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/* Copyright (c) 1986 Regents of the University of California */ |
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|
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#ifndef lint |
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static char SCCSid[] = "$SunId$ LBL"; |
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static const char RCSid[] = "$Id$"; |
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#endif |
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|
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/* |
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* rtrace.c - program and variables for individual ray tracing. |
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* |
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* 6/11/86 |
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*/ |
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#include "copyright.h" |
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|
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/* |
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* Input is in the form: |
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* |
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* All values default to ascii representation of real |
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* numbers. Binary representations can be selected |
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* with '-ff' for float or '-fd' for double. By default, |
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* radiance is computed. The '-oi' or '-oI' options indicate that |
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* radiance is computed. The '-i' or '-I' options indicate that |
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* irradiance values are desired. |
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*/ |
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|
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#include <time.h> |
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|
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#include "platform.h" |
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#include "ray.h" |
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#include "ambient.h" |
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#include "source.h" |
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#include "otypes.h" |
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#include "resolu.h" |
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#include "random.h" |
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|
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#include "octree.h" |
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CUBE thescene; /* our scene */ |
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OBJECT nsceneobjs; /* number of objects in our scene */ |
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|
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#include "otypes.h" |
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int dimlist[MAXDIM]; /* sampling dimensions */ |
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int ndims = 0; /* number of sampling dimensions */ |
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int samplendx = 0; /* index for this sample */ |
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|
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int imm_irrad = 0; /* compute immediate irradiance? */ |
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int lim_dist = 0; /* limit distance? */ |
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|
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int inform = 'a'; /* input format */ |
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int outform = 'a'; /* output format */ |
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char *outvals = "v"; /* output specification */ |
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|
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int do_irrad = 0; /* compute irradiance? */ |
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|
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int rand_samp = 0; /* pure Monte Carlo sampling? */ |
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|
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void (*trace)() = NULL; /* trace call */ |
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|
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char *tralist[128]; /* list of modifers to trace (or no) */ |
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int traincl = -1; /* include == 1, exclude == 0 */ |
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#ifndef MAXTSET |
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#define MAXTSET 1024 /* maximum number in trace set */ |
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#endif |
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OBJECT traset[MAXTSET+1]={0}; /* trace include/exclude set */ |
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|
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int hresolu = 0; /* horizontal (scan) size */ |
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int vresolu = 0; /* vertical resolution */ |
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|
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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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double shadthresh = .03; /* shadow threshold */ |
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double shadcert = .75; /* shadow certainty */ |
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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 = .2; /* maximum ratio source size/dist. */ |
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|
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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 cextinction = BLKCOLOR; /* global extinction coefficient */ |
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COLOR salbedo = BLKCOLOR; /* 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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|
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double specthresh = .15; /* specular sampling threshold */ |
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double specjitter = 1.; /* specular sampling jitter */ |
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|
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int backvis = 1; /* back face visibility */ |
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|
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int maxdepth = -10; /* maximum recursion depth */ |
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double minweight = 2e-3; /* minimum ray weight */ |
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|
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char *ambfile = NULL; /* ambient file name */ |
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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 ambssamp = 0; /* ambient super-samples */ |
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int ambvwt = 0; /* initial weight for ambient value */ |
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double ambacc = 0.15; /* ambient accuracy */ |
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int ambres = 256; /* ambient resolution */ |
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int ambdiv = 1024; /* ambient divisions */ |
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int ambssamp = 512; /* 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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char *amblist[AMBLLEN]; /* ambient include/exclude list */ |
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int ambincl = -1; /* include == 1, exclude == 0 */ |
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|
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static int castonly = 0; |
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|
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static RAY thisray; /* for our convenience */ |
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|
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static int oputo(), oputd(), oputv(), oputl(), |
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oputp(), oputn(), oputs(), oputw(), oputm(); |
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typedef void putf_t(double v); |
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static putf_t puta, putd, putf; |
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|
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static int (*ray_out[10])(), (*every_out[10])(); |
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static int castonly; |
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typedef void oputf_t(RAY *r); |
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static oputf_t oputo, oputd, oputv, oputl, oputL, oputc, oputp, |
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oputn, oputN, oputs, oputw, oputW, oputm, oputM, oputtilde; |
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|
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static int puta(), putf(), putd(); |
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static void setoutput(char *vs); |
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static void tranotify(OBJECT obj); |
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static void bogusray(void); |
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static void rad(FVECT org, FVECT dir, double dmax); |
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static void irrad(FVECT org, FVECT dir); |
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static void printvals(RAY *r); |
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static int getvec(FVECT vec, int fmt, FILE *fp); |
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static void tabin(RAY *r); |
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static void ourtrace(RAY *r); |
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|
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static int (*putreal)(); |
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static oputf_t *ray_out[16], *every_out[16]; |
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static putf_t *putreal; |
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|
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static double Lambfa[5] = {PI, PI, PI, 0.0, 0.0}; |
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static OBJREC Lamb = { |
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OVOID, MAT_PLASTIC, "Lambertian", |
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{0, 5, NULL, Lambfa}, NULL, -1, |
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}; /* a Lambertian surface */ |
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void (*addobjnotify[])() = {ambnotify, tranotify, NULL}; |
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|
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quit(code) /* quit program */ |
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int code; |
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void |
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quit( /* quit program */ |
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int code |
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) |
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{ |
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#ifndef NON_POSIX /* XXX we don't clean up elsewhere? */ |
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headclean(); /* delete header file */ |
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pfclean(); /* clean up persist files */ |
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#endif |
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exit(code); |
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} |
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|
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|
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rtrace(fname) /* trace rays from file */ |
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char *fname; |
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extern char * |
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formstr( /* return format identifier */ |
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int f |
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) |
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{ |
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long vcount = hresolu>1 ? hresolu*vresolu : vresolu; |
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switch (f) { |
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case 'a': return("ascii"); |
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case 'f': return("float"); |
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case 'd': return("double"); |
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case 'c': return(COLRFMT); |
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} |
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return("unknown"); |
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} |
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|
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|
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extern void |
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rtrace( /* trace rays from file */ |
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char *fname |
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) |
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{ |
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unsigned long vcount = (hresolu > 1) ? (unsigned long)hresolu*vresolu |
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: vresolu; |
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long nextflush = hresolu; |
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FILE *fp; |
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double d; |
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FVECT orig, direc; |
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/* set up input */ |
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if (fname == NULL) |
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sprintf(errmsg, "cannot open input file \"%s\"", fname); |
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error(SYSTEM, errmsg); |
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} |
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if (inform != 'a') |
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SET_FILE_BINARY(fp); |
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/* set up output */ |
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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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case 'd': putreal = putd; break; |
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case 'c': |
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if (strcmp(outvals, "v")) |
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error(USER, "color format with value output only"); |
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break; |
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default: |
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error(CONSISTENCY, "botched output format"); |
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} |
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if (hresolu > 0) { |
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if (vresolu > 0) |
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fprtresolu(hresolu, vresolu, stdout); |
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fflush(stdout); |
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} |
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/* process file */ |
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while (getvec(orig, inform, fp) == 0 && |
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getvec(direc, inform, fp) == 0) { |
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|
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if (normalize(direc) == 0.0) { /* zero ==> flush */ |
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fflush(stdout); |
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continue; |
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} |
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d = normalize(direc); |
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if (d == 0.0) { /* zero ==> flush */ |
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bogusray(); |
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if (--nextflush <= 0 || !vcount) { |
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fflush(stdout); |
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nextflush = hresolu; |
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} |
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} else { |
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samplendx = rand_samp ? random() : samplendx+1; |
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/* compute and print */ |
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if (outvals[0] == 'i') |
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irrad(orig, direc); |
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else if (outvals[0] == 'I') |
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Irrad(orig, direc); |
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else |
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radiance(orig, direc); |
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if (imm_irrad) |
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irrad(orig, direc); |
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else |
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rad(orig, direc, lim_dist ? d : 0.0); |
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/* flush if time */ |
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if (--nextflush == 0) { |
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fflush(stdout); |
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nextflush = hresolu; |
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if (!--nextflush) { |
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fflush(stdout); |
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nextflush = hresolu; |
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} |
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} |
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if (ferror(stdout)) |
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error(SYSTEM, "write error"); |
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if (--vcount == 0) /* check for end */ |
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if (vcount && !--vcount) /* check for end */ |
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break; |
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} |
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if (vcount > 0) |
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error(USER, "read error"); |
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fclose(fp); |
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fflush(stdout); |
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if (vcount) |
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error(USER, "unexpected EOF on input"); |
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if (fname != NULL) |
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fclose(fp); |
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} |
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|
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|
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setoutput(vs) /* set up output tables */ |
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register char *vs; |
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static void |
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trace_sources(void) /* trace rays to light sources, also */ |
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{ |
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< |
extern int ourtrace(), (*trace)(); |
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register int (**table)() = ray_out; |
229 |
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int sn; |
230 |
> |
|
231 |
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for (sn = 0; sn < nsources; sn++) |
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source[sn].sflags |= SFOLLOW; |
233 |
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} |
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|
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|
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static void |
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setoutput( /* set up output tables */ |
238 |
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register char *vs |
239 |
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) |
240 |
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{ |
241 |
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register oputf_t **table = ray_out; |
242 |
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|
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castonly = 1; |
244 |
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while (*vs) |
245 |
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switch (*vs++) { |
246 |
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case 'T': /* trace sources */ |
247 |
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if (!*vs) break; |
248 |
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trace_sources(); |
249 |
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/* fall through */ |
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case 't': /* trace */ |
251 |
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if (!*vs) break; |
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*table = NULL; |
253 |
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table = every_out; |
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trace = ourtrace; |
264 |
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*table++ = oputv; |
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castonly = 0; |
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break; |
267 |
< |
case 'l': /* length */ |
267 |
> |
case 'l': /* effective distance */ |
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*table++ = oputl; |
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castonly = 0; |
270 |
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break; |
271 |
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case 'c': /* local coordinates */ |
272 |
+ |
*table++ = oputc; |
273 |
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break; |
274 |
+ |
case 'L': /* single ray length */ |
275 |
+ |
*table++ = oputL; |
276 |
+ |
break; |
277 |
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case 'p': /* point */ |
278 |
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*table++ = oputp; |
279 |
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break; |
280 |
< |
case 'n': /* normal */ |
280 |
> |
case 'n': /* perturbed normal */ |
281 |
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*table++ = oputn; |
282 |
+ |
castonly = 0; |
283 |
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break; |
284 |
+ |
case 'N': /* unperturbed normal */ |
285 |
+ |
*table++ = oputN; |
286 |
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break; |
287 |
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case 's': /* surface */ |
288 |
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*table++ = oputs; |
289 |
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break; |
290 |
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case 'w': /* weight */ |
291 |
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*table++ = oputw; |
292 |
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break; |
293 |
+ |
case 'W': /* coefficient */ |
294 |
+ |
*table++ = oputW; |
295 |
+ |
if (ambounce > 0 && (ambacc > FTINY || ambssamp > 0)) |
296 |
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error(WARNING, |
297 |
+ |
"-otW accuracy depends on -aa 0 -as 0"); |
298 |
+ |
break; |
299 |
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case 'm': /* modifier */ |
300 |
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*table++ = oputm; |
301 |
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break; |
302 |
+ |
case 'M': /* material */ |
303 |
+ |
*table++ = oputM; |
304 |
+ |
break; |
305 |
+ |
case '~': /* tilde */ |
306 |
+ |
*table++ = oputtilde; |
307 |
+ |
break; |
308 |
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} |
309 |
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*table = NULL; |
310 |
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} |
311 |
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|
312 |
|
|
313 |
< |
radiance(org, dir) /* compute radiance value */ |
314 |
< |
FVECT org, dir; |
313 |
> |
static void |
314 |
> |
bogusray(void) /* print out empty record */ |
315 |
|
{ |
316 |
< |
register int (**tp)(); |
316 |
> |
thisray.rorg[0] = thisray.rorg[1] = thisray.rorg[2] = |
317 |
> |
thisray.rdir[0] = thisray.rdir[1] = thisray.rdir[2] = 0.0; |
318 |
> |
thisray.rmax = 0.0; |
319 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
320 |
> |
printvals(&thisray); |
321 |
> |
} |
322 |
|
|
323 |
+ |
|
324 |
+ |
static void |
325 |
+ |
rad( /* compute and print ray value(s) */ |
326 |
+ |
FVECT org, |
327 |
+ |
FVECT dir, |
328 |
+ |
double dmax |
329 |
+ |
) |
330 |
+ |
{ |
331 |
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VCOPY(thisray.rorg, org); |
332 |
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VCOPY(thisray.rdir, dir); |
333 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
334 |
< |
if (castonly) |
335 |
< |
localhit(&thisray, &thescene) || sourcehit(&thisray); |
336 |
< |
else |
333 |
> |
thisray.rmax = dmax; |
334 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
335 |
> |
if (castonly) { |
336 |
> |
if (!localhit(&thisray, &thescene)) { |
337 |
> |
if (thisray.ro == &Aftplane) { /* clipped */ |
338 |
> |
thisray.ro = NULL; |
339 |
> |
thisray.rot = FHUGE; |
340 |
> |
} else |
341 |
> |
sourcehit(&thisray); |
342 |
> |
} |
343 |
> |
} else |
344 |
|
rayvalue(&thisray); |
345 |
< |
|
196 |
< |
if (ray_out[0] == NULL) |
197 |
< |
return; |
198 |
< |
for (tp = ray_out; *tp != NULL; tp++) |
199 |
< |
(**tp)(&thisray); |
200 |
< |
if (outform == 'a') |
201 |
< |
putchar('\n'); |
345 |
> |
printvals(&thisray); |
346 |
|
} |
347 |
|
|
348 |
|
|
349 |
< |
irrad(org, dir) /* compute irradiance value */ |
350 |
< |
FVECT org, dir; |
349 |
> |
static void |
350 |
> |
irrad( /* compute immediate irradiance value */ |
351 |
> |
FVECT org, |
352 |
> |
FVECT dir |
353 |
> |
) |
354 |
|
{ |
355 |
|
register int i; |
356 |
|
|
358 |
|
thisray.rorg[i] = org[i] + dir[i]; |
359 |
|
thisray.rdir[i] = -dir[i]; |
360 |
|
} |
361 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
361 |
> |
thisray.rmax = 0.0; |
362 |
> |
rayorigin(&thisray, PRIMARY, NULL, NULL); |
363 |
|
/* pretend we hit surface */ |
364 |
< |
thisray.rot = 1.0; |
364 |
> |
thisray.rot = 1.0-1e-4; |
365 |
|
thisray.rod = 1.0; |
366 |
|
VCOPY(thisray.ron, dir); |
367 |
|
for (i = 0; i < 3; i++) /* fudge factor */ |
368 |
|
thisray.rop[i] = org[i] + 1e-4*dir[i]; |
369 |
|
/* compute and print */ |
370 |
|
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
371 |
< |
oputv(&thisray); |
224 |
< |
if (outform == 'a') |
225 |
< |
putchar('\n'); |
371 |
> |
printvals(&thisray); |
372 |
|
} |
373 |
|
|
374 |
|
|
375 |
< |
Irrad(org, dir) /* compute irradiance value after intersection */ |
376 |
< |
FVECT org, dir; |
375 |
> |
static void |
376 |
> |
printvals( /* print requested ray values */ |
377 |
> |
RAY *r |
378 |
> |
) |
379 |
|
{ |
380 |
< |
/* compute intersection */ |
381 |
< |
VCOPY(thisray.rorg, org); |
382 |
< |
VCOPY(thisray.rdir, dir); |
383 |
< |
rayorigin(&thisray, NULL, PRIMARY, 1.0); |
384 |
< |
localhit(&thisray, &thescene); |
385 |
< |
if (thisray.ro != NULL) /* pretend we hit Lambertian surf. */ |
238 |
< |
(*ofun[Lamb.otype].funp)(&Lamb, &thisray); |
239 |
< |
oputv(&thisray); |
380 |
> |
register oputf_t **tp; |
381 |
> |
|
382 |
> |
if (ray_out[0] == NULL) |
383 |
> |
return; |
384 |
> |
for (tp = ray_out; *tp != NULL; tp++) |
385 |
> |
(**tp)(r); |
386 |
|
if (outform == 'a') |
387 |
|
putchar('\n'); |
388 |
|
} |
389 |
|
|
390 |
|
|
391 |
< |
getvec(vec, fmt, fp) /* get a vector from fp */ |
392 |
< |
register FVECT vec; |
393 |
< |
int fmt; |
394 |
< |
FILE *fp; |
391 |
> |
static int |
392 |
> |
getvec( /* get a vector from fp */ |
393 |
> |
register FVECT vec, |
394 |
> |
int fmt, |
395 |
> |
FILE *fp |
396 |
> |
) |
397 |
|
{ |
398 |
|
static float vf[3]; |
399 |
+ |
static double vd[3]; |
400 |
+ |
char buf[32]; |
401 |
+ |
register int i; |
402 |
|
|
403 |
|
switch (fmt) { |
404 |
|
case 'a': /* ascii */ |
405 |
< |
if (fscanf(fp, "%lf %lf %lf", vec, vec+1, vec+2) != 3) |
406 |
< |
return(-1); |
405 |
> |
for (i = 0; i < 3; i++) { |
406 |
> |
if (fgetword(buf, sizeof(buf), fp) == NULL || |
407 |
> |
!isflt(buf)) |
408 |
> |
return(-1); |
409 |
> |
vec[i] = atof(buf); |
410 |
> |
} |
411 |
|
break; |
412 |
|
case 'f': /* binary float */ |
413 |
|
if (fread((char *)vf, sizeof(float), 3, fp) != 3) |
415 |
|
vec[0] = vf[0]; vec[1] = vf[1]; vec[2] = vf[2]; |
416 |
|
break; |
417 |
|
case 'd': /* binary double */ |
418 |
< |
if (fread((char *)vec, sizeof(double), 3, fp) != 3) |
418 |
> |
if (fread((char *)vd, sizeof(double), 3, fp) != 3) |
419 |
|
return(-1); |
420 |
+ |
vec[0] = vd[0]; vec[1] = vd[1]; vec[2] = vd[2]; |
421 |
|
break; |
422 |
+ |
default: |
423 |
+ |
error(CONSISTENCY, "botched input format"); |
424 |
|
} |
425 |
|
return(0); |
426 |
|
} |
427 |
|
|
428 |
|
|
429 |
< |
static |
430 |
< |
ourtrace(r) /* print ray values */ |
431 |
< |
RAY *r; |
429 |
> |
static void |
430 |
> |
tranotify( /* record new modifier */ |
431 |
> |
OBJECT obj |
432 |
> |
) |
433 |
|
{ |
434 |
< |
register int (**tp)(); |
434 |
> |
static int hitlimit = 0; |
435 |
> |
register OBJREC *o = objptr(obj); |
436 |
> |
register char **tralp; |
437 |
|
|
438 |
+ |
if (obj == OVOID) { /* starting over */ |
439 |
+ |
traset[0] = 0; |
440 |
+ |
hitlimit = 0; |
441 |
+ |
return; |
442 |
+ |
} |
443 |
+ |
if (hitlimit || !ismodifier(o->otype)) |
444 |
+ |
return; |
445 |
+ |
for (tralp = tralist; *tralp != NULL; tralp++) |
446 |
+ |
if (!strcmp(o->oname, *tralp)) { |
447 |
+ |
if (traset[0] >= MAXTSET) { |
448 |
+ |
error(WARNING, "too many modifiers in trace list"); |
449 |
+ |
hitlimit++; |
450 |
+ |
return; /* should this be fatal? */ |
451 |
+ |
} |
452 |
+ |
insertelem(traset, obj); |
453 |
+ |
return; |
454 |
+ |
} |
455 |
+ |
} |
456 |
+ |
|
457 |
+ |
|
458 |
+ |
static void |
459 |
+ |
ourtrace( /* print ray values */ |
460 |
+ |
RAY *r |
461 |
+ |
) |
462 |
+ |
{ |
463 |
+ |
register oputf_t **tp; |
464 |
+ |
|
465 |
|
if (every_out[0] == NULL) |
466 |
|
return; |
467 |
+ |
if (r->ro == NULL) { |
468 |
+ |
if (traincl == 1) |
469 |
+ |
return; |
470 |
+ |
} else if (traincl != -1 && traincl != inset(traset, r->ro->omod)) |
471 |
+ |
return; |
472 |
|
tabin(r); |
473 |
|
for (tp = every_out; *tp != NULL; tp++) |
474 |
|
(**tp)(r); |
475 |
< |
putchar('\n'); |
475 |
> |
if (outform == 'a') |
476 |
> |
putchar('\n'); |
477 |
|
} |
478 |
|
|
479 |
|
|
480 |
< |
static |
481 |
< |
tabin(r) /* tab in appropriate amount */ |
482 |
< |
RAY *r; |
480 |
> |
static void |
481 |
> |
tabin( /* tab in appropriate amount */ |
482 |
> |
RAY *r |
483 |
> |
) |
484 |
|
{ |
485 |
< |
register RAY *rp; |
485 |
> |
const RAY *rp; |
486 |
|
|
487 |
|
for (rp = r->parent; rp != NULL; rp = rp->parent) |
488 |
|
putchar('\t'); |
489 |
|
} |
490 |
|
|
491 |
|
|
492 |
< |
static |
493 |
< |
oputo(r) /* print origin */ |
494 |
< |
register RAY *r; |
492 |
> |
static void |
493 |
> |
oputo( /* print origin */ |
494 |
> |
RAY *r |
495 |
> |
) |
496 |
|
{ |
497 |
|
(*putreal)(r->rorg[0]); |
498 |
|
(*putreal)(r->rorg[1]); |
500 |
|
} |
501 |
|
|
502 |
|
|
503 |
< |
static |
504 |
< |
oputd(r) /* print direction */ |
505 |
< |
register RAY *r; |
503 |
> |
static void |
504 |
> |
oputd( /* print direction */ |
505 |
> |
RAY *r |
506 |
> |
) |
507 |
|
{ |
508 |
|
(*putreal)(r->rdir[0]); |
509 |
|
(*putreal)(r->rdir[1]); |
511 |
|
} |
512 |
|
|
513 |
|
|
514 |
< |
static |
515 |
< |
oputv(r) /* print value */ |
516 |
< |
register RAY *r; |
514 |
> |
static void |
515 |
> |
oputv( /* print value */ |
516 |
> |
RAY *r |
517 |
> |
) |
518 |
|
{ |
519 |
+ |
if (outform == 'c') { |
520 |
+ |
COLR cout; |
521 |
+ |
setcolr(cout, colval(r->rcol,RED), |
522 |
+ |
colval(r->rcol,GRN), |
523 |
+ |
colval(r->rcol,BLU)); |
524 |
+ |
fwrite((char *)cout, sizeof(cout), 1, stdout); |
525 |
+ |
return; |
526 |
+ |
} |
527 |
|
(*putreal)(colval(r->rcol,RED)); |
528 |
|
(*putreal)(colval(r->rcol,GRN)); |
529 |
|
(*putreal)(colval(r->rcol,BLU)); |
530 |
|
} |
531 |
|
|
532 |
|
|
533 |
< |
static |
534 |
< |
oputl(r) /* print length */ |
535 |
< |
register RAY *r; |
533 |
> |
static void |
534 |
> |
oputl( /* print effective distance */ |
535 |
> |
RAY *r |
536 |
> |
) |
537 |
|
{ |
538 |
|
(*putreal)(r->rt); |
539 |
|
} |
540 |
|
|
541 |
|
|
542 |
< |
static |
543 |
< |
oputp(r) /* print point */ |
544 |
< |
register RAY *r; |
542 |
> |
static void |
543 |
> |
oputL( /* print single ray length */ |
544 |
> |
RAY *r |
545 |
> |
) |
546 |
|
{ |
547 |
+ |
(*putreal)(r->rot); |
548 |
+ |
} |
549 |
+ |
|
550 |
+ |
|
551 |
+ |
static void |
552 |
+ |
oputc( /* print local coordinates */ |
553 |
+ |
RAY *r |
554 |
+ |
) |
555 |
+ |
{ |
556 |
+ |
(*putreal)(r->uv[0]); |
557 |
+ |
(*putreal)(r->uv[1]); |
558 |
+ |
} |
559 |
+ |
|
560 |
+ |
|
561 |
+ |
static void |
562 |
+ |
oputp( /* print point */ |
563 |
+ |
RAY *r |
564 |
+ |
) |
565 |
+ |
{ |
566 |
|
if (r->rot < FHUGE) { |
567 |
|
(*putreal)(r->rop[0]); |
568 |
|
(*putreal)(r->rop[1]); |
575 |
|
} |
576 |
|
|
577 |
|
|
578 |
< |
static |
579 |
< |
oputn(r) /* print normal */ |
580 |
< |
register RAY *r; |
578 |
> |
static void |
579 |
> |
oputN( /* print unperturbed normal */ |
580 |
> |
RAY *r |
581 |
> |
) |
582 |
|
{ |
583 |
|
if (r->rot < FHUGE) { |
584 |
|
(*putreal)(r->ron[0]); |
592 |
|
} |
593 |
|
|
594 |
|
|
595 |
< |
static |
596 |
< |
oputs(r) /* print name */ |
597 |
< |
register RAY *r; |
595 |
> |
static void |
596 |
> |
oputn( /* print perturbed normal */ |
597 |
> |
RAY *r |
598 |
> |
) |
599 |
|
{ |
600 |
+ |
FVECT pnorm; |
601 |
+ |
|
602 |
+ |
if (r->rot >= FHUGE) { |
603 |
+ |
(*putreal)(0.0); |
604 |
+ |
(*putreal)(0.0); |
605 |
+ |
(*putreal)(0.0); |
606 |
+ |
return; |
607 |
+ |
} |
608 |
+ |
raynormal(pnorm, r); |
609 |
+ |
(*putreal)(pnorm[0]); |
610 |
+ |
(*putreal)(pnorm[1]); |
611 |
+ |
(*putreal)(pnorm[2]); |
612 |
+ |
} |
613 |
+ |
|
614 |
+ |
|
615 |
+ |
static void |
616 |
+ |
oputs( /* print name */ |
617 |
+ |
RAY *r |
618 |
+ |
) |
619 |
+ |
{ |
620 |
|
if (r->ro != NULL) |
621 |
|
fputs(r->ro->oname, stdout); |
622 |
|
else |
625 |
|
} |
626 |
|
|
627 |
|
|
628 |
< |
static |
629 |
< |
oputw(r) /* print weight */ |
630 |
< |
register RAY *r; |
628 |
> |
static void |
629 |
> |
oputw( /* print weight */ |
630 |
> |
RAY *r |
631 |
> |
) |
632 |
|
{ |
633 |
|
(*putreal)(r->rweight); |
634 |
|
} |
635 |
|
|
636 |
|
|
637 |
< |
static |
638 |
< |
oputm(r) /* print modifier */ |
639 |
< |
register RAY *r; |
637 |
> |
static void |
638 |
> |
oputW( /* print contribution */ |
639 |
> |
RAY *r |
640 |
> |
) |
641 |
|
{ |
642 |
+ |
double contr[3]; |
643 |
+ |
|
644 |
+ |
raycontrib(contr, r, PRIMARY); |
645 |
+ |
(*putreal)(contr[RED]); |
646 |
+ |
(*putreal)(contr[GRN]); |
647 |
+ |
(*putreal)(contr[BLU]); |
648 |
+ |
} |
649 |
+ |
|
650 |
+ |
|
651 |
+ |
static void |
652 |
+ |
oputm( /* print modifier */ |
653 |
+ |
RAY *r |
654 |
+ |
) |
655 |
+ |
{ |
656 |
|
if (r->ro != NULL) |
657 |
< |
fputs(objptr(r->ro->omod)->oname, stdout); |
657 |
> |
if (r->ro->omod != OVOID) |
658 |
> |
fputs(objptr(r->ro->omod)->oname, stdout); |
659 |
> |
else |
660 |
> |
fputs(VOIDID, stdout); |
661 |
|
else |
662 |
|
putchar('*'); |
663 |
|
putchar('\t'); |
664 |
|
} |
665 |
|
|
666 |
|
|
667 |
< |
static |
668 |
< |
puta(v) /* print ascii value */ |
669 |
< |
double v; |
667 |
> |
static void |
668 |
> |
oputM( /* print material */ |
669 |
> |
RAY *r |
670 |
> |
) |
671 |
|
{ |
672 |
+ |
OBJREC *mat; |
673 |
+ |
|
674 |
+ |
if (r->ro != NULL) { |
675 |
+ |
if ((mat = findmaterial(r->ro)) != NULL) |
676 |
+ |
fputs(mat->oname, stdout); |
677 |
+ |
else |
678 |
+ |
fputs(VOIDID, stdout); |
679 |
+ |
} else |
680 |
+ |
putchar('*'); |
681 |
+ |
putchar('\t'); |
682 |
+ |
} |
683 |
+ |
|
684 |
+ |
|
685 |
+ |
static void |
686 |
+ |
oputtilde( /* output tilde (spacer) */ |
687 |
+ |
RAY *r |
688 |
+ |
) |
689 |
+ |
{ |
690 |
+ |
fputs("~\t", stdout); |
691 |
+ |
} |
692 |
+ |
|
693 |
+ |
|
694 |
+ |
static void |
695 |
+ |
puta( /* print ascii value */ |
696 |
+ |
double v |
697 |
+ |
) |
698 |
+ |
{ |
699 |
|
printf("%e\t", v); |
700 |
|
} |
701 |
|
|
702 |
|
|
703 |
< |
static |
703 |
> |
static void |
704 |
|
putd(v) /* print binary double */ |
705 |
|
double v; |
706 |
|
{ |
708 |
|
} |
709 |
|
|
710 |
|
|
711 |
< |
static |
711 |
> |
static void |
712 |
|
putf(v) /* print binary float */ |
713 |
|
double v; |
714 |
|
{ |