 705 void R_DrawZymoticModelMeshCallback (void *calldata1, int calldata2)
 706 {
 707         float fog;
 708         vec3_t diff;
 709         int i, *renderlist;
 710         zymtype1header_t *m;
 711         rtexture_t *texture;
 712         rmeshbufferinfo_t mbuf;
 713         entity_render_t *ent;
 714         int shadernum;
 715
 716         ent = calldata1;
 717         shadernum = calldata2;
 718
 719         // find the vertex index list and texture
 720         m = ent->model->zymdata_header;
 721         renderlist = (int *)(m->lump_render.start + (int) m);
 722         for (i = 0;i < shadernum;i++)
 723                 renderlist += renderlist[0] * 3 + 1;
 724         texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[shadernum];
 725
 726         fog = 0;
 727         if (fogenabled)
 728         {
 729                 VectorSubtract(ent->origin, r_origin, diff);
 730                 fog = DotProduct(diff,diff);
 731                 if (fog < 0.01f)
 732                         fog = 0.01f;
 733                 fog = exp(fogdensity/fog);
 734                 if (fog > 1)
 735                         fog = 1;
 736                 if (fog < 0.01f)
 737                         fog = 0;
 738                 // fog method: darken, additive fog
 739                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 740                 // 2. render fog as additive
 741         }
 742
 743         softwaretransformforentity(ent);
 744         ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), ent->frameblend, (zymbone_t *)(m->lump_bones.start + (int) m));
 745         ZymoticTransformVerts(m->numverts, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
 746         ZymoticCalcNormals(m->numverts, m->numshaders, (int *)(m->lump_render.start + (int) m));
 747
 748         R_LightModel(ent, m->numverts, 1 - fog, 1 - fog, 1 - fog, true);
 749
 750         memset(&mbuf, 0, sizeof(mbuf));
 751         mbuf.numverts = m->numverts;
 752         mbuf.numtriangles = renderlist[0];
 753         if (ent->effects & EF_ADDITIVE)
 754         {
 755                 mbuf.blendfunc1 = GL_SRC_ALPHA;
 756                 mbuf.blendfunc2 = GL_ONE;
 757         }
 758         else if (ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 759         {
 760                 mbuf.blendfunc1 = GL_SRC_ALPHA;
 761                 mbuf.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 762         }
 763         else
 764         {
 765                 mbuf.blendfunc1 = GL_ONE;
 766                 mbuf.blendfunc2 = GL_ZERO;
 767         }
 768         mbuf.tex[0] = R_GetTexture(texture);
 769         if (R_Mesh_Draw_GetBuffer(&mbuf, true))
 770         {
 771                 c_alias_polys += mbuf.numtriangles;
 772                 memcpy(mbuf.index, renderlist + 1, mbuf.numtriangles * sizeof(int[3]));
 773                 memcpy(mbuf.vertex, aliasvert, mbuf.numverts * sizeof(float[4]));
 774                 R_ModulateColors(aliasvertcolor, mbuf.color, mbuf.numverts, mbuf.colorscale, mbuf.colorscale, mbuf.colorscale);
 775                 //memcpy(mbuf.color, aliasvertcolor, mbuf.numverts * sizeof(float[4]));
 776                 memcpy(mbuf.texcoords[0], (float *)(m->lump_texcoords.start + (int) m), mbuf.numverts * sizeof(float[2]));
 777                 R_Mesh_Render();
 778         }
 779
 780         if (fog)
 781         {
 782                 memset(&mbuf, 0, sizeof(mbuf));
 783                 mbuf.numverts = m->numverts;
 784                 mbuf.numtriangles = renderlist[0];
 785                 mbuf.blendfunc1 = GL_SRC_ALPHA;
 786                 mbuf.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 787                 // FIXME: need alpha mask for fogging...
 788                 //mbuf.tex[0] = R_GetTexture(texture);
 789                 if (R_Mesh_Draw_GetBuffer(&mbuf, false))
 790                 {
 791                         c_alias_polys += mbuf.numtriangles;
 792                         memcpy(mbuf.index, renderlist + 1, mbuf.numtriangles * sizeof(int[3]));
 793                         memcpy(mbuf.vertex, aliasvert, mbuf.numverts * sizeof(float[4]));
 794                         R_FillColors(mbuf.color, mbuf.numverts, fogcolor[0] * mbuf.colorscale, fogcolor[1] * mbuf.colorscale, fogcolor[2] * mbuf.colorscale, ent->alpha * fog);
 795                         //memcpy(mbuf.texcoords[0], (float *)(m->lump_texcoords.start + (int) m), mbuf.numverts * sizeof(float[2]));
 796                         R_Mesh_Render();
 797                 }
 798         }
 799 }
 800
 801 void R_DrawZymoticModel (entity_render_t *ent)
 802 {
 803         int i;
 804         zymtype1header_t *m;
 805         rtexture_t *texture;
 806
 807         if (ent->alpha < (1.0f / 64.0f))
 808                 return; // basically completely transparent
 809
 810         c_models++;
 811
 812         m = ent->model->zymdata_header;
 813         for (i = 0;i < m->numshaders;i++)
 814         {
 815                 texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[i];
 816                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 817                         R_MeshQueue_AddTransparent(ent->origin, R_DrawZymoticModelMeshCallback, ent, i);
 818                 else
 819                         R_MeshQueue_Add(R_DrawZymoticModelMeshCallback, ent, i);
 820         }
 821 }
 822
 823 void R_DrawQ1Q2AliasModel(entity_render_t *ent)
 824 {
 825         if (ent->alpha < (1.0f / 64.0f))
 826                 return; // basically completely transparent
 827
 828         c_models++;
 829
 830         if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_FetchSkinFrame(ent)->fog != NULL)
 831                 R_MeshQueue_AddTransparent(ent->origin, R_DrawQ1Q2AliasModelCallback, ent, 0);
 832         else
 833                 R_MeshQueue_Add(R_DrawQ1Q2AliasModelCallback, ent, 0);
 834 }
 835