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/* Copyright (c) 1994 Regents of the University of California */ |
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/* Copyright (c) 1996 Regents of the University of California */ |
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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int argc; |
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char *argv[]; |
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{ |
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int i, rv; |
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int i; |
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/* print out parser version */ |
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printf("## Translated from MGF Version %d.%d\n", MG_VMAJOR, MG_VMINOR); |
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/* initialize dispatch table */ |
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mg_ehand[MG_E_COMMENT] = r_comment; |
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mg_ehand[MG_E_COLOR] = c_hcolor; |
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mg_ehand[MG_E_CONE] = r_cone; |
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mg_ehand[MG_E_CMIX] = c_hcolor; |
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mg_ehand[MG_E_CSPEC] = c_hcolor; |
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mg_ehand[MG_E_CXY] = c_hcolor; |
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mg_ehand[MG_E_CCT] = c_hcolor; |
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mg_ehand[MG_E_CYL] = r_cyl; |
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mg_ehand[MG_E_ED] = c_hmaterial; |
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mg_ehand[MG_E_FACE] = r_face; |
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mg_ehand[MG_E_IES] = r_ies; |
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mg_ehand[MG_E_IR] = c_hmaterial; |
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mg_ehand[MG_E_MATERIAL] = c_hmaterial; |
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mg_ehand[MG_E_NORMAL] = c_hvertex; |
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mg_ehand[MG_E_OBJECT] = obj_handler; |
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mg_ehand[MG_E_POINT] = c_hvertex; |
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mg_ehand[MG_E_RD] = c_hmaterial; |
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mg_ehand[MG_E_RING] = r_ring; |
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mg_ehand[MG_E_RS] = c_hmaterial; |
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mg_ehand[MG_E_SIDES] = c_hmaterial; |
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mg_ehand[MG_E_SPH] = r_sph; |
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mg_ehand[MG_E_TD] = c_hmaterial; |
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mg_ehand[MG_E_TS] = c_hmaterial; |
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mg_ehand[MG_E_VERTEX] = c_hvertex; |
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mg_ehand[MG_E_XF] = xf_handler; |
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mg_ehand[MG_E_COMMENT] = r_comment; /* we pass comments */ |
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mg_ehand[MG_E_COLOR] = c_hcolor; /* they get color */ |
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mg_ehand[MG_E_CONE] = r_cone; /* we do cones */ |
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mg_ehand[MG_E_CMIX] = c_hcolor; /* they mix colors */ |
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mg_ehand[MG_E_CSPEC] = c_hcolor; /* they get spectra */ |
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mg_ehand[MG_E_CXY] = c_hcolor; /* they get chromaticities */ |
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mg_ehand[MG_E_CCT] = c_hcolor; /* they get color temp's */ |
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mg_ehand[MG_E_CYL] = r_cyl; /* we do cylinders */ |
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mg_ehand[MG_E_ED] = c_hmaterial; /* they get emission */ |
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mg_ehand[MG_E_FACE] = r_face; /* we do faces */ |
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mg_ehand[MG_E_IES] = r_ies; /* we do IES files */ |
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mg_ehand[MG_E_IR] = c_hmaterial; /* they get refractive index */ |
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mg_ehand[MG_E_MATERIAL] = c_hmaterial; /* they get materials */ |
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mg_ehand[MG_E_NORMAL] = c_hvertex; /* they get normals */ |
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mg_ehand[MG_E_OBJECT] = obj_handler; /* they track object names */ |
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mg_ehand[MG_E_POINT] = c_hvertex; /* they get points */ |
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mg_ehand[MG_E_RD] = c_hmaterial; /* they get diffuse refl. */ |
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mg_ehand[MG_E_RING] = r_ring; /* we do rings */ |
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mg_ehand[MG_E_RS] = c_hmaterial; /* they get specular refl. */ |
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mg_ehand[MG_E_SIDES] = c_hmaterial; /* they get # sides */ |
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mg_ehand[MG_E_SPH] = r_sph; /* we do spheres */ |
61 |
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mg_ehand[MG_E_TD] = c_hmaterial; /* they get diffuse trans. */ |
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mg_ehand[MG_E_TS] = c_hmaterial; /* they get specular trans. */ |
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mg_ehand[MG_E_VERTEX] = c_hvertex; /* they get vertices */ |
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mg_ehand[MG_E_XF] = xf_handler; /* they track transforms */ |
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mg_init(); /* initialize the parser */ |
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/* get options & print header */ |
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/* get our options & print header */ |
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printf("## %s", argv[0]); |
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for (i = 1; i < argc && argv[i][0] == '-'; i++) { |
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printf(" %s", argv[i]); |
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} |
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putchar('\n'); |
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if (i == argc) { /* convert stdin */ |
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if ((rv = mg_load(NULL)) != MG_OK) |
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if (mg_load(NULL) != MG_OK) |
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exit(1); |
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if (mg_nunknown) |
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printf("## %s: %u unknown entities\n", |
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argv[0], mg_nunknown); |
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} else /* convert each file */ |
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for ( ; i < argc; i++) { |
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printf("## %s %s ##############################\n", |
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argv[0], argv[i]); |
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if ((rv = mg_load(argv[i])) != MG_OK) |
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if (mg_load(argv[i]) != MG_OK) |
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exit(1); |
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if (mg_nunknown) { |
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printf("## %s %s: %u unknown entities\n", |
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argv[0], argv[i], mg_nunknown); |
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mg_nunknown = 0; |
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} |
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} |
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exit(0); |
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userr: |
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register char **av; |
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{ |
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putchar('#'); /* use Radiance comment character */ |
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while (--ac) { |
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while (--ac) { /* pass through verbatim */ |
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putchar(' '); |
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fputs(*++av, stdout); |
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} |
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C_VERTEX *cv1, *cv2; |
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FVECT p1, p2; |
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int inv; |
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/* check argument count and type */ |
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if (ac != 5) |
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return(MG_EARGC); |
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if (!isflt(av[2]) || !isflt(av[4])) |
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return(MG_ETYPE); |
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/* get the endpoint vertices */ |
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if ((cv1 = c_getvert(av[1])) == NULL || |
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(cv2 = c_getvert(av[3])) == NULL) |
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return(MG_EUNDEF); |
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xf_xfmpoint(p1, cv1->p); |
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xf_xfmpoint(p1, cv1->p); /* transform endpoints */ |
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xf_xfmpoint(p2, cv2->p); |
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r1 = xf_scale(atof(av[2])); |
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r1 = xf_scale(atof(av[2])); /* scale radii */ |
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r2 = xf_scale(atof(av[4])); |
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inv = r1 < 0.; |
162 |
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if (r1 == 0.) { |
161 |
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inv = r1 < 0.; /* check for inverted cone */ |
162 |
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if (r1 == 0.) { /* check for illegal radii */ |
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if (r2 == 0.) |
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return(MG_EILL); |
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inv = r2 < 0.; |
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r1 = -r1; |
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r2 = -r2; |
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} |
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if ((mat = material()) == NULL) |
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if ((mat = material()) == NULL) /* get material */ |
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return(MG_EBADMAT); |
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/* spit the sucker out */ |
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printf("\n%s %s %sc%d\n", mat, inv ? "cup" : "cone", |
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object(), ++ncones); |
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printf("0\n0\n8\n"); |
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C_VERTEX *cv1, *cv2; |
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FVECT p1, p2; |
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int inv; |
196 |
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|
196 |
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/* check argument count and type */ |
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if (ac != 4) |
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return(MG_EARGC); |
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if (!isflt(av[2])) |
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return(MG_ETYPE); |
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/* get the endpoint vertices */ |
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if ((cv1 = c_getvert(av[1])) == NULL || |
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(cv2 = c_getvert(av[3])) == NULL) |
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return(MG_EUNDEF); |
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xf_xfmpoint(p1, cv1->p); |
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xf_xfmpoint(p1, cv1->p); /* transform endpoints */ |
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xf_xfmpoint(p2, cv2->p); |
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rad = xf_scale(atof(av[2])); |
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if ((inv = rad < 0.)) |
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rad = xf_scale(atof(av[2])); /* scale radius */ |
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if ((inv = rad < 0.)) /* check for inverted cylinder */ |
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rad = -rad; |
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if ((mat = material()) == NULL) |
210 |
> |
if ((mat = material()) == NULL) /* get material */ |
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return(MG_EBADMAT); |
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/* spit out the primitive */ |
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printf("\n%s %s %scy%d\n", mat, inv ? "tube" : "cylinder", |
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object(), ++ncyls); |
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printf("0\n0\n7\n"); |
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C_VERTEX *cv; |
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FVECT cent; |
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int inv; |
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|
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/* check argument count and type */ |
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if (ac != 3) |
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return(MG_EARGC); |
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if (!isflt(av[2])) |
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return(MG_ETYPE); |
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if ((cv = c_getvert(av[1])) == NULL) |
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> |
if ((cv = c_getvert(av[1])) == NULL) /* get center vertex */ |
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return(MG_EUNDEF); |
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xf_xfmpoint(cent, cv->p); |
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rad = xf_scale(atof(av[2])); |
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if ((inv = rad < 0.)) |
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xf_xfmpoint(cent, cv->p); /* transform center */ |
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rad = xf_scale(atof(av[2])); /* scale radius */ |
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if ((inv = rad < 0.)) /* check for inversion */ |
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rad = -rad; |
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if ((mat = material()) == NULL) |
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> |
if ((mat = material()) == NULL) /* get material */ |
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return(MG_EBADMAT); |
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/* spit out primitive */ |
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printf("\n%s %s %ss%d\n", mat, inv ? "bubble" : "sphere", |
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object(), ++nsphs); |
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printf("0\n0\n4 %18.12g %18.12g %18.12g %18.12g\n", |
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double r1, r2; |
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C_VERTEX *cv; |
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FVECT cent, norm; |
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|
266 |
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/* check argument count and type */ |
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if (ac != 4) |
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return(MG_EARGC); |
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if (!isflt(av[2]) || !isflt(av[3])) |
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return(MG_ETYPE); |
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< |
if ((cv = c_getvert(av[1])) == NULL) |
271 |
> |
if ((cv = c_getvert(av[1])) == NULL) /* get center vertex */ |
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return(MG_EUNDEF); |
273 |
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if (is0vect(cv->n)) |
273 |
> |
if (is0vect(cv->n)) /* make sure we have normal */ |
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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 |
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r2 = xf_scale(atof(av[3])); |
279 |
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if (r1 < 0. | r2 <= r1) |
280 |
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return(MG_EILL); |
281 |
< |
if ((mat = material()) == NULL) |
281 |
> |
if ((mat = material()) == NULL) /* get material */ |
282 |
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return(MG_EBADMAT); |
283 |
+ |
/* spit out primitive */ |
284 |
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printf("\n%s ring %sr%d\n", mat, object(), ++nrings); |
285 |
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printf("0\n0\n8\n"); |
286 |
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putv(cent); |
301 |
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register C_VERTEX *cv; |
302 |
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FVECT v; |
303 |
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int rv; |
304 |
< |
|
304 |
> |
/* check argument count and type */ |
305 |
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if (ac < 4) |
306 |
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return(MG_EARGC); |
307 |
< |
if ((mat = material()) == NULL) |
307 |
> |
if ((mat = material()) == NULL) /* get material */ |
308 |
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return(MG_EBADMAT); |
309 |
< |
if (ac <= 5) { /* check for surface normals */ |
309 |
> |
if (ac <= 5) { /* check for smoothing */ |
310 |
> |
C_VERTEX *cva[5]; |
311 |
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for (i = 1; i < ac; i++) { |
312 |
< |
if ((cv = c_getvert(av[i])) == NULL) |
312 |
> |
if ((cva[i-1] = c_getvert(av[i])) == NULL) |
313 |
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return(MG_EUNDEF); |
314 |
< |
if (is0vect(cv->n)) |
314 |
> |
if (is0vect(cva[i-1]->n)) |
315 |
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break; |
316 |
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} |
317 |
< |
if (i == ac) { /* break into triangles */ |
318 |
< |
do_tri(mat, av[1], av[2], av[3]); |
317 |
> |
if (i == ac) { |
318 |
> |
i = flat_tri(cva[0]->p, cva[1]->p, cva[2]->p, |
319 |
> |
cva[0]->n, cva[1]->n, cva[2]->n); |
320 |
> |
if (i < 0) |
321 |
> |
return(MG_OK); /* degenerate (error?) */ |
322 |
> |
} |
323 |
> |
if (!i) { /* smoothed triangles */ |
324 |
> |
do_tri(mat, cva[0], cva[1], cva[2]); |
325 |
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if (ac == 5) |
326 |
< |
do_tri(mat, av[3], av[4], av[1]); |
326 |
> |
do_tri(mat, cva[2], cva[3], cva[0]); |
327 |
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return(MG_OK); |
328 |
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} |
329 |
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} |
330 |
+ |
/* spit out unsmoothed primitive */ |
331 |
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printf("\n%s polygon %sf%d\n", mat, object(), ++nfaces); |
332 |
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printf("0\n0\n%d\n", 3*(ac-1)); |
333 |
< |
for (i = 1; i < ac; i++) { |
333 |
> |
for (i = 1; i < ac; i++) { /* get, transform, print each vertex */ |
334 |
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if ((cv = c_getvert(av[invert ? ac-i : i])) == NULL) |
335 |
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return(MG_EUNDEF); |
336 |
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xf_xfmpoint(v, cv->p); |
351 |
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char *oname; |
352 |
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register char *op; |
353 |
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register int i; |
354 |
< |
|
354 |
> |
/* check argument count */ |
355 |
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if (ac < 2) |
356 |
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return(MG_EARGC); |
357 |
< |
(void)strcpy(combuf, "ies2rad"); |
358 |
< |
op = combuf + 7; /* get -m option (must be first) */ |
359 |
< |
if (ac-xa0 >= 2 && !strcmp(av[xa0], "-m")) { |
360 |
< |
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 */ |
353 |
< |
if ((op = strrchr(av[1], '/')) == NULL) |
357 |
> |
/* construct output file name */ |
358 |
> |
if ((op = strrchr(av[1], '/')) != NULL) |
359 |
> |
op++; |
360 |
> |
else |
361 |
|
op = av[1]; |
362 |
|
(void)strcpy(fname, op); |
363 |
|
if ((op = strrchr(fname, '.')) == NULL) |
364 |
|
op = fname + strlen(fname); |
365 |
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(void)strcpy(op, ".rad"); |
366 |
< |
if (access(fname, 0) == -1) |
367 |
< |
return(MG_EINCL); |
368 |
< |
/* put out xform command */ |
369 |
< |
printf("\n!xform"); |
366 |
> |
/* see if we need to run ies2rad */ |
367 |
> |
if (access(fname, 0) == -1) { |
368 |
> |
(void)strcpy(combuf, "ies2rad");/* build ies2rad command */ |
369 |
> |
op = combuf + 7; /* get -m option (first) */ |
370 |
> |
if (ac-xa0 >= 2 && !strcmp(av[xa0], "-m")) { |
371 |
> |
if (!isflt(av[xa0+1])) |
372 |
> |
return(MG_ETYPE); |
373 |
> |
op = addarg(addarg(op, "-m"), av[xa0+1]); |
374 |
> |
xa0 += 2; |
375 |
> |
} |
376 |
> |
*op++ = ' '; /* build IES filename */ |
377 |
> |
i = 0; |
378 |
> |
if (mg_file != NULL && |
379 |
> |
(oname = strrchr(mg_file->fname,'/')) != NULL) { |
380 |
> |
i = oname - mg_file->fname + 1; |
381 |
> |
(void)strcpy(op, mg_file->fname); |
382 |
> |
} |
383 |
> |
(void)strcpy(op+i, av[1]); |
384 |
> |
if (access(op, 0) == -1) /* check for file existence */ |
385 |
> |
return(MG_ENOFILE); |
386 |
> |
system(combuf); /* run ies2rad */ |
387 |
> |
if (access(fname, 0) == -1) /* check success */ |
388 |
> |
return(MG_EINCL); |
389 |
> |
} |
390 |
> |
printf("\n!xform"); /* put out xform command */ |
391 |
|
oname = object(); |
392 |
|
if (*oname) { |
393 |
|
printf(" -n "); |
405 |
|
} |
406 |
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|
407 |
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|
408 |
< |
do_tri(mat, vn1, vn2, vn3) /* put out smoothed triangle */ |
409 |
< |
char *mat, *vn1, *vn2, *vn3; |
408 |
> |
do_tri(mat, cv1, cv2, cv3) /* put out smoothed triangle */ |
409 |
> |
char *mat; |
410 |
> |
C_VERTEX *cv1, *cv2, *cv3; |
411 |
|
{ |
412 |
|
static int ntris; |
413 |
|
BARYCCM bvecs; |
414 |
|
FLOAT bcoor[3][3]; |
415 |
< |
C_VERTEX *cv1, *cv2, *cv3; |
415 |
> |
C_VERTEX *cvt; |
416 |
|
FVECT v1, v2, v3; |
417 |
|
FVECT n1, n2, n3; |
418 |
|
register int i; |
419 |
< |
/* the following is repeat code, so assume it's OK */ |
420 |
< |
cv2 = c_getvert(vn2); |
421 |
< |
if (invert) { |
422 |
< |
cv3 = c_getvert(vn1); |
423 |
< |
cv1 = c_getvert(vn3); |
395 |
< |
} else { |
396 |
< |
cv1 = c_getvert(vn1); |
397 |
< |
cv3 = c_getvert(vn3); |
419 |
> |
|
420 |
> |
if (invert) { /* swap vertex order if inverted */ |
421 |
> |
cvt = cv1; |
422 |
> |
cv1 = cv3; |
423 |
> |
cv3 = cvt; |
424 |
|
} |
425 |
|
xf_xfmpoint(v1, cv1->p); |
426 |
|
xf_xfmpoint(v2, cv2->p); |
427 |
|
xf_xfmpoint(v3, cv3->p); |
428 |
+ |
/* compute barycentric coords. */ |
429 |
|
if (comp_baryc(&bvecs, v1, v2, v3) < 0) |
430 |
|
return; /* degenerate triangle! */ |
431 |
< |
printf("\n%s texfunc T-nor\n", mat); |
431 |
> |
printf("\n%s texfunc T-nor\n", mat); /* put out texture */ |
432 |
|
printf("4 dx dy dz %s\n0\n", TCALNAME); |
433 |
|
xf_rotvect(n1, cv1->n); |
434 |
|
xf_rotvect(n2, cv2->n); |
439 |
|
bcoor[i][2] = n3[i]; |
440 |
|
} |
441 |
|
put_baryc(&bvecs, bcoor, 3); |
442 |
+ |
/* put out triangle */ |
443 |
|
printf("\nT-nor polygon %st%d\n", object(), ++ntris); |
444 |
|
printf("0\n0\n9\n"); |
445 |
|
putv(v1); |
546 |
|
return(mname); |
547 |
|
} |
548 |
|
/* check for plastic */ |
549 |
< |
if (c_cmaterial->rs < .1 && (c_cmaterial->rs < .01 || |
522 |
< |
c_isgrey(&c_cmaterial->rs_c))) { |
549 |
> |
if (c_cmaterial->rs < .1) { |
550 |
|
cvtcolor(radrgb, &c_cmaterial->rd_c, |
551 |
|
c_cmaterial->rd/(1.-c_cmaterial->rs)); |
552 |
|
fprintf(matfp, "\nvoid plastic %s\n0\n0\n", mname); |
569 |
|
} |
570 |
|
|
571 |
|
|
572 |
< |
cvtcolor(radrgb, ciec, intensity) /* convert a CIE color to Radiance */ |
572 |
> |
cvtcolor(radrgb, ciec, intensity) /* convert a CIE XYZ color to RGB */ |
573 |
|
COLOR radrgb; |
574 |
|
register C_COLOR *ciec; |
575 |
|
double intensity; |
591 |
|
register int i; |
592 |
|
register char *cp; |
593 |
|
int len; |
594 |
< |
|
594 |
> |
/* tracked by obj_handler */ |
595 |
|
i = obj_nnames - sizeof(objbuf)/16; |
596 |
|
if (i < 0) |
597 |
|
i = 0; |