| 1 | < | /* Copyright (c) 1994 Regents of the University of California */ | 
| 1 | > | /* Copyright (c) 1996 Regents of the University of California */ | 
| 2 |  |  | 
| 3 |  | #ifndef lint | 
| 4 |  | static char SCCSid[] = "$SunId$ LBL"; | 
| 33 |  | int     argc; | 
| 34 |  | char    *argv[]; | 
| 35 |  | { | 
| 36 | < | int     i, rv; | 
| 36 | > | int     i; | 
| 37 | > | /* print out parser version */ | 
| 38 | > | printf("## Translated from MGF Version %d.%d\n", MG_VMAJOR, MG_VMINOR); | 
| 39 |  | /* initialize dispatch table */ | 
| 40 | < | mg_ehand[MG_E_COMMENT] = r_comment; | 
| 41 | < | mg_ehand[MG_E_COLOR] = c_hcolor; | 
| 42 | < | mg_ehand[MG_E_CONE] = r_cone; | 
| 43 | < | mg_ehand[MG_E_CMIX] = c_hcolor; | 
| 44 | < | mg_ehand[MG_E_CSPEC] = c_hcolor; | 
| 45 | < | mg_ehand[MG_E_CXY] = c_hcolor; | 
| 46 | < | mg_ehand[MG_E_CCT] = c_hcolor; | 
| 47 | < | mg_ehand[MG_E_CYL] = r_cyl; | 
| 48 | < | mg_ehand[MG_E_ED] = c_hmaterial; | 
| 49 | < | mg_ehand[MG_E_FACE] = r_face; | 
| 50 | < | mg_ehand[MG_E_IES] = r_ies; | 
| 51 | < | mg_ehand[MG_E_IR] = c_hmaterial; | 
| 52 | < | mg_ehand[MG_E_MATERIAL] = c_hmaterial; | 
| 53 | < | mg_ehand[MG_E_NORMAL] = c_hvertex; | 
| 54 | < | mg_ehand[MG_E_OBJECT] = obj_handler; | 
| 55 | < | mg_ehand[MG_E_POINT] = c_hvertex; | 
| 56 | < | mg_ehand[MG_E_RD] = c_hmaterial; | 
| 57 | < | mg_ehand[MG_E_RING] = r_ring; | 
| 58 | < | mg_ehand[MG_E_RS] = c_hmaterial; | 
| 59 | < | mg_ehand[MG_E_SIDES] = c_hmaterial; | 
| 60 | < | mg_ehand[MG_E_SPH] = r_sph; | 
| 61 | < | mg_ehand[MG_E_TD] = c_hmaterial; | 
| 62 | < | mg_ehand[MG_E_TS] = c_hmaterial; | 
| 63 | < | mg_ehand[MG_E_VERTEX] = c_hvertex; | 
| 64 | < | mg_ehand[MG_E_XF] = xf_handler; | 
| 40 | > | mg_ehand[MG_E_COMMENT] = r_comment;     /* we pass comments */ | 
| 41 | > | mg_ehand[MG_E_COLOR] = c_hcolor;        /* they get color */ | 
| 42 | > | mg_ehand[MG_E_CONE] = r_cone;           /* we do cones */ | 
| 43 | > | mg_ehand[MG_E_CMIX] = c_hcolor;         /* they mix colors */ | 
| 44 | > | mg_ehand[MG_E_CSPEC] = c_hcolor;        /* they get spectra */ | 
| 45 | > | mg_ehand[MG_E_CXY] = c_hcolor;          /* they get chromaticities */ | 
| 46 | > | mg_ehand[MG_E_CCT] = c_hcolor;          /* they get color temp's */ | 
| 47 | > | mg_ehand[MG_E_CYL] = r_cyl;             /* we do cylinders */ | 
| 48 | > | mg_ehand[MG_E_ED] = c_hmaterial;        /* they get emission */ | 
| 49 | > | mg_ehand[MG_E_FACE] = r_face;           /* we do faces */ | 
| 50 | > | mg_ehand[MG_E_IES] = r_ies;             /* we do IES files */ | 
| 51 | > | mg_ehand[MG_E_IR] = c_hmaterial;        /* they get refractive index */ | 
| 52 | > | mg_ehand[MG_E_MATERIAL] = c_hmaterial;  /* they get materials */ | 
| 53 | > | mg_ehand[MG_E_NORMAL] = c_hvertex;      /* they get normals */ | 
| 54 | > | mg_ehand[MG_E_OBJECT] = obj_handler;    /* they track object names */ | 
| 55 | > | mg_ehand[MG_E_POINT] = c_hvertex;       /* they get points */ | 
| 56 | > | mg_ehand[MG_E_RD] = c_hmaterial;        /* they get diffuse refl. */ | 
| 57 | > | mg_ehand[MG_E_RING] = r_ring;           /* we do rings */ | 
| 58 | > | mg_ehand[MG_E_RS] = c_hmaterial;        /* they get specular refl. */ | 
| 59 | > | mg_ehand[MG_E_SIDES] = c_hmaterial;     /* they get # sides */ | 
| 60 | > | mg_ehand[MG_E_SPH] = r_sph;             /* we do spheres */ | 
| 61 | > | mg_ehand[MG_E_TD] = c_hmaterial;        /* they get diffuse trans. */ | 
| 62 | > | mg_ehand[MG_E_TS] = c_hmaterial;        /* they get specular trans. */ | 
| 63 | > | mg_ehand[MG_E_VERTEX] = c_hvertex;      /* they get vertices */ | 
| 64 | > | mg_ehand[MG_E_XF] = xf_handler;         /* they track transforms */ | 
| 65 |  | mg_init();              /* initialize the parser */ | 
| 66 | < | /* get options & print header */ | 
| 66 | > | /* get our options & print header */ | 
| 67 |  | printf("## %s", argv[0]); | 
| 68 |  | for (i = 1; i < argc && argv[i][0] == '-'; i++) { | 
| 69 |  | printf(" %s", argv[i]); | 
| 94 |  | } | 
| 95 |  | putchar('\n'); | 
| 96 |  | if (i == argc) {                /* convert stdin */ | 
| 97 | < | if ((rv = mg_load(NULL)) != MG_OK) | 
| 97 | > | if (mg_load(NULL) != MG_OK) | 
| 98 |  | exit(1); | 
| 99 | + | if (mg_nunknown) | 
| 100 | + | printf("## %s: %u unknown entities\n", | 
| 101 | + | argv[0], mg_nunknown); | 
| 102 |  | } else                          /* convert each file */ | 
| 103 |  | for ( ; i < argc; i++) { | 
| 104 |  | printf("## %s %s ##############################\n", | 
| 105 |  | argv[0], argv[i]); | 
| 106 | < | if ((rv = mg_load(argv[i])) != MG_OK) | 
| 106 | > | if (mg_load(argv[i]) != MG_OK) | 
| 107 |  | exit(1); | 
| 108 | + | if (mg_nunknown) { | 
| 109 | + | printf("## %s %s: %u unknown entities\n", | 
| 110 | + | argv[0], argv[i], mg_nunknown); | 
| 111 | + | mg_nunknown = 0; | 
| 112 | + | } | 
| 113 |  | } | 
| 114 |  | exit(0); | 
| 115 |  | userr: | 
| 125 |  | register char   **av; | 
| 126 |  | { | 
| 127 |  | putchar('#');           /* use Radiance comment character */ | 
| 128 | < | while (--ac) { | 
| 128 | > | while (--ac) {                  /* pass through verbatim */ | 
| 129 |  | putchar(' '); | 
| 130 |  | fputs(*++av, stdout); | 
| 131 |  | } | 
| 145 |  | C_VERTEX        *cv1, *cv2; | 
| 146 |  | FVECT   p1, p2; | 
| 147 |  | int     inv; | 
| 148 | < |  | 
| 148 | > | /* check argument count and type */ | 
| 149 |  | if (ac != 5) | 
| 150 |  | return(MG_EARGC); | 
| 151 |  | if (!isflt(av[2]) || !isflt(av[4])) | 
| 152 |  | return(MG_ETYPE); | 
| 153 | + | /* get the endpoint vertices */ | 
| 154 |  | if ((cv1 = c_getvert(av[1])) == NULL || | 
| 155 |  | (cv2 = c_getvert(av[3])) == NULL) | 
| 156 |  | return(MG_EUNDEF); | 
| 157 | < | xf_xfmpoint(p1, cv1->p); | 
| 157 | > | xf_xfmpoint(p1, cv1->p);        /* transform endpoints */ | 
| 158 |  | xf_xfmpoint(p2, cv2->p); | 
| 159 | < | r1 = xf_scale(atof(av[2])); | 
| 159 | > | r1 = xf_scale(atof(av[2]));     /* scale radii */ | 
| 160 |  | r2 = xf_scale(atof(av[4])); | 
| 161 | < | inv = r1 < 0.; | 
| 162 | < | if (r1 == 0.) { | 
| 161 | > | inv = r1 < 0.;                  /* check for inverted cone */ | 
| 162 | > | if (r1 == 0.) {                 /* check for illegal radii */ | 
| 163 |  | if (r2 == 0.) | 
| 164 |  | return(MG_EILL); | 
| 165 |  | inv = r2 < 0.; | 
| 169 |  | r1 = -r1; | 
| 170 |  | r2 = -r2; | 
| 171 |  | } | 
| 172 | < | if ((mat = material()) == NULL) | 
| 172 | > | if ((mat = material()) == NULL) /* get material */ | 
| 173 |  | return(MG_EBADMAT); | 
| 174 | + | /* spit the sucker out */ | 
| 175 |  | printf("\n%s %s %sc%d\n", mat, inv ? "cup" : "cone", | 
| 176 |  | object(), ++ncones); | 
| 177 |  | printf("0\n0\n8\n"); | 
| 193 |  | C_VERTEX        *cv1, *cv2; | 
| 194 |  | FVECT   p1, p2; | 
| 195 |  | int     inv; | 
| 196 | < |  | 
| 196 | > | /* check argument count and type */ | 
| 197 |  | if (ac != 4) | 
| 198 |  | return(MG_EARGC); | 
| 199 |  | if (!isflt(av[2])) | 
| 200 |  | return(MG_ETYPE); | 
| 201 | + | /* get the endpoint vertices */ | 
| 202 |  | if ((cv1 = c_getvert(av[1])) == NULL || | 
| 203 |  | (cv2 = c_getvert(av[3])) == NULL) | 
| 204 |  | return(MG_EUNDEF); | 
| 205 | < | xf_xfmpoint(p1, cv1->p); | 
| 205 | > | xf_xfmpoint(p1, cv1->p);        /* transform endpoints */ | 
| 206 |  | xf_xfmpoint(p2, cv2->p); | 
| 207 | < | rad = xf_scale(atof(av[2])); | 
| 208 | < | if ((inv = rad < 0.)) | 
| 207 | > | rad = xf_scale(atof(av[2]));    /* scale radius */ | 
| 208 | > | if ((inv = rad < 0.))           /* check for inverted cylinder */ | 
| 209 |  | rad = -rad; | 
| 210 | < | if ((mat = material()) == NULL) | 
| 210 | > | if ((mat = material()) == NULL) /* get material */ | 
| 211 |  | return(MG_EBADMAT); | 
| 212 | + | /* spit out the primitive */ | 
| 213 |  | printf("\n%s %s %scy%d\n", mat, inv ? "tube" : "cylinder", | 
| 214 |  | object(), ++ncyls); | 
| 215 |  | printf("0\n0\n7\n"); | 
| 231 |  | C_VERTEX        *cv; | 
| 232 |  | FVECT   cent; | 
| 233 |  | int     inv; | 
| 234 | < |  | 
| 234 | > | /* check argument count and type */ | 
| 235 |  | if (ac != 3) | 
| 236 |  | return(MG_EARGC); | 
| 237 |  | if (!isflt(av[2])) | 
| 238 |  | return(MG_ETYPE); | 
| 239 | < | if ((cv = c_getvert(av[1])) == NULL) | 
| 239 | > | if ((cv = c_getvert(av[1])) == NULL)    /* get center vertex */ | 
| 240 |  | return(MG_EUNDEF); | 
| 241 | < | xf_xfmpoint(cent, cv->p); | 
| 242 | < | rad = xf_scale(atof(av[2])); | 
| 243 | < | if ((inv = rad < 0.)) | 
| 241 | > | xf_xfmpoint(cent, cv->p);               /* transform center */ | 
| 242 | > | rad = xf_scale(atof(av[2]));            /* scale radius */ | 
| 243 | > | if ((inv = rad < 0.))                   /* check for inversion */ | 
| 244 |  | rad = -rad; | 
| 245 | < | if ((mat = material()) == NULL) | 
| 245 | > | if ((mat = material()) == NULL)         /* get material */ | 
| 246 |  | return(MG_EBADMAT); | 
| 247 | + | /* spit out primitive */ | 
| 248 |  | printf("\n%s %s %ss%d\n", mat, inv ? "bubble" : "sphere", | 
| 249 |  | object(), ++nsphs); | 
| 250 |  | printf("0\n0\n4 %18.12g %18.12g %18.12g %18.12g\n", | 
| 263 |  | double  r1, r2; | 
| 264 |  | C_VERTEX        *cv; | 
| 265 |  | FVECT   cent, norm; | 
| 266 | < |  | 
| 266 | > | /* check argument count and type */ | 
| 267 |  | if (ac != 4) | 
| 268 |  | return(MG_EARGC); | 
| 269 |  | if (!isflt(av[2]) || !isflt(av[3])) | 
| 270 |  | return(MG_ETYPE); | 
| 271 | < | if ((cv = c_getvert(av[1])) == NULL) | 
| 271 | > | if ((cv = c_getvert(av[1])) == NULL)    /* get center vertex */ | 
| 272 |  | return(MG_EUNDEF); | 
| 273 | < | if (is0vect(cv->n)) | 
| 273 | > | if (is0vect(cv->n))                     /* make sure we have normal */ | 
| 274 |  | return(MG_EILL); | 
| 275 | < | xf_xfmpoint(cent, cv->p); | 
| 276 | < | xf_rotvect(norm, cv->n); | 
| 277 | < | r1 = xf_scale(atof(av[2])); | 
| 275 | > | xf_xfmpoint(cent, cv->p);               /* transform center */ | 
| 276 | > | xf_rotvect(norm, cv->n);                /* rotate normal */ | 
| 277 | > | r1 = xf_scale(atof(av[2]));             /* scale radii */ | 
| 278 |  | r2 = xf_scale(atof(av[3])); | 
| 279 |  | if (r1 < 0. | r2 <= r1) | 
| 280 |  | return(MG_EILL); | 
| 281 | < | if ((mat = material()) == NULL) | 
| 281 | > | if ((mat = material()) == NULL)         /* get material */ | 
| 282 |  | return(MG_EBADMAT); | 
| 283 | + | /* spit out primitive */ | 
| 284 |  | printf("\n%s ring %sr%d\n", mat, object(), ++nrings); | 
| 285 |  | printf("0\n0\n8\n"); | 
| 286 |  | putv(cent); | 
| 301 |  | register C_VERTEX       *cv; | 
| 302 |  | FVECT   v; | 
| 303 |  | int     rv; | 
| 304 | < |  | 
| 304 | > | /* check argument count and type */ | 
| 305 |  | if (ac < 4) | 
| 306 |  | return(MG_EARGC); | 
| 307 | < | if ((mat = material()) == NULL) | 
| 307 | > | if ((mat = material()) == NULL) /* get material */ | 
| 308 |  | return(MG_EBADMAT); | 
| 309 | < | if (ac <= 5) {                          /* check for surface normals */ | 
| 309 | > | if (ac <= 5) {                          /* check for smoothing */ | 
| 310 |  | for (i = 1; i < ac; i++) { | 
| 311 |  | if ((cv = c_getvert(av[i])) == NULL) | 
| 312 |  | return(MG_EUNDEF); | 
| 320 |  | return(MG_OK); | 
| 321 |  | } | 
| 322 |  | } | 
| 323 | + | /* spit out unsmoothed primitive */ | 
| 324 |  | printf("\n%s polygon %sf%d\n", mat, object(), ++nfaces); | 
| 325 |  | printf("0\n0\n%d\n", 3*(ac-1)); | 
| 326 | < | for (i = 1; i < ac; i++) { | 
| 326 | > | for (i = 1; i < ac; i++) {      /* get, transform, print each vertex */ | 
| 327 |  | if ((cv = c_getvert(av[invert ? ac-i : i])) == NULL) | 
| 328 |  | return(MG_EUNDEF); | 
| 329 |  | xf_xfmpoint(v, cv->p); | 
| 344 |  | char    *oname; | 
| 345 |  | register char   *op; | 
| 346 |  | register int    i; | 
| 347 | < |  | 
| 347 | > | /* check argument count */ | 
| 348 |  | if (ac < 2) | 
| 349 |  | return(MG_EARGC); | 
| 350 | < | (void)strcpy(combuf, "ies2rad"); | 
| 334 | < | op = combuf + 7;                /* get -m option (must be first) */ | 
| 335 | < | if (ac-xa0 >= 2 && !strcmp(av[xa0], "-m")) { | 
| 336 | < | if (!isflt(av[xa0+1])) | 
| 337 | < | return(MG_ETYPE); | 
| 338 | < | op = addarg(addarg(op, "-m"), av[xa0+1]); | 
| 339 | < | xa0 += 2; | 
| 340 | < | } | 
| 341 | < | *op++ = ' ';                    /* build IES filename */ | 
| 342 | < | i = 0; | 
| 343 | < | if (mg_file != NULL && | 
| 344 | < | (oname = strrchr(mg_file->fname, '/')) != NULL) { | 
| 345 | < | i = oname - mg_file->fname + 1; | 
| 346 | < | (void)strcpy(op, mg_file->fname); | 
| 347 | < | } | 
| 348 | < | (void)strcpy(op+i, av[1]); | 
| 349 | < | if (access(op, 0) == -1) | 
| 350 | < | return(MG_ENOFILE); | 
| 351 | < | system(combuf);                 /* run ies2rad */ | 
| 352 | < | /* now let's find the output file */ | 
| 350 | > | /* construct output file name */ | 
| 351 |  | if ((op = strrchr(av[1], '/')) == NULL) | 
| 352 |  | op = av[1]; | 
| 353 |  | (void)strcpy(fname, op); | 
| 354 |  | if ((op = strrchr(fname, '.')) == NULL) | 
| 355 |  | op = fname + strlen(fname); | 
| 356 |  | (void)strcpy(op, ".rad"); | 
| 357 | < | if (access(fname, 0) == -1) | 
| 358 | < | return(MG_EINCL); | 
| 359 | < | /* put out xform command */ | 
| 360 | < | printf("\n!xform"); | 
| 357 | > | /* see if we need to run ies2rad */ | 
| 358 | > | if (access(fname, 0) == -1) { | 
| 359 | > | (void)strcpy(combuf, "ies2rad");/* build ies2rad command */ | 
| 360 | > | op = combuf + 7;                /* get -m option (first) */ | 
| 361 | > | if (ac-xa0 >= 2 && !strcmp(av[xa0], "-m")) { | 
| 362 | > | if (!isflt(av[xa0+1])) | 
| 363 | > | return(MG_ETYPE); | 
| 364 | > | op = addarg(addarg(op, "-m"), av[xa0+1]); | 
| 365 | > | xa0 += 2; | 
| 366 | > | } | 
| 367 | > | *op++ = ' ';                    /* build IES filename */ | 
| 368 | > | i = 0; | 
| 369 | > | if (mg_file != NULL && | 
| 370 | > | (oname = strrchr(mg_file->fname,'/')) != NULL) { | 
| 371 | > | i = oname - mg_file->fname + 1; | 
| 372 | > | (void)strcpy(op, mg_file->fname); | 
| 373 | > | } | 
| 374 | > | (void)strcpy(op+i, av[1]); | 
| 375 | > | if (access(op, 0) == -1)        /* check for file existence */ | 
| 376 | > | return(MG_ENOFILE); | 
| 377 | > | system(combuf);                 /* run ies2rad */ | 
| 378 | > | if (access(fname, 0) == -1)     /* check success */ | 
| 379 | > | return(MG_EINCL); | 
| 380 | > | } | 
| 381 | > | printf("\n!xform");                     /* put out xform command */ | 
| 382 |  | oname = object(); | 
| 383 |  | if (*oname) { | 
| 384 |  | printf(" -n "); | 
| 418 |  | xf_xfmpoint(v1, cv1->p); | 
| 419 |  | xf_xfmpoint(v2, cv2->p); | 
| 420 |  | xf_xfmpoint(v3, cv3->p); | 
| 421 | + | /* compute barycentric coords. */ | 
| 422 |  | if (comp_baryc(&bvecs, v1, v2, v3) < 0) | 
| 423 |  | return;                         /* degenerate triangle! */ | 
| 424 | < | printf("\n%s texfunc T-nor\n", mat); | 
| 424 | > | printf("\n%s texfunc T-nor\n", mat);    /* put out texture */ | 
| 425 |  | printf("4 dx dy dz %s\n0\n", TCALNAME); | 
| 426 |  | xf_rotvect(n1, cv1->n); | 
| 427 |  | xf_rotvect(n2, cv2->n); | 
| 432 |  | bcoor[i][2] = n3[i]; | 
| 433 |  | } | 
| 434 |  | put_baryc(&bvecs, bcoor, 3); | 
| 435 | + | /* put out triangle */ | 
| 436 |  | printf("\nT-nor polygon %st%d\n", object(), ++ntris); | 
| 437 |  | printf("0\n0\n9\n"); | 
| 438 |  | putv(v1); | 
| 539 |  | return(mname); | 
| 540 |  | } | 
| 541 |  | /* check for plastic */ | 
| 542 | < | if (c_cmaterial->rs < .1 && (c_cmaterial->rs < .01 || | 
| 522 | < | c_isgrey(&c_cmaterial->rs_c))) { | 
| 542 | > | if (c_cmaterial->rs < .1) { | 
| 543 |  | cvtcolor(radrgb, &c_cmaterial->rd_c, | 
| 544 |  | c_cmaterial->rd/(1.-c_cmaterial->rs)); | 
| 545 |  | fprintf(matfp, "\nvoid plastic %s\n0\n0\n", mname); | 
| 562 |  | } | 
| 563 |  |  | 
| 564 |  |  | 
| 565 | < | cvtcolor(radrgb, ciec, intensity)       /* convert a CIE color to Radiance */ | 
| 565 | > | cvtcolor(radrgb, ciec, intensity)       /* convert a CIE XYZ color to RGB */ | 
| 566 |  | COLOR   radrgb; | 
| 567 |  | register C_COLOR        *ciec; | 
| 568 |  | double  intensity; | 
| 584 |  | register int    i; | 
| 585 |  | register char   *cp; | 
| 586 |  | int     len; | 
| 587 | < |  | 
| 587 | > | /* tracked by obj_handler */ | 
| 588 |  | i = obj_nnames - sizeof(objbuf)/16; | 
| 589 |  | if (i < 0) | 
| 590 |  | i = 0; |