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 /*
  54 void R_AliasTransformVerts(int vertcount)
  55 {
  56         vec3_t point;
  57         float *av;
  58         av = aliasvert;
  59         while (vertcount >= 4)
  60         {
  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                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  65                 vertcount -= 4;
  66         }
  67         while(vertcount > 0)
  68         {
  69                 VectorCopy(av, point);softwaretransform(point, av);av += 4;
  70                 vertcount--;
  71         }
  72 }
  73 */
  74
  75 void R_AliasLerpVerts(int vertcount,
  76                 float lerp1, const trivertx_t *verts1, const vec3_t fscale1, const vec3_t translate1,
  77                 float lerp2, const trivertx_t *verts2, const vec3_t fscale2, const vec3_t translate2,
  78                 float lerp3, const trivertx_t *verts3, const vec3_t fscale3, const vec3_t translate3,
  79                 float lerp4, const trivertx_t *verts4, const vec3_t fscale4, const vec3_t translate4)
  80 {
  81         int i;
  82         vec3_t scale1, scale2, scale3, scale4, translate;
  83         const float *n1, *n2, *n3, *n4;
  84         float *av, *avn;
  85         av = aliasvert;
  86         avn = aliasvertnorm;
  87         VectorScale(fscale1, lerp1, scale1);
  88         if (lerp2)
  89         {
  90                 VectorScale(fscale2, lerp2, scale2);
  91                 if (lerp3)
  92                 {
  93                         VectorScale(fscale3, lerp3, scale3);
  94                         if (lerp4)
  95                         {
  96                                 VectorScale(fscale4, lerp4, scale4);
  97                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3 + translate4[0] * lerp4;
  98                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3 + translate4[1] * lerp4;
  99                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3 + translate4[2] * lerp4;
 100                                 // generate vertices
 101                                 for (i = 0;i < vertcount;i++)
 102                                 {
 103                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + verts4->v[0] * scale4[0] + translate[0];
 104                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + verts4->v[1] * scale4[1] + translate[1];
 105                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + verts4->v[2] * scale4[2] + translate[2];
 106                                         n1 = m_bytenormals[verts1->lightnormalindex];
 107                                         n2 = m_bytenormals[verts2->lightnormalindex];
 108                                         n3 = m_bytenormals[verts3->lightnormalindex];
 109                                         n4 = m_bytenormals[verts4->lightnormalindex];
 110                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3 + n4[0] * lerp4;
 111                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3 + n4[1] * lerp4;
 112                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3 + n4[2] * lerp4;
 113                                         av += 4;
 114                                         avn += 3;
 115                                         verts1++;verts2++;verts3++;verts4++;
 116                                 }
 117                         }
 118                         else
 119                         {
 120                                 translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2 + translate3[0] * lerp3;
 121                                 translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2 + translate3[1] * lerp3;
 122                                 translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2 + translate3[2] * lerp3;
 123                                 // generate vertices
 124                                 for (i = 0;i < vertcount;i++)
 125                                 {
 126                                         av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + verts3->v[0] * scale3[0] + translate[0];
 127                                         av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + verts3->v[1] * scale3[1] + translate[1];
 128                                         av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + verts3->v[2] * scale3[2] + translate[2];
 129                                         n1 = m_bytenormals[verts1->lightnormalindex];
 130                                         n2 = m_bytenormals[verts2->lightnormalindex];
 131                                         n3 = m_bytenormals[verts3->lightnormalindex];
 132                                         avn[0] = n1[0] * lerp1 + n2[0] * lerp2 + n3[0] * lerp3;
 133                                         avn[1] = n1[1] * lerp1 + n2[1] * lerp2 + n3[1] * lerp3;
 134                                         avn[2] = n1[2] * lerp1 + n2[2] * lerp2 + n3[2] * lerp3;
 135                                         av += 4;
 136                                         avn += 3;
 137                                         verts1++;verts2++;verts3++;
 138                                 }
 139                         }
 140                 }
 141                 else
 142                 {
 143                         translate[0] = translate1[0] * lerp1 + translate2[0] * lerp2;
 144                         translate[1] = translate1[1] * lerp1 + translate2[1] * lerp2;
 145                         translate[2] = translate1[2] * lerp1 + translate2[2] * lerp2;
 146                         // generate vertices
 147                         for (i = 0;i < vertcount;i++)
 148                         {
 149                                 av[0] = verts1->v[0] * scale1[0] + verts2->v[0] * scale2[0] + translate[0];
 150                                 av[1] = verts1->v[1] * scale1[1] + verts2->v[1] * scale2[1] + translate[1];
 151                                 av[2] = verts1->v[2] * scale1[2] + verts2->v[2] * scale2[2] + translate[2];
 152                                 n1 = m_bytenormals[verts1->lightnormalindex];
 153                                 n2 = m_bytenormals[verts2->lightnormalindex];
 154                                 avn[0] = n1[0] * lerp1 + n2[0] * lerp2;
 155                                 avn[1] = n1[1] * lerp1 + n2[1] * lerp2;
 156                                 avn[2] = n1[2] * lerp1 + n2[2] * lerp2;
 157                                 av += 4;
 158                                 avn += 3;
 159                                 verts1++;verts2++;
 160                         }
 161                 }
 162         }
 163         else
 164         {
 165                 translate[0] = translate1[0] * lerp1;
 166                 translate[1] = translate1[1] * lerp1;
 167                 translate[2] = translate1[2] * lerp1;
 168                 // generate vertices
 169                 if (lerp1 != 1)
 170                 {
 171                         // general but almost never used case
 172                         for (i = 0;i < vertcount;i++)
 173                         {
 174                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 175                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 176                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 177                                 n1 = m_bytenormals[verts1->lightnormalindex];
 178                                 avn[0] = n1[0] * lerp1;
 179                                 avn[1] = n1[1] * lerp1;
 180                                 avn[2] = n1[2] * lerp1;
 181                                 av += 4;
 182                                 avn += 3;
 183                                 verts1++;
 184                         }
 185                 }
 186                 else
 187                 {
 188                         // fast normal case
 189                         for (i = 0;i < vertcount;i++)
 190                         {
 191                                 av[0] = verts1->v[0] * scale1[0] + translate[0];
 192                                 av[1] = verts1->v[1] * scale1[1] + translate[1];
 193                                 av[2] = verts1->v[2] * scale1[2] + translate[2];
 194                                 VectorCopy(m_bytenormals[verts1->lightnormalindex], avn);
 195                                 av += 4;
 196                                 avn += 3;
 197                                 verts1++;
 198                         }
 199                 }
 200         }
 201 }
 202
 203 skinframe_t *R_FetchSkinFrame(const entity_render_t *ent)
 204 {
 205         model_t *model = ent->model;
 206         unsigned int s = (unsigned int) ent->skinnum;
 207         if (s >= model->numskins)
 208                 s = 0;
 209         if (model->skinscenes[s].framecount > 1)
 210                 return &model->skinframes[model->skinscenes[s].firstframe + (int) (cl.time * 10) % model->skinscenes[s].framecount];
 211         else
 212                 return &model->skinframes[model->skinscenes[s].firstframe];
 213 }
 214
 215 void R_SetupMDLMD2Frames(const entity_render_t *ent, float colorr, float colorg, float colorb)
 216 {
 217         const md2frame_t *frame1, *frame2, *frame3, *frame4;
 218         const trivertx_t *frame1verts, *frame2verts, *frame3verts, *frame4verts;
 219         const model_t *model = ent->model;
 220
 221         frame1 = &model->mdlmd2data_frames[ent->frameblend[0].frame];
 222         frame2 = &model->mdlmd2data_frames[ent->frameblend[1].frame];
 223         frame3 = &model->mdlmd2data_frames[ent->frameblend[2].frame];
 224         frame4 = &model->mdlmd2data_frames[ent->frameblend[3].frame];
 225         frame1verts = &model->mdlmd2data_pose[ent->frameblend[0].frame * model->numverts];
 226         frame2verts = &model->mdlmd2data_pose[ent->frameblend[1].frame * model->numverts];
 227         frame3verts = &model->mdlmd2data_pose[ent->frameblend[2].frame * model->numverts];
 228         frame4verts = &model->mdlmd2data_pose[ent->frameblend[3].frame * model->numverts];
 229         R_AliasLerpVerts(model->numverts,
 230                 ent->frameblend[0].lerp, frame1verts, frame1->scale, frame1->translate,
 231                 ent->frameblend[1].lerp, frame2verts, frame2->scale, frame2->translate,
 232                 ent->frameblend[2].lerp, frame3verts, frame3->scale, frame3->translate,
 233                 ent->frameblend[3].lerp, frame4verts, frame4->scale, frame4->translate);
 234
 235         R_LightModel(ent, model->numverts, colorr, colorg, colorb, false);
 236
 237         //R_AliasTransformVerts(model->numverts);
 238 }
 239
 240 void R_DrawQ1Q2AliasModelCallback (const void *calldata1, int calldata2)
 241 {
 242         int c, pantsfullbright, shirtfullbright, colormapped;
 243         float pantscolor[3], shirtcolor[3];
 244         float fog;
 245         vec3_t diff;
 246         qbyte *bcolor;
 247         rmeshbufferinfo_t m;
 248         model_t *model;
 249         skinframe_t *skinframe;
 250         const entity_render_t *ent = calldata1;
 251         int blendfunc1, blendfunc2;
 252
 253 //      softwaretransformforentity(ent);
 254
 255         fog = 0;
 256         if (fogenabled)
 257         {
 258                 VectorSubtract(ent->origin, r_origin, diff);
 259                 fog = DotProduct(diff,diff);
 260                 if (fog < 0.01f)
 261                         fog = 0.01f;
 262                 fog = exp(fogdensity/fog);
 263                 if (fog > 1)
 264                         fog = 1;
 265                 if (fog < 0.01f)
 266                         fog = 0;
 267                 // fog method: darken, additive fog
 268                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 269                 // 2. render fog as additive
 270         }
 271
 272         model = ent->model;
 273
 274         skinframe = R_FetchSkinFrame(ent);
 275
 276         colormapped = !skinframe->merged || (ent->colormap >= 0 && skinframe->base && (skinframe->pants || skinframe->shirt));
 277         if (!colormapped && !fog && !skinframe->glow && !skinframe->fog)
 278         {
 279                 // fastpath for the normal situation (one texture)
 280                 memset(&m, 0, sizeof(m));
 281                 if (ent->effects & EF_ADDITIVE)
 282                 {
 283                         m.blendfunc1 = GL_SRC_ALPHA;
 284                         m.blendfunc2 = GL_ONE;
 285                 }
 286                 else if (ent->alpha != 1.0 || skinframe->fog != NULL)
 287                 {
 288                         m.blendfunc1 = GL_SRC_ALPHA;
 289                         m.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 290                 }
 291                 else
 292                 {
 293                         m.blendfunc1 = GL_ONE;
 294                         m.blendfunc2 = GL_ZERO;
 295                 }
 296                 m.numtriangles = model->numtris;
 297                 m.numverts = model->numverts;
 298                 m.tex[0] = R_GetTexture(skinframe->merged);
 299                 m.matrix = ent->matrix;
 300
 301                 c_alias_polys += m.numtriangles;
 302                 if (R_Mesh_Draw_GetBuffer(&m, true))
 303                 {
 304                         memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 305                         memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 306
 307                         aliasvert = m.vertex;
 308                         aliasvertcolor = m.color;
 309                         R_SetupMDLMD2Frames(ent, m.colorscale, m.colorscale, m.colorscale);
 310                         aliasvert = aliasvertbuf;
 311                         aliasvertcolor = aliasvertcolorbuf;
 312
 313                         R_Mesh_Render();
 314                 }
 315                 return;
 316         }
 317
 318         R_SetupMDLMD2Frames(ent, 1 - fog, 1 - fog, 1 - fog);
 319
 320         if (colormapped)
 321         {
 322                 // 128-224 are backwards ranges
 323                 c = (ent->colormap & 0xF) << 4;c += (c >= 128 && c < 224) ? 4 : 12;
 324                 bcolor = (qbyte *) (&d_8to24table[c]);
 325                 pantsfullbright = c >= 224;
 326                 VectorScale(bcolor, (1.0f / 255.0f), pantscolor);
 327                 c = (ent->colormap & 0xF0);c += (c >= 128 && c < 224) ? 4 : 12;
 328                 bcolor = (qbyte *) (&d_8to24table[c]);
 329                 shirtfullbright = c >= 224;
 330                 VectorScale(bcolor, (1.0f / 255.0f), shirtcolor);
 331         }
 332         else
 333         {
 334                 pantscolor[0] = pantscolor[1] = pantscolor[2] = shirtcolor[0] = shirtcolor[1] = shirtcolor[2] = 1;
 335                 pantsfullbright = shirtfullbright = false;
 336         }
 337
 338         if (ent->effects & EF_ADDITIVE)
 339         {
 340                 blendfunc1 = GL_SRC_ALPHA;
 341                 blendfunc2 = GL_ONE;
 342         }
 343         else if (ent->alpha != 1.0 || skinframe->fog != NULL)
 344         {
 345                 blendfunc1 = GL_SRC_ALPHA;
 346                 blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 347         }
 348         else
 349         {
 350                 blendfunc1 = GL_ONE;
 351                 blendfunc2 = GL_ZERO;
 352         }
 353
 354         memset(&m, 0, sizeof(m));
 355         m.blendfunc1 = blendfunc1;
 356         m.blendfunc2 = blendfunc2;
 357         m.numtriangles = model->numtris;
 358         m.numverts = model->numverts;
 359         m.matrix = ent->matrix;
 360         m.tex[0] = colormapped ? R_GetTexture(skinframe->base) : R_GetTexture(skinframe->merged);
 361         if (m.tex[0] && R_Mesh_Draw_GetBuffer(&m, true))
 362         {
 363                 blendfunc1 = GL_SRC_ALPHA;
 364                 blendfunc2 = GL_ONE;
 365                 c_alias_polys += m.numtriangles;
 366                 R_ModulateColors(aliasvertcolor, m.color, m.numverts, m.colorscale, m.colorscale, m.colorscale);
 367                 memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 368                 memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 369                 memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 370                 R_Mesh_Render();
 371         }
 372
 373         if (colormapped)
 374         {
 375                 if (skinframe->pants)
 376                 {
 377                         memset(&m, 0, sizeof(m));
 378                         m.blendfunc1 = blendfunc1;
 379                         m.blendfunc2 = blendfunc2;
 380                         m.numtriangles = model->numtris;
 381                         m.numverts = model->numverts;
 382                         m.matrix = ent->matrix;
 383                         m.tex[0] = R_GetTexture(skinframe->pants);
 384                         if (m.tex[0] && R_Mesh_Draw_GetBuffer(&m, true))
 385                         {
 386                                 blendfunc1 = GL_SRC_ALPHA;
 387                                 blendfunc2 = GL_ONE;
 388                                 c_alias_polys += m.numtriangles;
 389                                 if (pantsfullbright)
 390                                         R_FillColors(m.color, m.numverts, pantscolor[0] * m.colorscale, pantscolor[1] * m.colorscale, pantscolor[2] * m.colorscale, ent->alpha);
 391                                 else
 392                                         R_ModulateColors(aliasvertcolor, m.color, m.numverts, pantscolor[0] * m.colorscale, pantscolor[1] * m.colorscale, pantscolor[2] * m.colorscale);
 393                                 memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 394                                 memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 395                                 memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 396                                 R_Mesh_Render();
 397                         }
 398                 }
 399                 if (skinframe->shirt)
 400                 {
 401                         memset(&m, 0, sizeof(m));
 402                         m.blendfunc1 = blendfunc1;
 403                         m.blendfunc2 = blendfunc2;
 404                         m.numtriangles = model->numtris;
 405                         m.numverts = model->numverts;
 406                         m.matrix = ent->matrix;
 407                         m.tex[0] = R_GetTexture(skinframe->shirt);
 408                         if (m.tex[0] && R_Mesh_Draw_GetBuffer(&m, true))
 409                         {
 410                                 blendfunc1 = GL_SRC_ALPHA;
 411                                 blendfunc2 = GL_ONE;
 412                                 c_alias_polys += m.numtriangles;
 413                                 if (shirtfullbright)
 414                                         R_FillColors(m.color, m.numverts, shirtcolor[0] * m.colorscale, shirtcolor[1] * m.colorscale, shirtcolor[2] * m.colorscale, ent->alpha);
 415                                 else
 416                                         R_ModulateColors(aliasvertcolor, m.color, m.numverts, shirtcolor[0] * m.colorscale, shirtcolor[1] * m.colorscale, shirtcolor[2] * m.colorscale);
 417                                 memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 418                                 memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 419                                 memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 420                                 R_Mesh_Render();
 421                         }
 422                 }
 423         }
 424         if (skinframe->glow)
 425         {
 426                 memset(&m, 0, sizeof(m));
 427                 m.blendfunc1 = blendfunc1;
 428                 m.blendfunc2 = blendfunc2;
 429                 m.numtriangles = model->numtris;
 430                 m.numverts = model->numverts;
 431                 m.matrix = ent->matrix;
 432                 m.tex[0] = R_GetTexture(skinframe->glow);
 433                 if (m.tex[0] && R_Mesh_Draw_GetBuffer(&m, true))
 434                 {
 435                         blendfunc1 = GL_SRC_ALPHA;
 436                         blendfunc2 = GL_ONE;
 437                         c_alias_polys += m.numtriangles;
 438                         R_FillColors(m.color, m.numverts, (1 - fog) * m.colorscale, (1 - fog) * m.colorscale, (1 - fog) * m.colorscale, ent->alpha);
 439                         memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 440                         memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 441                         memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 442                         R_Mesh_Render();
 443                 }
 444         }
 445         if (fog)
 446         {
 447                 memset(&m, 0, sizeof(m));
 448                 m.blendfunc1 = GL_SRC_ALPHA;
 449                 m.blendfunc2 = GL_ONE;
 450                 m.numtriangles = model->numtris;
 451                 m.numverts = model->numverts;
 452                 m.matrix = ent->matrix;
 453                 m.tex[0] = R_GetTexture(skinframe->fog);
 454                 if (m.tex[0] && R_Mesh_Draw_GetBuffer(&m, true))
 455                 {
 456                         c_alias_polys += m.numtriangles;
 457                         R_FillColors(m.color, m.numverts, fogcolor[0] * fog * m.colorscale, fogcolor[1] * fog * m.colorscale, fogcolor[2] * fog * m.colorscale, ent->alpha);
 458                         memcpy(m.index, model->mdlmd2data_indices, m.numtriangles * sizeof(int[3]));
 459                         memcpy(m.vertex, aliasvert, m.numverts * sizeof(float[4]));
 460                         memcpy(m.texcoords[0], model->mdlmd2data_texcoords, m.numverts * sizeof(float[2]));
 461                         R_Mesh_Render();
 462                 }
 463         }
 464 }
 465
 466 int ZymoticLerpBones(int count, const zymbonematrix *bonebase, const frameblend_t *blend, const zymbone_t *bone)
 467 {
 468         int i;
 469         float lerp1, lerp2, lerp3, lerp4;
 470         zymbonematrix *out, rootmatrix, m;
 471         const zymbonematrix *bone1, *bone2, *bone3, *bone4;
 472
 473         /*
 474         // LordHavoc: combine transform from zym coordinate space to quake coordinate space with model to world transform matrix
 475         rootmatrix.m[0][0] = softwaretransform_matrix[0][1];
 476         rootmatrix.m[0][1] = -softwaretransform_matrix[0][0];
 477         rootmatrix.m[0][2] = softwaretransform_matrix[0][2];
 478         rootmatrix.m[0][3] = softwaretransform_matrix[0][3];
 479         rootmatrix.m[1][0] = softwaretransform_matrix[1][1];
 480         rootmatrix.m[1][1] = -softwaretransform_matrix[1][0];
 481         rootmatrix.m[1][2] = softwaretransform_matrix[1][2];
 482         rootmatrix.m[1][3] = softwaretransform_matrix[1][3];
 483         rootmatrix.m[2][0] = softwaretransform_matrix[2][1];
 484         rootmatrix.m[2][1] = -softwaretransform_matrix[2][0];
 485         rootmatrix.m[2][2] = softwaretransform_matrix[2][2];
 486         rootmatrix.m[2][3] = softwaretransform_matrix[2][3];
 487         */
 488         rootmatrix.m[0][0] = 1;
 489         rootmatrix.m[0][1] = 0;
 490         rootmatrix.m[0][2] = 0;
 491         rootmatrix.m[0][3] = 0;
 492         rootmatrix.m[1][0] = 0;
 493         rootmatrix.m[1][1] = 1;
 494         rootmatrix.m[1][2] = 0;
 495         rootmatrix.m[1][3] = 0;
 496         rootmatrix.m[2][0] = 0;
 497         rootmatrix.m[2][1] = 0;
 498         rootmatrix.m[2][2] = 1;
 499         rootmatrix.m[2][3] = 0;
 500
 501         bone1 = bonebase + blend[0].frame * count;
 502         lerp1 = blend[0].lerp;
 503         if (blend[1].lerp)
 504         {
 505                 bone2 = bonebase + blend[1].frame * count;
 506                 lerp2 = blend[1].lerp;
 507                 if (blend[2].lerp)
 508                 {
 509                         bone3 = bonebase + blend[2].frame * count;
 510                         lerp3 = blend[2].lerp;
 511                         if (blend[3].lerp)
 512                         {
 513                                 // 4 poses
 514                                 bone4 = bonebase + blend[3].frame * count;
 515                                 lerp4 = blend[3].lerp;
 516                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 517                                 {
 518                                         // interpolate matrices
 519                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3 + bone4->m[0][0] * lerp4;
 520                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3 + bone4->m[0][1] * lerp4;
 521                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3 + bone4->m[0][2] * lerp4;
 522                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3 + bone4->m[0][3] * lerp4;
 523                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3 + bone4->m[1][0] * lerp4;
 524                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3 + bone4->m[1][1] * lerp4;
 525                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3 + bone4->m[1][2] * lerp4;
 526                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3 + bone4->m[1][3] * lerp4;
 527                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3 + bone4->m[2][0] * lerp4;
 528                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3 + bone4->m[2][1] * lerp4;
 529                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3 + bone4->m[2][2] * lerp4;
 530                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3 + bone4->m[2][3] * lerp4;
 531                                         if (bone->parent >= 0)
 532                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 533                                         else
 534                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 535                                         bone1++;
 536                                         bone2++;
 537                                         bone3++;
 538                                         bone4++;
 539                                         bone++;
 540                                 }
 541                         }
 542                         else
 543                         {
 544                                 // 3 poses
 545                                 for (i = 0, out = zymbonepose;i < count;i++, out++)
 546                                 {
 547                                         // interpolate matrices
 548                                         m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2 + bone3->m[0][0] * lerp3;
 549                                         m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2 + bone3->m[0][1] * lerp3;
 550                                         m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2 + bone3->m[0][2] * lerp3;
 551                                         m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2 + bone3->m[0][3] * lerp3;
 552                                         m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2 + bone3->m[1][0] * lerp3;
 553                                         m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2 + bone3->m[1][1] * lerp3;
 554                                         m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2 + bone3->m[1][2] * lerp3;
 555                                         m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2 + bone3->m[1][3] * lerp3;
 556                                         m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2 + bone3->m[2][0] * lerp3;
 557                                         m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2 + bone3->m[2][1] * lerp3;
 558                                         m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2 + bone3->m[2][2] * lerp3;
 559                                         m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2 + bone3->m[2][3] * lerp3;
 560                                         if (bone->parent >= 0)
 561                                                 R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 562                                         else
 563                                                 R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 564                                         bone1++;
 565                                         bone2++;
 566                                         bone3++;
 567                                         bone++;
 568                                 }
 569                         }
 570                 }
 571                 else
 572                 {
 573                         // 2 poses
 574                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 575                         {
 576                                 // interpolate matrices
 577                                 m.m[0][0] = bone1->m[0][0] * lerp1 + bone2->m[0][0] * lerp2;
 578                                 m.m[0][1] = bone1->m[0][1] * lerp1 + bone2->m[0][1] * lerp2;
 579                                 m.m[0][2] = bone1->m[0][2] * lerp1 + bone2->m[0][2] * lerp2;
 580                                 m.m[0][3] = bone1->m[0][3] * lerp1 + bone2->m[0][3] * lerp2;
 581                                 m.m[1][0] = bone1->m[1][0] * lerp1 + bone2->m[1][0] * lerp2;
 582                                 m.m[1][1] = bone1->m[1][1] * lerp1 + bone2->m[1][1] * lerp2;
 583                                 m.m[1][2] = bone1->m[1][2] * lerp1 + bone2->m[1][2] * lerp2;
 584                                 m.m[1][3] = bone1->m[1][3] * lerp1 + bone2->m[1][3] * lerp2;
 585                                 m.m[2][0] = bone1->m[2][0] * lerp1 + bone2->m[2][0] * lerp2;
 586                                 m.m[2][1] = bone1->m[2][1] * lerp1 + bone2->m[2][1] * lerp2;
 587                                 m.m[2][2] = bone1->m[2][2] * lerp1 + bone2->m[2][2] * lerp2;
 588                                 m.m[2][3] = bone1->m[2][3] * lerp1 + bone2->m[2][3] * lerp2;
 589                                 if (bone->parent >= 0)
 590                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 591                                 else
 592                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 593                                 bone1++;
 594                                 bone2++;
 595                                 bone++;
 596                         }
 597                 }
 598         }
 599         else
 600         {
 601                 // 1 pose
 602                 if (lerp1 != 1)
 603                 {
 604                         // lerp != 1.0
 605                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 606                         {
 607                                 // interpolate matrices
 608                                 m.m[0][0] = bone1->m[0][0] * lerp1;
 609                                 m.m[0][1] = bone1->m[0][1] * lerp1;
 610                                 m.m[0][2] = bone1->m[0][2] * lerp1;
 611                                 m.m[0][3] = bone1->m[0][3] * lerp1;
 612                                 m.m[1][0] = bone1->m[1][0] * lerp1;
 613                                 m.m[1][1] = bone1->m[1][1] * lerp1;
 614                                 m.m[1][2] = bone1->m[1][2] * lerp1;
 615                                 m.m[1][3] = bone1->m[1][3] * lerp1;
 616                                 m.m[2][0] = bone1->m[2][0] * lerp1;
 617                                 m.m[2][1] = bone1->m[2][1] * lerp1;
 618                                 m.m[2][2] = bone1->m[2][2] * lerp1;
 619                                 m.m[2][3] = bone1->m[2][3] * lerp1;
 620                                 if (bone->parent >= 0)
 621                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &m.m[0][0], &out->m[0][0]);
 622                                 else
 623                                         R_ConcatTransforms(&rootmatrix.m[0][0], &m.m[0][0], &out->m[0][0]);
 624                                 bone1++;
 625                                 bone++;
 626                         }
 627                 }
 628                 else
 629                 {
 630                         // lerp == 1.0
 631                         for (i = 0, out = zymbonepose;i < count;i++, out++)
 632                         {
 633                                 if (bone->parent >= 0)
 634                                         R_ConcatTransforms(&zymbonepose[bone->parent].m[0][0], &bone1->m[0][0], &out->m[0][0]);
 635                                 else
 636                                         R_ConcatTransforms(&rootmatrix.m[0][0], &bone1->m[0][0], &out->m[0][0]);
 637                                 bone1++;
 638                                 bone++;
 639                         }
 640                 }
 641         }
 642         return true;
 643 }
 644
 645 void ZymoticTransformVerts(int vertcount, int *bonecounts, zymvertex_t *vert)
 646 {
 647         int c;
 648         float *out = aliasvert;
 649         zymbonematrix *matrix;
 650         while(vertcount--)
 651         {
 652                 c = *bonecounts++;
 653                 // FIXME: validate bonecounts at load time (must be >= 1)
 654                 // FIXME: need 4th component in origin, for how much of the translate to blend in
 655                 if (c == 1)
 656                 {
 657                         matrix = &zymbonepose[vert->bonenum];
 658                         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];
 659                         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];
 660                         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];
 661                         vert++;
 662                 }
 663                 else
 664                 {
 665                         VectorClear(out);
 666                         while(c--)
 667                         {
 668                                 matrix = &zymbonepose[vert->bonenum];
 669                                 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];
 670                                 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];
 671                                 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];
 672                                 vert++;
 673                         }
 674                 }
 675                 out += 4;
 676         }
 677 }
 678
 679 void ZymoticCalcNormals(int vertcount, int shadercount, int *renderlist)
 680 {
 681         int a, b, c, d;
 682         float *out, v1[3], v2[3], normal[3], s;
 683         int *u;
 684         // clear normals
 685         memset(aliasvertnorm, 0, sizeof(float) * vertcount * 3);
 686         memset(aliasvertusage, 0, sizeof(int) * vertcount);
 687         // parse render list and accumulate surface normals
 688         while(shadercount--)
 689         {
 690                 d = *renderlist++;
 691                 while (d--)
 692                 {
 693                         a = renderlist[0]*4;
 694                         b = renderlist[1]*4;
 695                         c = renderlist[2]*4;
 696                         v1[0] = aliasvert[a+0] - aliasvert[b+0];
 697                         v1[1] = aliasvert[a+1] - aliasvert[b+1];
 698                         v1[2] = aliasvert[a+2] - aliasvert[b+2];
 699                         v2[0] = aliasvert[c+0] - aliasvert[b+0];
 700                         v2[1] = aliasvert[c+1] - aliasvert[b+1];
 701                         v2[2] = aliasvert[c+2] - aliasvert[b+2];
 702                         CrossProduct(v1, v2, normal);
 703                         VectorNormalizeFast(normal);
 704                         // add surface normal to vertices
 705                         a = renderlist[0] * 3;
 706                         aliasvertnorm[a+0] += normal[0];
 707                         aliasvertnorm[a+1] += normal[1];
 708                         aliasvertnorm[a+2] += normal[2];
 709                         aliasvertusage[renderlist[0]]++;
 710                         a = renderlist[1] * 3;
 711                         aliasvertnorm[a+0] += normal[0];
 712                         aliasvertnorm[a+1] += normal[1];
 713                         aliasvertnorm[a+2] += normal[2];
 714                         aliasvertusage[renderlist[1]]++;
 715                         a = renderlist[2] * 3;
 716                         aliasvertnorm[a+0] += normal[0];
 717                         aliasvertnorm[a+1] += normal[1];
 718                         aliasvertnorm[a+2] += normal[2];
 719                         aliasvertusage[renderlist[2]]++;
 720                         renderlist += 3;
 721                 }
 722         }
 723         // FIXME: precalc this
 724         // average surface normals
 725         out = aliasvertnorm;
 726         u = aliasvertusage;
 727         while(vertcount--)
 728         {
 729                 if (*u > 1)
 730                 {
 731                         s = ixtable[*u];
 732                         out[0] *= s;
 733                         out[1] *= s;
 734                         out[2] *= s;
 735                 }
 736                 u++;
 737                 out += 3;
 738         }
 739 }
 740
 741 void R_DrawZymoticModelMeshCallback (const void *calldata1, int calldata2)
 742 {
 743         float fog;
 744         vec3_t diff;
 745         int i, *renderlist;
 746         zymtype1header_t *m;
 747         rtexture_t *texture;
 748         rmeshbufferinfo_t mbuf;
 749         const entity_render_t *ent = calldata1;
 750         int shadernum = calldata2;
 751
 752         // find the vertex index list and texture
 753         m = ent->model->zymdata_header;
 754         renderlist = (int *)(m->lump_render.start + (int) m);
 755         for (i = 0;i < shadernum;i++)
 756                 renderlist += renderlist[0] * 3 + 1;
 757         texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[shadernum];
 758
 759         fog = 0;
 760         if (fogenabled)
 761         {
 762                 VectorSubtract(ent->origin, r_origin, diff);
 763                 fog = DotProduct(diff,diff);
 764                 if (fog < 0.01f)
 765                         fog = 0.01f;
 766                 fog = exp(fogdensity/fog);
 767                 if (fog > 1)
 768                         fog = 1;
 769                 if (fog < 0.01f)
 770                         fog = 0;
 771                 // fog method: darken, additive fog
 772                 // 1. render model as normal, scaled by inverse of fog alpha (darkens it)
 773                 // 2. render fog as additive
 774         }
 775
 776         ZymoticLerpBones(m->numbones, (zymbonematrix *)(m->lump_poses.start + (int) m), ent->frameblend, (zymbone_t *)(m->lump_bones.start + (int) m));
 777         ZymoticTransformVerts(m->numverts, (int *)(m->lump_vertbonecounts.start + (int) m), (zymvertex_t *)(m->lump_verts.start + (int) m));
 778         ZymoticCalcNormals(m->numverts, m->numshaders, (int *)(m->lump_render.start + (int) m));
 779
 780         R_LightModel(ent, m->numverts, 1 - fog, 1 - fog, 1 - fog, false);
 781
 782         memset(&mbuf, 0, sizeof(mbuf));
 783         mbuf.numverts = m->numverts;
 784         mbuf.numtriangles = renderlist[0];
 785         if (ent->effects & EF_ADDITIVE)
 786         {
 787                 mbuf.blendfunc1 = GL_SRC_ALPHA;
 788                 mbuf.blendfunc2 = GL_ONE;
 789         }
 790         else if (ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 791         {
 792                 mbuf.blendfunc1 = GL_SRC_ALPHA;
 793                 mbuf.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 794         }
 795         else
 796         {
 797                 mbuf.blendfunc1 = GL_ONE;
 798                 mbuf.blendfunc2 = GL_ZERO;
 799         }
 800         mbuf.tex[0] = R_GetTexture(texture);
 801         mbuf.matrix = ent->matrix;
 802         if (R_Mesh_Draw_GetBuffer(&mbuf, true))
 803         {
 804                 c_alias_polys += mbuf.numtriangles;
 805                 memcpy(mbuf.index, renderlist + 1, mbuf.numtriangles * sizeof(int[3]));
 806                 memcpy(mbuf.vertex, aliasvert, mbuf.numverts * sizeof(float[4]));
 807                 R_ModulateColors(aliasvertcolor, mbuf.color, mbuf.numverts, mbuf.colorscale, mbuf.colorscale, mbuf.colorscale);
 808                 //memcpy(mbuf.color, aliasvertcolor, mbuf.numverts * sizeof(float[4]));
 809                 memcpy(mbuf.texcoords[0], (float *)(m->lump_texcoords.start + (int) m), mbuf.numverts * sizeof(float[2]));
 810                 R_Mesh_Render();
 811         }
 812
 813         if (fog)
 814         {
 815                 memset(&mbuf, 0, sizeof(mbuf));
 816                 mbuf.numverts = m->numverts;
 817                 mbuf.numtriangles = renderlist[0];
 818                 mbuf.blendfunc1 = GL_SRC_ALPHA;
 819                 mbuf.blendfunc2 = GL_ONE_MINUS_SRC_ALPHA;
 820                 // FIXME: need alpha mask for fogging...
 821                 //mbuf.tex[0] = R_GetTexture(texture);
 822                 mbuf.matrix = ent->matrix;
 823                 if (R_Mesh_Draw_GetBuffer(&mbuf, false))
 824                 {
 825                         c_alias_polys += mbuf.numtriangles;
 826                         memcpy(mbuf.index, renderlist + 1, mbuf.numtriangles * sizeof(int[3]));
 827                         memcpy(mbuf.vertex, aliasvert, mbuf.numverts * sizeof(float[4]));
 828                         R_FillColors(mbuf.color, mbuf.numverts, fogcolor[0] * mbuf.colorscale, fogcolor[1] * mbuf.colorscale, fogcolor[2] * mbuf.colorscale, ent->alpha * fog);
 829                         //memcpy(mbuf.texcoords[0], (float *)(m->lump_texcoords.start + (int) m), mbuf.numverts * sizeof(float[2]));
 830                         R_Mesh_Render();
 831                 }
 832         }
 833 }
 834
 835 void R_DrawZymoticModel (entity_render_t *ent)
 836 {
 837         int i;
 838         zymtype1header_t *m;
 839         rtexture_t *texture;
 840
 841         if (ent->alpha < (1.0f / 64.0f))
 842                 return; // basically completely transparent
 843
 844         c_models++;
 845
 846         m = ent->model->zymdata_header;
 847         for (i = 0;i < m->numshaders;i++)
 848         {
 849                 texture = ((rtexture_t **)(m->lump_shaders.start + (int) m))[i];
 850                 if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_TextureHasAlpha(texture))
 851                         R_MeshQueue_AddTransparent(ent->origin, R_DrawZymoticModelMeshCallback, ent, i);
 852                 else
 853                         R_MeshQueue_Add(R_DrawZymoticModelMeshCallback, ent, i);
 854         }
 855 }
 856
 857 void R_DrawQ1Q2AliasModel(entity_render_t *ent)
 858 {
 859         if (ent->alpha < (1.0f / 64.0f))
 860                 return; // basically completely transparent
 861
 862         c_models++;
 863
 864         if (ent->effects & EF_ADDITIVE || ent->alpha != 1.0 || R_FetchSkinFrame(ent)->fog != NULL)
 865                 R_MeshQueue_AddTransparent(ent->origin, R_DrawQ1Q2AliasModelCallback, ent, 0);
 866         else
 867                 R_MeshQueue_Add(R_DrawQ1Q2AliasModelCallback, ent, 0);
 868 }
 869