The Ecere SDK - sdk/blob - ecere/src/gfx/3D/models/Object3DSFormat.ec

   1 namespace gfx3D::models;
   2
   3 import "Object"
   4
   5 #define MAXNAMELEN   64
   6
   7 // RGB Chunks
   8 #define RGB_FLOAT             0x0010
   9 #define RGB_BYTE              0x0011
  10 #define RGB_BYTE_GAMMA        0x0012
  11 #define RGB_FLOAT_GAMMA       0x0013
  12
  13 // Amount Of Chunks
  14 #define AMOUNT_OF             0x0030
  15
  16 #define MAIN3DS               0x4D4D
  17 #define EDIT3DS               0x3D3D
  18 #define EDIT_AMBIENT          0x2100
  19 #define EDIT_MATERIAL         0xAFFF
  20 #define EDIT_OBJECT           0x4000
  21 #define OBJ_HIDDEN            0x4010
  22 #define OBJ_TRIMESH           0x4100
  23 #define OBJ_LIGHT             0x4600
  24 #define OBJ_CAMERA            0x4700
  25
  26 // Triangular Mesh Chunks
  27 #define TRI_VERTEXL           0x4110
  28 #define TRI_FACEL1            0x4120
  29 #define TRI_MATERIAL          0x4130
  30 #define TRI_MAPPINGCOORS      0x4140
  31 #define TRI_SMOOTHING         0x4150
  32 #define TRI_LOCAL             0x4160
  33
  34 // Light Chunks
  35 #define LIT_SPOT              0x4610
  36 #define LIT_ONOFF             0x4620
  37 #define LIT_ATTENUATION       0x4625
  38 #define LIT_START             0x4659
  39 #define LIT_END               0x465A
  40 #define LIT_MULTIPLIER        0x465B
  41
  42 // Camera Chunks
  43 #define CAM_SEECONE           0x4710
  44 #define CAM_RANGES            0x4720
  45
  46 // Material Chunks
  47 #define MAT_NAME              0xA000
  48 #define MAT_AMBIENT           0xA010
  49 #define MAT_DIFFUSE           0xA020
  50 #define MAT_SPECULAR          0xA030
  51 #define MAT_SHININESS         0xA040
  52 #define MAT_SHINSTRENGTH      0xA041
  53 #define MAT_SHIN3PC           0xA042
  54 #define MAT_TRANSPARENCY      0xA050
  55 #define MAT_XPFALL            0xA052
  56 #define MAT_REFBLUR           0xA053
  57 #define MAT_SELFILLUM         0xA080
  58 #define MAT_DOUBLESIDED       0xA081
  59 #define MAT_ADDITIVE          0xA083
  60 #define MAT_SELFILPCT         0xA084
  61 #define MAT_WIRE              0xA085
  62 #define MAT_SUPERSMP          0xA086
  63 #define MAT_WIRETHICKNESS     0xA087
  64 #define MAT_FACEMAP           0xA088
  65 #define MAT_XPFALLIN          0xA08A
  66 #define MAT_PHONG             0xA08C
  67 #define MAT_WIREABS           0xA08E
  68 #define MAT_SHADING           0xA100
  69 #define MAT_MAPTEXTURE1       0xA200
  70 #define MAT_SPECULARMAP       0xA204
  71 #define MAT_MAPOPACITY        0xA210
  72 #define MAT_REFLECTIONMAP     0xA220
  73 #define MAT_BUMPMAP           0xA230
  74
  75 // Map Chunks
  76 #define MAP_FILENAME          0xA300
  77
  78 #define MAT_SHININESSMAP      0xA33C
  79 #define MAT_EMISSIVEMAP       0xA33D
  80 #define MAP_OPTIONS           0xA351
  81 #define MAP_1_U_SCALE   0xA354
  82 #define MAP_1_V_SCALE   0xA356
  83 #define MAP_U_OFFSET    0xA358
  84 #define MAP_V_OFFSET    0xA35A
  85 #define MAP_ROTATION    0xA35C
  86
  87 #define MAP_OPTIONS_DECAL           0x0001      // (related to MAP_OPTIONS_DONTTILE)
  88 #define MAP_OPTIONS_MIRROR          0x0002
  89 #define MAP_OPTIONS_NEGATIVE        0x0008
  90 #define MAP_OPTIONS_DONTTILE        0x0010
  91 #define MAP_OPTIONS_SUMMEDFILTERING 0x0020
  92 #define MAP_OPTIONS_USEALPHA        0x0040
  93 #define MAP_OPTIONS_LUMORALPHATINT  0x0080
  94 #define MAP_OPTIONS_IGNOREALPHA     0x0100
  95 #define MAP_OPTIONS_RGBTINT         0x0200
  96
  97 #define MAP_FILTERBLUR        0xA353
  98 #define MAP_1_U_SCALE         0xA354
  99 #define MAP_1_V_SCALE         0xA356
 100 #define MAP_U_OFFSET          0xA358
 101 #define MAP_V_OFFSET          0xA35A
 102 #define MAP_ROTATION          0xA35C
 103
 104 #define MAP_LUMTINT1          0xA360
 105 #define MAP_LUMTINT2          0xA362
 106
 107 #define MAP_TINTR             0xA364
 108 #define MAP_TINTG             0xA366
 109 #define MAP_TINTB             0xA368
 110
 111 // Keyframer Chunks
 112 #define KEYFRAME3DS           0xB000
 113 #define FRM_AMBIENT           0xB001
 114 #define FRM_MESHINFO          0xB002
 115 #define FRM_CAMERA            0xB003
 116 #define FRM_CAMERATARGET      0xB004
 117 #define FRM_OMNILIGHT         0xB005
 118 #define FRM_SPOTLIGHTTARGET   0xB006
 119 #define FRM_SPOTLIGHT         0xB007
 120 #define FRM_FRAMES            0xB008
 121 #define FRM_PARAM             0xB010
 122 #define FRM_DUMMYNAME         0xB011
 123 #define FRM_PIVOT             0xB013
 124 #define FRM_TRACKPOS          0xB020
 125 #define FRM_TRACKROT          0xB021
 126 #define FRM_TRACKSCALE        0xB022
 127 #define FRM_TRACKFOV          0xB023
 128 #define FRM_TRACKROLL         0xB024
 129 #define FRM_TRACKCOLOR        0xB025
 130 #define FRM_TRACKMORPH        0xB026   // What does this do?
 131 #define FRM_TRACKHOTSPOT      0xB027
 132 #define FRM_TRACKFALLOFF      0xB028
 133 #define FRM_TRACKHIDE         0xB029
 134 #define FRM_HIERARCHY         0xB030
 135
 136 typedef struct FileInfo FileInfo;
 137
 138 typedef struct
 139 {
 140    uint16 indices[3];
 141    uint16 oldIndices[3];
 142    uint smoothGroups;
 143    bool done:1;
 144 } Face;
 145
 146 struct FileInfo
 147 {
 148    File f;
 149    DisplaySystem displaySystem;
 150    Object rootObject;
 151
 152    uint16 chunkId;
 153    uint pos, end;
 154
 155    FileInfo * parent;
 156    int nFaces;
 157    Face * faces;
 158    char textureDirectory[MAX_DIRECTORY];
 159 };
 160
 161 #define SWAP_WORD(word) (((unsigned short)(word) & 0x00ff) << 8) \
 162                       | (((unsigned short)(word) & 0xff00) >> 8)
 163
 164 #define SWAP_DWORD(dword) ((((unsigned int)(dword) & 0x000000ff) << 24) \
 165                          | (((unsigned int)(dword) & 0x0000ff00) <<  8) \
 166                          | (((unsigned int)(dword) & 0x00ff0000) >>  8) \
 167                          | (((unsigned int)(dword) & 0xff000000) >> 24))
 168
 169 #ifndef __BIG_ENDIAN__
 170 #define BIGENDSWAP_WORD(word)
 171 #define BIGENDSWAP_DWORD(dword)
 172 #else
 173 #define BIGENDSWAP_WORD(word)      (*(uint16 *)(&(word)))  = SWAP_WORD((*(uint16 *)(&(word))));
 174 #define BIGENDSWAP_DWORD(dword)    (*(uint *)(&(dword))) = SWAP_DWORD((*(uint *)(&(dword))));
 175 #endif
 176
 177 // Zero Terminated String
 178 static int ReadASCIIZ(File f, char ** string)
 179 {
 180    // *** Read String ***
 181    int c;
 182    char temp[1024] = "";
 183    for(c=0; c<1024;)
 184    {
 185       f.Getc(&temp[c]);
 186       if(!temp[c++]) break;
 187    }
 188    *string = new char[c];
 189    if(*string)
 190       strcpy(*string, temp);
 191    return c;
 192 }
 193
 194 static float ReadFloat(File f)
 195 {
 196    float floatValue;
 197    f.Read(&floatValue, sizeof(float), 1);
 198    BIGENDSWAP_DWORD(floatValue);
 199    return floatValue;
 200 }
 201
 202 static uint16 ReadWORD(File f)
 203 {
 204    uint16 wordValue;
 205    f.Read(&wordValue, sizeof(uint16), 1);
 206    BIGENDSWAP_WORD(wordValue);
 207    return wordValue;
 208 }
 209
 210 static uint ReadDWORD(File f)
 211 {
 212    uint dwordValue;
 213    f.Read(&dwordValue, sizeof(uint), 1);
 214    BIGENDSWAP_DWORD(dwordValue);
 215    return dwordValue;
 216 }
 217
 218 // Sub Chunks
 219 static bool ReadChunks(bool (* chunkParser)(FileInfo * info, void * data), FileInfo * info, void * data)
 220 {
 221    for(;info->pos < info->end;)
 222    {
 223       FileInfo childInfo = *info;
 224       uint length;
 225
 226       childInfo.parent = info;
 227
 228       info->f.Seek(info->pos, start);
 229       childInfo.chunkId = ReadWORD(info->f);
 230       length = ReadDWORD(info->f);
 231
 232       childInfo.pos += sizeof(uint16) + sizeof(uint);
 233       childInfo.end = info->pos + length;
 234
 235       if(!chunkParser(&childInfo, data))
 236          return false;
 237
 238       info->pos = childInfo.end;
 239    }
 240    return true;
 241 }
 242
 243 // General Chunks
 244 static bool ReadRGB(FileInfo * info, ColorRGB * rgb)
 245 {
 246    if(info->chunkId == RGB_BYTE || info->chunkId == RGB_BYTE_GAMMA)
 247    {
 248       byte value;
 249       info->f.Getc(&value); rgb->r = value / 255.0f;
 250       info->f.Getc(&value); rgb->g = value / 255.0f;
 251       info->f.Getc(&value); rgb->b = value / 255.0f;
 252    }
 253    else if(info->chunkId == RGB_FLOAT || info->chunkId == RGB_FLOAT_GAMMA)
 254    {
 255       rgb->r = ReadFloat(info->f);
 256       rgb->g = ReadFloat(info->f);
 257       rgb->b = ReadFloat(info->f);
 258    }
 259    return true;
 260 }
 261
 262 static bool Read3DVertex(File f, Vector3Df vertex)
 263 {
 264    vertex.x = ReadFloat(f);
 265    vertex.y = ReadFloat(f);
 266    vertex.z = ReadFloat(f);
 267    return true;
 268 }
 269
 270 static bool ReadAmountOf(FileInfo * info, uint16 * amountOf)
 271 {
 272    if(info->chunkId == AMOUNT_OF)
 273       *amountOf = ReadWORD(info->f);
 274    return true;
 275 }
 276
 277 typedef struct
 278 {
 279    uint smoothGroups;
 280    int index;
 281 } VertexConfig;
 282
 283 typedef struct
 284 {
 285    int numConfig;
 286    VertexConfig * config;
 287 } VertexConfigList;
 288
 289 static void ComputeNormals(Mesh mesh, FileInfo * info, Object object)
 290 {
 291    int c;
 292    Face * faces = info->faces;
 293    //int nFaces = info->nFaces;
 294    int nVertices = mesh.nVertices;
 295    int index;
 296    int nNewVertices;
 297    int * numShared;
 298
 299    VertexConfigList * configLists = new0 VertexConfigList[nVertices];
 300
 301    nNewVertices = nVertices;
 302    for(c = 0; c<info->nFaces; c++)
 303    {
 304       Face * face = &faces[c];
 305       int i;
 306
 307       for(i = 0; i<3; i++)
 308       {
 309          int index = face->indices[i];
 310          int v;
 311          VertexConfigList * configList = &configLists[index];
 312          VertexConfig * config = null;
 313          for(v = 0; v<configList->numConfig; v++)
 314          {
 315             uint smoothGroups = configList->config[v].smoothGroups;
 316             if(smoothGroups == face->smoothGroups)
 317             {
 318                config = &configList->config[v];
 319                break;
 320             }
 321             else if(smoothGroups && face->smoothGroups)
 322             {
 323                int g;
 324                for(g = 0; g<32; g++)
 325                   if(smoothGroups & (1<<g) && face->smoothGroups & (1<<g))
 326                   {
 327                      config = &configList->config[v];
 328                      config->smoothGroups |= face->smoothGroups;
 329                      break;
 330                   }
 331             }
 332          }
 333
 334          if(!config || !face->smoothGroups)
 335          {
 336             // Duplicate the vertex and make the face use it
 337             if(configList->numConfig)
 338                index = nNewVertices++;
 339             face->indices[i] = (uint16)index;
 340             if(!config)
 341             {
 342                configList->config = renew configList->config VertexConfig[configList->numConfig + 1];
 343                config = &configList->config[configList->numConfig++];
 344                config->index = index;
 345                config->smoothGroups = face->smoothGroups;
 346             }
 347          }
 348          else
 349          {
 350             face->indices[i] = (uint16)config->index;
 351          }
 352       }
 353    }
 354
 355    // Allocate some extra vertices
 356    {
 357       Vector3Df * oldVertices = mesh.vertices;
 358       Pointf * oldTexCoords = mesh.texCoords;
 359
 360       *((void **)&mesh.vertices) = null;
 361       *((void **)&mesh.texCoords) = null;
 362       *((int *)&mesh.nVertices) = 0;
 363
 364       mesh.Allocate( { vertices = true, normals = true, texCoords1 = oldTexCoords ? true : false }, nNewVertices, info->displaySystem);
 365
 366       // Fill in the new vertices
 367       for(index = 0; index<nVertices; index++)
 368       {
 369          int v;
 370          VertexConfigList * configList = &configLists[index];
 371          for(v = 0; v<configList->numConfig; v++)
 372          {
 373             VertexConfig * config = &configList->config[v];
 374             Vector3Df * normal;
 375             if(config->smoothGroups)
 376             {
 377                //if(v > 0)
 378                {
 379                   // Duplicate vertex
 380                   mesh.vertices[config->index] = oldVertices[index]; //mesh.vertices[index];
 381                   if(mesh.texCoords)
 382                      mesh.texCoords[config->index] = oldTexCoords[index]; //mesh.texCoords[index];
 383                }
 384             }
 385             else
 386             {
 387                mesh.vertices[config->index] = oldVertices[index];
 388                if(mesh.texCoords)
 389                   mesh.texCoords[config->index] = oldTexCoords[index]; //mesh.texCoords[index];
 390             }
 391             normal = &mesh.normals[config->index];
 392             *normal = { 0,0,0 };
 393          }
 394       }
 395
 396       delete oldVertices;
 397       delete oldTexCoords;
 398    }
 399
 400    numShared = new0 int[nNewVertices];
 401
 402    for(c = 0; c<info->nFaces; c++)
 403    {
 404       Face * face = &faces[c];
 405       int i;
 406       Plane plane;
 407       Vector3Df planeNormal;
 408       plane.FromPointsf(mesh.vertices[face->oldIndices[2]],
 409                        mesh.vertices[face->oldIndices[1]],
 410                        mesh.vertices[face->oldIndices[0]]);
 411       planeNormal = { (float)plane.normal.x, (float)plane.normal.y, (float)plane.normal.z };
 412       if(face->smoothGroups)
 413       {
 414          for(i = 0; i<3; i++)
 415          {
 416             int index = face->indices[i];
 417             Vector3Df * normal = &mesh.normals[index];
 418             normal->Add(normal, planeNormal);
 419             numShared[index]++;
 420          }
 421       }
 422       else
 423       {
 424          for(i = 0; i<3; i++)
 425          {
 426             int index = face->oldIndices[i];
 427             int newIndex = face->indices[i];
 428             mesh.normals[newIndex] = planeNormal;
 429             // Duplicate vertex
 430             if(index != newIndex)
 431             {
 432                mesh.vertices[newIndex] = mesh.vertices[index];
 433                if(mesh.texCoords)
 434                   mesh.texCoords[newIndex] = mesh.texCoords[index];
 435             }
 436             numShared[newIndex]++;
 437          }
 438       }
 439    }
 440    for(index = 0; index<nNewVertices; index++)
 441    {
 442       Vector3Df * normal = &mesh.normals[index];
 443       normal->Scale(normal, 1.0f / numShared[index]);
 444       normal->Normalize(normal);
 445    }
 446
 447    mesh.Unlock({ normals = true });
 448
 449    // Free all the temporary stuff
 450    if(configLists)
 451    {
 452       for(index = 0; index < nVertices; index++)
 453       {
 454          VertexConfigList * configList = &configLists[index];
 455          if(configList->config) delete configList->config;
 456       }
 457       delete configLists;
 458    }
 459    delete numShared;
 460 }
 461
 462 // Meshes
 463 static bool ReadSmoothing(FileInfo * info, Object object)
 464 {
 465    Mesh mesh = object.mesh;
 466    switch(info->chunkId)
 467    {
 468       case TRI_SMOOTHING:
 469       {
 470          int c;
 471          for(c = 0; c<info->nFaces; c++)
 472             info->faces[c].smoothGroups = ReadDWORD(info->f);
 473          break;
 474       }
 475    }
 476    return true;
 477 }
 478
 479 static bool ReadFacesListChunks(FileInfo * info, Object object)
 480 {
 481    DisplaySystem displaySystem = info->displaySystem;
 482    Mesh mesh = object.mesh;
 483    switch(info->chunkId)
 484    {
 485       case TRI_MATERIAL:
 486       {
 487          char * name;
 488          Material mat;
 489
 490          ReadASCIIZ(info->f, &name);
 491          mat = displaySystem.GetMaterial(name);
 492          if(mat)
 493          {
 494             if(mat.flags.translucent)
 495             {
 496                int c;
 497                uint16 count = ReadWORD(info->f);
 498                mesh.primitives = renew mesh.primitives PrimitiveSingle[mesh.nPrimitives + count];
 499                for(c = 0; c<count; c++)
 500                {
 501                   uint16 face = ReadWORD(info->f);
 502                   PrimitiveSingle * triangle = &mesh.primitives[mesh.nPrimitives++];
 503
 504                   if(mesh.AllocatePrimitive(triangle, triangles, 3))
 505                   {
 506                      triangle->indices[0] = info->faces[face].indices[0];
 507                      triangle->indices[1] = info->faces[face].indices[1];
 508                      triangle->indices[2] = info->faces[face].indices[2];
 509                      triangle->middle.Add(mesh.vertices[triangle->indices[0]], mesh.vertices[triangle->indices[1]]);
 510                      triangle->middle.Add(triangle->middle, mesh.vertices[triangle->indices[2]]);
 511                      triangle->plane.FromPointsf(
 512                         mesh.vertices[triangle->indices[2]],
 513                         mesh.vertices[triangle->indices[1]],
 514                         mesh.vertices[triangle->indices[0]]);
 515
 516                      mesh.UnlockPrimitive(triangle);
 517                   }
 518                   triangle->middle.x /= 3;
 519                   triangle->middle.y /= 3;
 520                   triangle->middle.z /= 3;
 521
 522                   triangle->material = mat;
 523
 524                   info->faces[face].done = (byte)bool::true;
 525                }
 526                object.flags.translucent = true;
 527             }
 528             else
 529             {
 530                PrimitiveGroup group;
 531                uint16 count = ReadWORD(info->f);
 532                group = mesh.AddPrimitiveGroup(triangles, count * 3);
 533                if(group)
 534                {
 535                   int c;
 536                   group.material = mat;
 537                   for(c = 0; c<count; c++)
 538                   {
 539                      uint16 face = ReadWORD(info->f);
 540                      if(object.flags.flipWindings)
 541                      {
 542                         group.indices[c*3]   = info->faces[face].indices[2];
 543                         group.indices[c*3+1] = info->faces[face].indices[1];
 544                         group.indices[c*3+2] = info->faces[face].indices[0];
 545                      }
 546                      else
 547                      {
 548                         group.indices[c*3]   = info->faces[face].indices[0];
 549                         group.indices[c*3+1] = info->faces[face].indices[1];
 550                         group.indices[c*3+2] = info->faces[face].indices[2];
 551                      }
 552                      info->faces[face].done = (byte)bool::true;
 553                   }
 554                   mesh.UnlockPrimitiveGroup(group);
 555                }
 556             }
 557          }
 558          delete name;
 559          break;
 560       }
 561    }
 562    return true;
 563 }
 564
 565 static bool ReadTriMesh(FileInfo * info, Object object)
 566 {
 567    Mesh mesh = object.mesh;
 568    switch(info->chunkId)
 569    {
 570       case TRI_VERTEXL:
 571       {
 572          int c;
 573          uint16 nVertices = ReadWORD(info->f);
 574          //if(eMesh_Allocate(mesh, MESH_VERTICES, nVertices, info->display->displaySystem))
 575          *((int *) &mesh.nVertices) = nVertices;
 576          *((Vector3Df **)&mesh.vertices) = new Vector3Df[mesh.nVertices];
 577          if(mesh.vertices)
 578          {
 579             for(c = 0; c<mesh.nVertices; c++)
 580             {
 581                Vector3Df vertex;
 582                Read3DVertex(info->f, vertex);
 583                mesh.vertices[c].x = vertex.x;
 584                mesh.vertices[c].y =-vertex.z;
 585                mesh.vertices[c].z = vertex.y;
 586             }
 587          }
 588          else
 589             return false;
 590          break;
 591       }
 592       case TRI_MAPPINGCOORS:
 593       {
 594          int c;
 595          uint16 count = ReadWORD(info->f);
 596          count = (uint16)Min(mesh.nVertices, count);
 597
 598          //if(eMesh_Allocate(mesh, MESH_TEXCOORDS1, mesh.nVertices, null /*info->display->displaySystem*/))
 599          *((Pointf **)&mesh.texCoords) = new Pointf[mesh.nVertices];
 600          mesh.flags.texCoords1 = true;
 601          if(mesh.texCoords)
 602          {
 603             for(c = 0; c<count; c++)
 604             {
 605                mesh.texCoords[c].x = ReadFloat(info->f);
 606                mesh.texCoords[c].y = 1.0f - ReadFloat(info->f);
 607             }
 608          }
 609          else
 610             return false;
 611          break;
 612       }
 613       case TRI_FACEL1:
 614       {
 615          int c;
 616          uint16 nFaces = 0;
 617          int count;
 618          uint pos;
 619
 620          info->nFaces = nFaces = ReadWORD(info->f);
 621          info->pos += sizeof(uint16);
 622
 623          info->faces = new0 Face[nFaces];
 624          for(c = 0; c<nFaces; c++)
 625          {
 626             int i;
 627             for(i = 0; i<3; i++)
 628             {
 629                info->faces[c].oldIndices[i] =
 630                info->faces[c].indices[i] = ReadWORD(info->f);
 631             }
 632             ReadWORD(info->f);
 633             info->pos += 4*sizeof(uint16);
 634          }
 635          pos = info->pos;
 636          ReadChunks(ReadSmoothing, info, object);
 637          info->pos = pos;
 638
 639          ComputeNormals(mesh, info, object);
 640
 641          ReadChunks(ReadFacesListChunks, info, object);
 642
 643          // Add faces without a material all together
 644          count = 0;
 645          for(c = 0; c<nFaces; c++)
 646             if(!info->faces[c].done)
 647                count++;
 648          if(count)
 649          {
 650             PrimitiveGroup group = mesh.AddPrimitiveGroup(triangles, count * 3);
 651             if(group)
 652             {
 653                for(c = 0; c<nFaces; c++)
 654                   if(!info->faces[c].done)
 655                   {
 656                      group.indices[c*3]   = info->faces[c].indices[0];
 657                      group.indices[c*3+1] = info->faces[c].indices[1];
 658                      group.indices[c*3+2] = info->faces[c].indices[2];
 659                   }
 660                mesh.UnlockPrimitiveGroup(group);
 661             }
 662          }
 663
 664          delete info->faces;
 665
 666          /*
 667          mesh.ComputeNormals();
 668
 669          if(object.flags.flipWindings)
 670          {
 671             if(mesh.Lock({ normals = true }))
 672             {
 673                for(c = 0; c<mesh.nVertices; c++)
 674                {
 675                   mesh.normals[c].x *= -1;
 676                   mesh.normals[c].y *= -1;
 677                   mesh.normals[c].z *= -1;
 678                }
 679                mesh.Unlock({ normals = true });
 680             }
 681          }*/
 682
 683          // could use this instead? : mesh.ApplyTranslucency(object);
 684          break;
 685       }
 686       case TRI_LOCAL:
 687       {
 688          int c;
 689          Vector3Df xAxis, yAxis, zAxis, center;
 690          Vector3Df scaling;
 691          Vector3Df orth;
 692          Matrix inverse/*, source = { 0 }*/;
 693
 694          // Local Axes
 695          Read3DVertex(info->f, xAxis);
 696          Read3DVertex(info->f, yAxis);
 697          Read3DVertex(info->f, zAxis);
 698          Read3DVertex(info->f, center);
 699
 700          scaling.x = (float)sqrt(xAxis.x * xAxis.x + xAxis.y * xAxis.y + xAxis.z * xAxis.z);
 701          scaling.y = (float)sqrt(zAxis.x * zAxis.x + zAxis.y * zAxis.y + zAxis.z * zAxis.z);
 702          scaling.z = (float)sqrt(yAxis.x * yAxis.x + yAxis.y * yAxis.y + yAxis.z * yAxis.z);
 703
 704          // Inverse of this doesn't give a good enough result with small numbers (bellrang.3ds)
 705 /*
 706          source.m[3][3] = 1;
 707          source.m[0][0] = xAxis.x; source.m[0][1]  = -xAxis.z;  source.m[0][2] = xAxis.y;
 708          source.m[1][0] =-zAxis.x; source.m[1][1]  = zAxis.z;  source.m[1][2] = -zAxis.y;
 709          source.m[2][0] = yAxis.x; source.m[2][1]  = -yAxis.z;  source.m[2][2] = yAxis.y;
 710          source.m[3][0] = center.x; source.m[3][1] = -center.z; source.m[3][2] = center.y;
 711
 712          inverse.Inverse(source);
 713 */
 714
 715          object.flags.flipWindings = false;
 716
 717          xAxis.Normalize(xAxis);
 718          yAxis.Normalize(yAxis);
 719          zAxis.Normalize(zAxis);
 720
 721          orth.CrossProduct(yAxis, zAxis);
 722          if((Abs(orth.x) > 0.00001 && Sgn(orth.x) != Sgn(xAxis.x)) ||
 723             (Abs(orth.y) > 0.00001 && Sgn(orth.y) != Sgn(xAxis.y)) ||
 724             (Abs(orth.z) > 0.00001 && Sgn(orth.z) != Sgn(xAxis.z)))
 725          {
 726             object.flags.flipWindings ^= true;
 727             xAxis = orth;
 728          }
 729
 730          orth.CrossProduct(zAxis, xAxis);
 731          if((Abs(orth.x) > 0.00001 && Sgn(orth.x) != Sgn(yAxis.x)) ||
 732             (Abs(orth.y) > 0.00001 && Sgn(orth.y) != Sgn(yAxis.y)) ||
 733             (Abs(orth.z) > 0.00001 && Sgn(orth.z) != Sgn(yAxis.z)))
 734          {
 735             object.flags.flipWindings ^= true;
 736             yAxis = orth;
 737          }
 738
 739          orth.CrossProduct(xAxis, yAxis);
 740          if((Abs(orth.x) > 0.00001 && Sgn(orth.x) != Sgn(zAxis.x)) ||
 741             (Abs(orth.y) > 0.00001 && Sgn(orth.y) != Sgn(zAxis.y)) ||
 742             (Abs(orth.z) > 0.00001 && Sgn(orth.z) != Sgn(zAxis.z)))
 743          {
 744             object.flags.flipWindings ^= true;
 745             zAxis = orth;
 746          }
 747
 748          {
 749             Matrix rotation;
 750
 751             rotation.m[0][0] = xAxis.x;
 752             rotation.m[0][1] =-xAxis.z;
 753             rotation.m[0][2] = xAxis.y;
 754             rotation.m[0][3] = 0;
 755             rotation.m[1][0] =-zAxis.x;
 756             rotation.m[1][1] = zAxis.z;
 757             rotation.m[1][2] =-zAxis.y;
 758             rotation.m[1][3] = 0;
 759             rotation.m[2][0] = yAxis.x;
 760             rotation.m[2][1] =-yAxis.z;
 761             rotation.m[2][2] = yAxis.y;
 762             rotation.m[2][3] = 0;
 763             rotation.m[3][0] = 0;
 764             rotation.m[3][1] = 0;
 765             rotation.m[3][2] = 0;
 766             rotation.m[3][3] = 1;
 767
 768             {
 769                Matrix temp, temp2;
 770                inverse.Transpose(rotation);
 771                temp.Identity();
 772                temp.Translate(-center.x, center.z, -center.y);
 773                temp2.Multiply(temp, inverse);
 774                temp2.Scale(1.0f/scaling.x, 1.0f/scaling.y, 1.0f/scaling.z);
 775                inverse = temp2;
 776             }
 777
 778             object.transform.scaling = scaling;
 779             // TODO: Improve language to support deep properties on non constant functions
 780             // object.transform.orientation.RotationMatrix(rotation);
 781             {
 782                Quaternion orientation;
 783                orientation.RotationMatrix(rotation);
 784                object.transform.orientation = orientation;
 785             }
 786             object.transform.position = { center.x, -center.z, center.y };
 787          }
 788
 789          // Localize All Vertices
 790          for(c = 0; c<mesh.nVertices; c++)
 791          {
 792             Vector3Df vertex = mesh.vertices[c];
 793
 794             mesh.vertices[c].MultMatrix(vertex, inverse);
 795
 796             mesh.vertices[c].x -= object.pivot.x;
 797             mesh.vertices[c].y -= object.pivot.y;
 798             mesh.vertices[c].z -= object.pivot.z;
 799          }
 800          break;
 801       }
 802    }
 803    return true;
 804 }
 805
 806 // Material Library
 807 static bool ReadMap(FileInfo * info, Material mat)
 808 {
 809    DisplaySystem displaySystem = info->displaySystem;
 810    switch(info->chunkId)
 811    {
 812       case MAP_FILENAME:
 813       {
 814          char * name;
 815          char location[MAX_LOCATION];
 816
 817          ReadASCIIZ(info->f, &name);
 818          strlwr(name);
 819
 820          strcpy(location, info->textureDirectory);
 821          PathCat(location, name);
 822
 823          if(info->parent->chunkId == MAT_BUMPMAP)
 824          {
 825             // To avoid messing up the diffuse texture if same bitmap is specified by mistake...
 826             char bumpName[MAX_FILENAME];
 827             strcpy(bumpName, "BUMP:");
 828             strcat(bumpName, name);
 829             mat.bumpMap = displaySystem.GetTexture(bumpName);
 830             if(!mat.bumpMap)
 831             {
 832                mat.bumpMap = Bitmap { };
 833                if(!mat.bumpMap.Load(location, null, null) ||
 834                   !mat.bumpMap.Convert(null, pixelFormat888, null) ||
 835                   !displaySystem.AddTexture(bumpName, mat.bumpMap))
 836                   delete mat.bumpMap;
 837                if(mat.bumpMap)
 838                {
 839                   ColorAlpha * picture = (ColorAlpha *)mat.bumpMap.picture;
 840                   int bw = mat.bumpMap.width, bh = mat.bumpMap.height;
 841                   int y, x;
 842
 843                   for(y = 0; y < bh; y++)
 844                      for(x = 0; x < bw; x++)
 845                      {
 846                         uint bc = y * bw + x;
 847                         Color color = picture[bc].color;
 848                         picture[bc] = { 255, { color.r, 255 - color.b, color.g } };
 849                      }
 850                }
 851             }
 852          }
 853          else
 854          {
 855             Bitmap opacityMap = null;
 856             bool alphaOnly = true;
 857             bool translucent = false;
 858             if(!mat.baseMap)
 859             {
 860                mat.baseMap = displaySystem.GetTexture(name);
 861                if(!mat.baseMap)
 862                {
 863                   mat.baseMap = Bitmap { };
 864                   if(!mat.baseMap.Load(location, null, null) ||
 865                      !mat.baseMap.Convert(null, pixelFormat888, null) ||
 866                      !displaySystem.AddTexture(name, mat.baseMap))
 867                   {
 868                      delete mat.baseMap;
 869                   }
 870                   opacityMap = mat.baseMap;
 871                }
 872             }
 873             else if(info->parent->chunkId == MAT_MAPOPACITY)
 874             {
 875                opacityMap = Bitmap { };
 876                if(opacityMap.Load(location, null, null))
 877                {
 878                   if(opacityMap.pixelFormat == pixelFormatRGBA)
 879                      alphaOnly = false;
 880                   if(!opacityMap.Convert(null, pixelFormat888, null))
 881                      delete opacityMap;
 882                }
 883             }
 884
 885             if(mat.baseMap)
 886             {
 887                if(!mat.baseMap.displaySystem && info->parent->chunkId == MAT_MAPOPACITY && opacityMap && opacityMap.width && opacityMap.height)
 888                {
 889                   ColorAlpha * picture = (ColorAlpha *)mat.baseMap.picture;
 890                   ColorAlpha * opacityPicture = (ColorAlpha *)opacityMap.picture;
 891                   uint x, y;
 892                   int ow = opacityMap.width, oh = opacityMap.height;
 893                   int bw = mat.baseMap.width, bh = mat.baseMap.height;
 894
 895                   for(y = 0; y < bh; y++)
 896                      for(x = 0; x < bw; x++)
 897                      {
 898                         int bc = ((y % bh) * bw + (x % bw));
 899                         int oc = ((y % oh) * bw + (x % ow));
 900                         byte alpha = alphaOnly ? opacityPicture[oc].color.r : opacityPicture[oc].a;
 901                         if(alpha && alpha < 255)
 902                            translucent = true;
 903                         picture[bc] = ColorAlpha { alpha, picture[bc].color };
 904                      }
 905                }
 906                if(translucent)
 907                   mat.flags.translucent = true;
 908                mat.diffuse.r = mat.diffuse.g = mat.diffuse.b =
 909                mat.ambient.r = mat.ambient.g = mat.ambient.b = 1.0f;
 910             }
 911             if(opacityMap != mat.baseMap)
 912                delete opacityMap;
 913          }
 914          delete name;
 915          break;
 916       }
 917       case MAP_OPTIONS:
 918       {
 919          uint16 options = ReadWORD(info->f);
 920          if(!(options & MAP_OPTIONS_DONTTILE)) mat.flags.tile = true;
 921          break;
 922       }
 923       case MAP_1_U_SCALE:
 924          mat.uScale = ReadFloat(info->f);
 925          break;
 926       case MAP_1_V_SCALE:
 927          mat.vScale = ReadFloat(info->f);
 928          break;
 929       /*
 930       case AMOUNT_OF:
 931          break;
 932       default:
 933          PrintLn("Unhandled Map block");
 934          break;
 935       */
 936    }
 937    return true;
 938 }
 939
 940 static bool ReadMaterial(FileInfo * info, Material mat)
 941 {
 942    switch(info->chunkId)
 943    {
 944       case MAT_NAME:
 945       {
 946          ReadASCIIZ(info->f, &mat.name);
 947          break;
 948       }
 949       case MAT_TRANSPARENCY:
 950       {
 951          uint16 transparency;
 952          ReadChunks(ReadAmountOf, info, &transparency);
 953          mat.opacity = 1.0f - transparency / 100.0f;
 954          if(mat.opacity < 1.0)
 955             mat.flags.translucent = true;
 956          break;
 957       }
 958       case MAT_DIFFUSE:
 959       {
 960          ReadChunks(ReadRGB, info, &mat.diffuse);
 961          ReadChunks(ReadRGB, info, &mat.diffuse);
 962          break;
 963       }
 964       case MAT_AMBIENT:
 965       {
 966          ReadChunks(ReadRGB, info, &mat.ambient);
 967          ReadChunks(ReadRGB, info, &mat.ambient);
 968          break;
 969       }
 970       case MAT_SPECULAR:
 971       {
 972          ReadChunks(ReadRGB, info, &mat.specular);
 973          ReadChunks(ReadRGB, info, &mat.specular);
 974          break;
 975       }
 976       case MAT_SELFILLUM:
 977       {
 978          uint16 emissive;
 979          ReadChunks(ReadAmountOf, info, &emissive);
 980          mat.emissive.r = mat.diffuse.r * emissive / 100.0f;
 981          mat.emissive.g = mat.diffuse.g * emissive / 100.0f;
 982          mat.emissive.b = mat.diffuse.b * emissive / 100.0f;
 983          break;
 984       }
 985       case MAT_SHINSTRENGTH:
 986       {
 987          uint16 shininess;
 988          ReadChunks(ReadAmountOf, info, &shininess);
 989          mat.specular.r *= shininess / 100.0f;
 990          mat.specular.g *= shininess / 100.0f;
 991          mat.specular.b *= shininess / 100.0f;
 992          break;
 993       }
 994       case MAT_SHININESS:
 995       {
 996          uint16 power;
 997          ReadChunks(ReadAmountOf, info, &power);
 998          mat.power = power;
 999          break;
1000       }
1001       case MAT_MAPTEXTURE1:
1002          ReadChunks(ReadMap, info, mat);
1003          break;
1004       case MAT_MAPOPACITY:
1005          ReadChunks(ReadMap, info, mat);
1006          break;
1007       case MAT_DOUBLESIDED:
1008          mat.flags.doubleSided = true;
1009          break;
1010       case MAT_BUMPMAP:
1011          ReadChunks(ReadMap, info, mat);
1012          break;
1013       /*
1014       default:
1015          PrintLn("Unhandled MAT type ID", info->chunkId);
1016       */
1017    }
1018    return true;
1019 }
1020
1021 // Lights
1022 static bool ReadLight(FileInfo * info, Object object)
1023 {
1024    Mesh mesh = object.mesh;
1025    Light * light = &object.light;
1026    switch(info->chunkId)
1027    {
1028       case RGB_BYTE:
1029       case RGB_BYTE_GAMMA:
1030       case RGB_FLOAT:
1031       case RGB_FLOAT_GAMMA:
1032          ReadRGB(info, &light->diffuse);
1033          light->specular = light->diffuse;
1034          break;
1035       case LIT_SPOT:
1036       {
1037          Object target;
1038          char targetName[MAXNAMELEN];
1039
1040          strcpy(targetName, object.name);
1041          strcat(targetName, ".target");
1042
1043          light->flags.omni = false;
1044          light->flags.spot = true;
1045
1046          target = Object { };
1047          target.name = CopyString(targetName);
1048          info->rootObject.children.AddName(target);
1049          target.parent = info->rootObject;
1050
1051          light->target = target;
1052
1053          target.transform.position.x = ReadFloat(info->f);
1054          target.transform.position.z = ReadFloat(info->f);
1055          target.transform.position.y =-ReadFloat(info->f);
1056
1057          light->hotSpot = ReadFloat(info->f);
1058          light->fallOff = ReadFloat(info->f);
1059          break;
1060       }
1061       case LIT_ONOFF:
1062       {
1063          light->flags.off = true;
1064          break;
1065       }
1066       case LIT_ATTENUATION:
1067       {
1068          /* solve (
1069             {
1070                d = 300, small = 0.001,
1071                Kl = 0, Kc = 0,
1072                d * (Kl + Kq * d) = (1 / small) - Kc
1073             },
1074             { Kc, Kl, Kq, small, d });
1075          */
1076
1077          light->flags.attenuation = true;
1078
1079          /*
1080          #define MINLIGHT     0.08
1081          light->Kq = 1/(light->end*light->end*MINLIGHT);
1082          */
1083
1084          #define MINLIGHT     0.15f
1085          // #define MINLIGHT     0.1
1086          light->Kl = (float)(1/(light->end*MINLIGHT));
1087
1088          break;
1089       }
1090       case LIT_START:
1091       {
1092          light->start = ReadFloat(info->f);
1093          break;
1094       }
1095       case LIT_END:
1096       {
1097          light->end = ReadFloat(info->f);
1098          break;
1099       }
1100       case LIT_MULTIPLIER:
1101       {
1102          light->multiplier = ReadFloat(info->f);
1103          break;
1104       }
1105    }
1106    return true;
1107 }
1108
1109 // Cameras
1110 static bool ReadCamera(FileInfo * info, Object object)
1111 {
1112    Mesh mesh = object.mesh;
1113    switch(info->chunkId)
1114    {
1115       case CAM_SEECONE:
1116       {
1117          break;
1118       }
1119       case CAM_RANGES:
1120       {
1121          Camera camera = object.camera;
1122          float nearRange = ReadFloat(info->f);
1123          float farRange = ReadFloat(info->f);
1124          /*
1125          camera.zMin = Max(0.1, nearRange);
1126          camera.zMax = farRange;
1127          */
1128          break;
1129       }
1130    }
1131    return true;
1132 }
1133
1134 // Edit Chunks
1135 static bool ReadEditObject(FileInfo * info, char * name)
1136 {
1137    DisplaySystem displaySystem = info->displaySystem;
1138    switch(info->chunkId)
1139    {
1140       case OBJ_TRIMESH:
1141       {
1142          Object object = info->rootObject.Find(name);
1143          if(!object)
1144          {
1145             object = Object { };
1146             object.name = CopyString(name);
1147             info->rootObject.children.AddName(object);
1148             object.parent = info->rootObject;
1149          }
1150          object.InitializeMesh(displaySystem);
1151          ReadChunks(ReadTriMesh, info, object);
1152          object.flags.mesh = true;
1153          object.mesh.Unlock(0);
1154          break;
1155       }
1156       case OBJ_LIGHT:
1157       {
1158          Object object = info->rootObject.Find(name);
1159          Light * light;
1160          Vector3Df position;
1161
1162          if(!object)
1163          {
1164             object = Object { };
1165             object.name = CopyString(name);
1166             info->rootObject.children.AddName(object);
1167             object.parent = info->rootObject;
1168          }
1169          object.flags.light = true;
1170
1171          light = &object.light;
1172          light->lightObject = object;
1173          light->flags.omni = true;
1174          light->multiplier = 1.0f;
1175
1176          // This is not used?
1177          Read3DVertex(info->f, position);
1178          light->direction = { position.x, position.y, position.z };
1179          info->pos += sizeof(float) * 3;
1180
1181          ReadChunks(ReadLight, info, object);
1182          break;
1183       }
1184       case OBJ_CAMERA:
1185       {
1186          char targetName[MAXNAMELEN];
1187          Object object = info->rootObject.Find(name);
1188          Object target;
1189          Camera camera;
1190          float bankAngle, focus;
1191          double mm;
1192
1193          strcpy(targetName, name);
1194          strcat(targetName, ".target");
1195          target = info->rootObject.Find(targetName);
1196
1197          if(!object)
1198          {
1199             object = Object { };
1200             object.name = CopyString(name);
1201             info->rootObject.children.AddName(object);
1202
1203             object.parent = info->rootObject;
1204             object.camera = Camera { };
1205             object.camera.type = lookAtObject;
1206          }
1207
1208          if(!target)
1209          {
1210             target = Object { };
1211             target.name = CopyString(targetName);
1212             info->rootObject.children.AddName(target);
1213             target.parent = info->rootObject;
1214          }
1215
1216          object.flags.camera = true;
1217          object.cameraTarget = target;
1218
1219          camera = object.camera;
1220          camera.cameraObject = object;
1221          camera.target = target;
1222
1223          //Read3DVertex(info->f, camera.position);
1224          object.transform.position.x = ReadFloat(info->f);
1225          object.transform.position.z = ReadFloat(info->f);
1226          object.transform.position.y =-ReadFloat(info->f);
1227
1228          info->pos += sizeof(float) * 3;
1229          //Read3DVertex(info->f, object.cameraTarget.position);
1230          target.transform.position.x = ReadFloat(info->f);
1231          target.transform.position.z = ReadFloat(info->f);
1232          target.transform.position.y =-ReadFloat(info->f);
1233
1234          info->pos += sizeof(float) * 3;
1235          bankAngle = ReadFloat(info->f);
1236          info->pos += sizeof(float);
1237          focus = ReadFloat(info->f);
1238          info->pos += sizeof(float);
1239
1240          mm = (focus - 5.05659508373109) / 1.13613250717301;
1241          camera.fov = (float)(1248.58921609766 * pow(mm, -0.895625414990581));
1242
1243          ReadChunks(ReadCamera, info, object);
1244          break;
1245       }
1246       case OBJ_HIDDEN: break;
1247    }
1248    return true;
1249 }
1250
1251 #define COPY_NITEM(d, s) CopyBytes(((byte *)(d)) + sizeof(class NamedItem), ((byte *)(s)) + sizeof(class NamedItem), sizeof((*s)) - sizeof(class NamedItem));
1252
1253 static bool ReadEditChunks(FileInfo * info, void * data)
1254 {
1255    switch(info->chunkId)
1256    {
1257       case EDIT_AMBIENT:
1258       {
1259          // Read the ambient color
1260          ReadChunks(ReadRGB, info, &info->rootObject.ambient);
1261          break;
1262       }
1263       case EDIT_MATERIAL:
1264       {
1265          Material material { };
1266          Material mat;
1267          ReadChunks(ReadMaterial, info, material);
1268
1269          mat = info->displaySystem.AddNamedMaterial(material.name);
1270          if(mat)
1271          {
1272             if(material.baseMap)
1273                material.baseMap.MakeMipMaps(info->displaySystem);
1274             if(material.bumpMap)
1275                material.bumpMap.MakeMipMaps(info->displaySystem);
1276             // COPY_NITEM(mat, material);
1277             CopyBytes(((byte *)(mat)) + sizeof(class NamedItem), ((byte *)(material)) + sizeof(class NamedItem), sizeof(class Material) - sizeof(class NamedItem));
1278          }
1279          else
1280          {
1281             delete material.baseMap;
1282          }
1283          delete material.name;
1284          delete material;
1285          break;
1286       }
1287       case EDIT_OBJECT:
1288       {
1289          char * name;
1290          info->pos += ReadASCIIZ(info->f, &name);
1291          ReadChunks(ReadEditObject, info, name);
1292          delete name;
1293          break;
1294       }
1295    }
1296    return true;
1297 }
1298
1299 struct ObjectInfoBlock
1300 {
1301    OldList tracks;
1302    short hierarchy;
1303    short parent;
1304    char * name;
1305    char * dummyName;
1306    Vector3Df pivot;
1307 };
1308
1309 // Key Framer Chunks
1310
1311 #define ACCFLAG_TENSION    0x00000001
1312 #define ACCFLAG_CONTINUITY 0x00000002
1313 #define ACCFLAG_BIAS       0x00000004
1314 #define ACCFLAG_EASETO     0x00000008
1315 #define ACCFLAG_EASEFROM   0x00000010
1316
1317 static bool ReadFrameInfoBlock(FileInfo * info, ObjectInfoBlock * block)
1318 {
1319    switch(info->chunkId)
1320    {
1321       case FRM_PARAM:
1322       {
1323          uint16 flags1, flags2;
1324          ReadASCIIZ(info->f, &block->name);
1325          flags1 = ReadWORD(info->f);
1326          flags2 = ReadWORD(info->f);
1327          block->parent = ReadWORD(info->f);
1328          break;
1329       }
1330       case FRM_DUMMYNAME:
1331          ReadASCIIZ(info->f, &block->dummyName);
1332          break;
1333       case FRM_PIVOT:
1334          Read3DVertex(info->f, block->pivot);
1335          break;
1336       case FRM_HIERARCHY:
1337          block->hierarchy = ReadWORD(info->f);
1338          break;
1339       case FRM_TRACKPOS:
1340       case FRM_TRACKROT:
1341       case FRM_TRACKSCALE:
1342       case FRM_TRACKROLL:
1343       case FRM_TRACKFOV:
1344       case FRM_TRACKCOLOR:
1345       case FRM_TRACKHOTSPOT:
1346       case FRM_TRACKFALLOFF:
1347       {
1348          FrameTrack track { };
1349          if(track)
1350          {
1351             uint16 flags;
1352             byte unknown[8];
1353             uint c;
1354
1355             block->tracks.Add(track);
1356
1357             flags = ReadWORD(info->f);
1358
1359             info->f.Read(unknown, sizeof(unknown), 1);
1360
1361             track.numKeys = ReadDWORD(info->f);
1362
1363             switch(info->chunkId)
1364             {
1365                case FRM_TRACKPOS: track.type.type = position; break;
1366                case FRM_TRACKROT: track.type.type = rotation; break;
1367                case FRM_TRACKSCALE: track.type.type = scaling; break;
1368                case FRM_TRACKROLL: track.type.type = roll; break;
1369                case FRM_TRACKFOV: track.type.type = fov; break;
1370                case FRM_TRACKCOLOR: track.type.type = colorChange; break;
1371                case FRM_TRACKHOTSPOT: track.type.type = hotSpot; break;
1372                case FRM_TRACKFALLOFF: track.type.type = fallOff; break;
1373             }
1374             if((flags & 0x0003) == 3)
1375                track.type.loop = true;
1376
1377             track.keys = new0 FrameKey[track.numKeys];
1378             for(c = 0; c<track.numKeys; c++)
1379             {
1380                uint16 accelerationFlags;
1381                FrameKey * key = track.keys + c;
1382
1383                key->frame = ReadDWORD(info->f);
1384                accelerationFlags = ReadWORD(info->f);
1385
1386                if(accelerationFlags & ACCFLAG_TENSION)
1387                   key->tension = ReadFloat(info->f);
1388                if(accelerationFlags & ACCFLAG_CONTINUITY)
1389                   key->continuity = ReadFloat(info->f);
1390                if(accelerationFlags & ACCFLAG_BIAS)
1391                   key->bias = ReadFloat(info->f);
1392                if(accelerationFlags & ACCFLAG_EASETO)
1393                   key->easeTo = ReadFloat(info->f);
1394                if(accelerationFlags & ACCFLAG_EASEFROM)
1395                   key->easeFrom = ReadFloat(info->f);
1396
1397                switch(info->chunkId)
1398                {
1399                   case FRM_TRACKPOS:
1400                   {
1401                      Vector3Df position;
1402                      Read3DVertex(info->f, position);
1403                      key->position = { position.x, -position.z, position.y };
1404                      break;
1405                   }
1406                   case FRM_TRACKROT:
1407                   {
1408                      Vector3Df axis;
1409                      Angle angle = ReadFloat(info->f);
1410                      Vector3Df fixedAxis;
1411
1412                      Read3DVertex(info->f, axis);
1413                      fixedAxis.x = axis.x;
1414                      fixedAxis.y = -axis.z;
1415                      fixedAxis.z = axis.y;
1416
1417                      if(c > 0)
1418                      {
1419                         Quaternion rotation;
1420                         rotation.RotationAxis(fixedAxis, angle);
1421                         key->orientation.Multiply((key - 1)->orientation, rotation);
1422                      }
1423                      else
1424                         key->orientation.RotationAxis(fixedAxis, angle);
1425                      break;
1426                   }
1427                   case FRM_TRACKSCALE:
1428                   {
1429                      Vector3Df scaling;
1430                      Read3DVertex(info->f, scaling);
1431                      key->scaling = { scaling.x, scaling.z, scaling.y };
1432                      break;
1433                   }
1434                   case FRM_TRACKFOV:
1435                   {
1436                      key->fov = ReadFloat(info->f);
1437                      break;
1438                   }
1439                   case FRM_TRACKROLL:
1440                   {
1441                      key->roll = -ReadFloat(info->f);
1442                      break;
1443                   }
1444                   case FRM_TRACKCOLOR:
1445                   {
1446                      FileInfo childInfo = *info;
1447                      childInfo.chunkId = RGB_FLOAT;
1448                      ReadRGB(&childInfo, &key->color);
1449                      break;
1450                   }
1451                   case FRM_TRACKHOTSPOT:
1452                   {
1453                      key->hotSpot = ReadFloat(info->f);
1454                      break;
1455                   }
1456                   case FRM_TRACKFALLOFF:
1457                   {
1458                      key->fallOff = ReadFloat(info->f);
1459                      break;
1460                   }
1461                }
1462             }
1463          }
1464          break;
1465       }
1466    }
1467    return true;
1468 }
1469
1470 static Object FindObjectID(Object object, int id)
1471 {
1472    Object result = null;
1473    Object child;
1474    for(child = object.children.first; child; child = child.next)
1475    {
1476       if(child.flags.hierarchy == (uint16) id)
1477       {
1478          result = child;
1479          break;
1480       }
1481       else
1482       {
1483          result = FindObjectID(child, id);
1484          if(result) break;
1485       }
1486    }
1487    return result;
1488 }
1489
1490 static bool ReadKeyFrameChunks(FileInfo * info, void * data)
1491 {
1492    switch(info->chunkId)
1493    {
1494       case FRM_MESHINFO:
1495       {
1496          ObjectInfoBlock block { };
1497          Object object;
1498
1499          ReadChunks(ReadFrameInfoBlock, info, &block);
1500
1501          if(block.dummyName && block.dummyName[0])
1502          {
1503             if(!strcmp(block.name, "$$$DUMMY"))
1504             {
1505                object = Object { };
1506                object.name = block.dummyName;
1507                info->rootObject.children.AddName(object);
1508                object.transform.scaling = { 1,1,1 };
1509             }
1510             else
1511             {
1512                Object model = info->rootObject.Find(block.name);
1513                if(model)
1514                {
1515                   object = Object { };
1516                   object.name  = new char[strlen(block.dummyName) + strlen(model.name) + 2];
1517                   sprintf(object.name, "%s.%s", model.name, block.dummyName);
1518                   object.flags = model.flags;
1519                   object.flags.ownMesh = false;
1520                   object.mesh = model.mesh;
1521                   /*
1522                   object.min = model.min;
1523                   object.max = model.max;
1524                   object.radius = model.radius;
1525                   */
1526                   object.transform = model.transform;
1527                   info->rootObject.children.AddName(object);
1528                }
1529                delete block.dummyName;
1530             }
1531             object.parent = info->rootObject;
1532          }
1533          else
1534             object = info->rootObject.Find(block.name);
1535
1536          if(object)
1537          {
1538             Mesh mesh = object.mesh;
1539             object.flags.hierarchy = block.hierarchy + 1;
1540             if(block.parent != -1)
1541             {
1542                Object parent = FindObjectID(info->rootObject, block.parent + 1);
1543                if(parent)
1544                {
1545                   object.parent.children.Remove(object);
1546                   parent.children.AddName(object);
1547                   object.parent = parent;
1548                }
1549             }
1550             object.pivot.x = block.pivot.x;
1551             object.pivot.y =-block.pivot.z;
1552             object.pivot.z = block.pivot.y;
1553
1554             if(mesh && object.flags.ownMesh)
1555             {
1556                if(mesh.Lock({ vertices = true }))
1557                {
1558                   int c;
1559                   // Take pivot into account
1560                   for(c = 0; c<mesh.nVertices; c++)
1561                   {
1562                      mesh.vertices[c].x -= object.pivot.x;
1563                      mesh.vertices[c].y -= object.pivot.y;
1564                      mesh.vertices[c].z -= object.pivot.z;
1565                   }
1566                   mesh.Unlock({ vertices = true });
1567                }
1568             }
1569
1570             object.tracks = block.tracks;
1571             *&(object.frame) = object.startFrame = info->rootObject.startFrame;
1572             object.endFrame = info->rootObject.endFrame;
1573          }
1574          /*else
1575             Logf("Object not found while loading animation frame: %s\n", block.name);*/
1576          delete block.name;
1577          break;
1578       }
1579       case FRM_CAMERA:
1580       {
1581          ObjectInfoBlock block { };
1582          Object object;
1583
1584          ReadChunks(ReadFrameInfoBlock, info, &block);
1585
1586          if(block.dummyName && block.dummyName[0])
1587          {
1588             if(!strcmp(block.name, "$$$DUMMY"))
1589             {
1590                object = Object { };
1591                object.name = block.dummyName;
1592                info->rootObject.children.AddName(object);
1593                object.transform.scaling = { 1, 1, 1 };
1594                object.flags.camera = true;
1595             }
1596             else
1597             {
1598                Object model = info->rootObject.Find(block.name);
1599                if(model)
1600                {
1601                   object = Object { };
1602                   object.name  = new char[strlen(block.dummyName) + strlen(model.name) + 2];
1603                   sprintf(object.name, "%s.%s", model.name, block.dummyName);
1604                   object.flags = model.flags;
1605                   object.flags.ownMesh = false;
1606                   object.camera = model.camera;
1607                   object.flags.camera = true;
1608                   info->rootObject.children.AddName(object);
1609                }
1610                delete block.dummyName;
1611             }
1612             object.parent = info->rootObject;
1613          }
1614          else
1615             object = info->rootObject.Find(block.name);
1616
1617          if(object)
1618          {
1619             object.flags.hierarchy = block.hierarchy + 1;
1620             if(block.parent != -1)
1621             {
1622                Object parent = FindObjectID(info->rootObject, block.parent + 1);
1623                if(parent)
1624                {
1625                   object.parent.children.Remove(object);
1626                   parent.children.AddName(object);
1627                   object.parent = parent;
1628                }
1629             }
1630             object.pivot.x = block.pivot.x;
1631             object.pivot.y =-block.pivot.z;
1632             object.pivot.z = block.pivot.y;
1633
1634             object.tracks = block.tracks;
1635             *&(object.frame) = object.startFrame = info->rootObject.startFrame;
1636             object.endFrame = info->rootObject.endFrame;
1637          }
1638          /*else
1639             Logf("Object not found while loading animation frame: %s\n", block.name);*/
1640          delete block.name;
1641          break;
1642       }
1643       case FRM_CAMERATARGET:
1644       {
1645          ObjectInfoBlock block { };
1646          Object object;
1647          char targetName[MAXNAMELEN];
1648
1649          ReadChunks(ReadFrameInfoBlock, info, &block);
1650
1651          strcpy(targetName, block.name);
1652          strcat(targetName, ".target");
1653
1654          if(block.dummyName && block.dummyName[0])
1655          {
1656             if(!strcmp(block.name, "$$$DUMMY"))
1657             {
1658                object = Object { };
1659                object.name = block.dummyName;
1660                info->rootObject.children.AddName(object);
1661                object.transform.scaling = { 1,1,1 };
1662             }
1663             else
1664             {
1665                Object model = info->rootObject.Find(targetName);
1666                if(model)
1667                {
1668                   object = Object { };
1669                   object.name  = new char[strlen(block.dummyName) + strlen(model.name) + 2];
1670                   sprintf(object.name, "%s.%s", model.name, block.dummyName);
1671                   object.flags = model.flags;
1672                   object.flags.ownMesh = false;
1673                   object.camera = model.camera;
1674                   info->rootObject.children.AddName(object);
1675                }
1676                delete block.dummyName;
1677             }
1678             object.parent = info->rootObject;
1679          }
1680          else
1681             object = info->rootObject.Find(targetName);
1682
1683          if(object)
1684          {
1685             object.flags.hierarchy = block.hierarchy + 1;
1686             if(block.parent != -1)
1687             {
1688                Object parent = FindObjectID(info->rootObject, block.parent + 1);
1689                if(parent)
1690                {
1691                   object.parent.children.Remove(object);
1692                   parent.children.AddName(object);
1693                   object.parent = parent;
1694                }
1695             }
1696             object.pivot.x = block.pivot.x;
1697             object.pivot.y =-block.pivot.z;
1698             object.pivot.z = block.pivot.y;
1699
1700             object.tracks = block.tracks;
1701             *&(object.frame) = object.startFrame = info->rootObject.startFrame;
1702             object.endFrame = info->rootObject.endFrame;
1703          }
1704          /*else
1705             Logf("Object not found while loading animation frame: %s\n", block.name);*/
1706          delete block.name;
1707          break;
1708       }
1709       case FRM_AMBIENT:
1710       {
1711          ObjectInfoBlock block { };
1712
1713          ReadChunks(ReadFrameInfoBlock, info, &block);
1714
1715          info->rootObject.tracks = block.tracks;
1716          break;
1717       }
1718       case FRM_OMNILIGHT:
1719       case FRM_SPOTLIGHT:
1720       {
1721          ObjectInfoBlock block { };
1722          Object object;
1723
1724          ReadChunks(ReadFrameInfoBlock, info, &block);
1725
1726          if(block.dummyName && block.dummyName[0])
1727          {
1728             if(!strcmp(block.name, "$$$DUMMY"))
1729             {
1730                object = Object { };
1731                object.name = block.dummyName;
1732                info->rootObject.children.AddName(object);
1733                object.transform.scaling = { 1, 1, 1 };
1734                object.flags.light = true;
1735             }
1736             else
1737             {
1738                Object model = info->rootObject.Find(block.name);
1739                if(model)
1740                {
1741                   object = Object { };
1742                   object.name  = new char[strlen(block.dummyName) + strlen(model.name) + 2];
1743                   sprintf(object.name, "%s.%s", model.name, block.dummyName);
1744                   object.flags = model.flags;
1745                   object.flags.ownMesh = false;
1746                   object.light = model.light;
1747                   object.flags.light = true;
1748                   info->rootObject.children.AddName(object);
1749                }
1750                delete block.dummyName;
1751             }
1752             object.parent = info->rootObject;
1753          }
1754          else
1755             object = info->rootObject.Find(block.name);
1756
1757          if(object)
1758          {
1759             object.flags.hierarchy = block.hierarchy + 1;
1760             if(block.parent != -1)
1761             {
1762                Object parent = FindObjectID(info->rootObject, block.parent + 1);
1763                if(parent)
1764                {
1765                   object.parent.children.Remove(object);
1766                   parent.children.AddName(object);
1767                   object.parent = parent;
1768                }
1769             }
1770             object.pivot.x = block.pivot.x;
1771             object.pivot.y =-block.pivot.z;
1772             object.pivot.z = block.pivot.y;
1773
1774             object.tracks = block.tracks;
1775             *&(object.frame) = object.startFrame = info->rootObject.startFrame;
1776             object.endFrame = info->rootObject.endFrame;
1777          }
1778          /*else
1779             Logf("Object not found while loading animation frame: %s\n", block.name);*/
1780          delete block.name;
1781          break;
1782       }
1783       case FRM_SPOTLIGHTTARGET:
1784       {
1785          ObjectInfoBlock block { };
1786          Object object;
1787          char targetName[MAXNAMELEN];
1788
1789          ReadChunks(ReadFrameInfoBlock, info, &block);
1790
1791          strcpy(targetName, block.name);
1792          strcat(targetName, ".target");
1793
1794          if(block.dummyName && block.dummyName[0])
1795          {
1796             if(!strcmp(block.name, "$$$DUMMY"))
1797             {
1798                object = Object { };
1799                object.name = block.dummyName;
1800                info->rootObject.children.AddName(object);
1801                object.transform.scaling = { 1,1,1 };
1802             }
1803             else
1804             {
1805                Object model = info->rootObject.Find(targetName);
1806                if(model)
1807                {
1808                   object = Object { };
1809                   object.name  = new char[strlen(block.dummyName) + strlen(model.name) + 2];
1810                   sprintf(object.name, "%s.%s", model.name, block.dummyName);
1811                   object.flags = model.flags;
1812                   object.flags.ownMesh = false;
1813                   object.light = model.light;
1814                   info->rootObject.children.AddName(object);
1815                }
1816                delete block.dummyName;
1817             }
1818             object.parent = info->rootObject;
1819          }
1820          else
1821             object = info->rootObject.Find(targetName);
1822
1823          if(object)
1824          {
1825             object.flags.hierarchy = block.hierarchy + 1;
1826             if(block.parent != -1)
1827             {
1828                Object parent = FindObjectID(info->rootObject, block.parent + 1);
1829                if(parent)
1830                {
1831                   object.parent.children.Remove(object);
1832                   parent.children.AddName(object);
1833                   object.parent = parent;
1834                }
1835             }
1836             object.pivot.x = block.pivot.x;
1837             object.pivot.y =-block.pivot.z;
1838             object.pivot.z = block.pivot.y;
1839
1840             object.tracks = block.tracks;
1841             *&(object.frame) = object.startFrame = info->rootObject.startFrame;
1842             object.endFrame = info->rootObject.endFrame;
1843          }
1844          /*else
1845             Logf("Object not found while loading animation frame: %s\n", block.name);*/
1846          delete block.name;
1847          break;
1848       }
1849       case FRM_FRAMES:
1850       {
1851          info->rootObject.startFrame = ReadDWORD(info->f);
1852          info->rootObject.endFrame = ReadDWORD(info->f);
1853          *&(info->rootObject.frame) = info->rootObject.startFrame;
1854          break;
1855       }
1856    }
1857    return true;
1858 }
1859
1860 // Main Chunks
1861 static bool ReadMainChunks(FileInfo * info, void * data)
1862 {
1863    switch(info->chunkId)
1864    {
1865       case EDIT3DS:
1866          ReadChunks(ReadEditChunks, info, null);
1867          break;
1868       case KEYFRAME3DS:
1869       {
1870          Object object = data;
1871          if(!(object.flags.keysLoaded)) // Don't read key frames on reload
1872          {
1873             ReadChunks(ReadKeyFrameChunks, info, null);
1874             object.flags.keysLoaded = true;
1875          }
1876          break;
1877       }
1878    }
1879    return true;
1880 }
1881
1882 static bool ReadMain(FileInfo * info, void * data)
1883 {
1884    switch(info->chunkId)
1885    {
1886       case MAIN3DS:
1887          ReadChunks(ReadMainChunks, info, data);
1888          break;
1889    }
1890    return true;
1891 }
1892
1893 class Object3DSFormat : ObjectFormat
1894 {
1895    class_property(extension) = "3ds";
1896
1897    bool Load(Object object, char * fileName, DisplaySystem displaySystem)
1898    {
1899       bool result = false;
1900       if(fileName)
1901       {
1902          FileInfo info = {0};
1903          info.rootObject = object;
1904          info.displaySystem = displaySystem;
1905          info.pos = 0;
1906          info.end = 1;
1907          StripLastDirectory(fileName, info.textureDirectory);
1908          info.f = FileOpen(fileName, read);
1909          if(info.f)
1910          {
1911             if(ReadChunks(ReadMain, &info, object) && info.rootObject.children.first)
1912             {
1913                object.flags.root = true;
1914                object.SetMinMaxRadius(true);
1915                object._Animate(object.frame);
1916                object.UpdateTransform();
1917                result = true;
1918             }
1919             delete info.f;
1920          }
1921       }
1922       if(!result)
1923          object.Free(displaySystem);
1924       return result;
1925    }
1926 }