| 5 |  | *  Plot 3-D BSDF output based on scattering interpolant or XML representation | 
| 6 |  | */ | 
| 7 |  |  | 
| 8 | – | #include <stdio.h> | 
| 9 | – | #include <string.h> | 
| 8 |  | #include <stdlib.h> | 
| 9 | + | #include "rtio.h" | 
| 10 |  | #include "paths.h" | 
| 11 |  | #include "rtmath.h" | 
| 13 | – | #include "resolu.h" | 
| 12 |  | #include "bsdfrep.h" | 
| 13 |  |  | 
| 14 | + | #ifndef NINCIDENT | 
| 15 |  | #define NINCIDENT       37              /* number of samples/hemisphere */ | 
| 16 | < |  | 
| 16 | > | #endif | 
| 17 | > | #ifndef GRIDSTEP | 
| 18 |  | #define GRIDSTEP        2               /* our grid step size */ | 
| 19 | + | #endif | 
| 20 |  | #define SAMPRES         (GRIDRES/GRIDSTEP) | 
| 21 |  |  | 
| 22 |  | int     front_comp = 0;                 /* front component flags (SDsamp*) */ | 
| 25 |  | double  min_log10;                      /* smallest log10 value for plotting */ | 
| 26 |  | double  overall_max = .0;               /* overall maximum BSDF value */ | 
| 27 |  |  | 
| 28 | < | char    ourTempDir[TEMPLEN] = "";       /* our temporary directory */ | 
| 28 | > | char    ourTempDir[TEMPLEN+1] = "";     /* our temporary directory */ | 
| 29 |  |  | 
| 30 | < | const FVECT     Xaxis = {1., 0., 0.}; | 
| 31 | < | const FVECT     Yaxis = {0., 1., 0.}; | 
| 32 | < | const FVECT     Zaxis = {0., 0., 1.}; | 
| 33 | < |  | 
| 33 | < | const char      frpref[] = "frefl"; | 
| 34 | < | const char      ftpref[] = "ftrans"; | 
| 35 | < | const char      brpref[] = "brefl"; | 
| 36 | < | const char      btpref[] = "btrans"; | 
| 30 | > | const char      frpref[] = "rf"; | 
| 31 | > | const char      ftpref[] = "tf"; | 
| 32 | > | const char      brpref[] = "rb"; | 
| 33 | > | const char      btpref[] = "tb"; | 
| 34 |  | const char      dsuffix[] = ".txt"; | 
| 35 |  |  | 
| 36 | < | const char      sph_mat[] = "BSDFmat"; | 
| 36 | > | const char      sph_fmat[] = "fBSDFmat"; | 
| 37 | > | const char      sph_bmat[] = "bBSDFmat"; | 
| 38 |  | const double    sph_rad = 10.; | 
| 39 |  | const double    sph_xoffset = 15.; | 
| 40 |  |  | 
| 41 |  | #define bsdf_rad        (sph_rad*.25) | 
| 42 |  | #define arrow_rad       (bsdf_rad*.015) | 
| 43 |  |  | 
| 44 | < | #define FEQ(a,b)        ((a)-(b) <= 1e-7 && (b)-(a) <= 1e-7) | 
| 44 | > | #define set_minlog()    overall_min = (overall_min < 1e-5) ? 1e-5 : overall_min; \ | 
| 45 | > | min_log10 = log10(overall_min) - .1 | 
| 46 |  |  | 
| 48 | – | #define set_minlog()    (min_log10 = log10(overall_min + 1e-5) - .1) | 
| 49 | – |  | 
| 47 |  | char    *progname; | 
| 48 |  |  | 
| 49 |  | /* Get Fibonacci sphere vector (0 to NINCIDENT-1) */ | 
| 50 | < | static void | 
| 50 | > | static RREAL * | 
| 51 |  | get_ivector(FVECT iv, int i) | 
| 52 |  | { | 
| 53 |  | const double    phistep = PI*(3. - 2.236067978); | 
| 57 |  | r = sqrt(1. - iv[2]*iv[2]); | 
| 58 |  | iv[0] = r * cos((i+1.)*phistep); | 
| 59 |  | iv[1] = r * sin((i+1.)*phistep); | 
| 60 | + |  | 
| 61 | + | return(iv); | 
| 62 |  | } | 
| 63 |  |  | 
| 64 | + | /* Convert incident vector into sphere position */ | 
| 65 | + | static RREAL * | 
| 66 | + | cvt_sposition(FVECT sp, const FVECT iv, int inc_side) | 
| 67 | + | { | 
| 68 | + | sp[0] = -iv[0]*sph_rad + inc_side*sph_xoffset; | 
| 69 | + | sp[1] = -iv[1]*sph_rad; | 
| 70 | + | sp[2] = iv[2]*sph_rad; | 
| 71 | + |  | 
| 72 | + | return(sp); | 
| 73 | + | } | 
| 74 | + |  | 
| 75 |  | /* Get temporary file name */ | 
| 76 |  | static char * | 
| 77 |  | tfile_name(const char *prefix, const char *suffix, int i) | 
| 78 |  | { | 
| 79 | < | static char     buf[128]; | 
| 79 | > | static char     buf[256]; | 
| 80 |  |  | 
| 81 |  | if (!ourTempDir[0]) {           /* create temporary directory */ | 
| 82 |  | mktemp(strcpy(ourTempDir,TEMPLATE)); | 
| 258 |  | RBFNODE *rbf; | 
| 259 |  | get_ivector(ivec, i); | 
| 260 |  | if (input_orient < 0) { | 
| 261 | < | ivec[0] = -ivec[0]; ivec[1] = -ivec[1]; ivec[2] = -ivec[2]; | 
| 261 | > | ivec[0] = -ivec[0]; ivec[2] = -ivec[2]; | 
| 262 |  | } | 
| 263 |  | rbf = advect_rbf(ivec, 15000); | 
| 264 |  | if (!plotRBF(tfile_name(pref, dsuffix, i), rbf)) | 
| 270 |  |  | 
| 271 |  | /* Put out mirror arrow for the given incident vector */ | 
| 272 |  | static void | 
| 273 | < | put_mirror_arrow(const FVECT ivec, int inc_side) | 
| 273 | > | put_mirror_arrow(const FVECT origin, const FVECT nrm) | 
| 274 |  | { | 
| 275 |  | const double    arrow_len = 1.2*bsdf_rad; | 
| 276 |  | const double    tip_len = 0.2*bsdf_rad; | 
| 277 | < | FVECT           origin, refl; | 
| 277 | > | static int      cnt = 1; | 
| 278 | > | FVECT           refl; | 
| 279 |  | int             i; | 
| 280 |  |  | 
| 281 | < | for (i = 3; i--; ) origin[i] = ivec[i]*sph_rad; | 
| 282 | < | origin[0] -= inc_side*sph_xoffset; | 
| 281 | > | refl[0] = 2.*nrm[2]*nrm[0]; | 
| 282 | > | refl[1] = 2.*nrm[2]*nrm[1]; | 
| 283 | > | refl[2] = 2.*nrm[2]*nrm[2] - 1.; | 
| 284 |  |  | 
| 285 | < | refl[0] = 2.*ivec[2]*ivec[0]; | 
| 286 | < | refl[1] = 2.*ivec[2]*ivec[1]; | 
| 275 | < | refl[2] = 2.*ivec[2]*ivec[2] - 1.; | 
| 276 | < |  | 
| 277 | < | printf("\n# Mirror arrow\n"); | 
| 278 | < | printf("\narrow_mat cylinder inc_dir\n0\n0\n7"); | 
| 285 | > | printf("\n# Mirror arrow #%d\n", cnt); | 
| 286 | > | printf("\nshaft_mat cylinder inc_dir%d\n0\n0\n7", cnt); | 
| 287 |  | printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", | 
| 288 |  | origin[0], origin[1], origin[2]+arrow_len, | 
| 289 |  | origin[0], origin[1], origin[2], | 
| 290 |  | arrow_rad); | 
| 291 | < | printf("\narrow_mat cylinder mir_dir\n0\n0\n7"); | 
| 291 | > | printf("\nshaft_mat cylinder mir_dir%d\n0\n0\n7", cnt); | 
| 292 |  | printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", | 
| 293 |  | origin[0], origin[1], origin[2], | 
| 294 |  | origin[0] + arrow_len*refl[0], | 
| 295 |  | origin[1] + arrow_len*refl[1], | 
| 296 |  | origin[2] + arrow_len*refl[2], | 
| 297 |  | arrow_rad); | 
| 298 | < | printf("\narrow_mat cone mir_tip\n0\n0\n8"); | 
| 298 | > | printf("\ntip_mat cone mir_tip%d\n0\n0\n8", cnt); | 
| 299 |  | printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", | 
| 300 |  | origin[0] + (arrow_len-.5*tip_len)*refl[0], | 
| 301 |  | origin[1] + (arrow_len-.5*tip_len)*refl[1], | 
| 304 |  | origin[1] + (arrow_len+.5*tip_len)*refl[1], | 
| 305 |  | origin[2] + (arrow_len+.5*tip_len)*refl[2], | 
| 306 |  | 2.*arrow_rad); | 
| 307 | + | ++cnt; | 
| 308 |  | } | 
| 309 |  |  | 
| 310 |  | /* Put out transmitted direction arrow for the given incident vector */ | 
| 311 |  | static void | 
| 312 | < | put_trans_arrow(const FVECT ivec, int inc_side) | 
| 312 | > | put_trans_arrow(const FVECT origin) | 
| 313 |  | { | 
| 314 |  | const double    arrow_len = 1.2*bsdf_rad; | 
| 315 |  | const double    tip_len = 0.2*bsdf_rad; | 
| 316 | < | FVECT           origin; | 
| 316 | > | static int      cnt = 1; | 
| 317 |  | int             i; | 
| 318 |  |  | 
| 319 | < | for (i = 3; i--; ) origin[i] = ivec[i]*sph_rad; | 
| 320 | < | origin[0] -= inc_side*sph_xoffset; | 
| 312 | < |  | 
| 313 | < | printf("\n# Transmission arrow\n"); | 
| 314 | < | printf("\narrow_mat cylinder trans_dir\n0\n0\n7"); | 
| 319 | > | printf("\n# Transmission arrow #%d\n", cnt); | 
| 320 | > | printf("\nshaft_mat cylinder trans_dir%d\n0\n0\n7", cnt); | 
| 321 |  | printf("\n\t%f %f %f\n\t%f %f %f\n\t%f\n", | 
| 322 |  | origin[0], origin[1], origin[2], | 
| 323 |  | origin[0], origin[1], origin[2]-arrow_len, | 
| 324 |  | arrow_rad); | 
| 325 | < | printf("\narrow_mat cone trans_tip\n0\n0\n8"); | 
| 325 | > | printf("\ntip_mat cone trans_tip%d\n0\n0\n8", cnt); | 
| 326 |  | printf("\n\t%f %f %f\n\t%f %f %f\n\t%f 0\n", | 
| 327 |  | origin[0], origin[1], origin[2]-arrow_len+.5*tip_len, | 
| 328 |  | origin[0], origin[1], origin[2]-arrow_len-.5*tip_len, | 
| 329 | < | 2.*arrow_rad); | 
| 329 | > | 2.*arrow_rad); | 
| 330 | > | ++cnt; | 
| 331 |  | } | 
| 332 |  |  | 
| 333 |  | /* Compute rotation (x,y,z) => (xp,yp,zp) */ | 
| 346 |  | return(4); | 
| 347 |  | } | 
| 348 |  | theta = atan2(yp[2], zp[2]); | 
| 349 | < | if (!FEQ(theta,0.0)) { | 
| 349 | > | if (!FABSEQ(theta,0.0)) { | 
| 350 |  | sprintf(xf, " -rx %f", theta*(180./PI)); | 
| 351 |  | while (*xf) ++xf; | 
| 352 |  | n += 2; | 
| 353 |  | } | 
| 354 |  | theta = Asin(-xp[2]); | 
| 355 | < | if (!FEQ(theta,0.0)) { | 
| 355 | > | if (!FABSEQ(theta,0.0)) { | 
| 356 |  | sprintf(xf, " -ry %f", theta*(180./PI)); | 
| 357 |  | while (*xf) ++xf; | 
| 358 |  | n += 2; | 
| 359 |  | } | 
| 360 |  | theta = atan2(xp[1], xp[0]); | 
| 361 | < | if (!FEQ(theta,0.0)) { | 
| 361 | > | if (!FABSEQ(theta,0.0)) { | 
| 362 |  | sprintf(xf, " -rz %f", theta*(180./PI)); | 
| 363 |  | /* while (*xf) ++xf; */ | 
| 364 |  | n += 2; | 
| 371 |  | put_BSDFs(void) | 
| 372 |  | { | 
| 373 |  | const double    scalef = bsdf_rad/(log10(overall_max) - min_log10); | 
| 374 | < | FVECT           ivec; | 
| 374 | > | FVECT           ivec, sorg, nrm, upv; | 
| 375 |  | RREAL           vMtx[3][3]; | 
| 376 |  | char            *fname; | 
| 377 |  | char            cmdbuf[256]; | 
| 378 | < | char            xfargs[128]; | 
| 379 | < | int             nxfa; | 
| 378 | > | char            rotargs[64]; | 
| 379 | > | int             nrota; | 
| 380 |  | int             i; | 
| 381 |  |  | 
| 382 |  | printf("\n# Gensurf output corresponding to %d incident directions\n", | 
| 383 |  | NINCIDENT); | 
| 384 |  |  | 
| 385 | < | printf("\nvoid glow arrow_glow\n0\n0\n4 1 0 1 0\n"); | 
| 386 | < | printf("\nvoid mixfunc arrow_mat\n4 arrow_glow void .5 .\n0\n0\n"); | 
| 385 | > | printf("\nvoid glow tip_mat\n0\n0\n4 1 0 1 0\n"); | 
| 386 | > | printf("\nvoid mixfunc shaft_mat\n4 tip_mat void 0.25 .\n0\n0\n"); | 
| 387 |  |  | 
| 388 | < | if (front_comp & SDsampR) | 
| 389 | < | for (i = 0; i < NINCIDENT; i++) { | 
| 390 | < | get_ivector(ivec, i); | 
| 391 | < | put_mirror_arrow(ivec, 1); | 
| 392 | < | sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, | 
| 393 | < | ivec[0]*sph_rad - sph_xoffset, | 
| 394 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 395 | < | nxfa = 6; | 
| 388 | > | for (i = 0; i < NINCIDENT; i++) { | 
| 389 | > | get_ivector(ivec, i); | 
| 390 | > | nrm[0] = -ivec[0]; nrm[1] = -ivec[1]; nrm[2] = ivec[2]; | 
| 391 | > | upv[0] = nrm[0]*nrm[1]*(nrm[2] - 1.); | 
| 392 | > | upv[1] = nrm[0]*nrm[0] + nrm[1]*nrm[1]*nrm[2]; | 
| 393 | > | upv[2] = -nrm[1]*(nrm[0]*nrm[0] + nrm[1]*nrm[1]); | 
| 394 | > | if (SDcompXform(vMtx, nrm, upv) != SDEnone) | 
| 395 | > | continue; | 
| 396 | > | nrota = addrot(rotargs, vMtx[0], vMtx[1], vMtx[2]); | 
| 397 | > | if (front_comp) { | 
| 398 | > | cvt_sposition(sorg, ivec, 1); | 
| 399 |  | printf("\nvoid colorfunc scale_pat\n"); | 
| 400 | < | printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", | 
| 401 | < | 4+nxfa, xfargs); | 
| 400 | > | printf("10 bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n"); | 
| 401 | > | printf("\t-s %f -t %f %f %f\n0\n0\n", | 
| 402 | > | bsdf_rad, sorg[0], sorg[1], sorg[2]); | 
| 403 |  | printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); | 
| 404 | < | SDcompXform(vMtx, ivec, Yaxis); | 
| 405 | < | nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); | 
| 406 | < | sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", | 
| 396 | < | scalef, ivec[0]*sph_rad - sph_xoffset, | 
| 397 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 398 | < | nxfa += 6; | 
| 404 | > | } | 
| 405 | > | if (front_comp & SDsampR) { | 
| 406 | > | put_mirror_arrow(sorg, nrm); | 
| 407 |  | fname = tfile_name(frpref, dsuffix, i); | 
| 408 | < | sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -mx -my %s", | 
| 409 | < | frpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 410 | < | xfargs); | 
| 408 | > | sprintf(cmdbuf, | 
| 409 | > | "gensurf scale_mat %s%d %s %s %s %d %d | xform %s -s %f -t %f %f %f", | 
| 410 | > | frpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 411 | > | rotargs, scalef, sorg[0], sorg[1], sorg[2]); | 
| 412 |  | if (!run_cmd(cmdbuf)) | 
| 413 |  | return(0); | 
| 414 |  | } | 
| 415 | < | if (front_comp & SDsampT) | 
| 416 | < | for (i = 0; i < NINCIDENT; i++) { | 
| 408 | < | get_ivector(ivec, i); | 
| 409 | < | put_trans_arrow(ivec, 1); | 
| 410 | < | sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, | 
| 411 | < | ivec[0]*sph_rad - sph_xoffset, | 
| 412 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 413 | < | nxfa = 6; | 
| 414 | < | printf("\nvoid colorfunc scale_pat\n"); | 
| 415 | < | printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", | 
| 416 | < | 4+nxfa, xfargs); | 
| 417 | < | printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); | 
| 418 | < | SDcompXform(vMtx, ivec, Yaxis); | 
| 419 | < | nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); | 
| 420 | < | sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", | 
| 421 | < | scalef, ivec[0]*sph_rad - sph_xoffset, | 
| 422 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 423 | < | nxfa += 6; | 
| 415 | > | if (front_comp & SDsampT) { | 
| 416 | > | put_trans_arrow(sorg); | 
| 417 |  | fname = tfile_name(ftpref, dsuffix, i); | 
| 418 | < | sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I -mx -my %s", | 
| 419 | < | ftpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 420 | < | xfargs); | 
| 418 | > | sprintf(cmdbuf, | 
| 419 | > | "gensurf scale_mat %s%d %s %s %s %d %d | xform -I %s -s %f -t %f %f %f", | 
| 420 | > | ftpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 421 | > | rotargs, scalef, sorg[0], sorg[1], sorg[2]); | 
| 422 |  | if (!run_cmd(cmdbuf)) | 
| 423 |  | return(0); | 
| 424 |  | } | 
| 425 | < | if (back_comp & SDsampR) | 
| 426 | < | for (i = 0; i < NINCIDENT; i++) { | 
| 433 | < | get_ivector(ivec, i); | 
| 434 | < | put_mirror_arrow(ivec, -1); | 
| 435 | < | fname = tfile_name(brpref, dsuffix, i); | 
| 436 | < | sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, | 
| 437 | < | ivec[0]*sph_rad + sph_xoffset, | 
| 438 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 439 | < | nxfa = 6; | 
| 425 | > | if (back_comp) { | 
| 426 | > | cvt_sposition(sorg, ivec, -1); | 
| 427 |  | printf("\nvoid colorfunc scale_pat\n"); | 
| 428 | < | printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", | 
| 429 | < | 4+nxfa, xfargs); | 
| 428 | > | printf("10 bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n"); | 
| 429 | > | printf("\t-s %f -t %f %f %f\n0\n0\n", | 
| 430 | > | bsdf_rad, sorg[0], sorg[1], sorg[2]); | 
| 431 |  | printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); | 
| 432 | < | SDcompXform(vMtx, ivec, Yaxis); | 
| 433 | < | nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); | 
| 434 | < | sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", | 
| 447 | < | scalef, ivec[0]*sph_rad + sph_xoffset, | 
| 448 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 449 | < | nxfa += 6; | 
| 432 | > | } | 
| 433 | > | if (back_comp & SDsampR) { | 
| 434 | > | put_mirror_arrow(sorg, nrm); | 
| 435 |  | fname = tfile_name(brpref, dsuffix, i); | 
| 436 | < | sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -I -ry 180 -mx -my %s", | 
| 437 | < | brpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 438 | < | xfargs); | 
| 436 | > | sprintf(cmdbuf, | 
| 437 | > | "gensurf scale_mat %s%d %s %s %s %d %d | xform -I -ry 180 %s -s %f -t %f %f %f", | 
| 438 | > | brpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 439 | > | rotargs, scalef, sorg[0], sorg[1], sorg[2]); | 
| 440 |  | if (!run_cmd(cmdbuf)) | 
| 441 |  | return(0); | 
| 442 |  | } | 
| 443 | < | if (back_comp & SDsampT) | 
| 444 | < | for (i = 0; i < NINCIDENT; i++) { | 
| 459 | < | get_ivector(ivec, i); | 
| 460 | < | put_trans_arrow(ivec, -1); | 
| 443 | > | if (back_comp & SDsampT) { | 
| 444 | > | put_trans_arrow(sorg); | 
| 445 |  | fname = tfile_name(btpref, dsuffix, i); | 
| 446 | < | sprintf(xfargs, "-s %f -t %f %f %f", bsdf_rad, | 
| 447 | < | ivec[0]*sph_rad + sph_xoffset, | 
| 448 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 449 | < | nxfa = 6; | 
| 466 | < | printf("\nvoid colorfunc scale_pat\n"); | 
| 467 | < | printf("%d bsdf_red bsdf_grn bsdf_blu bsdf2rad.cal\n\t%s\n0\n0\n", | 
| 468 | < | 4+nxfa, xfargs); | 
| 469 | < | printf("\nscale_pat glow scale_mat\n0\n0\n4 1 1 1 0\n"); | 
| 470 | < | SDcompXform(vMtx, ivec, Yaxis); | 
| 471 | < | nxfa = addrot(xfargs, vMtx[0], vMtx[1], vMtx[2]); | 
| 472 | < | sprintf(xfargs+strlen(xfargs), " -s %f -t %f %f %f", | 
| 473 | < | scalef, ivec[0]*sph_rad + sph_xoffset, | 
| 474 | < | ivec[1]*sph_rad, ivec[2]*sph_rad); | 
| 475 | < | nxfa += 6; | 
| 476 | < | fname = tfile_name(btpref, dsuffix, i); | 
| 477 | < | sprintf(cmdbuf, "gensurf scale_mat %s%d %s %s %s %d %d | xform -ry 180 -mx -my %s", | 
| 478 | < | btpref, i+1, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 479 | < | xfargs); | 
| 446 | > | sprintf(cmdbuf, | 
| 447 | > | "gensurf scale_mat %s%d %s %s %s %d %d | xform -ry 180 %s -s %f -t %f %f %f", | 
| 448 | > | btpref, i, fname, fname, fname, SAMPRES-1, SAMPRES-1, | 
| 449 | > | rotargs, scalef, sorg[0], sorg[1], sorg[2]); | 
| 450 |  | if (!run_cmd(cmdbuf)) | 
| 451 |  | return(0); | 
| 452 |  | } | 
| 453 | + | } | 
| 454 |  | return(1); | 
| 455 |  | } | 
| 456 |  |  | 
| 464 |  | printf("\n# Simplified material because we have no XML input\n"); | 
| 465 |  | printf("\nvoid brightfunc latlong\n2 latlong bsdf2rad.cal\n0\n0\n"); | 
| 466 |  | if ((front_comp|back_comp) & SDsampT) | 
| 467 | < | printf("\nlatlong trans %s\n0\n0\n7 .75 .75 .75 0 0 .5 .8\n", | 
| 468 | < | sph_mat); | 
| 467 | > | printf("\nlatlong trans %s\n0\n0\n7 .75 .75 .75 0 .04 .5 .8\n", | 
| 468 | > | sph_fmat); | 
| 469 |  | else | 
| 470 |  | printf("\nlatlong plastic %s\n0\n0\n5 .5 .5 .5 0 0\n", | 
| 471 | < | sph_mat); | 
| 471 | > | sph_fmat); | 
| 472 | > | printf("\ninherit alias %s %s\n", sph_bmat, sph_fmat); | 
| 473 |  | return; | 
| 474 |  | } | 
| 475 |  | switch (XMLfile[0]) {           /* avoid RAYPATH search */ | 
| 476 |  | case '.': | 
| 477 | + | case '~': | 
| 478 |  | CASEDIRSEP: | 
| 479 |  | curdir = ""; | 
| 480 |  | break; | 
| 483 |  | exit(1); | 
| 484 |  | break; | 
| 485 |  | } | 
| 486 | < | printf("\n# Actual BSDF material for rendering the hemispheres\n"); | 
| 487 | < | printf("\nvoid BSDF BSDFmat\n6 0 \"%s%s\" 0 1 0 .\n0\n0\n", | 
| 486 | > | printf("\n# Actual BSDF materials for rendering the hemispheres\n"); | 
| 487 | > | printf("\nvoid BSDF BSDF_f\n6 0 \"%s%s\" upx upy upz bsdf2rad.cal\n0\n0\n", | 
| 488 |  | curdir, XMLfile); | 
| 489 |  | printf("\nvoid plastic black\n0\n0\n5 0 0 0 0 0\n"); | 
| 490 | < | printf("\nvoid mixfunc %s\n4 BSDFmat black latlong bsdf2rad.cal\n0\n0\n", | 
| 491 | < | sph_mat); | 
| 490 | > | printf("\nvoid mixfunc %s\n4 BSDF_f black latlong bsdf2rad.cal\n0\n0\n", | 
| 491 | > | sph_fmat); | 
| 492 | > | printf("\nvoid BSDF BSDF_b\n8 0 \"%s%s\" upx upy upz bsdf2rad.cal -ry 180\n0\n0\n", | 
| 493 | > | curdir, XMLfile); | 
| 494 | > | printf("\nvoid mixfunc %s\n4 BSDF_b black latlong bsdf2rad.cal\n0\n0\n", | 
| 495 | > | sph_bmat); | 
| 496 |  | } | 
| 497 |  |  | 
| 498 |  | /* Put out overhead parallel light source */ | 
| 500 |  | put_source(void) | 
| 501 |  | { | 
| 502 |  | printf("\n# Overhead parallel light source\n"); | 
| 503 | < | printf("\nvoid light bright\n0\n0\n3 2000 2000 2000\n"); | 
| 503 | > | printf("\nvoid light bright\n0\n0\n3 2500 2500 2500\n"); | 
| 504 |  | printf("\nbright source light\n0\n0\n4 0 0 1 2\n"); | 
| 505 |  | printf("\n# Material used for labels\n"); | 
| 506 |  | printf("\nvoid trans vellum\n0\n0\n7 1 1 1 0 0 .5 0\n"); | 
| 510 |  | static void | 
| 511 |  | put_hemispheres(void) | 
| 512 |  | { | 
| 513 | + | const int       nsegs = 131; | 
| 514 | + |  | 
| 515 |  | printf("\n# Hemisphere(s) for showing BSDF appearance (if XML file)\n"); | 
| 537 | – | printf("\nvoid antimatter anti_sph\n2 void %s\n0\n0\n", sph_mat); | 
| 516 |  | if (front_comp) { | 
| 517 | < | printf("\n%s sphere Front\n0\n0\n4 %f 0 0 %f\n", | 
| 518 | < | sph_mat, -sph_xoffset, sph_rad); | 
| 519 | < | printf("\n!genbox anti_sph sph_eraser %f %f %f | xform -t %f %f %f\n", | 
| 542 | < | 2.02*sph_rad, 2.02*sph_rad, 1.02*sph_rad, | 
| 543 | < | -1.01*sph_rad - sph_xoffset, -1.01*sph_rad, -1.01*sph_rad); | 
| 517 | > | printf( | 
| 518 | > | "\n!genrev %s Front \"R*sin(A*t)\" \"R*cos(A*t)\" %d -e \"R:%g;A:%f\" -s | xform -t %g 0 0\n", | 
| 519 | > | sph_fmat, nsegs, sph_rad, 0.5*PI, sph_xoffset); | 
| 520 |  | printf("\nvoid brighttext front_text\n3 helvet.fnt . FRONT\n0\n"); | 
| 521 |  | printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", | 
| 522 | < | -.22*sph_rad - sph_xoffset, -1.4*sph_rad, | 
| 522 | > | -.22*sph_rad + sph_xoffset, -1.4*sph_rad, | 
| 523 |  | .35/5.*sph_rad, -1.6*.35/5.*sph_rad); | 
| 524 |  | printf("\nfront_text alias front_label_mat vellum\n"); | 
| 525 |  | printf("\nfront_label_mat polygon front_label\n0\n0\n12"); | 
| 526 |  | printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", | 
| 527 | < | -.25*sph_rad - sph_xoffset, -1.3*sph_rad, | 
| 528 | < | -.25*sph_rad - sph_xoffset, (-1.4-1.6*.35/5.-.1)*sph_rad, | 
| 529 | < | .25*sph_rad - sph_xoffset, (-1.4-1.6*.35/5.-.1)*sph_rad, | 
| 530 | < | .25*sph_rad - sph_xoffset, -1.3*sph_rad ); | 
| 527 | > | -.25*sph_rad + sph_xoffset, -1.3*sph_rad, | 
| 528 | > | -.25*sph_rad + sph_xoffset, (-1.4-1.6*.35/5.-.1)*sph_rad, | 
| 529 | > | .25*sph_rad + sph_xoffset, (-1.4-1.6*.35/5.-.1)*sph_rad, | 
| 530 | > | .25*sph_rad + sph_xoffset, -1.3*sph_rad ); | 
| 531 |  | } | 
| 532 |  | if (back_comp) { | 
| 533 | < | printf("\n%s bubble Back\n0\n0\n4 %f 0 0 %f\n", | 
| 534 | < | sph_mat, sph_xoffset, sph_rad); | 
| 535 | < | printf("\n!genbox anti_sph sph_eraser %f %f %f | xform -t %f %f %f\n", | 
| 560 | < | 2.02*sph_rad, 2.02*sph_rad, 1.02*sph_rad, | 
| 561 | < | -1.01*sph_rad + sph_xoffset, -1.01*sph_rad, -1.01*sph_rad); | 
| 533 | > | printf( | 
| 534 | > | "\n!genrev %s Back \"R*cos(A*t)\" \"R*sin(A*t)\" %d -e \"R:%g;A:%f\" -s | xform -t %g 0 0\n", | 
| 535 | > | sph_bmat, nsegs, sph_rad, 0.5*PI, -sph_xoffset); | 
| 536 |  | printf("\nvoid brighttext back_text\n3 helvet.fnt . BACK\n0\n"); | 
| 537 |  | printf("12\n\t%f %f 0\n\t%f 0 0\n\t0 %f 0\n\t.01 1 -.1\n", | 
| 538 | < | -.22*sph_rad + sph_xoffset, -1.4*sph_rad, | 
| 538 | > | -.22*sph_rad - sph_xoffset, -1.4*sph_rad, | 
| 539 |  | .35/4.*sph_rad, -1.6*.35/4.*sph_rad); | 
| 540 |  | printf("\nback_text alias back_label_mat vellum\n"); | 
| 541 |  | printf("\nback_label_mat polygon back_label\n0\n0\n12"); | 
| 542 |  | printf("\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n\t%f %f 0\n", | 
| 543 | < | -.25*sph_rad + sph_xoffset, -1.3*sph_rad, | 
| 544 | < | -.25*sph_rad + sph_xoffset, (-1.4-1.6*.35/4.-.1)*sph_rad, | 
| 545 | < | .25*sph_rad + sph_xoffset, (-1.4-1.6*.35/4.-.1)*sph_rad, | 
| 546 | < | .25*sph_rad + sph_xoffset, -1.3*sph_rad ); | 
| 543 | > | -.25*sph_rad - sph_xoffset, -1.3*sph_rad, | 
| 544 | > | -.25*sph_rad - sph_xoffset, (-1.4-1.6*.35/4.-.1)*sph_rad, | 
| 545 | > | .25*sph_rad - sph_xoffset, (-1.4-1.6*.35/4.-.1)*sph_rad, | 
| 546 | > | .25*sph_rad - sph_xoffset, -1.3*sph_rad ); | 
| 547 |  | } | 
| 548 |  | } | 
| 549 |  |  | 
| 552 |  | put_scale(void) | 
| 553 |  | { | 
| 554 |  | const double    max_log10 = log10(overall_max); | 
| 555 | < | const double    leg_width = 2.*.75*(sph_xoffset - sph_rad); | 
| 555 | > | const double    leg_width = 2.*.75*(fabs(sph_xoffset) - sph_rad); | 
| 556 |  | const double    leg_height = 2.*sph_rad; | 
| 557 |  | const int       text_lines = 6; | 
| 558 |  | const int       text_digits = 8; | 
| 651 |  | sprintf(cmdbuf, "xform -t %f %f %f -s %f -t %f %f 0 %s", | 
| 652 |  | -.5*(xmin+xmax), -.5*(ymin+ymax), -zmax, | 
| 653 |  | 1.5*sph_rad/max_dim, | 
| 654 | < | -sph_xoffset, -2.5*sph_rad, | 
| 654 | > | sph_xoffset, -2.5*sph_rad, | 
| 655 |  | radfn); | 
| 656 |  | if (!run_cmd(cmdbuf)) | 
| 657 |  | return; | 
| 661 |  | sprintf(cmdbuf, "xform -t %f %f %f -s %f -ry 180 -t %f %f 0 %s", | 
| 662 |  | -.5*(xmin+xmax), -.5*(ymin+ymax), -zmin, | 
| 663 |  | 1.5*sph_rad/max_dim, | 
| 664 | < | sph_xoffset, -2.5*sph_rad, | 
| 664 | > | -sph_xoffset, -2.5*sph_rad, | 
| 665 |  | radfn); | 
| 666 |  | if (!run_cmd(cmdbuf)) | 
| 667 |  | return; | 
| 672 |  | static int | 
| 673 |  | rbf_headline(char *s, void *p) | 
| 674 |  | { | 
| 675 | < | char    fmt[64]; | 
| 675 | > | char    fmt[MAXFMTLEN]; | 
| 676 |  |  | 
| 677 |  | if (formatval(fmt, s)) { | 
| 678 |  | if (strcmp(fmt, BSDFREP_FMT)) | 
| 706 |  | main(int argc, char *argv[]) | 
| 707 |  | { | 
| 708 |  | int     inpXML = -1; | 
| 709 | + | double  myLim[2]; | 
| 710 |  | SDData  myBSDF; | 
| 711 | < | int     n; | 
| 711 | > | int     a, n; | 
| 712 |  | /* check arguments */ | 
| 713 |  | progname = argv[0]; | 
| 714 | < | if (argc > 1 && (n = strlen(argv[1])-4) > 0) { | 
| 715 | < | if (!strcasecmp(argv[1]+n, ".xml")) | 
| 714 | > | a = 1; | 
| 715 | > | myLim[0] = -1; myLim[1] = -2;           /* specified BSDF range? */ | 
| 716 | > | if (argc > a+3 && argv[a][0] == '-' && argv[a][1] == 'r') { | 
| 717 | > | myLim[0] = atof(argv[++a]); | 
| 718 | > | myLim[1] = atof(argv[++a]); | 
| 719 | > | ++a; | 
| 720 | > | } | 
| 721 | > | if (argc > a && (n = strlen(argv[a])-4) > 0) { | 
| 722 | > | if (!strcasecmp(argv[a]+n, ".xml")) | 
| 723 |  | inpXML = 1; | 
| 724 | < | else if (!strcasecmp(argv[1]+n, ".sir")) | 
| 724 | > | else if (!strcasecmp(argv[a]+n, ".sir")) | 
| 725 |  | inpXML = 0; | 
| 726 |  | } | 
| 727 | < | if (inpXML < 0 || inpXML & (argc > 2)) { | 
| 728 | < | fprintf(stderr, "Usage: %s bsdf.xml > output.rad\n", progname); | 
| 729 | < | fprintf(stderr, "   Or: %s hemi1.sir hemi2.sir .. > output.rad\n", progname); | 
| 727 | > | if (inpXML < 0 || inpXML & (argc > a+1)) { | 
| 728 | > | fprintf(stderr, "Usage: %s [-r min max] bsdf.xml > output.rad\n", progname); | 
| 729 | > | fprintf(stderr, "   Or: %s [-r min max] hemi1.sir hemi2.sir .. > output.rad\n", progname); | 
| 730 |  | return(1); | 
| 731 |  | } | 
| 732 |  | fputs("# ", stdout);                    /* copy our command */ | 
| 733 |  | printargs(argc, argv, stdout); | 
| 734 |  | /* evaluate BSDF */ | 
| 735 |  | if (inpXML) { | 
| 736 | < | SDclearBSDF(&myBSDF, argv[1]); | 
| 737 | < | if (SDreportError(SDloadFile(&myBSDF, argv[1]), stderr)) | 
| 736 | > | SDclearBSDF(&myBSDF, argv[a]); | 
| 737 | > | if (SDreportError(SDloadFile(&myBSDF, argv[a]), stderr)) | 
| 738 |  | return(1); | 
| 739 |  | if (myBSDF.rf != NULL) front_comp |= SDsampR; | 
| 740 |  | if (myBSDF.tf != NULL) front_comp |= SDsampT; | 
| 742 |  | if (myBSDF.tb != NULL) back_comp |= SDsampT; | 
| 743 |  | if (!front_comp & !back_comp) { | 
| 744 |  | fprintf(stderr, "%s: nothing to plot in '%s'\n", | 
| 745 | < | progname, argv[1]); | 
| 745 | > | progname, argv[a]); | 
| 746 |  | return(1); | 
| 747 |  | } | 
| 748 | < | if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) | 
| 749 | < | overall_min = myBSDF.rLambFront.cieY/PI; | 
| 750 | < | if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) | 
| 751 | < | overall_min = myBSDF.rLambBack.cieY/PI; | 
| 752 | < | if ((front_comp|back_comp) & SDsampT && | 
| 753 | < | myBSDF.tLamb.cieY < overall_min*PI) | 
| 754 | < | overall_min = myBSDF.tLamb.cieY/PI; | 
| 748 | > | if (myLim[0] >= 0) | 
| 749 | > | overall_min = myLim[0]; | 
| 750 | > | else { | 
| 751 | > | if (front_comp & SDsampR && myBSDF.rLambFront.cieY < overall_min*PI) | 
| 752 | > | overall_min = myBSDF.rLambFront.cieY/PI; | 
| 753 | > | if (back_comp & SDsampR && myBSDF.rLambBack.cieY < overall_min*PI) | 
| 754 | > | overall_min = myBSDF.rLambBack.cieY/PI; | 
| 755 | > | if ((front_comp|back_comp) & SDsampT && | 
| 756 | > | myBSDF.tLamb.cieY < overall_min*PI) | 
| 757 | > | overall_min = myBSDF.tLamb.cieY/PI; | 
| 758 | > | } | 
| 759 |  | set_minlog(); | 
| 760 |  | if (!build_wBSDF(&myBSDF)) | 
| 761 |  | return(1); | 
| 764 |  | else | 
| 765 |  | strcpy(bsdf_name, myBSDF.name); | 
| 766 |  | strcpy(bsdf_manuf, myBSDF.makr); | 
| 767 | < | put_matBSDF(argv[1]); | 
| 767 | > | put_matBSDF(argv[a]); | 
| 768 |  | } else { | 
| 769 | < | FILE    *fp; | 
| 770 | < | for (n = 1; n < argc; n++) { | 
| 771 | < | fp = fopen(argv[n], "rb"); | 
| 772 | < | if (fp == NULL) { | 
| 769 | > | FILE    *fp[4]; | 
| 770 | > | if (argc > a+4) { | 
| 771 | > | fprintf(stderr, "%s: more than 4 hemispheres!\n", progname); | 
| 772 | > | return(1); | 
| 773 | > | } | 
| 774 | > | for (n = a; n < argc; n++) { | 
| 775 | > | fp[n-a] = fopen(argv[n], "rb"); | 
| 776 | > | if (fp[n-a] == NULL) { | 
| 777 |  | fprintf(stderr, "%s: cannot open BSDF interpolant '%s'\n", | 
| 778 |  | progname, argv[n]); | 
| 779 |  | return(1); | 
| 780 |  | } | 
| 781 | < | if (getheader(fp, rbf_headline, NULL) < 0) { | 
| 781 | > | if (getheader(fp[n-a], rbf_headline, NULL) < 0) { | 
| 782 |  | fprintf(stderr, "%s: bad BSDF interpolant '%s'\n", | 
| 783 |  | progname, argv[n]); | 
| 784 |  | return(1); | 
| 785 |  | } | 
| 796 | – | fclose(fp); | 
| 786 |  | } | 
| 787 | + | if (myLim[0] >= 0) | 
| 788 | + | overall_min = myLim[0]; | 
| 789 |  | set_minlog(); | 
| 790 | < | for (n = 1; n < argc; n++) { | 
| 791 | < | fp = fopen(argv[n], "rb"); | 
| 792 | < | if (!load_bsdf_rep(fp)) | 
| 790 | > | for (n = a; n < argc; n++) { | 
| 791 | > | if (fseek(fp[n-a], 0L, SEEK_SET) < 0) { | 
| 792 | > | fprintf(stderr, "%s: cannot seek on '%s'\n", | 
| 793 | > | progname, argv[n]); | 
| 794 |  | return(1); | 
| 795 | < | fclose(fp); | 
| 795 | > | } | 
| 796 | > | if (!load_bsdf_rep(fp[n-a])) | 
| 797 | > | return(1); | 
| 798 | > | fclose(fp[n-a]); | 
| 799 |  | if (!build_wRBF()) | 
| 800 |  | return(1); | 
| 801 |  | } | 
| 802 |  | put_matBSDF(NULL); | 
| 803 |  | } | 
| 804 | + | if (myLim[1] > myLim[0])        /* override maximum BSDF? */ | 
| 805 | + | overall_max = myLim[1]; | 
| 806 |  | put_source();                   /* before hemispheres & labels */ | 
| 807 |  | put_hemispheres(); | 
| 808 |  | put_scale(); | 
| 809 |  | if (inpXML && myBSDF.mgf) | 
| 810 |  | convert_mgf(myBSDF.mgf); | 
| 811 | < | if (!put_BSDFs()) | 
| 811 | > | if (!put_BSDFs())               /* most of the output happens here */ | 
| 812 |  | return(1); | 
| 813 |  | cleanup_tmp(); | 
| 814 |  | return(0); |