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/* Copyright (c) 1992 Regents of the University of California */ |
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/* Copyright (c) 1995 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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double dstrsrc = 0.0; /* square source distribution */ |
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double shadthresh = .05; /* shadow threshold */ |
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double shadcert = .5; /* shadow certainty */ |
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int directrelay = 1; /* number of source relays */ |
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int directrelay = 2; /* number of source relays */ |
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int vspretest = 512; /* virtual source pretest density */ |
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int directvis = 1; /* sources visible? */ |
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double srcsizerat = .25; /* maximum ratio source size/dist. */ |
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double srcsizerat = .2; /* maximum ratio source size/dist. */ |
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COLOR cextinction = BLKCOLOR; /* global extinction coefficient */ |
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double salbedo = 0.; /* global scattering albedo */ |
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double seccg = 0.; /* global scattering eccentricity */ |
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double ssampdist = 0.; /* scatter sampling distance */ |
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double specthresh = .15; /* specular sampling threshold */ |
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double specjitter = 1.; /* specular sampling jitter */ |
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int backvis = 1; /* back face visibility */ |
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int maxdepth = 6; /* maximum recursion depth */ |
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double minweight = 4e-3; /* minimum ray weight */ |
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COLOR ambval = BLKCOLOR; /* ambient value */ |
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double ambacc = 0.2; /* ambient accuracy */ |
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int ambres = 32; /* ambient resolution */ |
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int ambdiv = 128; /* ambient divisions */ |
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int ambres = 128; /* ambient resolution */ |
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int ambdiv = 512; /* ambient divisions */ |
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int ambssamp = 0; /* ambient super-samples */ |
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int ambounce = 0; /* ambient bounces */ |
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char *amblist[128]; /* ambient include/exclude list */ |
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setmode(fileno(fp), O_BINARY); |
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#endif |
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/* set up output */ |
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if (imm_irrad) |
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outvals = "v"; |
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else |
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setoutput(outvals); |
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setoutput(outvals); |
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switch (outform) { |
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case 'a': putreal = puta; break; |
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case 'f': putreal = putf; break; |
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if (imm_irrad) |
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irrad(orig, direc); |
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else |
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traceray(orig, direc); |
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rad(orig, direc); |
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/* flush if time */ |
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if (--nextflush == 0) { |
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fflush(stdout); |
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} |
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traceray(org, dir) /* compute and print ray value(s) */ |
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rad(org, dir) /* compute and print ray value(s) */ |
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FVECT org, dir; |
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{ |
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register int (**tp)(); |
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VCOPY(thisray.rorg, org); |
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VCOPY(thisray.rdir, dir); |
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thisray.rmax = 0.0; |
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rayorigin(&thisray, NULL, PRIMARY, 1.0); |
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if (castonly) |
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localhit(&thisray, &thescene) || sourcehit(&thisray); |
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else |
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rayvalue(&thisray); |
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if (ray_out[0] == NULL) |
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return; |
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for (tp = ray_out; *tp != NULL; tp++) |
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(**tp)(&thisray); |
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if (outform == 'a') |
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putchar('\n'); |
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printvals(&thisray); |
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} |
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} |
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rayorigin(&thisray, NULL, PRIMARY, 1.0); |
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/* pretend we hit surface */ |
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thisray.rot = 1.0; |
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thisray.rot = 1.0-1e-4; |
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thisray.rod = 1.0; |
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VCOPY(thisray.ron, dir); |
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for (i = 0; i < 3; i++) /* fudge factor */ |
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thisray.rop[i] = org[i] + 1e-4*dir[i]; |
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/* compute and print */ |
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(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
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oputv(&thisray); |
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printvals(&thisray); |
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} |
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printvals(r) /* print requested ray values */ |
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RAY *r; |
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{ |
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register int (**tp)(); |
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if (ray_out[0] == NULL) |
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return; |
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for (tp = ray_out; *tp != NULL; tp++) |
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(**tp)(r); |
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if (outform == 'a') |
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putchar('\n'); |
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} |
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if (every_out[0] == NULL) |
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return; |
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if (traincl == 1 && r->ro == NULL) |
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return; |
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if (traincl != -1 && traincl != inset(traset, r->ro->omod)) |
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if (r->ro == NULL) { |
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if (traincl == 1) |
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return; |
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} else if (traincl != -1 && traincl != inset(traset, r->ro->omod)) |
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return; |
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tabin(r); |
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for (tp = every_out; *tp != NULL; tp++) |
